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2017-02-25 23:55:24 +01:00
commit 1fe2e8ab62
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312
openssl-1.0.2f/crypto/rsa/Makefile Normal file
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#
# OpenSSL/crypto/rsa/Makefile
#
DIR= rsa
TOP= ../..
CC= cc
INCLUDES= -I.. -I$(TOP) -I../../include
CFLAG=-g
MAKEFILE= Makefile
AR= ar r
CFLAGS= $(INCLUDES) $(CFLAG)
GENERAL=Makefile
TEST=rsa_test.c
APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC= rsa_eay.c rsa_gen.c rsa_lib.c rsa_sign.c rsa_saos.c rsa_err.c \
rsa_pk1.c rsa_ssl.c rsa_none.c rsa_oaep.c rsa_chk.c rsa_null.c \
rsa_pss.c rsa_x931.c rsa_asn1.c rsa_depr.c rsa_ameth.c rsa_prn.c \
rsa_pmeth.c rsa_crpt.c
LIBOBJ= rsa_eay.o rsa_gen.o rsa_lib.o rsa_sign.o rsa_saos.o rsa_err.o \
rsa_pk1.o rsa_ssl.o rsa_none.o rsa_oaep.o rsa_chk.o rsa_null.o \
rsa_pss.o rsa_x931.o rsa_asn1.o rsa_depr.o rsa_ameth.o rsa_prn.o \
rsa_pmeth.o rsa_crpt.o
SRC= $(LIBSRC)
EXHEADER= rsa.h
HEADER= $(EXHEADER)
ALL= $(GENERAL) $(SRC) $(HEADER)
top:
(cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
all: lib
lib: $(LIBOBJ)
$(AR) $(LIB) $(LIBOBJ)
$(RANLIB) $(LIB) || echo Never mind.
@touch lib
files:
$(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO
links:
@$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
@$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
@$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
install:
@[ -n "$(INSTALLTOP)" ] # should be set by top Makefile...
@headerlist="$(EXHEADER)"; for i in $$headerlist ; \
do \
(cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
done;
tags:
ctags $(SRC)
tests:
lint:
lint -DLINT $(INCLUDES) $(SRC)>fluff
update: depend
depend:
@[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
$(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
dclean:
$(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
mv -f Makefile.new $(MAKEFILE)
clean:
rm -f *.o */*.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
# DO NOT DELETE THIS LINE -- make depend depends on it.
rsa_ameth.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_ameth.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
rsa_ameth.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
rsa_ameth.o: ../../include/openssl/cms.h ../../include/openssl/crypto.h
rsa_ameth.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
rsa_ameth.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
rsa_ameth.o: ../../include/openssl/err.h ../../include/openssl/evp.h
rsa_ameth.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
rsa_ameth.o: ../../include/openssl/objects.h
rsa_ameth.o: ../../include/openssl/opensslconf.h
rsa_ameth.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_ameth.o: ../../include/openssl/pkcs7.h ../../include/openssl/rsa.h
rsa_ameth.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_ameth.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_ameth.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_ameth.o: ../asn1/asn1_locl.h ../cryptlib.h rsa_ameth.c
rsa_asn1.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_asn1.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
rsa_asn1.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
rsa_asn1.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
rsa_asn1.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
rsa_asn1.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
rsa_asn1.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_asn1.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_asn1.o: ../../include/openssl/opensslconf.h
rsa_asn1.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_asn1.o: ../../include/openssl/pkcs7.h ../../include/openssl/rsa.h
rsa_asn1.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_asn1.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_asn1.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_asn1.o: ../cryptlib.h rsa_asn1.c
rsa_chk.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
rsa_chk.o: ../../include/openssl/bn.h ../../include/openssl/crypto.h
rsa_chk.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_chk.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_chk.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_chk.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_chk.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_chk.o: rsa_chk.c
rsa_crpt.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_crpt.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_crpt.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_crpt.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
rsa_crpt.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
rsa_crpt.o: ../../include/openssl/engine.h ../../include/openssl/err.h
rsa_crpt.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_crpt.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_crpt.o: ../../include/openssl/opensslconf.h
rsa_crpt.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_crpt.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
rsa_crpt.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_crpt.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
rsa_crpt.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
rsa_crpt.o: ../../include/openssl/x509_vfy.h ../cryptlib.h rsa_crpt.c
rsa_depr.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_depr.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_depr.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_depr.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_depr.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_depr.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_depr.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_depr.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_depr.o: ../cryptlib.h rsa_depr.c
rsa_eay.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_eay.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_eay.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_eay.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_eay.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_eay.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_eay.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_eay.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_eay.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_eay.c
rsa_err.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
rsa_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
rsa_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
rsa_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
rsa_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/rsa.h
rsa_err.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_err.o: ../../include/openssl/symhacks.h rsa_err.c
rsa_gen.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_gen.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_gen.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_gen.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_gen.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_gen.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_gen.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_gen.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_gen.o: ../cryptlib.h rsa_gen.c
rsa_lib.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_lib.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_lib.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_lib.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
rsa_lib.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
rsa_lib.o: ../../include/openssl/engine.h ../../include/openssl/err.h
rsa_lib.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_lib.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_lib.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
rsa_lib.o: ../../include/openssl/ossl_typ.h ../../include/openssl/pkcs7.h
rsa_lib.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_lib.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_lib.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_lib.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_lib.o: ../cryptlib.h rsa_lib.c
rsa_none.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_none.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_none.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_none.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_none.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_none.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_none.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_none.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_none.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_none.c
rsa_null.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_null.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_null.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_null.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_null.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_null.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_null.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_null.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_null.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_null.c
rsa_oaep.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_oaep.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_oaep.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_oaep.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_oaep.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_oaep.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_oaep.o: ../../include/openssl/opensslconf.h
rsa_oaep.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_oaep.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_oaep.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_oaep.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_oaep.o: ../constant_time_locl.h ../cryptlib.h rsa_oaep.c
rsa_pk1.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_pk1.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_pk1.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_pk1.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_pk1.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_pk1.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_pk1.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_pk1.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_pk1.o: ../../include/openssl/symhacks.h ../constant_time_locl.h
rsa_pk1.o: ../cryptlib.h rsa_pk1.c
rsa_pmeth.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_pmeth.o: ../../include/openssl/asn1t.h ../../include/openssl/bio.h
rsa_pmeth.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
rsa_pmeth.o: ../../include/openssl/cms.h ../../include/openssl/conf.h
rsa_pmeth.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
rsa_pmeth.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
rsa_pmeth.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
rsa_pmeth.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_pmeth.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_pmeth.o: ../../include/openssl/opensslconf.h
rsa_pmeth.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_pmeth.o: ../../include/openssl/pkcs7.h ../../include/openssl/rsa.h
rsa_pmeth.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_pmeth.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_pmeth.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_pmeth.o: ../../include/openssl/x509v3.h ../cryptlib.h ../evp/evp_locl.h
rsa_pmeth.o: rsa_locl.h rsa_pmeth.c
rsa_prn.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_prn.o: ../../include/openssl/bio.h ../../include/openssl/buffer.h
rsa_prn.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
rsa_prn.o: ../../include/openssl/err.h ../../include/openssl/evp.h
rsa_prn.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
rsa_prn.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
rsa_prn.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_prn.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_prn.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_prn.o: ../cryptlib.h rsa_prn.c
rsa_pss.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_pss.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_pss.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_pss.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_pss.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
rsa_pss.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
rsa_pss.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
rsa_pss.o: ../../include/openssl/ossl_typ.h ../../include/openssl/rand.h
rsa_pss.o: ../../include/openssl/rsa.h ../../include/openssl/safestack.h
rsa_pss.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
rsa_pss.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_pss.c
rsa_saos.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_saos.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_saos.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_saos.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
rsa_saos.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
rsa_saos.o: ../../include/openssl/err.h ../../include/openssl/evp.h
rsa_saos.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
rsa_saos.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
rsa_saos.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_saos.o: ../../include/openssl/pkcs7.h ../../include/openssl/rsa.h
rsa_saos.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_saos.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_saos.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_saos.o: ../cryptlib.h rsa_saos.c
rsa_sign.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_sign.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_sign.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_sign.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
rsa_sign.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
rsa_sign.o: ../../include/openssl/err.h ../../include/openssl/evp.h
rsa_sign.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
rsa_sign.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
rsa_sign.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_sign.o: ../../include/openssl/pkcs7.h ../../include/openssl/rsa.h
rsa_sign.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
rsa_sign.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
rsa_sign.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
rsa_sign.o: ../cryptlib.h rsa_locl.h rsa_sign.c
rsa_ssl.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_ssl.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_ssl.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_ssl.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_ssl.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
rsa_ssl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_ssl.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_ssl.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_ssl.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_ssl.c
rsa_x931.o: ../../e_os.h ../../include/openssl/asn1.h
rsa_x931.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
rsa_x931.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
rsa_x931.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
rsa_x931.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
rsa_x931.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
rsa_x931.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
rsa_x931.o: ../../include/openssl/rand.h ../../include/openssl/rsa.h
rsa_x931.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
rsa_x931.o: ../../include/openssl/symhacks.h ../cryptlib.h rsa_x931.c

0
openssl-1.0.2f/crypto/rsa/lib Normal file
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openssl-1.0.2f/crypto/rsa/rsa.h Normal file
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/* crypto/rsa/rsa.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef HEADER_RSA_H
# define HEADER_RSA_H
# include <openssl/asn1.h>
# ifndef OPENSSL_NO_BIO
# include <openssl/bio.h>
# endif
# include <openssl/crypto.h>
# include <openssl/ossl_typ.h>
# ifndef OPENSSL_NO_DEPRECATED
# include <openssl/bn.h>
# endif
# ifdef OPENSSL_NO_RSA
# error RSA is disabled.
# endif
#ifdef __cplusplus
extern "C" {
#endif
/* Declared already in ossl_typ.h */
/* typedef struct rsa_st RSA; */
/* typedef struct rsa_meth_st RSA_METHOD; */
struct rsa_meth_st {
const char *name;
int (*rsa_pub_enc) (int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int (*rsa_pub_dec) (int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int (*rsa_priv_enc) (int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int (*rsa_priv_dec) (int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
/* Can be null */
int (*rsa_mod_exp) (BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
/* Can be null */
int (*bn_mod_exp) (BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
/* called at new */
int (*init) (RSA *rsa);
/* called at free */
int (*finish) (RSA *rsa);
/* RSA_METHOD_FLAG_* things */
int flags;
/* may be needed! */
char *app_data;
/*
* New sign and verify functions: some libraries don't allow arbitrary
* data to be signed/verified: this allows them to be used. Note: for
* this to work the RSA_public_decrypt() and RSA_private_encrypt() should
* *NOT* be used RSA_sign(), RSA_verify() should be used instead. Note:
* for backwards compatibility this functionality is only enabled if the
* RSA_FLAG_SIGN_VER option is set in 'flags'.
*/
int (*rsa_sign) (int type,
const unsigned char *m, unsigned int m_length,
unsigned char *sigret, unsigned int *siglen,
const RSA *rsa);
int (*rsa_verify) (int dtype, const unsigned char *m,
unsigned int m_length, const unsigned char *sigbuf,
unsigned int siglen, const RSA *rsa);
/*
* If this callback is NULL, the builtin software RSA key-gen will be
* used. This is for behavioural compatibility whilst the code gets
* rewired, but one day it would be nice to assume there are no such
* things as "builtin software" implementations.
*/
int (*rsa_keygen) (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
};
struct rsa_st {
/*
* The first parameter is used to pickup errors where this is passed
* instead of aEVP_PKEY, it is set to 0
*/
int pad;
long version;
const RSA_METHOD *meth;
/* functional reference if 'meth' is ENGINE-provided */
ENGINE *engine;
BIGNUM *n;
BIGNUM *e;
BIGNUM *d;
BIGNUM *p;
BIGNUM *q;
BIGNUM *dmp1;
BIGNUM *dmq1;
BIGNUM *iqmp;
/* be careful using this if the RSA structure is shared */
CRYPTO_EX_DATA ex_data;
int references;
int flags;
/* Used to cache montgomery values */
BN_MONT_CTX *_method_mod_n;
BN_MONT_CTX *_method_mod_p;
BN_MONT_CTX *_method_mod_q;
/*
* all BIGNUM values are actually in the following data, if it is not
* NULL
*/
char *bignum_data;
BN_BLINDING *blinding;
BN_BLINDING *mt_blinding;
};
# ifndef OPENSSL_RSA_MAX_MODULUS_BITS
# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
# endif
# ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
# endif
# ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
/* exponent limit enforced for "large" modulus only */
# define OPENSSL_RSA_MAX_PUBEXP_BITS 64
# endif
# define RSA_3 0x3L
# define RSA_F4 0x10001L
# define RSA_METHOD_FLAG_NO_CHECK 0x0001/* don't check pub/private
* match */
# define RSA_FLAG_CACHE_PUBLIC 0x0002
# define RSA_FLAG_CACHE_PRIVATE 0x0004
# define RSA_FLAG_BLINDING 0x0008
# define RSA_FLAG_THREAD_SAFE 0x0010
/*
* This flag means the private key operations will be handled by rsa_mod_exp
* and that they do not depend on the private key components being present:
* for example a key stored in external hardware. Without this flag
* bn_mod_exp gets called when private key components are absent.
*/
# define RSA_FLAG_EXT_PKEY 0x0020
/*
* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify
* functions.
*/
# define RSA_FLAG_SIGN_VER 0x0040
/*
* new with 0.9.6j and 0.9.7b; the built-in
* RSA implementation now uses blinding by
* default (ignoring RSA_FLAG_BLINDING),
* but other engines might not need it
*/
# define RSA_FLAG_NO_BLINDING 0x0080
/*
* new with 0.9.8f; the built-in RSA
* implementation now uses constant time
* operations by default in private key operations,
* e.g., constant time modular exponentiation,
* modular inverse without leaking branches,
* division without leaking branches. This
* flag disables these constant time
* operations and results in faster RSA
* private key operations.
*/
# define RSA_FLAG_NO_CONSTTIME 0x0100
# ifdef OPENSSL_USE_DEPRECATED
/* deprecated name for the flag*/
/*
* new with 0.9.7h; the built-in RSA
* implementation now uses constant time
* modular exponentiation for secret exponents
* by default. This flag causes the
* faster variable sliding window method to
* be used for all exponents.
*/
# define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
# endif
# define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \
pad, NULL)
# define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, \
EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)
# define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
(EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \
len, NULL)
# define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
(EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, \
0, plen)
# define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)
# define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)
# define EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md)
# define EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md)
# define EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)pmd)
# define EVP_PKEY_CTX_get_rsa_oaep_md(ctx, pmd) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)pmd)
# define EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, l, llen) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, (void *)l)
# define EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, l) \
EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT, \
EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, (void *)l)
# define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
# define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2)
# define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3)
# define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
# define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 5)
# define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 6)
# define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 7)
# define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 8)
# define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 9)
# define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 10)
# define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 11)
# define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
# define RSA_PKCS1_PADDING 1
# define RSA_SSLV23_PADDING 2
# define RSA_NO_PADDING 3
# define RSA_PKCS1_OAEP_PADDING 4
# define RSA_X931_PADDING 5
/* EVP_PKEY_ only */
# define RSA_PKCS1_PSS_PADDING 6
# define RSA_PKCS1_PADDING_SIZE 11
# define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
# define RSA_get_app_data(s) RSA_get_ex_data(s,0)
RSA *RSA_new(void);
RSA *RSA_new_method(ENGINE *engine);
int RSA_size(const RSA *rsa);
/* Deprecated version */
# ifndef OPENSSL_NO_DEPRECATED
RSA *RSA_generate_key(int bits, unsigned long e, void
(*callback) (int, int, void *), void *cb_arg);
# endif /* !defined(OPENSSL_NO_DEPRECATED) */
/* New version */
int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
int RSA_check_key(const RSA *);
/* next 4 return -1 on error */
int RSA_public_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int RSA_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int RSA_public_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
int RSA_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
void RSA_free(RSA *r);
/* "up" the RSA object's reference count */
int RSA_up_ref(RSA *r);
int RSA_flags(const RSA *r);
void RSA_set_default_method(const RSA_METHOD *meth);
const RSA_METHOD *RSA_get_default_method(void);
const RSA_METHOD *RSA_get_method(const RSA *rsa);
int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
/* This function needs the memory locking malloc callbacks to be installed */
int RSA_memory_lock(RSA *r);
/* these are the actual SSLeay RSA functions */
const RSA_METHOD *RSA_PKCS1_SSLeay(void);
const RSA_METHOD *RSA_null_method(void);
DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
typedef struct rsa_pss_params_st {
X509_ALGOR *hashAlgorithm;
X509_ALGOR *maskGenAlgorithm;
ASN1_INTEGER *saltLength;
ASN1_INTEGER *trailerField;
} RSA_PSS_PARAMS;
DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
typedef struct rsa_oaep_params_st {
X509_ALGOR *hashFunc;
X509_ALGOR *maskGenFunc;
X509_ALGOR *pSourceFunc;
} RSA_OAEP_PARAMS;
DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
# ifndef OPENSSL_NO_FP_API
int RSA_print_fp(FILE *fp, const RSA *r, int offset);
# endif
# ifndef OPENSSL_NO_BIO
int RSA_print(BIO *bp, const RSA *r, int offset);
# endif
# ifndef OPENSSL_NO_RC4
int i2d_RSA_NET(const RSA *a, unsigned char **pp,
int (*cb) (char *buf, int len, const char *prompt,
int verify), int sgckey);
RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
int (*cb) (char *buf, int len, const char *prompt,
int verify), int sgckey);
int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
int (*cb) (char *buf, int len, const char *prompt,
int verify));
RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
int (*cb) (char *buf, int len, const char *prompt,
int verify));
# endif
/*
* The following 2 functions sign and verify a X509_SIG ASN1 object inside
* PKCS#1 padded RSA encryption
*/
int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
unsigned char *sigret, unsigned int *siglen, RSA *rsa);
int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
const unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
/*
* The following 2 function sign and verify a ASN1_OCTET_STRING object inside
* PKCS#1 padded RSA encryption
*/
int RSA_sign_ASN1_OCTET_STRING(int type,
const unsigned char *m, unsigned int m_length,
unsigned char *sigret, unsigned int *siglen,
RSA *rsa);
int RSA_verify_ASN1_OCTET_STRING(int type, const unsigned char *m,
unsigned int m_length, unsigned char *sigbuf,
unsigned int siglen, RSA *rsa);
int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
void RSA_blinding_off(RSA *rsa);
BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
const unsigned char *f, int fl);
int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
const unsigned char *f, int fl,
int rsa_len);
int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
const unsigned char *f, int fl);
int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
const unsigned char *f, int fl,
int rsa_len);
int PKCS1_MGF1(unsigned char *mask, long len, const unsigned char *seed,
long seedlen, const EVP_MD *dgst);
int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
const unsigned char *f, int fl,
const unsigned char *p, int pl);
int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
const unsigned char *f, int fl, int rsa_len,
const unsigned char *p, int pl);
int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
const unsigned char *from, int flen,
const unsigned char *param, int plen,
const EVP_MD *md, const EVP_MD *mgf1md);
int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
const unsigned char *from, int flen,
int num, const unsigned char *param,
int plen, const EVP_MD *md,
const EVP_MD *mgf1md);
int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
const unsigned char *f, int fl);
int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
const unsigned char *f, int fl, int rsa_len);
int RSA_padding_add_none(unsigned char *to, int tlen, const unsigned char *f,
int fl);
int RSA_padding_check_none(unsigned char *to, int tlen,
const unsigned char *f, int fl, int rsa_len);
int RSA_padding_add_X931(unsigned char *to, int tlen, const unsigned char *f,
int fl);
int RSA_padding_check_X931(unsigned char *to, int tlen,
const unsigned char *f, int fl, int rsa_len);
int RSA_X931_hash_id(int nid);
int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
const EVP_MD *Hash, const unsigned char *EM,
int sLen);
int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
const unsigned char *mHash, const EVP_MD *Hash,
int sLen);
int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
const EVP_MD *Hash, const EVP_MD *mgf1Hash,
const unsigned char *EM, int sLen);
int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
const unsigned char *mHash,
const EVP_MD *Hash, const EVP_MD *mgf1Hash,
int sLen);
int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int RSA_set_ex_data(RSA *r, int idx, void *arg);
void *RSA_get_ex_data(const RSA *r, int idx);
RSA *RSAPublicKey_dup(RSA *rsa);
RSA *RSAPrivateKey_dup(RSA *rsa);
/*
* If this flag is set the RSA method is FIPS compliant and can be used in
* FIPS mode. This is set in the validated module method. If an application
* sets this flag in its own methods it is its responsibility to ensure the
* result is compliant.
*/
# define RSA_FLAG_FIPS_METHOD 0x0400
/*
* If this flag is set the operations normally disabled in FIPS mode are
* permitted it is then the applications responsibility to ensure that the
* usage is compliant.
*/
# define RSA_FLAG_NON_FIPS_ALLOW 0x0400
/*
* Application has decided PRNG is good enough to generate a key: don't
* check.
*/
# define RSA_FLAG_CHECKED 0x0800
/* BEGIN ERROR CODES */
/*
* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
void ERR_load_RSA_strings(void);
/* Error codes for the RSA functions. */
/* Function codes. */
# define RSA_F_CHECK_PADDING_MD 140
# define RSA_F_DO_RSA_PRINT 146
# define RSA_F_INT_RSA_VERIFY 145
# define RSA_F_MEMORY_LOCK 100
# define RSA_F_OLD_RSA_PRIV_DECODE 147
# define RSA_F_PKEY_RSA_CTRL 143
# define RSA_F_PKEY_RSA_CTRL_STR 144
# define RSA_F_PKEY_RSA_SIGN 142
# define RSA_F_PKEY_RSA_VERIFY 154
# define RSA_F_PKEY_RSA_VERIFYRECOVER 141
# define RSA_F_RSA_ALGOR_TO_MD 157
# define RSA_F_RSA_BUILTIN_KEYGEN 129
# define RSA_F_RSA_CHECK_KEY 123
# define RSA_F_RSA_CMS_DECRYPT 158
# define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101
# define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102
# define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103
# define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104
# define RSA_F_RSA_GENERATE_KEY 105
# define RSA_F_RSA_GENERATE_KEY_EX 155
# define RSA_F_RSA_ITEM_VERIFY 156
# define RSA_F_RSA_MEMORY_LOCK 130
# define RSA_F_RSA_MGF1_TO_MD 159
# define RSA_F_RSA_NEW_METHOD 106
# define RSA_F_RSA_NULL 124
# define RSA_F_RSA_NULL_MOD_EXP 131
# define RSA_F_RSA_NULL_PRIVATE_DECRYPT 132
# define RSA_F_RSA_NULL_PRIVATE_ENCRYPT 133
# define RSA_F_RSA_NULL_PUBLIC_DECRYPT 134
# define RSA_F_RSA_NULL_PUBLIC_ENCRYPT 135
# define RSA_F_RSA_PADDING_ADD_NONE 107
# define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
# define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1 160
# define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125
# define RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1 148
# define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
# define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
# define RSA_F_RSA_PADDING_ADD_SSLV23 110
# define RSA_F_RSA_PADDING_ADD_X931 127
# define RSA_F_RSA_PADDING_CHECK_NONE 111
# define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122
# define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1 161
# define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112
# define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113
# define RSA_F_RSA_PADDING_CHECK_SSLV23 114
# define RSA_F_RSA_PADDING_CHECK_X931 128
# define RSA_F_RSA_PRINT 115
# define RSA_F_RSA_PRINT_FP 116
# define RSA_F_RSA_PRIVATE_DECRYPT 150
# define RSA_F_RSA_PRIVATE_ENCRYPT 151
# define RSA_F_RSA_PRIV_DECODE 137
# define RSA_F_RSA_PRIV_ENCODE 138
# define RSA_F_RSA_PSS_TO_CTX 162
# define RSA_F_RSA_PUBLIC_DECRYPT 152
# define RSA_F_RSA_PUBLIC_ENCRYPT 153
# define RSA_F_RSA_PUB_DECODE 139
# define RSA_F_RSA_SETUP_BLINDING 136
# define RSA_F_RSA_SIGN 117
# define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
# define RSA_F_RSA_VERIFY 119
# define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
# define RSA_F_RSA_VERIFY_PKCS1_PSS 126
# define RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1 149
/* Reason codes. */
# define RSA_R_ALGORITHM_MISMATCH 100
# define RSA_R_BAD_E_VALUE 101
# define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
# define RSA_R_BAD_PAD_BYTE_COUNT 103
# define RSA_R_BAD_SIGNATURE 104
# define RSA_R_BLOCK_TYPE_IS_NOT_01 106
# define RSA_R_BLOCK_TYPE_IS_NOT_02 107
# define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
# define RSA_R_DATA_TOO_LARGE 109
# define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
# define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 132
# define RSA_R_DATA_TOO_SMALL 111
# define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 122
# define RSA_R_DIGEST_DOES_NOT_MATCH 166
# define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112
# define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124
# define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125
# define RSA_R_D_E_NOT_CONGRUENT_TO_1 123
# define RSA_R_FIRST_OCTET_INVALID 133
# define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE 144
# define RSA_R_INVALID_DIGEST 160
# define RSA_R_INVALID_DIGEST_LENGTH 143
# define RSA_R_INVALID_HEADER 137
# define RSA_R_INVALID_KEYBITS 145
# define RSA_R_INVALID_LABEL 161
# define RSA_R_INVALID_MESSAGE_LENGTH 131
# define RSA_R_INVALID_MGF1_MD 156
# define RSA_R_INVALID_OAEP_PARAMETERS 162
# define RSA_R_INVALID_PADDING 138
# define RSA_R_INVALID_PADDING_MODE 141
# define RSA_R_INVALID_PSS_PARAMETERS 149
# define RSA_R_INVALID_PSS_SALTLEN 146
# define RSA_R_INVALID_SALT_LENGTH 150
# define RSA_R_INVALID_TRAILER 139
# define RSA_R_INVALID_X931_DIGEST 142
# define RSA_R_IQMP_NOT_INVERSE_OF_Q 126
# define RSA_R_KEY_SIZE_TOO_SMALL 120
# define RSA_R_LAST_OCTET_INVALID 134
# define RSA_R_MODULUS_TOO_LARGE 105
# define RSA_R_NON_FIPS_RSA_METHOD 157
# define RSA_R_NO_PUBLIC_EXPONENT 140
# define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
# define RSA_R_N_DOES_NOT_EQUAL_P_Q 127
# define RSA_R_OAEP_DECODING_ERROR 121
# define RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE 158
# define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE 148
# define RSA_R_PADDING_CHECK_FAILED 114
# define RSA_R_PKCS_DECODING_ERROR 159
# define RSA_R_P_NOT_PRIME 128
# define RSA_R_Q_NOT_PRIME 129
# define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED 130
# define RSA_R_SLEN_CHECK_FAILED 136
# define RSA_R_SLEN_RECOVERY_FAILED 135
# define RSA_R_SSLV3_ROLLBACK_ATTACK 115
# define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
# define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
# define RSA_R_UNKNOWN_DIGEST 163
# define RSA_R_UNKNOWN_MASK_DIGEST 151
# define RSA_R_UNKNOWN_PADDING_TYPE 118
# define RSA_R_UNKNOWN_PSS_DIGEST 152
# define RSA_R_UNSUPPORTED_ENCRYPTION_TYPE 164
# define RSA_R_UNSUPPORTED_LABEL_SOURCE 165
# define RSA_R_UNSUPPORTED_MASK_ALGORITHM 153
# define RSA_R_UNSUPPORTED_MASK_PARAMETER 154
# define RSA_R_UNSUPPORTED_SIGNATURE_TYPE 155
# define RSA_R_VALUE_MISSING 147
# define RSA_R_WRONG_SIGNATURE_LENGTH 119
#ifdef __cplusplus
}
#endif
#endif

959
openssl-1.0.2f/crypto/rsa/rsa_ameth.c Normal file
View File

@@ -0,0 +1,959 @@
/* crypto/rsa/rsa_ameth.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/rsa.h>
#include <openssl/bn.h>
#ifndef OPENSSL_NO_CMS
# include <openssl/cms.h>
#endif
#include "asn1_locl.h"
static int rsa_cms_sign(CMS_SignerInfo *si);
static int rsa_cms_verify(CMS_SignerInfo *si);
static int rsa_cms_decrypt(CMS_RecipientInfo *ri);
static int rsa_cms_encrypt(CMS_RecipientInfo *ri);
static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
{
unsigned char *penc = NULL;
int penclen;
penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc);
if (penclen <= 0)
return 0;
if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_RSA),
V_ASN1_NULL, NULL, penc, penclen))
return 1;
OPENSSL_free(penc);
return 0;
}
static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
{
const unsigned char *p;
int pklen;
RSA *rsa = NULL;
if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, NULL, pubkey))
return 0;
if (!(rsa = d2i_RSAPublicKey(NULL, &p, pklen))) {
RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB);
return 0;
}
EVP_PKEY_assign_RSA(pkey, rsa);
return 1;
}
static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
{
if (BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) != 0
|| BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) != 0)
return 0;
return 1;
}
static int old_rsa_priv_decode(EVP_PKEY *pkey,
const unsigned char **pder, int derlen)
{
RSA *rsa;
if (!(rsa = d2i_RSAPrivateKey(NULL, pder, derlen))) {
RSAerr(RSA_F_OLD_RSA_PRIV_DECODE, ERR_R_RSA_LIB);
return 0;
}
EVP_PKEY_assign_RSA(pkey, rsa);
return 1;
}
static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
{
return i2d_RSAPrivateKey(pkey->pkey.rsa, pder);
}
static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
unsigned char *rk = NULL;
int rklen;
rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
if (rklen <= 0) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0,
V_ASN1_NULL, NULL, rk, rklen)) {
RSAerr(RSA_F_RSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
}
static int rsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
{
const unsigned char *p;
int pklen;
if (!PKCS8_pkey_get0(NULL, &p, &pklen, NULL, p8))
return 0;
return old_rsa_priv_decode(pkey, &p, pklen);
}
static int int_rsa_size(const EVP_PKEY *pkey)
{
return RSA_size(pkey->pkey.rsa);
}
static int rsa_bits(const EVP_PKEY *pkey)
{
return BN_num_bits(pkey->pkey.rsa->n);
}
static void int_rsa_free(EVP_PKEY *pkey)
{
RSA_free(pkey->pkey.rsa);
}
static void update_buflen(const BIGNUM *b, size_t *pbuflen)
{
size_t i;
if (!b)
return;
if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
*pbuflen = i;
}
static int do_rsa_print(BIO *bp, const RSA *x, int off, int priv)
{
char *str;
const char *s;
unsigned char *m = NULL;
int ret = 0, mod_len = 0;
size_t buf_len = 0;
update_buflen(x->n, &buf_len);
update_buflen(x->e, &buf_len);
if (priv) {
update_buflen(x->d, &buf_len);
update_buflen(x->p, &buf_len);
update_buflen(x->q, &buf_len);
update_buflen(x->dmp1, &buf_len);
update_buflen(x->dmq1, &buf_len);
update_buflen(x->iqmp, &buf_len);
}
m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
if (m == NULL) {
RSAerr(RSA_F_DO_RSA_PRINT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (x->n != NULL)
mod_len = BN_num_bits(x->n);
if (!BIO_indent(bp, off, 128))
goto err;
if (priv && x->d) {
if (BIO_printf(bp, "Private-Key: (%d bit)\n", mod_len)
<= 0)
goto err;
str = "modulus:";
s = "publicExponent:";
} else {
if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len)
<= 0)
goto err;
str = "Modulus:";
s = "Exponent:";
}
if (!ASN1_bn_print(bp, str, x->n, m, off))
goto err;
if (!ASN1_bn_print(bp, s, x->e, m, off))
goto err;
if (priv) {
if (!ASN1_bn_print(bp, "privateExponent:", x->d, m, off))
goto err;
if (!ASN1_bn_print(bp, "prime1:", x->p, m, off))
goto err;
if (!ASN1_bn_print(bp, "prime2:", x->q, m, off))
goto err;
if (!ASN1_bn_print(bp, "exponent1:", x->dmp1, m, off))
goto err;
if (!ASN1_bn_print(bp, "exponent2:", x->dmq1, m, off))
goto err;
if (!ASN1_bn_print(bp, "coefficient:", x->iqmp, m, off))
goto err;
}
ret = 1;
err:
if (m != NULL)
OPENSSL_free(m);
return (ret);
}
static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
return do_rsa_print(bp, pkey->pkey.rsa, indent, 0);
}
static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
return do_rsa_print(bp, pkey->pkey.rsa, indent, 1);
}
/* Given an MGF1 Algorithm ID decode to an Algorithm Identifier */
static X509_ALGOR *rsa_mgf1_decode(X509_ALGOR *alg)
{
const unsigned char *p;
int plen;
if (alg == NULL || alg->parameter == NULL)
return NULL;
if (OBJ_obj2nid(alg->algorithm) != NID_mgf1)
return NULL;
if (alg->parameter->type != V_ASN1_SEQUENCE)
return NULL;
p = alg->parameter->value.sequence->data;
plen = alg->parameter->value.sequence->length;
return d2i_X509_ALGOR(NULL, &p, plen);
}
static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg,
X509_ALGOR **pmaskHash)
{
const unsigned char *p;
int plen;
RSA_PSS_PARAMS *pss;
*pmaskHash = NULL;
if (!alg->parameter || alg->parameter->type != V_ASN1_SEQUENCE)
return NULL;
p = alg->parameter->value.sequence->data;
plen = alg->parameter->value.sequence->length;
pss = d2i_RSA_PSS_PARAMS(NULL, &p, plen);
if (!pss)
return NULL;
*pmaskHash = rsa_mgf1_decode(pss->maskGenAlgorithm);
return pss;
}
static int rsa_pss_param_print(BIO *bp, RSA_PSS_PARAMS *pss,
X509_ALGOR *maskHash, int indent)
{
int rv = 0;
if (!pss) {
if (BIO_puts(bp, " (INVALID PSS PARAMETERS)\n") <= 0)
return 0;
return 1;
}
if (BIO_puts(bp, "\n") <= 0)
goto err;
if (!BIO_indent(bp, indent, 128))
goto err;
if (BIO_puts(bp, "Hash Algorithm: ") <= 0)
goto err;
if (pss->hashAlgorithm) {
if (i2a_ASN1_OBJECT(bp, pss->hashAlgorithm->algorithm) <= 0)
goto err;
} else if (BIO_puts(bp, "sha1 (default)") <= 0)
goto err;
if (BIO_puts(bp, "\n") <= 0)
goto err;
if (!BIO_indent(bp, indent, 128))
goto err;
if (BIO_puts(bp, "Mask Algorithm: ") <= 0)
goto err;
if (pss->maskGenAlgorithm) {
if (i2a_ASN1_OBJECT(bp, pss->maskGenAlgorithm->algorithm) <= 0)
goto err;
if (BIO_puts(bp, " with ") <= 0)
goto err;
if (maskHash) {
if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0)
goto err;
} else if (BIO_puts(bp, "INVALID") <= 0)
goto err;
} else if (BIO_puts(bp, "mgf1 with sha1 (default)") <= 0)
goto err;
BIO_puts(bp, "\n");
if (!BIO_indent(bp, indent, 128))
goto err;
if (BIO_puts(bp, "Salt Length: 0x") <= 0)
goto err;
if (pss->saltLength) {
if (i2a_ASN1_INTEGER(bp, pss->saltLength) <= 0)
goto err;
} else if (BIO_puts(bp, "14 (default)") <= 0)
goto err;
BIO_puts(bp, "\n");
if (!BIO_indent(bp, indent, 128))
goto err;
if (BIO_puts(bp, "Trailer Field: 0x") <= 0)
goto err;
if (pss->trailerField) {
if (i2a_ASN1_INTEGER(bp, pss->trailerField) <= 0)
goto err;
} else if (BIO_puts(bp, "BC (default)") <= 0)
goto err;
BIO_puts(bp, "\n");
rv = 1;
err:
return rv;
}
static int rsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx)
{
if (OBJ_obj2nid(sigalg->algorithm) == NID_rsassaPss) {
int rv;
RSA_PSS_PARAMS *pss;
X509_ALGOR *maskHash;
pss = rsa_pss_decode(sigalg, &maskHash);
rv = rsa_pss_param_print(bp, pss, maskHash, indent);
if (pss)
RSA_PSS_PARAMS_free(pss);
if (maskHash)
X509_ALGOR_free(maskHash);
if (!rv)
return 0;
} else if (!sig && BIO_puts(bp, "\n") <= 0)
return 0;
if (sig)
return X509_signature_dump(bp, sig, indent);
return 1;
}
static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
{
X509_ALGOR *alg = NULL;
switch (op) {
case ASN1_PKEY_CTRL_PKCS7_SIGN:
if (arg1 == 0)
PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg);
break;
case ASN1_PKEY_CTRL_PKCS7_ENCRYPT:
if (arg1 == 0)
PKCS7_RECIP_INFO_get0_alg(arg2, &alg);
break;
#ifndef OPENSSL_NO_CMS
case ASN1_PKEY_CTRL_CMS_SIGN:
if (arg1 == 0)
return rsa_cms_sign(arg2);
else if (arg1 == 1)
return rsa_cms_verify(arg2);
break;
case ASN1_PKEY_CTRL_CMS_ENVELOPE:
if (arg1 == 0)
return rsa_cms_encrypt(arg2);
else if (arg1 == 1)
return rsa_cms_decrypt(arg2);
break;
case ASN1_PKEY_CTRL_CMS_RI_TYPE:
*(int *)arg2 = CMS_RECIPINFO_TRANS;
return 1;
#endif
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
*(int *)arg2 = NID_sha256;
return 1;
default:
return -2;
}
if (alg)
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
return 1;
}
/* allocate and set algorithm ID from EVP_MD, default SHA1 */
static int rsa_md_to_algor(X509_ALGOR **palg, const EVP_MD *md)
{
if (EVP_MD_type(md) == NID_sha1)
return 1;
*palg = X509_ALGOR_new();
if (!*palg)
return 0;
X509_ALGOR_set_md(*palg, md);
return 1;
}
/* Allocate and set MGF1 algorithm ID from EVP_MD */
static int rsa_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md)
{
X509_ALGOR *algtmp = NULL;
ASN1_STRING *stmp = NULL;
*palg = NULL;
if (EVP_MD_type(mgf1md) == NID_sha1)
return 1;
/* need to embed algorithm ID inside another */
if (!rsa_md_to_algor(&algtmp, mgf1md))
goto err;
if (!ASN1_item_pack(algtmp, ASN1_ITEM_rptr(X509_ALGOR), &stmp))
goto err;
*palg = X509_ALGOR_new();
if (!*palg)
goto err;
X509_ALGOR_set0(*palg, OBJ_nid2obj(NID_mgf1), V_ASN1_SEQUENCE, stmp);
stmp = NULL;
err:
if (stmp)
ASN1_STRING_free(stmp);
if (algtmp)
X509_ALGOR_free(algtmp);
if (*palg)
return 1;
return 0;
}
/* convert algorithm ID to EVP_MD, default SHA1 */
static const EVP_MD *rsa_algor_to_md(X509_ALGOR *alg)
{
const EVP_MD *md;
if (!alg)
return EVP_sha1();
md = EVP_get_digestbyobj(alg->algorithm);
if (md == NULL)
RSAerr(RSA_F_RSA_ALGOR_TO_MD, RSA_R_UNKNOWN_DIGEST);
return md;
}
/* convert MGF1 algorithm ID to EVP_MD, default SHA1 */
static const EVP_MD *rsa_mgf1_to_md(X509_ALGOR *alg, X509_ALGOR *maskHash)
{
const EVP_MD *md;
if (!alg)
return EVP_sha1();
/* Check mask and lookup mask hash algorithm */
if (OBJ_obj2nid(alg->algorithm) != NID_mgf1) {
RSAerr(RSA_F_RSA_MGF1_TO_MD, RSA_R_UNSUPPORTED_MASK_ALGORITHM);
return NULL;
}
if (!maskHash) {
RSAerr(RSA_F_RSA_MGF1_TO_MD, RSA_R_UNSUPPORTED_MASK_PARAMETER);
return NULL;
}
md = EVP_get_digestbyobj(maskHash->algorithm);
if (md == NULL) {
RSAerr(RSA_F_RSA_MGF1_TO_MD, RSA_R_UNKNOWN_MASK_DIGEST);
return NULL;
}
return md;
}
/*
* Convert EVP_PKEY_CTX is PSS mode into corresponding algorithm parameter,
* suitable for setting an AlgorithmIdentifier.
*/
static ASN1_STRING *rsa_ctx_to_pss(EVP_PKEY_CTX *pkctx)
{
const EVP_MD *sigmd, *mgf1md;
RSA_PSS_PARAMS *pss = NULL;
ASN1_STRING *os = NULL;
EVP_PKEY *pk = EVP_PKEY_CTX_get0_pkey(pkctx);
int saltlen, rv = 0;
if (EVP_PKEY_CTX_get_signature_md(pkctx, &sigmd) <= 0)
goto err;
if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
goto err;
if (!EVP_PKEY_CTX_get_rsa_pss_saltlen(pkctx, &saltlen))
goto err;
if (saltlen == -1)
saltlen = EVP_MD_size(sigmd);
else if (saltlen == -2) {
saltlen = EVP_PKEY_size(pk) - EVP_MD_size(sigmd) - 2;
if (((EVP_PKEY_bits(pk) - 1) & 0x7) == 0)
saltlen--;
}
pss = RSA_PSS_PARAMS_new();
if (!pss)
goto err;
if (saltlen != 20) {
pss->saltLength = ASN1_INTEGER_new();
if (!pss->saltLength)
goto err;
if (!ASN1_INTEGER_set(pss->saltLength, saltlen))
goto err;
}
if (!rsa_md_to_algor(&pss->hashAlgorithm, sigmd))
goto err;
if (!rsa_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md))
goto err;
/* Finally create string with pss parameter encoding. */
if (!ASN1_item_pack(pss, ASN1_ITEM_rptr(RSA_PSS_PARAMS), &os))
goto err;
rv = 1;
err:
if (pss)
RSA_PSS_PARAMS_free(pss);
if (rv)
return os;
if (os)
ASN1_STRING_free(os);
return NULL;
}
/*
* From PSS AlgorithmIdentifier set public key parameters. If pkey isn't NULL
* then the EVP_MD_CTX is setup and initalised. If it is NULL parameters are
* passed to pkctx instead.
*/
static int rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx,
X509_ALGOR *sigalg, EVP_PKEY *pkey)
{
int rv = -1;
int saltlen;
const EVP_MD *mgf1md = NULL, *md = NULL;
RSA_PSS_PARAMS *pss;
X509_ALGOR *maskHash;
/* Sanity check: make sure it is PSS */
if (OBJ_obj2nid(sigalg->algorithm) != NID_rsassaPss) {
RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_UNSUPPORTED_SIGNATURE_TYPE);
return -1;
}
/* Decode PSS parameters */
pss = rsa_pss_decode(sigalg, &maskHash);
if (pss == NULL) {
RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_INVALID_PSS_PARAMETERS);
goto err;
}
mgf1md = rsa_mgf1_to_md(pss->maskGenAlgorithm, maskHash);
if (!mgf1md)
goto err;
md = rsa_algor_to_md(pss->hashAlgorithm);
if (!md)
goto err;
if (pss->saltLength) {
saltlen = ASN1_INTEGER_get(pss->saltLength);
/*
* Could perform more salt length sanity checks but the main RSA
* routines will trap other invalid values anyway.
*/
if (saltlen < 0) {
RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_INVALID_SALT_LENGTH);
goto err;
}
} else
saltlen = 20;
/*
* low-level routines support only trailer field 0xbc (value 1) and
* PKCS#1 says we should reject any other value anyway.
*/
if (pss->trailerField && ASN1_INTEGER_get(pss->trailerField) != 1) {
RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_INVALID_TRAILER);
goto err;
}
/* We have all parameters now set up context */
if (pkey) {
if (!EVP_DigestVerifyInit(ctx, &pkctx, md, NULL, pkey))
goto err;
} else {
const EVP_MD *checkmd;
if (EVP_PKEY_CTX_get_signature_md(pkctx, &checkmd) <= 0)
goto err;
if (EVP_MD_type(md) != EVP_MD_type(checkmd)) {
RSAerr(RSA_F_RSA_PSS_TO_CTX, RSA_R_DIGEST_DOES_NOT_MATCH);
goto err;
}
}
if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_PSS_PADDING) <= 0)
goto err;
if (EVP_PKEY_CTX_set_rsa_pss_saltlen(pkctx, saltlen) <= 0)
goto err;
if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
goto err;
/* Carry on */
rv = 1;
err:
RSA_PSS_PARAMS_free(pss);
if (maskHash)
X509_ALGOR_free(maskHash);
return rv;
}
static int rsa_cms_verify(CMS_SignerInfo *si)
{
int nid, nid2;
X509_ALGOR *alg;
EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
nid = OBJ_obj2nid(alg->algorithm);
if (nid == NID_rsaEncryption)
return 1;
if (nid == NID_rsassaPss)
return rsa_pss_to_ctx(NULL, pkctx, alg, NULL);
/* Workaround for some implementation that use a signature OID */
if (OBJ_find_sigid_algs(nid, NULL, &nid2)) {
if (nid2 == NID_rsaEncryption)
return 1;
}
return 0;
}
/*
* Customised RSA item verification routine. This is called when a signature
* is encountered requiring special handling. We currently only handle PSS.
*/
static int rsa_item_verify(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
X509_ALGOR *sigalg, ASN1_BIT_STRING *sig,
EVP_PKEY *pkey)
{
/* Sanity check: make sure it is PSS */
if (OBJ_obj2nid(sigalg->algorithm) != NID_rsassaPss) {
RSAerr(RSA_F_RSA_ITEM_VERIFY, RSA_R_UNSUPPORTED_SIGNATURE_TYPE);
return -1;
}
if (rsa_pss_to_ctx(ctx, NULL, sigalg, pkey) > 0) {
/* Carry on */
return 2;
}
return -1;
}
static int rsa_cms_sign(CMS_SignerInfo *si)
{
int pad_mode = RSA_PKCS1_PADDING;
X509_ALGOR *alg;
EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
ASN1_STRING *os = NULL;
CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
if (pkctx) {
if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
return 0;
}
if (pad_mode == RSA_PKCS1_PADDING) {
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
return 1;
}
/* We don't support it */
if (pad_mode != RSA_PKCS1_PSS_PADDING)
return 0;
os = rsa_ctx_to_pss(pkctx);
if (!os)
return 0;
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsassaPss), V_ASN1_SEQUENCE, os);
return 1;
}
static int rsa_item_sign(EVP_MD_CTX *ctx, const ASN1_ITEM *it, void *asn,
X509_ALGOR *alg1, X509_ALGOR *alg2,
ASN1_BIT_STRING *sig)
{
int pad_mode;
EVP_PKEY_CTX *pkctx = ctx->pctx;
if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
return 0;
if (pad_mode == RSA_PKCS1_PADDING)
return 2;
if (pad_mode == RSA_PKCS1_PSS_PADDING) {
ASN1_STRING *os1 = NULL;
os1 = rsa_ctx_to_pss(pkctx);
if (!os1)
return 0;
/* Duplicate parameters if we have to */
if (alg2) {
ASN1_STRING *os2 = ASN1_STRING_dup(os1);
if (!os2) {
ASN1_STRING_free(os1);
return 0;
}
X509_ALGOR_set0(alg2, OBJ_nid2obj(NID_rsassaPss),
V_ASN1_SEQUENCE, os2);
}
X509_ALGOR_set0(alg1, OBJ_nid2obj(NID_rsassaPss),
V_ASN1_SEQUENCE, os1);
return 3;
}
return 2;
}
static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg,
X509_ALGOR **pmaskHash)
{
const unsigned char *p;
int plen;
RSA_OAEP_PARAMS *pss;
*pmaskHash = NULL;
if (!alg->parameter || alg->parameter->type != V_ASN1_SEQUENCE)
return NULL;
p = alg->parameter->value.sequence->data;
plen = alg->parameter->value.sequence->length;
pss = d2i_RSA_OAEP_PARAMS(NULL, &p, plen);
if (!pss)
return NULL;
*pmaskHash = rsa_mgf1_decode(pss->maskGenFunc);
return pss;
}
static int rsa_cms_decrypt(CMS_RecipientInfo *ri)
{
EVP_PKEY_CTX *pkctx;
X509_ALGOR *cmsalg;
int nid;
int rv = -1;
unsigned char *label = NULL;
int labellen = 0;
const EVP_MD *mgf1md = NULL, *md = NULL;
RSA_OAEP_PARAMS *oaep;
X509_ALGOR *maskHash;
pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
if (!pkctx)
return 0;
if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg))
return -1;
nid = OBJ_obj2nid(cmsalg->algorithm);
if (nid == NID_rsaEncryption)
return 1;
if (nid != NID_rsaesOaep) {
RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_ENCRYPTION_TYPE);
return -1;
}
/* Decode OAEP parameters */
oaep = rsa_oaep_decode(cmsalg, &maskHash);
if (oaep == NULL) {
RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_OAEP_PARAMETERS);
goto err;
}
mgf1md = rsa_mgf1_to_md(oaep->maskGenFunc, maskHash);
if (!mgf1md)
goto err;
md = rsa_algor_to_md(oaep->hashFunc);
if (!md)
goto err;
if (oaep->pSourceFunc) {
X509_ALGOR *plab = oaep->pSourceFunc;
if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) {
RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_LABEL_SOURCE);
goto err;
}
if (plab->parameter->type != V_ASN1_OCTET_STRING) {
RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_LABEL);
goto err;
}
label = plab->parameter->value.octet_string->data;
/* Stop label being freed when OAEP parameters are freed */
plab->parameter->value.octet_string->data = NULL;
labellen = plab->parameter->value.octet_string->length;
}
if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0)
goto err;
if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0)
goto err;
if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
goto err;
if (EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0)
goto err;
/* Carry on */
rv = 1;
err:
RSA_OAEP_PARAMS_free(oaep);
if (maskHash)
X509_ALGOR_free(maskHash);
return rv;
}
static int rsa_cms_encrypt(CMS_RecipientInfo *ri)
{
const EVP_MD *md, *mgf1md;
RSA_OAEP_PARAMS *oaep = NULL;
ASN1_STRING *os = NULL;
X509_ALGOR *alg;
EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen;
unsigned char *label;
CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg);
if (pkctx) {
if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
return 0;
}
if (pad_mode == RSA_PKCS1_PADDING) {
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
return 1;
}
/* Not supported */
if (pad_mode != RSA_PKCS1_OAEP_PADDING)
return 0;
if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0)
goto err;
if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
goto err;
labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label);
if (labellen < 0)
goto err;
oaep = RSA_OAEP_PARAMS_new();
if (!oaep)
goto err;
if (!rsa_md_to_algor(&oaep->hashFunc, md))
goto err;
if (!rsa_md_to_mgf1(&oaep->maskGenFunc, mgf1md))
goto err;
if (labellen > 0) {
ASN1_OCTET_STRING *los = ASN1_OCTET_STRING_new();
oaep->pSourceFunc = X509_ALGOR_new();
if (!oaep->pSourceFunc)
goto err;
if (!los)
goto err;
if (!ASN1_OCTET_STRING_set(los, label, labellen)) {
ASN1_OCTET_STRING_free(los);
goto err;
}
X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified),
V_ASN1_OCTET_STRING, los);
}
/* create string with pss parameter encoding. */
if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os))
goto err;
X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os);
os = NULL;
rv = 1;
err:
if (oaep)
RSA_OAEP_PARAMS_free(oaep);
if (os)
ASN1_STRING_free(os);
return rv;
}
const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[] = {
{
EVP_PKEY_RSA,
EVP_PKEY_RSA,
ASN1_PKEY_SIGPARAM_NULL,
"RSA",
"OpenSSL RSA method",
rsa_pub_decode,
rsa_pub_encode,
rsa_pub_cmp,
rsa_pub_print,
rsa_priv_decode,
rsa_priv_encode,
rsa_priv_print,
int_rsa_size,
rsa_bits,
0, 0, 0, 0, 0, 0,
rsa_sig_print,
int_rsa_free,
rsa_pkey_ctrl,
old_rsa_priv_decode,
old_rsa_priv_encode,
rsa_item_verify,
rsa_item_sign},
{
EVP_PKEY_RSA2,
EVP_PKEY_RSA,
ASN1_PKEY_ALIAS}
};

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openssl-1.0.2f/crypto/rsa/rsa_asn1.c Normal file
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/* rsa_asn1.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2000.
*/
/* ====================================================================
* Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/x509.h>
#include <openssl/asn1t.h>
/* Override the default free and new methods */
static int rsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg)
{
if (operation == ASN1_OP_NEW_PRE) {
*pval = (ASN1_VALUE *)RSA_new();
if (*pval)
return 2;
return 0;
} else if (operation == ASN1_OP_FREE_PRE) {
RSA_free((RSA *)*pval);
*pval = NULL;
return 2;
}
return 1;
}
ASN1_SEQUENCE_cb(RSAPrivateKey, rsa_cb) = {
ASN1_SIMPLE(RSA, version, LONG),
ASN1_SIMPLE(RSA, n, BIGNUM),
ASN1_SIMPLE(RSA, e, BIGNUM),
ASN1_SIMPLE(RSA, d, BIGNUM),
ASN1_SIMPLE(RSA, p, BIGNUM),
ASN1_SIMPLE(RSA, q, BIGNUM),
ASN1_SIMPLE(RSA, dmp1, BIGNUM),
ASN1_SIMPLE(RSA, dmq1, BIGNUM),
ASN1_SIMPLE(RSA, iqmp, BIGNUM)
} ASN1_SEQUENCE_END_cb(RSA, RSAPrivateKey)
ASN1_SEQUENCE_cb(RSAPublicKey, rsa_cb) = {
ASN1_SIMPLE(RSA, n, BIGNUM),
ASN1_SIMPLE(RSA, e, BIGNUM),
} ASN1_SEQUENCE_END_cb(RSA, RSAPublicKey)
ASN1_SEQUENCE(RSA_PSS_PARAMS) = {
ASN1_EXP_OPT(RSA_PSS_PARAMS, hashAlgorithm, X509_ALGOR,0),
ASN1_EXP_OPT(RSA_PSS_PARAMS, maskGenAlgorithm, X509_ALGOR,1),
ASN1_EXP_OPT(RSA_PSS_PARAMS, saltLength, ASN1_INTEGER,2),
ASN1_EXP_OPT(RSA_PSS_PARAMS, trailerField, ASN1_INTEGER,3)
} ASN1_SEQUENCE_END(RSA_PSS_PARAMS)
IMPLEMENT_ASN1_FUNCTIONS(RSA_PSS_PARAMS)
ASN1_SEQUENCE(RSA_OAEP_PARAMS) = {
ASN1_EXP_OPT(RSA_OAEP_PARAMS, hashFunc, X509_ALGOR, 0),
ASN1_EXP_OPT(RSA_OAEP_PARAMS, maskGenFunc, X509_ALGOR, 1),
ASN1_EXP_OPT(RSA_OAEP_PARAMS, pSourceFunc, X509_ALGOR, 2),
} ASN1_SEQUENCE_END(RSA_OAEP_PARAMS)
IMPLEMENT_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPrivateKey, RSAPrivateKey)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(RSA, RSAPublicKey, RSAPublicKey)
RSA *RSAPublicKey_dup(RSA *rsa)
{
return ASN1_item_dup(ASN1_ITEM_rptr(RSAPublicKey), rsa);
}
RSA *RSAPrivateKey_dup(RSA *rsa)
{
return ASN1_item_dup(ASN1_ITEM_rptr(RSAPrivateKey), rsa);
}

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214
openssl-1.0.2f/crypto/rsa/rsa_chk.c Normal file
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/* crypto/rsa/rsa_chk.c */
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*/
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/rsa.h>
int RSA_check_key(const RSA *key)
{
BIGNUM *i, *j, *k, *l, *m;
BN_CTX *ctx;
int r;
int ret = 1;
if (!key->p || !key->q || !key->n || !key->e || !key->d) {
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_VALUE_MISSING);
return 0;
}
i = BN_new();
j = BN_new();
k = BN_new();
l = BN_new();
m = BN_new();
ctx = BN_CTX_new();
if (i == NULL || j == NULL || k == NULL || l == NULL ||
m == NULL || ctx == NULL) {
ret = -1;
RSAerr(RSA_F_RSA_CHECK_KEY, ERR_R_MALLOC_FAILURE);
goto err;
}
/* p prime? */
r = BN_is_prime_ex(key->p, BN_prime_checks, NULL, NULL);
if (r != 1) {
ret = r;
if (r != 0)
goto err;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_P_NOT_PRIME);
}
/* q prime? */
r = BN_is_prime_ex(key->q, BN_prime_checks, NULL, NULL);
if (r != 1) {
ret = r;
if (r != 0)
goto err;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_Q_NOT_PRIME);
}
/* n = p*q? */
r = BN_mul(i, key->p, key->q, ctx);
if (!r) {
ret = -1;
goto err;
}
if (BN_cmp(i, key->n) != 0) {
ret = 0;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_N_DOES_NOT_EQUAL_P_Q);
}
/* d*e = 1 mod lcm(p-1,q-1)? */
r = BN_sub(i, key->p, BN_value_one());
if (!r) {
ret = -1;
goto err;
}
r = BN_sub(j, key->q, BN_value_one());
if (!r) {
ret = -1;
goto err;
}
/* now compute k = lcm(i,j) */
r = BN_mul(l, i, j, ctx);
if (!r) {
ret = -1;
goto err;
}
r = BN_gcd(m, i, j, ctx);
if (!r) {
ret = -1;
goto err;
}
r = BN_div(k, NULL, l, m, ctx); /* remainder is 0 */
if (!r) {
ret = -1;
goto err;
}
r = BN_mod_mul(i, key->d, key->e, k, ctx);
if (!r) {
ret = -1;
goto err;
}
if (!BN_is_one(i)) {
ret = 0;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_D_E_NOT_CONGRUENT_TO_1);
}
if (key->dmp1 != NULL && key->dmq1 != NULL && key->iqmp != NULL) {
/* dmp1 = d mod (p-1)? */
r = BN_sub(i, key->p, BN_value_one());
if (!r) {
ret = -1;
goto err;
}
r = BN_mod(j, key->d, i, ctx);
if (!r) {
ret = -1;
goto err;
}
if (BN_cmp(j, key->dmp1) != 0) {
ret = 0;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_DMP1_NOT_CONGRUENT_TO_D);
}
/* dmq1 = d mod (q-1)? */
r = BN_sub(i, key->q, BN_value_one());
if (!r) {
ret = -1;
goto err;
}
r = BN_mod(j, key->d, i, ctx);
if (!r) {
ret = -1;
goto err;
}
if (BN_cmp(j, key->dmq1) != 0) {
ret = 0;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_DMQ1_NOT_CONGRUENT_TO_D);
}
/* iqmp = q^-1 mod p? */
if (!BN_mod_inverse(i, key->q, key->p, ctx)) {
ret = -1;
goto err;
}
if (BN_cmp(i, key->iqmp) != 0) {
ret = 0;
RSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_IQMP_NOT_INVERSE_OF_Q);
}
}
err:
if (i != NULL)
BN_free(i);
if (j != NULL)
BN_free(j);
if (k != NULL)
BN_free(k);
if (l != NULL)
BN_free(l);
if (m != NULL)
BN_free(m);
if (ctx != NULL)
BN_CTX_free(ctx);
return (ret);
}

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openssl-1.0.2f/crypto/rsa/rsa_crpt.c Normal file
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/* crypto/rsa/rsa_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <openssl/crypto.h>
#include "cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
int RSA_size(const RSA *r)
{
return (BN_num_bytes(r->n));
}
int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
RSA *rsa, int padding)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_PUBLIC_ENCRYPT, RSA_R_NON_FIPS_RSA_METHOD);
return -1;
}
#endif
return (rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding));
}
int RSA_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_PRIVATE_ENCRYPT, RSA_R_NON_FIPS_RSA_METHOD);
return -1;
}
#endif
return (rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding));
}
int RSA_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_PRIVATE_DECRYPT, RSA_R_NON_FIPS_RSA_METHOD);
return -1;
}
#endif
return (rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding));
}
int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
RSA *rsa, int padding)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_PUBLIC_DECRYPT, RSA_R_NON_FIPS_RSA_METHOD);
return -1;
}
#endif
return (rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
}
int RSA_flags(const RSA *r)
{
return ((r == NULL) ? 0 : r->meth->flags);
}
void RSA_blinding_off(RSA *rsa)
{
if (rsa->blinding != NULL) {
BN_BLINDING_free(rsa->blinding);
rsa->blinding = NULL;
}
rsa->flags &= ~RSA_FLAG_BLINDING;
rsa->flags |= RSA_FLAG_NO_BLINDING;
}
int RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
{
int ret = 0;
if (rsa->blinding != NULL)
RSA_blinding_off(rsa);
rsa->blinding = RSA_setup_blinding(rsa, ctx);
if (rsa->blinding == NULL)
goto err;
rsa->flags |= RSA_FLAG_BLINDING;
rsa->flags &= ~RSA_FLAG_NO_BLINDING;
ret = 1;
err:
return (ret);
}
static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,
const BIGNUM *q, BN_CTX *ctx)
{
BIGNUM *ret = NULL, *r0, *r1, *r2;
if (d == NULL || p == NULL || q == NULL)
return NULL;
BN_CTX_start(ctx);
r0 = BN_CTX_get(ctx);
r1 = BN_CTX_get(ctx);
r2 = BN_CTX_get(ctx);
if (r2 == NULL)
goto err;
if (!BN_sub(r1, p, BN_value_one()))
goto err;
if (!BN_sub(r2, q, BN_value_one()))
goto err;
if (!BN_mul(r0, r1, r2, ctx))
goto err;
ret = BN_mod_inverse(NULL, d, r0, ctx);
err:
BN_CTX_end(ctx);
return ret;
}
BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
{
BIGNUM local_n;
BIGNUM *e, *n;
BN_CTX *ctx;
BN_BLINDING *ret = NULL;
if (in_ctx == NULL) {
if ((ctx = BN_CTX_new()) == NULL)
return 0;
} else
ctx = in_ctx;
BN_CTX_start(ctx);
e = BN_CTX_get(ctx);
if (e == NULL) {
RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
goto err;
}
if (rsa->e == NULL) {
e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
if (e == NULL) {
RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);
goto err;
}
} else
e = rsa->e;
if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL) {
/*
* if PRNG is not properly seeded, resort to secret exponent as
* unpredictable seed
*/
RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0);
}
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
/* Set BN_FLG_CONSTTIME flag */
n = &local_n;
BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);
} else
n = rsa->n;
ret = BN_BLINDING_create_param(NULL, e, n, ctx,
rsa->meth->bn_mod_exp, rsa->_method_mod_n);
if (ret == NULL) {
RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
goto err;
}
CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret));
err:
BN_CTX_end(ctx);
if (in_ctx == NULL)
BN_CTX_free(ctx);
if (rsa->e == NULL)
BN_free(e);
return ret;
}

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107
openssl-1.0.2f/crypto/rsa/rsa_depr.c Normal file
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/* crypto/rsa/rsa_depr.c */
/* ====================================================================
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/*
* NB: This file contains deprecated functions (compatibility wrappers to the
* "new" versions).
*/
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#ifdef OPENSSL_NO_DEPRECATED
static void *dummy = &dummy;
#else
RSA *RSA_generate_key(int bits, unsigned long e_value,
void (*callback) (int, int, void *), void *cb_arg)
{
BN_GENCB cb;
int i;
RSA *rsa = RSA_new();
BIGNUM *e = BN_new();
if (!rsa || !e)
goto err;
/*
* The problem is when building with 8, 16, or 32 BN_ULONG, unsigned long
* can be larger
*/
for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
if (e_value & (1UL << i))
if (BN_set_bit(e, i) == 0)
goto err;
}
BN_GENCB_set_old(&cb, callback, cb_arg);
if (RSA_generate_key_ex(rsa, bits, e, &cb)) {
BN_free(e);
return rsa;
}
err:
if (e)
BN_free(e);
if (rsa)
RSA_free(rsa);
return 0;
}
#endif

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904
openssl-1.0.2f/crypto/rsa/rsa_eay.c Normal file
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/* crypto/rsa/rsa_eay.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#ifndef RSA_NULL
static int RSA_eay_public_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_eay_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_eay_public_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_eay_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_eay_mod_exp(BIGNUM *r0, const BIGNUM *i, RSA *rsa,
BN_CTX *ctx);
static int RSA_eay_init(RSA *rsa);
static int RSA_eay_finish(RSA *rsa);
static RSA_METHOD rsa_pkcs1_eay_meth = {
"Eric Young's PKCS#1 RSA",
RSA_eay_public_encrypt,
RSA_eay_public_decrypt, /* signature verification */
RSA_eay_private_encrypt, /* signing */
RSA_eay_private_decrypt,
RSA_eay_mod_exp,
BN_mod_exp_mont, /* XXX probably we should not use Montgomery
* if e == 3 */
RSA_eay_init,
RSA_eay_finish,
0, /* flags */
NULL,
0, /* rsa_sign */
0, /* rsa_verify */
NULL /* rsa_keygen */
};
const RSA_METHOD *RSA_PKCS1_SSLeay(void)
{
return (&rsa_pkcs1_eay_meth);
}
static int RSA_eay_public_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
BIGNUM *f, *ret;
int i, j, k, num = 0, r = -1;
unsigned char *buf = NULL;
BN_CTX *ctx = NULL;
if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_MODULUS_TOO_LARGE);
return -1;
}
if (BN_ucmp(rsa->n, rsa->e) <= 0) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE);
return -1;
}
/* for large moduli, enforce exponent limit */
if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS) {
if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE);
return -1;
}
}
if ((ctx = BN_CTX_new()) == NULL)
goto err;
BN_CTX_start(ctx);
f = BN_CTX_get(ctx);
ret = BN_CTX_get(ctx);
num = BN_num_bytes(rsa->n);
buf = OPENSSL_malloc(num);
if (!f || !ret || !buf) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
switch (padding) {
case RSA_PKCS1_PADDING:
i = RSA_padding_add_PKCS1_type_2(buf, num, from, flen);
break;
# ifndef OPENSSL_NO_SHA
case RSA_PKCS1_OAEP_PADDING:
i = RSA_padding_add_PKCS1_OAEP(buf, num, from, flen, NULL, 0);
break;
# endif
case RSA_SSLV23_PADDING:
i = RSA_padding_add_SSLv23(buf, num, from, flen);
break;
case RSA_NO_PADDING:
i = RSA_padding_add_none(buf, num, from, flen);
break;
default:
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
goto err;
}
if (i <= 0)
goto err;
if (BN_bin2bn(buf, num, f) == NULL)
goto err;
if (BN_ucmp(f, rsa->n) >= 0) {
/* usually the padding functions would catch this */
RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,
RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
goto err;
}
if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
goto err;
if (!rsa->meth->bn_mod_exp(ret, f, rsa->e, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
/*
* put in leading 0 bytes if the number is less than the length of the
* modulus
*/
j = BN_num_bytes(ret);
i = BN_bn2bin(ret, &(to[num - j]));
for (k = 0; k < (num - i); k++)
to[k] = 0;
r = num;
err:
if (ctx != NULL) {
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
if (buf != NULL) {
OPENSSL_cleanse(buf, num);
OPENSSL_free(buf);
}
return (r);
}
static BN_BLINDING *rsa_get_blinding(RSA *rsa, int *local, BN_CTX *ctx)
{
BN_BLINDING *ret;
int got_write_lock = 0;
CRYPTO_THREADID cur;
CRYPTO_r_lock(CRYPTO_LOCK_RSA);
if (rsa->blinding == NULL) {
CRYPTO_r_unlock(CRYPTO_LOCK_RSA);
CRYPTO_w_lock(CRYPTO_LOCK_RSA);
got_write_lock = 1;
if (rsa->blinding == NULL)
rsa->blinding = RSA_setup_blinding(rsa, ctx);
}
ret = rsa->blinding;
if (ret == NULL)
goto err;
CRYPTO_THREADID_current(&cur);
if (!CRYPTO_THREADID_cmp(&cur, BN_BLINDING_thread_id(ret))) {
/* rsa->blinding is ours! */
*local = 1;
} else {
/* resort to rsa->mt_blinding instead */
/*
* instructs rsa_blinding_convert(), rsa_blinding_invert() that the
* BN_BLINDING is shared, meaning that accesses require locks, and
* that the blinding factor must be stored outside the BN_BLINDING
*/
*local = 0;
if (rsa->mt_blinding == NULL) {
if (!got_write_lock) {
CRYPTO_r_unlock(CRYPTO_LOCK_RSA);
CRYPTO_w_lock(CRYPTO_LOCK_RSA);
got_write_lock = 1;
}
if (rsa->mt_blinding == NULL)
rsa->mt_blinding = RSA_setup_blinding(rsa, ctx);
}
ret = rsa->mt_blinding;
}
err:
if (got_write_lock)
CRYPTO_w_unlock(CRYPTO_LOCK_RSA);
else
CRYPTO_r_unlock(CRYPTO_LOCK_RSA);
return ret;
}
static int rsa_blinding_convert(BN_BLINDING *b, BIGNUM *f, BIGNUM *unblind,
BN_CTX *ctx)
{
if (unblind == NULL)
/*
* Local blinding: store the unblinding factor in BN_BLINDING.
*/
return BN_BLINDING_convert_ex(f, NULL, b, ctx);
else {
/*
* Shared blinding: store the unblinding factor outside BN_BLINDING.
*/
int ret;
CRYPTO_w_lock(CRYPTO_LOCK_RSA_BLINDING);
ret = BN_BLINDING_convert_ex(f, unblind, b, ctx);
CRYPTO_w_unlock(CRYPTO_LOCK_RSA_BLINDING);
return ret;
}
}
static int rsa_blinding_invert(BN_BLINDING *b, BIGNUM *f, BIGNUM *unblind,
BN_CTX *ctx)
{
/*
* For local blinding, unblind is set to NULL, and BN_BLINDING_invert_ex
* will use the unblinding factor stored in BN_BLINDING. If BN_BLINDING
* is shared between threads, unblind must be non-null:
* BN_BLINDING_invert_ex will then use the local unblinding factor, and
* will only read the modulus from BN_BLINDING. In both cases it's safe
* to access the blinding without a lock.
*/
return BN_BLINDING_invert_ex(f, unblind, b, ctx);
}
/* signing */
static int RSA_eay_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
BIGNUM *f, *ret, *res;
int i, j, k, num = 0, r = -1;
unsigned char *buf = NULL;
BN_CTX *ctx = NULL;
int local_blinding = 0;
/*
* Used only if the blinding structure is shared. A non-NULL unblind
* instructs rsa_blinding_convert() and rsa_blinding_invert() to store
* the unblinding factor outside the blinding structure.
*/
BIGNUM *unblind = NULL;
BN_BLINDING *blinding = NULL;
if ((ctx = BN_CTX_new()) == NULL)
goto err;
BN_CTX_start(ctx);
f = BN_CTX_get(ctx);
ret = BN_CTX_get(ctx);
num = BN_num_bytes(rsa->n);
buf = OPENSSL_malloc(num);
if (!f || !ret || !buf) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
switch (padding) {
case RSA_PKCS1_PADDING:
i = RSA_padding_add_PKCS1_type_1(buf, num, from, flen);
break;
case RSA_X931_PADDING:
i = RSA_padding_add_X931(buf, num, from, flen);
break;
case RSA_NO_PADDING:
i = RSA_padding_add_none(buf, num, from, flen);
break;
case RSA_SSLV23_PADDING:
default:
RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
goto err;
}
if (i <= 0)
goto err;
if (BN_bin2bn(buf, num, f) == NULL)
goto err;
if (BN_ucmp(f, rsa->n) >= 0) {
/* usually the padding functions would catch this */
RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
goto err;
}
if (!(rsa->flags & RSA_FLAG_NO_BLINDING)) {
blinding = rsa_get_blinding(rsa, &local_blinding, ctx);
if (blinding == NULL) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_INTERNAL_ERROR);
goto err;
}
}
if (blinding != NULL) {
if (!local_blinding && ((unblind = BN_CTX_get(ctx)) == NULL)) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!rsa_blinding_convert(blinding, f, unblind, ctx))
goto err;
}
if ((rsa->flags & RSA_FLAG_EXT_PKEY) ||
((rsa->p != NULL) &&
(rsa->q != NULL) &&
(rsa->dmp1 != NULL) && (rsa->dmq1 != NULL) && (rsa->iqmp != NULL))) {
if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx))
goto err;
} else {
BIGNUM local_d;
BIGNUM *d = NULL;
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
BN_init(&local_d);
d = &local_d;
BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
} else
d = rsa->d;
if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
goto err;
if (!rsa->meth->bn_mod_exp(ret, f, d, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
}
if (blinding)
if (!rsa_blinding_invert(blinding, ret, unblind, ctx))
goto err;
if (padding == RSA_X931_PADDING) {
BN_sub(f, rsa->n, ret);
if (BN_cmp(ret, f) > 0)
res = f;
else
res = ret;
} else
res = ret;
/*
* put in leading 0 bytes if the number is less than the length of the
* modulus
*/
j = BN_num_bytes(res);
i = BN_bn2bin(res, &(to[num - j]));
for (k = 0; k < (num - i); k++)
to[k] = 0;
r = num;
err:
if (ctx != NULL) {
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
if (buf != NULL) {
OPENSSL_cleanse(buf, num);
OPENSSL_free(buf);
}
return (r);
}
static int RSA_eay_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
BIGNUM *f, *ret;
int j, num = 0, r = -1;
unsigned char *p;
unsigned char *buf = NULL;
BN_CTX *ctx = NULL;
int local_blinding = 0;
/*
* Used only if the blinding structure is shared. A non-NULL unblind
* instructs rsa_blinding_convert() and rsa_blinding_invert() to store
* the unblinding factor outside the blinding structure.
*/
BIGNUM *unblind = NULL;
BN_BLINDING *blinding = NULL;
if ((ctx = BN_CTX_new()) == NULL)
goto err;
BN_CTX_start(ctx);
f = BN_CTX_get(ctx);
ret = BN_CTX_get(ctx);
num = BN_num_bytes(rsa->n);
buf = OPENSSL_malloc(num);
if (!f || !ret || !buf) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
/*
* This check was for equality but PGP does evil things and chops off the
* top '0' bytes
*/
if (flen > num) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,
RSA_R_DATA_GREATER_THAN_MOD_LEN);
goto err;
}
/* make data into a big number */
if (BN_bin2bn(from, (int)flen, f) == NULL)
goto err;
if (BN_ucmp(f, rsa->n) >= 0) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,
RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
goto err;
}
if (!(rsa->flags & RSA_FLAG_NO_BLINDING)) {
blinding = rsa_get_blinding(rsa, &local_blinding, ctx);
if (blinding == NULL) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, ERR_R_INTERNAL_ERROR);
goto err;
}
}
if (blinding != NULL) {
if (!local_blinding && ((unblind = BN_CTX_get(ctx)) == NULL)) {
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!rsa_blinding_convert(blinding, f, unblind, ctx))
goto err;
}
/* do the decrypt */
if ((rsa->flags & RSA_FLAG_EXT_PKEY) ||
((rsa->p != NULL) &&
(rsa->q != NULL) &&
(rsa->dmp1 != NULL) && (rsa->dmq1 != NULL) && (rsa->iqmp != NULL))) {
if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx))
goto err;
} else {
BIGNUM local_d;
BIGNUM *d = NULL;
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
d = &local_d;
BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
} else
d = rsa->d;
if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
goto err;
if (!rsa->meth->bn_mod_exp(ret, f, d, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
}
if (blinding)
if (!rsa_blinding_invert(blinding, ret, unblind, ctx))
goto err;
p = buf;
j = BN_bn2bin(ret, p); /* j is only used with no-padding mode */
switch (padding) {
case RSA_PKCS1_PADDING:
r = RSA_padding_check_PKCS1_type_2(to, num, buf, j, num);
break;
# ifndef OPENSSL_NO_SHA
case RSA_PKCS1_OAEP_PADDING:
r = RSA_padding_check_PKCS1_OAEP(to, num, buf, j, num, NULL, 0);
break;
# endif
case RSA_SSLV23_PADDING:
r = RSA_padding_check_SSLv23(to, num, buf, j, num);
break;
case RSA_NO_PADDING:
r = RSA_padding_check_none(to, num, buf, j, num);
break;
default:
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
goto err;
}
if (r < 0)
RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, RSA_R_PADDING_CHECK_FAILED);
err:
if (ctx != NULL) {
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
if (buf != NULL) {
OPENSSL_cleanse(buf, num);
OPENSSL_free(buf);
}
return (r);
}
/* signature verification */
static int RSA_eay_public_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
BIGNUM *f, *ret;
int i, num = 0, r = -1;
unsigned char *p;
unsigned char *buf = NULL;
BN_CTX *ctx = NULL;
if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_MODULUS_TOO_LARGE);
return -1;
}
if (BN_ucmp(rsa->n, rsa->e) <= 0) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);
return -1;
}
/* for large moduli, enforce exponent limit */
if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS) {
if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);
return -1;
}
}
if ((ctx = BN_CTX_new()) == NULL)
goto err;
BN_CTX_start(ctx);
f = BN_CTX_get(ctx);
ret = BN_CTX_get(ctx);
num = BN_num_bytes(rsa->n);
buf = OPENSSL_malloc(num);
if (!f || !ret || !buf) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, ERR_R_MALLOC_FAILURE);
goto err;
}
/*
* This check was for equality but PGP does evil things and chops off the
* top '0' bytes
*/
if (flen > num) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_DATA_GREATER_THAN_MOD_LEN);
goto err;
}
if (BN_bin2bn(from, flen, f) == NULL)
goto err;
if (BN_ucmp(f, rsa->n) >= 0) {
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,
RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
goto err;
}
if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
goto err;
if (!rsa->meth->bn_mod_exp(ret, f, rsa->e, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
if ((padding == RSA_X931_PADDING) && ((ret->d[0] & 0xf) != 12))
if (!BN_sub(ret, rsa->n, ret))
goto err;
p = buf;
i = BN_bn2bin(ret, p);
switch (padding) {
case RSA_PKCS1_PADDING:
r = RSA_padding_check_PKCS1_type_1(to, num, buf, i, num);
break;
case RSA_X931_PADDING:
r = RSA_padding_check_X931(to, num, buf, i, num);
break;
case RSA_NO_PADDING:
r = RSA_padding_check_none(to, num, buf, i, num);
break;
default:
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
goto err;
}
if (r < 0)
RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_PADDING_CHECK_FAILED);
err:
if (ctx != NULL) {
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
if (buf != NULL) {
OPENSSL_cleanse(buf, num);
OPENSSL_free(buf);
}
return (r);
}
static int RSA_eay_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
{
BIGNUM *r1, *m1, *vrfy;
BIGNUM local_dmp1, local_dmq1, local_c, local_r1;
BIGNUM *dmp1, *dmq1, *c, *pr1;
int ret = 0;
BN_CTX_start(ctx);
r1 = BN_CTX_get(ctx);
m1 = BN_CTX_get(ctx);
vrfy = BN_CTX_get(ctx);
{
BIGNUM local_p, local_q;
BIGNUM *p = NULL, *q = NULL;
/*
* Make sure BN_mod_inverse in Montgomery intialization uses the
* BN_FLG_CONSTTIME flag (unless RSA_FLAG_NO_CONSTTIME is set)
*/
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
BN_init(&local_p);
p = &local_p;
BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME);
BN_init(&local_q);
q = &local_q;
BN_with_flags(q, rsa->q, BN_FLG_CONSTTIME);
} else {
p = rsa->p;
q = rsa->q;
}
if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) {
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_p, CRYPTO_LOCK_RSA, p, ctx))
goto err;
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_q, CRYPTO_LOCK_RSA, q, ctx))
goto err;
}
}
if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
if (!BN_MONT_CTX_set_locked
(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
goto err;
/* compute I mod q */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
c = &local_c;
BN_with_flags(c, I, BN_FLG_CONSTTIME);
if (!BN_mod(r1, c, rsa->q, ctx))
goto err;
} else {
if (!BN_mod(r1, I, rsa->q, ctx))
goto err;
}
/* compute r1^dmq1 mod q */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
dmq1 = &local_dmq1;
BN_with_flags(dmq1, rsa->dmq1, BN_FLG_CONSTTIME);
} else
dmq1 = rsa->dmq1;
if (!rsa->meth->bn_mod_exp(m1, r1, dmq1, rsa->q, ctx, rsa->_method_mod_q))
goto err;
/* compute I mod p */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
c = &local_c;
BN_with_flags(c, I, BN_FLG_CONSTTIME);
if (!BN_mod(r1, c, rsa->p, ctx))
goto err;
} else {
if (!BN_mod(r1, I, rsa->p, ctx))
goto err;
}
/* compute r1^dmp1 mod p */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
dmp1 = &local_dmp1;
BN_with_flags(dmp1, rsa->dmp1, BN_FLG_CONSTTIME);
} else
dmp1 = rsa->dmp1;
if (!rsa->meth->bn_mod_exp(r0, r1, dmp1, rsa->p, ctx, rsa->_method_mod_p))
goto err;
if (!BN_sub(r0, r0, m1))
goto err;
/*
* This will help stop the size of r0 increasing, which does affect the
* multiply if it optimised for a power of 2 size
*/
if (BN_is_negative(r0))
if (!BN_add(r0, r0, rsa->p))
goto err;
if (!BN_mul(r1, r0, rsa->iqmp, ctx))
goto err;
/* Turn BN_FLG_CONSTTIME flag on before division operation */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
pr1 = &local_r1;
BN_with_flags(pr1, r1, BN_FLG_CONSTTIME);
} else
pr1 = r1;
if (!BN_mod(r0, pr1, rsa->p, ctx))
goto err;
/*
* If p < q it is occasionally possible for the correction of adding 'p'
* if r0 is negative above to leave the result still negative. This can
* break the private key operations: the following second correction
* should *always* correct this rare occurrence. This will *never* happen
* with OpenSSL generated keys because they ensure p > q [steve]
*/
if (BN_is_negative(r0))
if (!BN_add(r0, r0, rsa->p))
goto err;
if (!BN_mul(r1, r0, rsa->q, ctx))
goto err;
if (!BN_add(r0, r1, m1))
goto err;
if (rsa->e && rsa->n) {
if (!rsa->meth->bn_mod_exp(vrfy, r0, rsa->e, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
/*
* If 'I' was greater than (or equal to) rsa->n, the operation will
* be equivalent to using 'I mod n'. However, the result of the
* verify will *always* be less than 'n' so we don't check for
* absolute equality, just congruency.
*/
if (!BN_sub(vrfy, vrfy, I))
goto err;
if (!BN_mod(vrfy, vrfy, rsa->n, ctx))
goto err;
if (BN_is_negative(vrfy))
if (!BN_add(vrfy, vrfy, rsa->n))
goto err;
if (!BN_is_zero(vrfy)) {
/*
* 'I' and 'vrfy' aren't congruent mod n. Don't leak
* miscalculated CRT output, just do a raw (slower) mod_exp and
* return that instead.
*/
BIGNUM local_d;
BIGNUM *d = NULL;
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
d = &local_d;
BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
} else
d = rsa->d;
if (!rsa->meth->bn_mod_exp(r0, I, d, rsa->n, ctx,
rsa->_method_mod_n))
goto err;
}
}
ret = 1;
err:
BN_CTX_end(ctx);
return (ret);
}
static int RSA_eay_init(RSA *rsa)
{
rsa->flags |= RSA_FLAG_CACHE_PUBLIC | RSA_FLAG_CACHE_PRIVATE;
return (1);
}
static int RSA_eay_finish(RSA *rsa)
{
if (rsa->_method_mod_n != NULL)
BN_MONT_CTX_free(rsa->_method_mod_n);
if (rsa->_method_mod_p != NULL)
BN_MONT_CTX_free(rsa->_method_mod_p);
if (rsa->_method_mod_q != NULL)
BN_MONT_CTX_free(rsa->_method_mod_q);
return (1);
}
#endif

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openssl-1.0.2f/crypto/rsa/rsa_eay.o Normal file
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openssl-1.0.2f/crypto/rsa/rsa_err.c Normal file
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@@ -0,0 +1,247 @@
/* crypto/rsa/rsa_err.c */
/* ====================================================================
* Copyright (c) 1999-2014 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/*
* NOTE: this file was auto generated by the mkerr.pl script: any changes
* made to it will be overwritten when the script next updates this file,
* only reason strings will be preserved.
*/
#include <stdio.h>
#include <openssl/err.h>
#include <openssl/rsa.h>
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
# define ERR_FUNC(func) ERR_PACK(ERR_LIB_RSA,func,0)
# define ERR_REASON(reason) ERR_PACK(ERR_LIB_RSA,0,reason)
static ERR_STRING_DATA RSA_str_functs[] = {
{ERR_FUNC(RSA_F_CHECK_PADDING_MD), "CHECK_PADDING_MD"},
{ERR_FUNC(RSA_F_DO_RSA_PRINT), "DO_RSA_PRINT"},
{ERR_FUNC(RSA_F_INT_RSA_VERIFY), "INT_RSA_VERIFY"},
{ERR_FUNC(RSA_F_MEMORY_LOCK), "MEMORY_LOCK"},
{ERR_FUNC(RSA_F_OLD_RSA_PRIV_DECODE), "OLD_RSA_PRIV_DECODE"},
{ERR_FUNC(RSA_F_PKEY_RSA_CTRL), "PKEY_RSA_CTRL"},
{ERR_FUNC(RSA_F_PKEY_RSA_CTRL_STR), "PKEY_RSA_CTRL_STR"},
{ERR_FUNC(RSA_F_PKEY_RSA_SIGN), "PKEY_RSA_SIGN"},
{ERR_FUNC(RSA_F_PKEY_RSA_VERIFY), "PKEY_RSA_VERIFY"},
{ERR_FUNC(RSA_F_PKEY_RSA_VERIFYRECOVER), "PKEY_RSA_VERIFYRECOVER"},
{ERR_FUNC(RSA_F_RSA_ALGOR_TO_MD), "RSA_ALGOR_TO_MD"},
{ERR_FUNC(RSA_F_RSA_BUILTIN_KEYGEN), "RSA_BUILTIN_KEYGEN"},
{ERR_FUNC(RSA_F_RSA_CHECK_KEY), "RSA_check_key"},
{ERR_FUNC(RSA_F_RSA_CMS_DECRYPT), "RSA_CMS_DECRYPT"},
{ERR_FUNC(RSA_F_RSA_EAY_PRIVATE_DECRYPT), "RSA_EAY_PRIVATE_DECRYPT"},
{ERR_FUNC(RSA_F_RSA_EAY_PRIVATE_ENCRYPT), "RSA_EAY_PRIVATE_ENCRYPT"},
{ERR_FUNC(RSA_F_RSA_EAY_PUBLIC_DECRYPT), "RSA_EAY_PUBLIC_DECRYPT"},
{ERR_FUNC(RSA_F_RSA_EAY_PUBLIC_ENCRYPT), "RSA_EAY_PUBLIC_ENCRYPT"},
{ERR_FUNC(RSA_F_RSA_GENERATE_KEY), "RSA_generate_key"},
{ERR_FUNC(RSA_F_RSA_GENERATE_KEY_EX), "RSA_generate_key_ex"},
{ERR_FUNC(RSA_F_RSA_ITEM_VERIFY), "RSA_ITEM_VERIFY"},
{ERR_FUNC(RSA_F_RSA_MEMORY_LOCK), "RSA_memory_lock"},
{ERR_FUNC(RSA_F_RSA_MGF1_TO_MD), "RSA_MGF1_TO_MD"},
{ERR_FUNC(RSA_F_RSA_NEW_METHOD), "RSA_new_method"},
{ERR_FUNC(RSA_F_RSA_NULL), "RSA_NULL"},
{ERR_FUNC(RSA_F_RSA_NULL_MOD_EXP), "RSA_NULL_MOD_EXP"},
{ERR_FUNC(RSA_F_RSA_NULL_PRIVATE_DECRYPT), "RSA_NULL_PRIVATE_DECRYPT"},
{ERR_FUNC(RSA_F_RSA_NULL_PRIVATE_ENCRYPT), "RSA_NULL_PRIVATE_ENCRYPT"},
{ERR_FUNC(RSA_F_RSA_NULL_PUBLIC_DECRYPT), "RSA_NULL_PUBLIC_DECRYPT"},
{ERR_FUNC(RSA_F_RSA_NULL_PUBLIC_ENCRYPT), "RSA_NULL_PUBLIC_ENCRYPT"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_NONE), "RSA_padding_add_none"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP),
"RSA_padding_add_PKCS1_OAEP"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1),
"RSA_padding_add_PKCS1_OAEP_mgf1"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_PSS), "RSA_padding_add_PKCS1_PSS"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1),
"RSA_padding_add_PKCS1_PSS_mgf1"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1),
"RSA_padding_add_PKCS1_type_1"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2),
"RSA_padding_add_PKCS1_type_2"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_SSLV23), "RSA_padding_add_SSLv23"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_X931), "RSA_padding_add_X931"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_NONE), "RSA_padding_check_none"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP),
"RSA_padding_check_PKCS1_OAEP"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1),
"RSA_padding_check_PKCS1_OAEP_mgf1"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1),
"RSA_padding_check_PKCS1_type_1"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2),
"RSA_padding_check_PKCS1_type_2"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_SSLV23), "RSA_padding_check_SSLv23"},
{ERR_FUNC(RSA_F_RSA_PADDING_CHECK_X931), "RSA_padding_check_X931"},
{ERR_FUNC(RSA_F_RSA_PRINT), "RSA_print"},
{ERR_FUNC(RSA_F_RSA_PRINT_FP), "RSA_print_fp"},
{ERR_FUNC(RSA_F_RSA_PRIVATE_DECRYPT), "RSA_private_decrypt"},
{ERR_FUNC(RSA_F_RSA_PRIVATE_ENCRYPT), "RSA_private_encrypt"},
{ERR_FUNC(RSA_F_RSA_PRIV_DECODE), "RSA_PRIV_DECODE"},
{ERR_FUNC(RSA_F_RSA_PRIV_ENCODE), "RSA_PRIV_ENCODE"},
{ERR_FUNC(RSA_F_RSA_PSS_TO_CTX), "RSA_PSS_TO_CTX"},
{ERR_FUNC(RSA_F_RSA_PUBLIC_DECRYPT), "RSA_public_decrypt"},
{ERR_FUNC(RSA_F_RSA_PUBLIC_ENCRYPT), "RSA_public_encrypt"},
{ERR_FUNC(RSA_F_RSA_PUB_DECODE), "RSA_PUB_DECODE"},
{ERR_FUNC(RSA_F_RSA_SETUP_BLINDING), "RSA_setup_blinding"},
{ERR_FUNC(RSA_F_RSA_SIGN), "RSA_sign"},
{ERR_FUNC(RSA_F_RSA_SIGN_ASN1_OCTET_STRING),
"RSA_sign_ASN1_OCTET_STRING"},
{ERR_FUNC(RSA_F_RSA_VERIFY), "RSA_verify"},
{ERR_FUNC(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING),
"RSA_verify_ASN1_OCTET_STRING"},
{ERR_FUNC(RSA_F_RSA_VERIFY_PKCS1_PSS), "RSA_verify_PKCS1_PSS"},
{ERR_FUNC(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1), "RSA_verify_PKCS1_PSS_mgf1"},
{0, NULL}
};
static ERR_STRING_DATA RSA_str_reasons[] = {
{ERR_REASON(RSA_R_ALGORITHM_MISMATCH), "algorithm mismatch"},
{ERR_REASON(RSA_R_BAD_E_VALUE), "bad e value"},
{ERR_REASON(RSA_R_BAD_FIXED_HEADER_DECRYPT), "bad fixed header decrypt"},
{ERR_REASON(RSA_R_BAD_PAD_BYTE_COUNT), "bad pad byte count"},
{ERR_REASON(RSA_R_BAD_SIGNATURE), "bad signature"},
{ERR_REASON(RSA_R_BLOCK_TYPE_IS_NOT_01), "block type is not 01"},
{ERR_REASON(RSA_R_BLOCK_TYPE_IS_NOT_02), "block type is not 02"},
{ERR_REASON(RSA_R_DATA_GREATER_THAN_MOD_LEN),
"data greater than mod len"},
{ERR_REASON(RSA_R_DATA_TOO_LARGE), "data too large"},
{ERR_REASON(RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE),
"data too large for key size"},
{ERR_REASON(RSA_R_DATA_TOO_LARGE_FOR_MODULUS),
"data too large for modulus"},
{ERR_REASON(RSA_R_DATA_TOO_SMALL), "data too small"},
{ERR_REASON(RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE),
"data too small for key size"},
{ERR_REASON(RSA_R_DIGEST_DOES_NOT_MATCH), "digest does not match"},
{ERR_REASON(RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY),
"digest too big for rsa key"},
{ERR_REASON(RSA_R_DMP1_NOT_CONGRUENT_TO_D), "dmp1 not congruent to d"},
{ERR_REASON(RSA_R_DMQ1_NOT_CONGRUENT_TO_D), "dmq1 not congruent to d"},
{ERR_REASON(RSA_R_D_E_NOT_CONGRUENT_TO_1), "d e not congruent to 1"},
{ERR_REASON(RSA_R_FIRST_OCTET_INVALID), "first octet invalid"},
{ERR_REASON(RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE),
"illegal or unsupported padding mode"},
{ERR_REASON(RSA_R_INVALID_DIGEST), "invalid digest"},
{ERR_REASON(RSA_R_INVALID_DIGEST_LENGTH), "invalid digest length"},
{ERR_REASON(RSA_R_INVALID_HEADER), "invalid header"},
{ERR_REASON(RSA_R_INVALID_KEYBITS), "invalid keybits"},
{ERR_REASON(RSA_R_INVALID_LABEL), "invalid label"},
{ERR_REASON(RSA_R_INVALID_MESSAGE_LENGTH), "invalid message length"},
{ERR_REASON(RSA_R_INVALID_MGF1_MD), "invalid mgf1 md"},
{ERR_REASON(RSA_R_INVALID_OAEP_PARAMETERS), "invalid oaep parameters"},
{ERR_REASON(RSA_R_INVALID_PADDING), "invalid padding"},
{ERR_REASON(RSA_R_INVALID_PADDING_MODE), "invalid padding mode"},
{ERR_REASON(RSA_R_INVALID_PSS_PARAMETERS), "invalid pss parameters"},
{ERR_REASON(RSA_R_INVALID_PSS_SALTLEN), "invalid pss saltlen"},
{ERR_REASON(RSA_R_INVALID_SALT_LENGTH), "invalid salt length"},
{ERR_REASON(RSA_R_INVALID_TRAILER), "invalid trailer"},
{ERR_REASON(RSA_R_INVALID_X931_DIGEST), "invalid x931 digest"},
{ERR_REASON(RSA_R_IQMP_NOT_INVERSE_OF_Q), "iqmp not inverse of q"},
{ERR_REASON(RSA_R_KEY_SIZE_TOO_SMALL), "key size too small"},
{ERR_REASON(RSA_R_LAST_OCTET_INVALID), "last octet invalid"},
{ERR_REASON(RSA_R_MODULUS_TOO_LARGE), "modulus too large"},
{ERR_REASON(RSA_R_NON_FIPS_RSA_METHOD), "non fips rsa method"},
{ERR_REASON(RSA_R_NO_PUBLIC_EXPONENT), "no public exponent"},
{ERR_REASON(RSA_R_NULL_BEFORE_BLOCK_MISSING),
"null before block missing"},
{ERR_REASON(RSA_R_N_DOES_NOT_EQUAL_P_Q), "n does not equal p q"},
{ERR_REASON(RSA_R_OAEP_DECODING_ERROR), "oaep decoding error"},
{ERR_REASON(RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE),
"operation not allowed in fips mode"},
{ERR_REASON(RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE),
"operation not supported for this keytype"},
{ERR_REASON(RSA_R_PADDING_CHECK_FAILED), "padding check failed"},
{ERR_REASON(RSA_R_PKCS_DECODING_ERROR), "pkcs decoding error"},
{ERR_REASON(RSA_R_P_NOT_PRIME), "p not prime"},
{ERR_REASON(RSA_R_Q_NOT_PRIME), "q not prime"},
{ERR_REASON(RSA_R_RSA_OPERATIONS_NOT_SUPPORTED),
"rsa operations not supported"},
{ERR_REASON(RSA_R_SLEN_CHECK_FAILED), "salt length check failed"},
{ERR_REASON(RSA_R_SLEN_RECOVERY_FAILED), "salt length recovery failed"},
{ERR_REASON(RSA_R_SSLV3_ROLLBACK_ATTACK), "sslv3 rollback attack"},
{ERR_REASON(RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD),
"the asn1 object identifier is not known for this md"},
{ERR_REASON(RSA_R_UNKNOWN_ALGORITHM_TYPE), "unknown algorithm type"},
{ERR_REASON(RSA_R_UNKNOWN_DIGEST), "unknown digest"},
{ERR_REASON(RSA_R_UNKNOWN_MASK_DIGEST), "unknown mask digest"},
{ERR_REASON(RSA_R_UNKNOWN_PADDING_TYPE), "unknown padding type"},
{ERR_REASON(RSA_R_UNKNOWN_PSS_DIGEST), "unknown pss digest"},
{ERR_REASON(RSA_R_UNSUPPORTED_ENCRYPTION_TYPE),
"unsupported encryption type"},
{ERR_REASON(RSA_R_UNSUPPORTED_LABEL_SOURCE), "unsupported label source"},
{ERR_REASON(RSA_R_UNSUPPORTED_MASK_ALGORITHM),
"unsupported mask algorithm"},
{ERR_REASON(RSA_R_UNSUPPORTED_MASK_PARAMETER),
"unsupported mask parameter"},
{ERR_REASON(RSA_R_UNSUPPORTED_SIGNATURE_TYPE),
"unsupported signature type"},
{ERR_REASON(RSA_R_VALUE_MISSING), "value missing"},
{ERR_REASON(RSA_R_WRONG_SIGNATURE_LENGTH), "wrong signature length"},
{0, NULL}
};
#endif
void ERR_load_RSA_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(RSA_str_functs[0].error) == NULL) {
ERR_load_strings(0, RSA_str_functs);
ERR_load_strings(0, RSA_str_reasons);
}
#endif
}

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/* crypto/rsa/rsa_gen.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/*
* NB: these functions have been "upgraded", the deprecated versions (which
* are compatibility wrappers using these functions) are in rsa_depr.c. -
* Geoff
*/
#include <stdio.h>
#include <time.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#ifdef OPENSSL_FIPS
# include <openssl/fips.h>
extern int FIPS_rsa_x931_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
BN_GENCB *cb);
#endif
static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value,
BN_GENCB *cb);
/*
* NB: this wrapper would normally be placed in rsa_lib.c and the static
* implementation would probably be in rsa_eay.c. Nonetheless, is kept here
* so that we don't introduce a new linker dependency. Eg. any application
* that wasn't previously linking object code related to key-generation won't
* have to now just because key-generation is part of RSA_METHOD.
*/
int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb)
{
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_GENERATE_KEY_EX, RSA_R_NON_FIPS_RSA_METHOD);
return 0;
}
#endif
if (rsa->meth->rsa_keygen)
return rsa->meth->rsa_keygen(rsa, bits, e_value, cb);
#ifdef OPENSSL_FIPS
if (FIPS_mode())
return FIPS_rsa_x931_generate_key_ex(rsa, bits, e_value, cb);
#endif
return rsa_builtin_keygen(rsa, bits, e_value, cb);
}
static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value,
BN_GENCB *cb)
{
BIGNUM *r0 = NULL, *r1 = NULL, *r2 = NULL, *r3 = NULL, *tmp;
BIGNUM local_r0, local_d, local_p;
BIGNUM *pr0, *d, *p;
int bitsp, bitsq, ok = -1, n = 0;
BN_CTX *ctx = NULL;
ctx = BN_CTX_new();
if (ctx == NULL)
goto err;
BN_CTX_start(ctx);
r0 = BN_CTX_get(ctx);
r1 = BN_CTX_get(ctx);
r2 = BN_CTX_get(ctx);
r3 = BN_CTX_get(ctx);
if (r3 == NULL)
goto err;
bitsp = (bits + 1) / 2;
bitsq = bits - bitsp;
/* We need the RSA components non-NULL */
if (!rsa->n && ((rsa->n = BN_new()) == NULL))
goto err;
if (!rsa->d && ((rsa->d = BN_new()) == NULL))
goto err;
if (!rsa->e && ((rsa->e = BN_new()) == NULL))
goto err;
if (!rsa->p && ((rsa->p = BN_new()) == NULL))
goto err;
if (!rsa->q && ((rsa->q = BN_new()) == NULL))
goto err;
if (!rsa->dmp1 && ((rsa->dmp1 = BN_new()) == NULL))
goto err;
if (!rsa->dmq1 && ((rsa->dmq1 = BN_new()) == NULL))
goto err;
if (!rsa->iqmp && ((rsa->iqmp = BN_new()) == NULL))
goto err;
BN_copy(rsa->e, e_value);
/* generate p and q */
for (;;) {
if (!BN_generate_prime_ex(rsa->p, bitsp, 0, NULL, NULL, cb))
goto err;
if (!BN_sub(r2, rsa->p, BN_value_one()))
goto err;
if (!BN_gcd(r1, r2, rsa->e, ctx))
goto err;
if (BN_is_one(r1))
break;
if (!BN_GENCB_call(cb, 2, n++))
goto err;
}
if (!BN_GENCB_call(cb, 3, 0))
goto err;
for (;;) {
/*
* When generating ridiculously small keys, we can get stuck
* continually regenerating the same prime values. Check for this and
* bail if it happens 3 times.
*/
unsigned int degenerate = 0;
do {
if (!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb))
goto err;
} while ((BN_cmp(rsa->p, rsa->q) == 0) && (++degenerate < 3));
if (degenerate == 3) {
ok = 0; /* we set our own err */
RSAerr(RSA_F_RSA_BUILTIN_KEYGEN, RSA_R_KEY_SIZE_TOO_SMALL);
goto err;
}
if (!BN_sub(r2, rsa->q, BN_value_one()))
goto err;
if (!BN_gcd(r1, r2, rsa->e, ctx))
goto err;
if (BN_is_one(r1))
break;
if (!BN_GENCB_call(cb, 2, n++))
goto err;
}
if (!BN_GENCB_call(cb, 3, 1))
goto err;
if (BN_cmp(rsa->p, rsa->q) < 0) {
tmp = rsa->p;
rsa->p = rsa->q;
rsa->q = tmp;
}
/* calculate n */
if (!BN_mul(rsa->n, rsa->p, rsa->q, ctx))
goto err;
/* calculate d */
if (!BN_sub(r1, rsa->p, BN_value_one()))
goto err; /* p-1 */
if (!BN_sub(r2, rsa->q, BN_value_one()))
goto err; /* q-1 */
if (!BN_mul(r0, r1, r2, ctx))
goto err; /* (p-1)(q-1) */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
pr0 = &local_r0;
BN_with_flags(pr0, r0, BN_FLG_CONSTTIME);
} else
pr0 = r0;
if (!BN_mod_inverse(rsa->d, rsa->e, pr0, ctx))
goto err; /* d */
/* set up d for correct BN_FLG_CONSTTIME flag */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
d = &local_d;
BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
} else
d = rsa->d;
/* calculate d mod (p-1) */
if (!BN_mod(rsa->dmp1, d, r1, ctx))
goto err;
/* calculate d mod (q-1) */
if (!BN_mod(rsa->dmq1, d, r2, ctx))
goto err;
/* calculate inverse of q mod p */
if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
p = &local_p;
BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME);
} else
p = rsa->p;
if (!BN_mod_inverse(rsa->iqmp, rsa->q, p, ctx))
goto err;
ok = 1;
err:
if (ok == -1) {
RSAerr(RSA_F_RSA_BUILTIN_KEYGEN, ERR_LIB_BN);
ok = 0;
}
if (ctx != NULL) {
BN_CTX_end(ctx);
BN_CTX_free(ctx);
}
return ok;
}

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/* crypto/rsa/rsa_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <openssl/crypto.h>
#include "cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
#ifdef OPENSSL_FIPS
# include <openssl/fips.h>
#endif
const char RSA_version[] = "RSA" OPENSSL_VERSION_PTEXT;
static const RSA_METHOD *default_RSA_meth = NULL;
RSA *RSA_new(void)
{
RSA *r = RSA_new_method(NULL);
return r;
}
void RSA_set_default_method(const RSA_METHOD *meth)
{
default_RSA_meth = meth;
}
const RSA_METHOD *RSA_get_default_method(void)
{
if (default_RSA_meth == NULL) {
#ifdef OPENSSL_FIPS
if (FIPS_mode())
return FIPS_rsa_pkcs1_ssleay();
else
return RSA_PKCS1_SSLeay();
#else
# ifdef RSA_NULL
default_RSA_meth = RSA_null_method();
# else
default_RSA_meth = RSA_PKCS1_SSLeay();
# endif
#endif
}
return default_RSA_meth;
}
const RSA_METHOD *RSA_get_method(const RSA *rsa)
{
return rsa->meth;
}
int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
{
/*
* NB: The caller is specifically setting a method, so it's not up to us
* to deal with which ENGINE it comes from.
*/
const RSA_METHOD *mtmp;
mtmp = rsa->meth;
if (mtmp->finish)
mtmp->finish(rsa);
#ifndef OPENSSL_NO_ENGINE
if (rsa->engine) {
ENGINE_finish(rsa->engine);
rsa->engine = NULL;
}
#endif
rsa->meth = meth;
if (meth->init)
meth->init(rsa);
return 1;
}
RSA *RSA_new_method(ENGINE *engine)
{
RSA *ret;
ret = (RSA *)OPENSSL_malloc(sizeof(RSA));
if (ret == NULL) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return NULL;
}
ret->meth = RSA_get_default_method();
#ifndef OPENSSL_NO_ENGINE
if (engine) {
if (!ENGINE_init(engine)) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
OPENSSL_free(ret);
return NULL;
}
ret->engine = engine;
} else
ret->engine = ENGINE_get_default_RSA();
if (ret->engine) {
ret->meth = ENGINE_get_RSA(ret->engine);
if (!ret->meth) {
RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
ENGINE_finish(ret->engine);
OPENSSL_free(ret);
return NULL;
}
}
#endif
ret->pad = 0;
ret->version = 0;
ret->n = NULL;
ret->e = NULL;
ret->d = NULL;
ret->p = NULL;
ret->q = NULL;
ret->dmp1 = NULL;
ret->dmq1 = NULL;
ret->iqmp = NULL;
ret->references = 1;
ret->_method_mod_n = NULL;
ret->_method_mod_p = NULL;
ret->_method_mod_q = NULL;
ret->blinding = NULL;
ret->mt_blinding = NULL;
ret->bignum_data = NULL;
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
#ifndef OPENSSL_NO_ENGINE
if (ret->engine)
ENGINE_finish(ret->engine);
#endif
OPENSSL_free(ret);
return (NULL);
}
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
#ifndef OPENSSL_NO_ENGINE
if (ret->engine)
ENGINE_finish(ret->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
OPENSSL_free(ret);
ret = NULL;
}
return (ret);
}
void RSA_free(RSA *r)
{
int i;
if (r == NULL)
return;
i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_RSA);
#ifdef REF_PRINT
REF_PRINT("RSA", r);
#endif
if (i > 0)
return;
#ifdef REF_CHECK
if (i < 0) {
fprintf(stderr, "RSA_free, bad reference count\n");
abort();
}
#endif
if (r->meth->finish)
r->meth->finish(r);
#ifndef OPENSSL_NO_ENGINE
if (r->engine)
ENGINE_finish(r->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
if (r->n != NULL)
BN_clear_free(r->n);
if (r->e != NULL)
BN_clear_free(r->e);
if (r->d != NULL)
BN_clear_free(r->d);
if (r->p != NULL)
BN_clear_free(r->p);
if (r->q != NULL)
BN_clear_free(r->q);
if (r->dmp1 != NULL)
BN_clear_free(r->dmp1);
if (r->dmq1 != NULL)
BN_clear_free(r->dmq1);
if (r->iqmp != NULL)
BN_clear_free(r->iqmp);
if (r->blinding != NULL)
BN_BLINDING_free(r->blinding);
if (r->mt_blinding != NULL)
BN_BLINDING_free(r->mt_blinding);
if (r->bignum_data != NULL)
OPENSSL_free_locked(r->bignum_data);
OPENSSL_free(r);
}
int RSA_up_ref(RSA *r)
{
int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
#ifdef REF_PRINT
REF_PRINT("RSA", r);
#endif
#ifdef REF_CHECK
if (i < 2) {
fprintf(stderr, "RSA_up_ref, bad reference count\n");
abort();
}
#endif
return ((i > 1) ? 1 : 0);
}
int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
{
return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
new_func, dup_func, free_func);
}
int RSA_set_ex_data(RSA *r, int idx, void *arg)
{
return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
}
void *RSA_get_ex_data(const RSA *r, int idx)
{
return (CRYPTO_get_ex_data(&r->ex_data, idx));
}
int RSA_memory_lock(RSA *r)
{
int i, j, k, off;
char *p;
BIGNUM *bn, **t[6], *b;
BN_ULONG *ul;
if (r->d == NULL)
return (1);
t[0] = &r->d;
t[1] = &r->p;
t[2] = &r->q;
t[3] = &r->dmp1;
t[4] = &r->dmq1;
t[5] = &r->iqmp;
k = sizeof(BIGNUM) * 6;
off = k / sizeof(BN_ULONG) + 1;
j = 1;
for (i = 0; i < 6; i++)
j += (*t[i])->top;
if ((p = OPENSSL_malloc_locked((off + j) * sizeof(BN_ULONG))) == NULL) {
RSAerr(RSA_F_RSA_MEMORY_LOCK, ERR_R_MALLOC_FAILURE);
return (0);
}
bn = (BIGNUM *)p;
ul = (BN_ULONG *)&(p[off]);
for (i = 0; i < 6; i++) {
b = *(t[i]);
*(t[i]) = &(bn[i]);
memcpy((char *)&(bn[i]), (char *)b, sizeof(BIGNUM));
bn[i].flags = BN_FLG_STATIC_DATA;
bn[i].d = ul;
memcpy((char *)ul, b->d, sizeof(BN_ULONG) * b->top);
ul += b->top;
BN_clear_free(b);
}
/* I should fix this so it can still be done */
r->flags &= ~(RSA_FLAG_CACHE_PRIVATE | RSA_FLAG_CACHE_PUBLIC);
r->bignum_data = p;
return (1);
}

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extern int int_rsa_verify(int dtype, const unsigned char *m,
unsigned int m_len, unsigned char *rm,
size_t *prm_len, const unsigned char *sigbuf,
size_t siglen, RSA *rsa);

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/* crypto/rsa/rsa_none.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
int RSA_padding_add_none(unsigned char *to, int tlen,
const unsigned char *from, int flen)
{
if (flen > tlen) {
RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return (0);
}
if (flen < tlen) {
RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE);
return (0);
}
memcpy(to, from, (unsigned int)flen);
return (1);
}
int RSA_padding_check_none(unsigned char *to, int tlen,
const unsigned char *from, int flen, int num)
{
if (flen > tlen) {
RSAerr(RSA_F_RSA_PADDING_CHECK_NONE, RSA_R_DATA_TOO_LARGE);
return (-1);
}
memset(to, 0, tlen - flen);
memcpy(to + tlen - flen, from, flen);
return (tlen);
}

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/* rsa_null.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
/*
* This is a dummy RSA implementation that just returns errors when called.
* It is designed to allow some RSA functions to work while stopping those
* covered by the RSA patent. That is RSA, encryption, decryption, signing
* and verify is not allowed but RSA key generation, key checking and other
* operations (like storing RSA keys) are permitted.
*/
static int RSA_null_public_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_null_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_null_public_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int RSA_null_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
#if 0 /* not currently used */
static int RSA_null_mod_exp(const BIGNUM *r0, const BIGNUM *i, RSA *rsa);
#endif
static int RSA_null_init(RSA *rsa);
static int RSA_null_finish(RSA *rsa);
static RSA_METHOD rsa_null_meth = {
"Null RSA",
RSA_null_public_encrypt,
RSA_null_public_decrypt,
RSA_null_private_encrypt,
RSA_null_private_decrypt,
NULL,
NULL,
RSA_null_init,
RSA_null_finish,
0,
NULL,
NULL,
NULL,
NULL
};
const RSA_METHOD *RSA_null_method(void)
{
return (&rsa_null_meth);
}
static int RSA_null_public_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
RSAerr(RSA_F_RSA_NULL_PUBLIC_ENCRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
return -1;
}
static int RSA_null_private_encrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
RSAerr(RSA_F_RSA_NULL_PRIVATE_ENCRYPT,
RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
return -1;
}
static int RSA_null_private_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
RSAerr(RSA_F_RSA_NULL_PRIVATE_DECRYPT,
RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
return -1;
}
static int RSA_null_public_decrypt(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
RSAerr(RSA_F_RSA_NULL_PUBLIC_DECRYPT, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
return -1;
}
#if 0 /* not currently used */
static int RSA_null_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa)
{
... err(RSA_F_RSA_NULL_MOD_EXP, RSA_R_RSA_OPERATIONS_NOT_SUPPORTED);
return -1;
}
#endif
static int RSA_null_init(RSA *rsa)
{
return (1);
}
static int RSA_null_finish(RSA *rsa)
{
return (1);
}

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openssl-1.0.2f/crypto/rsa/rsa_oaep.c Normal file
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/* crypto/rsa/rsa_oaep.c */
/*
* Written by Ulf Moeller. This software is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
*/
/* EME-OAEP as defined in RFC 2437 (PKCS #1 v2.0) */
/*
* See Victor Shoup, "OAEP reconsidered," Nov. 2000, <URL:
* http://www.shoup.net/papers/oaep.ps.Z> for problems with the security
* proof for the original OAEP scheme, which EME-OAEP is based on. A new
* proof can be found in E. Fujisaki, T. Okamoto, D. Pointcheval, J. Stern,
* "RSA-OEAP is Still Alive!", Dec. 2000, <URL:
* http://eprint.iacr.org/2000/061/>. The new proof has stronger requirements
* for the underlying permutation: "partial-one-wayness" instead of
* one-wayness. For the RSA function, this is an equivalent notion.
*/
#include "constant_time_locl.h"
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
# include <stdio.h>
# include "cryptlib.h"
# include <openssl/bn.h>
# include <openssl/rsa.h>
# include <openssl/evp.h>
# include <openssl/rand.h>
# include <openssl/sha.h>
int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
const unsigned char *from, int flen,
const unsigned char *param, int plen)
{
return RSA_padding_add_PKCS1_OAEP_mgf1(to, tlen, from, flen,
param, plen, NULL, NULL);
}
int RSA_padding_add_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
const unsigned char *from, int flen,
const unsigned char *param, int plen,
const EVP_MD *md, const EVP_MD *mgf1md)
{
int i, emlen = tlen - 1;
unsigned char *db, *seed;
unsigned char *dbmask, seedmask[EVP_MAX_MD_SIZE];
int mdlen;
if (md == NULL)
md = EVP_sha1();
if (mgf1md == NULL)
mgf1md = md;
mdlen = EVP_MD_size(md);
if (flen > emlen - 2 * mdlen - 1) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1,
RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return 0;
}
if (emlen < 2 * mdlen + 1) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1,
RSA_R_KEY_SIZE_TOO_SMALL);
return 0;
}
to[0] = 0;
seed = to + 1;
db = to + mdlen + 1;
if (!EVP_Digest((void *)param, plen, db, NULL, md, NULL))
return 0;
memset(db + mdlen, 0, emlen - flen - 2 * mdlen - 1);
db[emlen - flen - mdlen - 1] = 0x01;
memcpy(db + emlen - flen - mdlen, from, (unsigned int)flen);
if (RAND_bytes(seed, mdlen) <= 0)
return 0;
# ifdef PKCS_TESTVECT
memcpy(seed,
"\xaa\xfd\x12\xf6\x59\xca\xe6\x34\x89\xb4\x79\xe5\x07\x6d\xde\xc2\xf0\x6c\xb5\x8f",
20);
# endif
dbmask = OPENSSL_malloc(emlen - mdlen);
if (dbmask == NULL) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1, ERR_R_MALLOC_FAILURE);
return 0;
}
if (PKCS1_MGF1(dbmask, emlen - mdlen, seed, mdlen, mgf1md) < 0)
return 0;
for (i = 0; i < emlen - mdlen; i++)
db[i] ^= dbmask[i];
if (PKCS1_MGF1(seedmask, mdlen, db, emlen - mdlen, mgf1md) < 0)
return 0;
for (i = 0; i < mdlen; i++)
seed[i] ^= seedmask[i];
OPENSSL_free(dbmask);
return 1;
}
int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
const unsigned char *from, int flen, int num,
const unsigned char *param, int plen)
{
return RSA_padding_check_PKCS1_OAEP_mgf1(to, tlen, from, flen, num,
param, plen, NULL, NULL);
}
int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
const unsigned char *from, int flen,
int num, const unsigned char *param,
int plen, const EVP_MD *md,
const EVP_MD *mgf1md)
{
int i, dblen, mlen = -1, one_index = 0, msg_index;
unsigned int good, found_one_byte;
const unsigned char *maskedseed, *maskeddb;
/*
* |em| is the encoded message, zero-padded to exactly |num| bytes: em =
* Y || maskedSeed || maskedDB
*/
unsigned char *db = NULL, *em = NULL, seed[EVP_MAX_MD_SIZE],
phash[EVP_MAX_MD_SIZE];
int mdlen;
if (md == NULL)
md = EVP_sha1();
if (mgf1md == NULL)
mgf1md = md;
mdlen = EVP_MD_size(md);
if (tlen <= 0 || flen <= 0)
return -1;
/*
* |num| is the length of the modulus; |flen| is the length of the
* encoded message. Therefore, for any |from| that was obtained by
* decrypting a ciphertext, we must have |flen| <= |num|. Similarly,
* num < 2 * mdlen + 2 must hold for the modulus irrespective of
* the ciphertext, see PKCS #1 v2.2, section 7.1.2.
* This does not leak any side-channel information.
*/
if (num < flen || num < 2 * mdlen + 2)
goto decoding_err;
dblen = num - mdlen - 1;
db = OPENSSL_malloc(dblen);
em = OPENSSL_malloc(num);
if (db == NULL || em == NULL) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1, ERR_R_MALLOC_FAILURE);
goto cleanup;
}
/*
* Always do this zero-padding copy (even when num == flen) to avoid
* leaking that information. The copy still leaks some side-channel
* information, but it's impossible to have a fixed memory access
* pattern since we can't read out of the bounds of |from|.
*
* TODO(emilia): Consider porting BN_bn2bin_padded from BoringSSL.
*/
memset(em, 0, num);
memcpy(em + num - flen, from, flen);
/*
* The first byte must be zero, however we must not leak if this is
* true. See James H. Manger, "A Chosen Ciphertext Attack on RSA
* Optimal Asymmetric Encryption Padding (OAEP) [...]", CRYPTO 2001).
*/
good = constant_time_is_zero(em[0]);
maskedseed = em + 1;
maskeddb = em + 1 + mdlen;
if (PKCS1_MGF1(seed, mdlen, maskeddb, dblen, mgf1md))
goto cleanup;
for (i = 0; i < mdlen; i++)
seed[i] ^= maskedseed[i];
if (PKCS1_MGF1(db, dblen, seed, mdlen, mgf1md))
goto cleanup;
for (i = 0; i < dblen; i++)
db[i] ^= maskeddb[i];
if (!EVP_Digest((void *)param, plen, phash, NULL, md, NULL))
goto cleanup;
good &= constant_time_is_zero(CRYPTO_memcmp(db, phash, mdlen));
found_one_byte = 0;
for (i = mdlen; i < dblen; i++) {
/*
* Padding consists of a number of 0-bytes, followed by a 1.
*/
unsigned int equals1 = constant_time_eq(db[i], 1);
unsigned int equals0 = constant_time_is_zero(db[i]);
one_index = constant_time_select_int(~found_one_byte & equals1,
i, one_index);
found_one_byte |= equals1;
good &= (found_one_byte | equals0);
}
good &= found_one_byte;
/*
* At this point |good| is zero unless the plaintext was valid,
* so plaintext-awareness ensures timing side-channels are no longer a
* concern.
*/
if (!good)
goto decoding_err;
msg_index = one_index + 1;
mlen = dblen - msg_index;
if (tlen < mlen) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1, RSA_R_DATA_TOO_LARGE);
mlen = -1;
} else {
memcpy(to, db + msg_index, mlen);
goto cleanup;
}
decoding_err:
/*
* To avoid chosen ciphertext attacks, the error message should not
* reveal which kind of decoding error happened.
*/
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1,
RSA_R_OAEP_DECODING_ERROR);
cleanup:
if (db != NULL)
OPENSSL_free(db);
if (em != NULL)
OPENSSL_free(em);
return mlen;
}
int PKCS1_MGF1(unsigned char *mask, long len,
const unsigned char *seed, long seedlen, const EVP_MD *dgst)
{
long i, outlen = 0;
unsigned char cnt[4];
EVP_MD_CTX c;
unsigned char md[EVP_MAX_MD_SIZE];
int mdlen;
int rv = -1;
EVP_MD_CTX_init(&c);
mdlen = EVP_MD_size(dgst);
if (mdlen < 0)
goto err;
for (i = 0; outlen < len; i++) {
cnt[0] = (unsigned char)((i >> 24) & 255);
cnt[1] = (unsigned char)((i >> 16) & 255);
cnt[2] = (unsigned char)((i >> 8)) & 255;
cnt[3] = (unsigned char)(i & 255);
if (!EVP_DigestInit_ex(&c, dgst, NULL)
|| !EVP_DigestUpdate(&c, seed, seedlen)
|| !EVP_DigestUpdate(&c, cnt, 4))
goto err;
if (outlen + mdlen <= len) {
if (!EVP_DigestFinal_ex(&c, mask + outlen, NULL))
goto err;
outlen += mdlen;
} else {
if (!EVP_DigestFinal_ex(&c, md, NULL))
goto err;
memcpy(mask + outlen, md, len - outlen);
outlen = len;
}
}
rv = 0;
err:
EVP_MD_CTX_cleanup(&c);
return rv;
}
#endif

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/* crypto/rsa/rsa_pk1.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include "constant_time_locl.h"
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
const unsigned char *from, int flen)
{
int j;
unsigned char *p;
if (flen > (tlen - RSA_PKCS1_PADDING_SIZE)) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1,
RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return (0);
}
p = (unsigned char *)to;
*(p++) = 0;
*(p++) = 1; /* Private Key BT (Block Type) */
/* pad out with 0xff data */
j = tlen - 3 - flen;
memset(p, 0xff, j);
p += j;
*(p++) = '\0';
memcpy(p, from, (unsigned int)flen);
return (1);
}
int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
const unsigned char *from, int flen,
int num)
{
int i, j;
const unsigned char *p;
p = from;
if ((num != (flen + 1)) || (*(p++) != 01)) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,
RSA_R_BLOCK_TYPE_IS_NOT_01);
return (-1);
}
/* scan over padding data */
j = flen - 1; /* one for type. */
for (i = 0; i < j; i++) {
if (*p != 0xff) { /* should decrypt to 0xff */
if (*p == 0) {
p++;
break;
} else {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,
RSA_R_BAD_FIXED_HEADER_DECRYPT);
return (-1);
}
}
p++;
}
if (i == j) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,
RSA_R_NULL_BEFORE_BLOCK_MISSING);
return (-1);
}
if (i < 8) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,
RSA_R_BAD_PAD_BYTE_COUNT);
return (-1);
}
i++; /* Skip over the '\0' */
j -= i;
if (j > tlen) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1, RSA_R_DATA_TOO_LARGE);
return (-1);
}
memcpy(to, p, (unsigned int)j);
return (j);
}
int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
const unsigned char *from, int flen)
{
int i, j;
unsigned char *p;
if (flen > (tlen - 11)) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2,
RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return (0);
}
p = (unsigned char *)to;
*(p++) = 0;
*(p++) = 2; /* Public Key BT (Block Type) */
/* pad out with non-zero random data */
j = tlen - 3 - flen;
if (RAND_bytes(p, j) <= 0)
return (0);
for (i = 0; i < j; i++) {
if (*p == '\0')
do {
if (RAND_bytes(p, 1) <= 0)
return (0);
} while (*p == '\0');
p++;
}
*(p++) = '\0';
memcpy(p, from, (unsigned int)flen);
return (1);
}
int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
const unsigned char *from, int flen,
int num)
{
int i;
/* |em| is the encoded message, zero-padded to exactly |num| bytes */
unsigned char *em = NULL;
unsigned int good, found_zero_byte;
int zero_index = 0, msg_index, mlen = -1;
if (tlen < 0 || flen < 0)
return -1;
/*
* PKCS#1 v1.5 decryption. See "PKCS #1 v2.2: RSA Cryptography Standard",
* section 7.2.2.
*/
if (flen > num)
goto err;
if (num < 11)
goto err;
em = OPENSSL_malloc(num);
if (em == NULL) {
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2, ERR_R_MALLOC_FAILURE);
return -1;
}
memset(em, 0, num);
/*
* Always do this zero-padding copy (even when num == flen) to avoid
* leaking that information. The copy still leaks some side-channel
* information, but it's impossible to have a fixed memory access
* pattern since we can't read out of the bounds of |from|.
*
* TODO(emilia): Consider porting BN_bn2bin_padded from BoringSSL.
*/
memcpy(em + num - flen, from, flen);
good = constant_time_is_zero(em[0]);
good &= constant_time_eq(em[1], 2);
found_zero_byte = 0;
for (i = 2; i < num; i++) {
unsigned int equals0 = constant_time_is_zero(em[i]);
zero_index =
constant_time_select_int(~found_zero_byte & equals0, i,
zero_index);
found_zero_byte |= equals0;
}
/*
* PS must be at least 8 bytes long, and it starts two bytes into |em|.
* If we never found a 0-byte, then |zero_index| is 0 and the check
* also fails.
*/
good &= constant_time_ge((unsigned int)(zero_index), 2 + 8);
/*
* Skip the zero byte. This is incorrect if we never found a zero-byte
* but in this case we also do not copy the message out.
*/
msg_index = zero_index + 1;
mlen = num - msg_index;
/*
* For good measure, do this check in constant time as well; it could
* leak something if |tlen| was assuming valid padding.
*/
good &= constant_time_ge((unsigned int)(tlen), (unsigned int)(mlen));
/*
* We can't continue in constant-time because we need to copy the result
* and we cannot fake its length. This unavoidably leaks timing
* information at the API boundary.
* TODO(emilia): this could be addressed at the call site,
* see BoringSSL commit 0aa0767340baf925bda4804882aab0cb974b2d26.
*/
if (!good) {
mlen = -1;
goto err;
}
memcpy(to, em + msg_index, mlen);
err:
if (em != NULL)
OPENSSL_free(em);
if (mlen == -1)
RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,
RSA_R_PKCS_DECODING_ERROR);
return mlen;
}

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@@ -0,0 +1,784 @@
/* crypto/rsa/rsa_pmeth.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/rsa.h>
#include <openssl/bn.h>
#include <openssl/evp.h>
#include <openssl/x509v3.h>
#ifndef OPENSSL_NO_CMS
# include <openssl/cms.h>
#endif
#ifdef OPENSSL_FIPS
# include <openssl/fips.h>
#endif
#include "evp_locl.h"
#include "rsa_locl.h"
/* RSA pkey context structure */
typedef struct {
/* Key gen parameters */
int nbits;
BIGNUM *pub_exp;
/* Keygen callback info */
int gentmp[2];
/* RSA padding mode */
int pad_mode;
/* message digest */
const EVP_MD *md;
/* message digest for MGF1 */
const EVP_MD *mgf1md;
/* PSS salt length */
int saltlen;
/* Temp buffer */
unsigned char *tbuf;
/* OAEP label */
unsigned char *oaep_label;
size_t oaep_labellen;
} RSA_PKEY_CTX;
static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
{
RSA_PKEY_CTX *rctx;
rctx = OPENSSL_malloc(sizeof(RSA_PKEY_CTX));
if (!rctx)
return 0;
rctx->nbits = 1024;
rctx->pub_exp = NULL;
rctx->pad_mode = RSA_PKCS1_PADDING;
rctx->md = NULL;
rctx->mgf1md = NULL;
rctx->tbuf = NULL;
rctx->saltlen = -2;
rctx->oaep_label = NULL;
rctx->oaep_labellen = 0;
ctx->data = rctx;
ctx->keygen_info = rctx->gentmp;
ctx->keygen_info_count = 2;
return 1;
}
static int pkey_rsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
{
RSA_PKEY_CTX *dctx, *sctx;
if (!pkey_rsa_init(dst))
return 0;
sctx = src->data;
dctx = dst->data;
dctx->nbits = sctx->nbits;
if (sctx->pub_exp) {
dctx->pub_exp = BN_dup(sctx->pub_exp);
if (!dctx->pub_exp)
return 0;
}
dctx->pad_mode = sctx->pad_mode;
dctx->md = sctx->md;
dctx->mgf1md = sctx->mgf1md;
if (sctx->oaep_label) {
if (dctx->oaep_label)
OPENSSL_free(dctx->oaep_label);
dctx->oaep_label = BUF_memdup(sctx->oaep_label, sctx->oaep_labellen);
if (!dctx->oaep_label)
return 0;
dctx->oaep_labellen = sctx->oaep_labellen;
}
return 1;
}
static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk)
{
if (ctx->tbuf)
return 1;
ctx->tbuf = OPENSSL_malloc(EVP_PKEY_size(pk->pkey));
if (!ctx->tbuf)
return 0;
return 1;
}
static void pkey_rsa_cleanup(EVP_PKEY_CTX *ctx)
{
RSA_PKEY_CTX *rctx = ctx->data;
if (rctx) {
if (rctx->pub_exp)
BN_free(rctx->pub_exp);
if (rctx->tbuf)
OPENSSL_free(rctx->tbuf);
if (rctx->oaep_label)
OPENSSL_free(rctx->oaep_label);
OPENSSL_free(rctx);
}
}
#ifdef OPENSSL_FIPS
/*
* FIP checker. Return value indicates status of context parameters: 1 :
* redirect to FIPS. 0 : don't redirect to FIPS. -1 : illegal operation in
* FIPS mode.
*/
static int pkey_fips_check_ctx(EVP_PKEY_CTX *ctx)
{
RSA_PKEY_CTX *rctx = ctx->data;
RSA *rsa = ctx->pkey->pkey.rsa;
int rv = -1;
if (!FIPS_mode())
return 0;
if (rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)
rv = 0;
if (!(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) && rv)
return -1;
if (rctx->md) {
const EVP_MD *fmd;
fmd = FIPS_get_digestbynid(EVP_MD_type(rctx->md));
if (!fmd || !(fmd->flags & EVP_MD_FLAG_FIPS))
return rv;
}
if (rctx->mgf1md && !(rctx->mgf1md->flags & EVP_MD_FLAG_FIPS)) {
const EVP_MD *fmd;
fmd = FIPS_get_digestbynid(EVP_MD_type(rctx->mgf1md));
if (!fmd || !(fmd->flags & EVP_MD_FLAG_FIPS))
return rv;
}
return 1;
}
#endif
static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
size_t *siglen, const unsigned char *tbs,
size_t tbslen)
{
int ret;
RSA_PKEY_CTX *rctx = ctx->data;
RSA *rsa = ctx->pkey->pkey.rsa;
#ifdef OPENSSL_FIPS
ret = pkey_fips_check_ctx(ctx);
if (ret < 0) {
RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
return -1;
}
#endif
if (rctx->md) {
if (tbslen != (size_t)EVP_MD_size(rctx->md)) {
RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_INVALID_DIGEST_LENGTH);
return -1;
}
#ifdef OPENSSL_FIPS
if (ret > 0) {
unsigned int slen;
ret = FIPS_rsa_sign_digest(rsa, tbs, tbslen, rctx->md,
rctx->pad_mode,
rctx->saltlen,
rctx->mgf1md, sig, &slen);
if (ret > 0)
*siglen = slen;
else
*siglen = 0;
return ret;
}
#endif
if (EVP_MD_type(rctx->md) == NID_mdc2) {
unsigned int sltmp;
if (rctx->pad_mode != RSA_PKCS1_PADDING)
return -1;
ret = RSA_sign_ASN1_OCTET_STRING(NID_mdc2,
tbs, tbslen, sig, &sltmp, rsa);
if (ret <= 0)
return ret;
ret = sltmp;
} else if (rctx->pad_mode == RSA_X931_PADDING) {
if ((size_t)EVP_PKEY_size(ctx->pkey) < tbslen + 1) {
RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_KEY_SIZE_TOO_SMALL);
return -1;
}
if (!setup_tbuf(rctx, ctx)) {
RSAerr(RSA_F_PKEY_RSA_SIGN, ERR_R_MALLOC_FAILURE);
return -1;
}
memcpy(rctx->tbuf, tbs, tbslen);
rctx->tbuf[tbslen] = RSA_X931_hash_id(EVP_MD_type(rctx->md));
ret = RSA_private_encrypt(tbslen + 1, rctx->tbuf,
sig, rsa, RSA_X931_PADDING);
} else if (rctx->pad_mode == RSA_PKCS1_PADDING) {
unsigned int sltmp;
ret = RSA_sign(EVP_MD_type(rctx->md),
tbs, tbslen, sig, &sltmp, rsa);
if (ret <= 0)
return ret;
ret = sltmp;
} else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) {
if (!setup_tbuf(rctx, ctx))
return -1;
if (!RSA_padding_add_PKCS1_PSS_mgf1(rsa,
rctx->tbuf, tbs,
rctx->md, rctx->mgf1md,
rctx->saltlen))
return -1;
ret = RSA_private_encrypt(RSA_size(rsa), rctx->tbuf,
sig, rsa, RSA_NO_PADDING);
} else
return -1;
} else
ret = RSA_private_encrypt(tbslen, tbs, sig, ctx->pkey->pkey.rsa,
rctx->pad_mode);
if (ret < 0)
return ret;
*siglen = ret;
return 1;
}
static int pkey_rsa_verifyrecover(EVP_PKEY_CTX *ctx,
unsigned char *rout, size_t *routlen,
const unsigned char *sig, size_t siglen)
{
int ret;
RSA_PKEY_CTX *rctx = ctx->data;
if (rctx->md) {
if (rctx->pad_mode == RSA_X931_PADDING) {
if (!setup_tbuf(rctx, ctx))
return -1;
ret = RSA_public_decrypt(siglen, sig,
rctx->tbuf, ctx->pkey->pkey.rsa,
RSA_X931_PADDING);
if (ret < 1)
return 0;
ret--;
if (rctx->tbuf[ret] != RSA_X931_hash_id(EVP_MD_type(rctx->md))) {
RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
RSA_R_ALGORITHM_MISMATCH);
return 0;
}
if (ret != EVP_MD_size(rctx->md)) {
RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
RSA_R_INVALID_DIGEST_LENGTH);
return 0;
}
if (rout)
memcpy(rout, rctx->tbuf, ret);
} else if (rctx->pad_mode == RSA_PKCS1_PADDING) {
size_t sltmp;
ret = int_rsa_verify(EVP_MD_type(rctx->md),
NULL, 0, rout, &sltmp,
sig, siglen, ctx->pkey->pkey.rsa);
if (ret <= 0)
return 0;
ret = sltmp;
} else
return -1;
} else
ret = RSA_public_decrypt(siglen, sig, rout, ctx->pkey->pkey.rsa,
rctx->pad_mode);
if (ret < 0)
return ret;
*routlen = ret;
return 1;
}
static int pkey_rsa_verify(EVP_PKEY_CTX *ctx,
const unsigned char *sig, size_t siglen,
const unsigned char *tbs, size_t tbslen)
{
RSA_PKEY_CTX *rctx = ctx->data;
RSA *rsa = ctx->pkey->pkey.rsa;
size_t rslen;
#ifdef OPENSSL_FIPS
int rv;
rv = pkey_fips_check_ctx(ctx);
if (rv < 0) {
RSAerr(RSA_F_PKEY_RSA_VERIFY,
RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
return -1;
}
#endif
if (rctx->md) {
#ifdef OPENSSL_FIPS
if (rv > 0) {
return FIPS_rsa_verify_digest(rsa,
tbs, tbslen,
rctx->md,
rctx->pad_mode,
rctx->saltlen,
rctx->mgf1md, sig, siglen);
}
#endif
if (rctx->pad_mode == RSA_PKCS1_PADDING)
return RSA_verify(EVP_MD_type(rctx->md), tbs, tbslen,
sig, siglen, rsa);
if (rctx->pad_mode == RSA_X931_PADDING) {
if (pkey_rsa_verifyrecover(ctx, NULL, &rslen, sig, siglen) <= 0)
return 0;
} else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) {
int ret;
if (!setup_tbuf(rctx, ctx))
return -1;
ret = RSA_public_decrypt(siglen, sig, rctx->tbuf,
rsa, RSA_NO_PADDING);
if (ret <= 0)
return 0;
ret = RSA_verify_PKCS1_PSS_mgf1(rsa, tbs,
rctx->md, rctx->mgf1md,
rctx->tbuf, rctx->saltlen);
if (ret <= 0)
return 0;
return 1;
} else
return -1;
} else {
if (!setup_tbuf(rctx, ctx))
return -1;
rslen = RSA_public_decrypt(siglen, sig, rctx->tbuf,
rsa, rctx->pad_mode);
if (rslen == 0)
return 0;
}
if ((rslen != tbslen) || memcmp(tbs, rctx->tbuf, rslen))
return 0;
return 1;
}
static int pkey_rsa_encrypt(EVP_PKEY_CTX *ctx,
unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen)
{
int ret;
RSA_PKEY_CTX *rctx = ctx->data;
if (rctx->pad_mode == RSA_PKCS1_OAEP_PADDING) {
int klen = RSA_size(ctx->pkey->pkey.rsa);
if (!setup_tbuf(rctx, ctx))
return -1;
if (!RSA_padding_add_PKCS1_OAEP_mgf1(rctx->tbuf, klen,
in, inlen,
rctx->oaep_label,
rctx->oaep_labellen,
rctx->md, rctx->mgf1md))
return -1;
ret = RSA_public_encrypt(klen, rctx->tbuf, out,
ctx->pkey->pkey.rsa, RSA_NO_PADDING);
} else
ret = RSA_public_encrypt(inlen, in, out, ctx->pkey->pkey.rsa,
rctx->pad_mode);
if (ret < 0)
return ret;
*outlen = ret;
return 1;
}
static int pkey_rsa_decrypt(EVP_PKEY_CTX *ctx,
unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen)
{
int ret;
RSA_PKEY_CTX *rctx = ctx->data;
if (rctx->pad_mode == RSA_PKCS1_OAEP_PADDING) {
int i;
if (!setup_tbuf(rctx, ctx))
return -1;
ret = RSA_private_decrypt(inlen, in, rctx->tbuf,
ctx->pkey->pkey.rsa, RSA_NO_PADDING);
if (ret <= 0)
return ret;
for (i = 0; i < ret; i++) {
if (rctx->tbuf[i])
break;
}
ret = RSA_padding_check_PKCS1_OAEP_mgf1(out, ret, rctx->tbuf + i,
ret - i, ret,
rctx->oaep_label,
rctx->oaep_labellen,
rctx->md, rctx->mgf1md);
} else
ret = RSA_private_decrypt(inlen, in, out, ctx->pkey->pkey.rsa,
rctx->pad_mode);
if (ret < 0)
return ret;
*outlen = ret;
return 1;
}
static int check_padding_md(const EVP_MD *md, int padding)
{
if (!md)
return 1;
if (padding == RSA_NO_PADDING) {
RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_PADDING_MODE);
return 0;
}
if (padding == RSA_X931_PADDING) {
if (RSA_X931_hash_id(EVP_MD_type(md)) == -1) {
RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_X931_DIGEST);
return 0;
}
return 1;
}
return 1;
}
static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
RSA_PKEY_CTX *rctx = ctx->data;
switch (type) {
case EVP_PKEY_CTRL_RSA_PADDING:
if ((p1 >= RSA_PKCS1_PADDING) && (p1 <= RSA_PKCS1_PSS_PADDING)) {
if (!check_padding_md(rctx->md, p1))
return 0;
if (p1 == RSA_PKCS1_PSS_PADDING) {
if (!(ctx->operation &
(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY)))
goto bad_pad;
if (!rctx->md)
rctx->md = EVP_sha1();
}
if (p1 == RSA_PKCS1_OAEP_PADDING) {
if (!(ctx->operation & EVP_PKEY_OP_TYPE_CRYPT))
goto bad_pad;
if (!rctx->md)
rctx->md = EVP_sha1();
}
rctx->pad_mode = p1;
return 1;
}
bad_pad:
RSAerr(RSA_F_PKEY_RSA_CTRL,
RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
return -2;
case EVP_PKEY_CTRL_GET_RSA_PADDING:
*(int *)p2 = rctx->pad_mode;
return 1;
case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PSS_SALTLEN);
return -2;
}
if (type == EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN)
*(int *)p2 = rctx->saltlen;
else {
if (p1 < -2)
return -2;
rctx->saltlen = p1;
}
return 1;
case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
if (p1 < 256) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_KEYBITS);
return -2;
}
rctx->nbits = p1;
return 1;
case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
if (!p2)
return -2;
BN_free(rctx->pub_exp);
rctx->pub_exp = p2;
return 1;
case EVP_PKEY_CTRL_RSA_OAEP_MD:
case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PADDING_MODE);
return -2;
}
if (type == EVP_PKEY_CTRL_GET_RSA_OAEP_MD)
*(const EVP_MD **)p2 = rctx->md;
else
rctx->md = p2;
return 1;
case EVP_PKEY_CTRL_MD:
if (!check_padding_md(p2, rctx->pad_mode))
return 0;
rctx->md = p2;
return 1;
case EVP_PKEY_CTRL_GET_MD:
*(const EVP_MD **)p2 = rctx->md;
return 1;
case EVP_PKEY_CTRL_RSA_MGF1_MD:
case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING
&& rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_MGF1_MD);
return -2;
}
if (type == EVP_PKEY_CTRL_GET_RSA_MGF1_MD) {
if (rctx->mgf1md)
*(const EVP_MD **)p2 = rctx->mgf1md;
else
*(const EVP_MD **)p2 = rctx->md;
} else
rctx->mgf1md = p2;
return 1;
case EVP_PKEY_CTRL_RSA_OAEP_LABEL:
if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PADDING_MODE);
return -2;
}
if (rctx->oaep_label)
OPENSSL_free(rctx->oaep_label);
if (p2 && p1 > 0) {
rctx->oaep_label = p2;
rctx->oaep_labellen = p1;
} else {
rctx->oaep_label = NULL;
rctx->oaep_labellen = 0;
}
return 1;
case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PADDING_MODE);
return -2;
}
*(unsigned char **)p2 = rctx->oaep_label;
return rctx->oaep_labellen;
case EVP_PKEY_CTRL_DIGESTINIT:
case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
case EVP_PKEY_CTRL_PKCS7_DECRYPT:
case EVP_PKEY_CTRL_PKCS7_SIGN:
return 1;
#ifndef OPENSSL_NO_CMS
case EVP_PKEY_CTRL_CMS_DECRYPT:
case EVP_PKEY_CTRL_CMS_ENCRYPT:
case EVP_PKEY_CTRL_CMS_SIGN:
return 1;
#endif
case EVP_PKEY_CTRL_PEER_KEY:
RSAerr(RSA_F_PKEY_RSA_CTRL,
RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
default:
return -2;
}
}
static int pkey_rsa_ctrl_str(EVP_PKEY_CTX *ctx,
const char *type, const char *value)
{
if (!value) {
RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_VALUE_MISSING);
return 0;
}
if (!strcmp(type, "rsa_padding_mode")) {
int pm;
if (!strcmp(value, "pkcs1"))
pm = RSA_PKCS1_PADDING;
else if (!strcmp(value, "sslv23"))
pm = RSA_SSLV23_PADDING;
else if (!strcmp(value, "none"))
pm = RSA_NO_PADDING;
else if (!strcmp(value, "oeap"))
pm = RSA_PKCS1_OAEP_PADDING;
else if (!strcmp(value, "oaep"))
pm = RSA_PKCS1_OAEP_PADDING;
else if (!strcmp(value, "x931"))
pm = RSA_X931_PADDING;
else if (!strcmp(value, "pss"))
pm = RSA_PKCS1_PSS_PADDING;
else {
RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_UNKNOWN_PADDING_TYPE);
return -2;
}
return EVP_PKEY_CTX_set_rsa_padding(ctx, pm);
}
if (!strcmp(type, "rsa_pss_saltlen")) {
int saltlen;
saltlen = atoi(value);
return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, saltlen);
}
if (!strcmp(type, "rsa_keygen_bits")) {
int nbits;
nbits = atoi(value);
return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, nbits);
}
if (!strcmp(type, "rsa_keygen_pubexp")) {
int ret;
BIGNUM *pubexp = NULL;
if (!BN_asc2bn(&pubexp, value))
return 0;
ret = EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp);
if (ret <= 0)
BN_free(pubexp);
return ret;
}
if (!strcmp(type, "rsa_mgf1_md")) {
const EVP_MD *md;
if (!(md = EVP_get_digestbyname(value))) {
RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_INVALID_DIGEST);
return 0;
}
return EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md);
}
if (!strcmp(type, "rsa_oaep_md")) {
const EVP_MD *md;
if (!(md = EVP_get_digestbyname(value))) {
RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_INVALID_DIGEST);
return 0;
}
return EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md);
}
if (!strcmp(type, "rsa_oaep_label")) {
unsigned char *lab;
long lablen;
int ret;
lab = string_to_hex(value, &lablen);
if (!lab)
return 0;
ret = EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, lab, lablen);
if (ret <= 0)
OPENSSL_free(lab);
return ret;
}
return -2;
}
static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
RSA *rsa = NULL;
RSA_PKEY_CTX *rctx = ctx->data;
BN_GENCB *pcb, cb;
int ret;
if (!rctx->pub_exp) {
rctx->pub_exp = BN_new();
if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4))
return 0;
}
rsa = RSA_new();
if (!rsa)
return 0;
if (ctx->pkey_gencb) {
pcb = &cb;
evp_pkey_set_cb_translate(pcb, ctx);
} else
pcb = NULL;
ret = RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, pcb);
if (ret > 0)
EVP_PKEY_assign_RSA(pkey, rsa);
else
RSA_free(rsa);
return ret;
}
const EVP_PKEY_METHOD rsa_pkey_meth = {
EVP_PKEY_RSA,
EVP_PKEY_FLAG_AUTOARGLEN,
pkey_rsa_init,
pkey_rsa_copy,
pkey_rsa_cleanup,
0, 0,
0,
pkey_rsa_keygen,
0,
pkey_rsa_sign,
0,
pkey_rsa_verify,
0,
pkey_rsa_verifyrecover,
0, 0, 0, 0,
0,
pkey_rsa_encrypt,
0,
pkey_rsa_decrypt,
0, 0,
pkey_rsa_ctrl,
pkey_rsa_ctrl_str
};

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openssl-1.0.2f/crypto/rsa/rsa_prn.c Normal file
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/* crypto/rsa/rsa_prn.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/rsa.h>
#include <openssl/evp.h>
#ifndef OPENSSL_NO_FP_API
int RSA_print_fp(FILE *fp, const RSA *x, int off)
{
BIO *b;
int ret;
if ((b = BIO_new(BIO_s_file())) == NULL) {
RSAerr(RSA_F_RSA_PRINT_FP, ERR_R_BUF_LIB);
return (0);
}
BIO_set_fp(b, fp, BIO_NOCLOSE);
ret = RSA_print(b, x, off);
BIO_free(b);
return (ret);
}
#endif
int RSA_print(BIO *bp, const RSA *x, int off)
{
EVP_PKEY *pk;
int ret;
pk = EVP_PKEY_new();
if (!pk || !EVP_PKEY_set1_RSA(pk, (RSA *)x))
return 0;
ret = EVP_PKEY_print_private(bp, pk, off, NULL);
EVP_PKEY_free(pk);
return ret;
}

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290
openssl-1.0.2f/crypto/rsa/rsa_pss.c Normal file
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/* rsa_pss.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2005.
*/
/* ====================================================================
* Copyright (c) 2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
static const unsigned char zeroes[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
#if defined(_MSC_VER) && defined(_ARM_)
# pragma optimize("g", off)
#endif
int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
const EVP_MD *Hash, const unsigned char *EM,
int sLen)
{
return RSA_verify_PKCS1_PSS_mgf1(rsa, mHash, Hash, NULL, EM, sLen);
}
int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
const EVP_MD *Hash, const EVP_MD *mgf1Hash,
const unsigned char *EM, int sLen)
{
int i;
int ret = 0;
int hLen, maskedDBLen, MSBits, emLen;
const unsigned char *H;
unsigned char *DB = NULL;
EVP_MD_CTX ctx;
unsigned char H_[EVP_MAX_MD_SIZE];
EVP_MD_CTX_init(&ctx);
if (mgf1Hash == NULL)
mgf1Hash = Hash;
hLen = EVP_MD_size(Hash);
if (hLen < 0)
goto err;
/*-
* Negative sLen has special meanings:
* -1 sLen == hLen
* -2 salt length is autorecovered from signature
* -N reserved
*/
if (sLen == -1)
sLen = hLen;
else if (sLen == -2)
sLen = -2;
else if (sLen < -2) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
goto err;
}
MSBits = (BN_num_bits(rsa->n) - 1) & 0x7;
emLen = RSA_size(rsa);
if (EM[0] & (0xFF << MSBits)) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_FIRST_OCTET_INVALID);
goto err;
}
if (MSBits == 0) {
EM++;
emLen--;
}
if (emLen < (hLen + sLen + 2)) { /* sLen can be small negative */
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE);
goto err;
}
if (EM[emLen - 1] != 0xbc) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_LAST_OCTET_INVALID);
goto err;
}
maskedDBLen = emLen - hLen - 1;
H = EM + maskedDBLen;
DB = OPENSSL_malloc(maskedDBLen);
if (!DB) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, ERR_R_MALLOC_FAILURE);
goto err;
}
if (PKCS1_MGF1(DB, maskedDBLen, H, hLen, mgf1Hash) < 0)
goto err;
for (i = 0; i < maskedDBLen; i++)
DB[i] ^= EM[i];
if (MSBits)
DB[0] &= 0xFF >> (8 - MSBits);
for (i = 0; DB[i] == 0 && i < (maskedDBLen - 1); i++) ;
if (DB[i++] != 0x1) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_RECOVERY_FAILED);
goto err;
}
if (sLen >= 0 && (maskedDBLen - i) != sLen) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
goto err;
}
if (!EVP_DigestInit_ex(&ctx, Hash, NULL)
|| !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes)
|| !EVP_DigestUpdate(&ctx, mHash, hLen))
goto err;
if (maskedDBLen - i) {
if (!EVP_DigestUpdate(&ctx, DB + i, maskedDBLen - i))
goto err;
}
if (!EVP_DigestFinal_ex(&ctx, H_, NULL))
goto err;
if (memcmp(H_, H, hLen)) {
RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_BAD_SIGNATURE);
ret = 0;
} else
ret = 1;
err:
if (DB)
OPENSSL_free(DB);
EVP_MD_CTX_cleanup(&ctx);
return ret;
}
int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
const unsigned char *mHash,
const EVP_MD *Hash, int sLen)
{
return RSA_padding_add_PKCS1_PSS_mgf1(rsa, EM, mHash, Hash, NULL, sLen);
}
int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
const unsigned char *mHash,
const EVP_MD *Hash, const EVP_MD *mgf1Hash,
int sLen)
{
int i;
int ret = 0;
int hLen, maskedDBLen, MSBits, emLen;
unsigned char *H, *salt = NULL, *p;
EVP_MD_CTX ctx;
if (mgf1Hash == NULL)
mgf1Hash = Hash;
hLen = EVP_MD_size(Hash);
if (hLen < 0)
goto err;
/*-
* Negative sLen has special meanings:
* -1 sLen == hLen
* -2 salt length is maximized
* -N reserved
*/
if (sLen == -1)
sLen = hLen;
else if (sLen == -2)
sLen = -2;
else if (sLen < -2) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
goto err;
}
MSBits = (BN_num_bits(rsa->n) - 1) & 0x7;
emLen = RSA_size(rsa);
if (MSBits == 0) {
*EM++ = 0;
emLen--;
}
if (sLen == -2) {
sLen = emLen - hLen - 2;
} else if (emLen < (hLen + sLen + 2)) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
goto err;
}
if (sLen > 0) {
salt = OPENSSL_malloc(sLen);
if (!salt) {
RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
ERR_R_MALLOC_FAILURE);
goto err;
}
if (RAND_bytes(salt, sLen) <= 0)
goto err;
}
maskedDBLen = emLen - hLen - 1;
H = EM + maskedDBLen;
EVP_MD_CTX_init(&ctx);
if (!EVP_DigestInit_ex(&ctx, Hash, NULL)
|| !EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes)
|| !EVP_DigestUpdate(&ctx, mHash, hLen))
goto err;
if (sLen && !EVP_DigestUpdate(&ctx, salt, sLen))
goto err;
if (!EVP_DigestFinal_ex(&ctx, H, NULL))
goto err;
EVP_MD_CTX_cleanup(&ctx);
/* Generate dbMask in place then perform XOR on it */
if (PKCS1_MGF1(EM, maskedDBLen, H, hLen, mgf1Hash))
goto err;
p = EM;
/*
* Initial PS XORs with all zeroes which is a NOP so just update pointer.
* Note from a test above this value is guaranteed to be non-negative.
*/
p += emLen - sLen - hLen - 2;
*p++ ^= 0x1;
if (sLen > 0) {
for (i = 0; i < sLen; i++)
*p++ ^= salt[i];
}
if (MSBits)
EM[0] &= 0xFF >> (8 - MSBits);
/* H is already in place so just set final 0xbc */
EM[emLen - 1] = 0xbc;
ret = 1;
err:
if (salt)
OPENSSL_free(salt);
return ret;
}
#if defined(_MSC_VER)
# pragma optimize("",on)
#endif

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openssl-1.0.2f/crypto/rsa/rsa_saos.c Normal file
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/* crypto/rsa/rsa_saos.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
int RSA_sign_ASN1_OCTET_STRING(int type,
const unsigned char *m, unsigned int m_len,
unsigned char *sigret, unsigned int *siglen,
RSA *rsa)
{
ASN1_OCTET_STRING sig;
int i, j, ret = 1;
unsigned char *p, *s;
sig.type = V_ASN1_OCTET_STRING;
sig.length = m_len;
sig.data = (unsigned char *)m;
i = i2d_ASN1_OCTET_STRING(&sig, NULL);
j = RSA_size(rsa);
if (i > (j - RSA_PKCS1_PADDING_SIZE)) {
RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,
RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
return (0);
}
s = (unsigned char *)OPENSSL_malloc((unsigned int)j + 1);
if (s == NULL) {
RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE);
return (0);
}
p = s;
i2d_ASN1_OCTET_STRING(&sig, &p);
i = RSA_private_encrypt(i, s, sigret, rsa, RSA_PKCS1_PADDING);
if (i <= 0)
ret = 0;
else
*siglen = i;
OPENSSL_cleanse(s, (unsigned int)j + 1);
OPENSSL_free(s);
return (ret);
}
int RSA_verify_ASN1_OCTET_STRING(int dtype,
const unsigned char *m,
unsigned int m_len, unsigned char *sigbuf,
unsigned int siglen, RSA *rsa)
{
int i, ret = 0;
unsigned char *s;
const unsigned char *p;
ASN1_OCTET_STRING *sig = NULL;
if (siglen != (unsigned int)RSA_size(rsa)) {
RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,
RSA_R_WRONG_SIGNATURE_LENGTH);
return (0);
}
s = (unsigned char *)OPENSSL_malloc((unsigned int)siglen);
if (s == NULL) {
RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE);
goto err;
}
i = RSA_public_decrypt((int)siglen, sigbuf, s, rsa, RSA_PKCS1_PADDING);
if (i <= 0)
goto err;
p = s;
sig = d2i_ASN1_OCTET_STRING(NULL, &p, (long)i);
if (sig == NULL)
goto err;
if (((unsigned int)sig->length != m_len) ||
(memcmp(m, sig->data, m_len) != 0)) {
RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, RSA_R_BAD_SIGNATURE);
} else
ret = 1;
err:
if (sig != NULL)
M_ASN1_OCTET_STRING_free(sig);
if (s != NULL) {
OPENSSL_cleanse(s, (unsigned int)siglen);
OPENSSL_free(s);
}
return (ret);
}

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openssl-1.0.2f/crypto/rsa/rsa_sign.c Normal file
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/* crypto/rsa/rsa_sign.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include "rsa_locl.h"
/* Size of an SSL signature: MD5+SHA1 */
#define SSL_SIG_LENGTH 36
int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
unsigned char *sigret, unsigned int *siglen, RSA *rsa)
{
X509_SIG sig;
ASN1_TYPE parameter;
int i, j, ret = 1;
unsigned char *p, *tmps = NULL;
const unsigned char *s = NULL;
X509_ALGOR algor;
ASN1_OCTET_STRING digest;
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_RSA_SIGN, RSA_R_NON_FIPS_RSA_METHOD);
return 0;
}
#endif
if (rsa->meth->rsa_sign) {
return rsa->meth->rsa_sign(type, m, m_len, sigret, siglen, rsa);
}
/* Special case: SSL signature, just check the length */
if (type == NID_md5_sha1) {
if (m_len != SSL_SIG_LENGTH) {
RSAerr(RSA_F_RSA_SIGN, RSA_R_INVALID_MESSAGE_LENGTH);
return (0);
}
i = SSL_SIG_LENGTH;
s = m;
} else {
sig.algor = &algor;
sig.algor->algorithm = OBJ_nid2obj(type);
if (sig.algor->algorithm == NULL) {
RSAerr(RSA_F_RSA_SIGN, RSA_R_UNKNOWN_ALGORITHM_TYPE);
return (0);
}
if (sig.algor->algorithm->length == 0) {
RSAerr(RSA_F_RSA_SIGN,
RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
return (0);
}
parameter.type = V_ASN1_NULL;
parameter.value.ptr = NULL;
sig.algor->parameter = &parameter;
sig.digest = &digest;
sig.digest->data = (unsigned char *)m; /* TMP UGLY CAST */
sig.digest->length = m_len;
i = i2d_X509_SIG(&sig, NULL);
}
j = RSA_size(rsa);
if (i > (j - RSA_PKCS1_PADDING_SIZE)) {
RSAerr(RSA_F_RSA_SIGN, RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
return (0);
}
if (type != NID_md5_sha1) {
tmps = (unsigned char *)OPENSSL_malloc((unsigned int)j + 1);
if (tmps == NULL) {
RSAerr(RSA_F_RSA_SIGN, ERR_R_MALLOC_FAILURE);
return (0);
}
p = tmps;
i2d_X509_SIG(&sig, &p);
s = tmps;
}
i = RSA_private_encrypt(i, s, sigret, rsa, RSA_PKCS1_PADDING);
if (i <= 0)
ret = 0;
else
*siglen = i;
if (type != NID_md5_sha1) {
OPENSSL_cleanse(tmps, (unsigned int)j + 1);
OPENSSL_free(tmps);
}
return (ret);
}
/*
* Check DigestInfo structure does not contain extraneous data by reencoding
* using DER and checking encoding against original.
*/
static int rsa_check_digestinfo(X509_SIG *sig, const unsigned char *dinfo,
int dinfolen)
{
unsigned char *der = NULL;
int derlen;
int ret = 0;
derlen = i2d_X509_SIG(sig, &der);
if (derlen <= 0)
return 0;
if (derlen == dinfolen && !memcmp(dinfo, der, derlen))
ret = 1;
OPENSSL_cleanse(der, derlen);
OPENSSL_free(der);
return ret;
}
int int_rsa_verify(int dtype, const unsigned char *m,
unsigned int m_len,
unsigned char *rm, size_t *prm_len,
const unsigned char *sigbuf, size_t siglen, RSA *rsa)
{
int i, ret = 0, sigtype;
unsigned char *s;
X509_SIG *sig = NULL;
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(rsa->meth->flags & RSA_FLAG_FIPS_METHOD)
&& !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_NON_FIPS_RSA_METHOD);
return 0;
}
#endif
if (siglen != (unsigned int)RSA_size(rsa)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_WRONG_SIGNATURE_LENGTH);
return (0);
}
if ((dtype == NID_md5_sha1) && rm) {
i = RSA_public_decrypt((int)siglen,
sigbuf, rm, rsa, RSA_PKCS1_PADDING);
if (i <= 0)
return 0;
*prm_len = i;
return 1;
}
s = (unsigned char *)OPENSSL_malloc((unsigned int)siglen);
if (s == NULL) {
RSAerr(RSA_F_INT_RSA_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
if ((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_INVALID_MESSAGE_LENGTH);
goto err;
}
i = RSA_public_decrypt((int)siglen, sigbuf, s, rsa, RSA_PKCS1_PADDING);
if (i <= 0)
goto err;
/*
* Oddball MDC2 case: signature can be OCTET STRING. check for correct
* tag and length octets.
*/
if (dtype == NID_mdc2 && i == 18 && s[0] == 0x04 && s[1] == 0x10) {
if (rm) {
memcpy(rm, s + 2, 16);
*prm_len = 16;
ret = 1;
} else if (memcmp(m, s + 2, 16)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_BAD_SIGNATURE);
} else {
ret = 1;
}
} else if (dtype == NID_md5_sha1) {
/* Special case: SSL signature */
if ((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_BAD_SIGNATURE);
else
ret = 1;
} else {
const unsigned char *p = s;
sig = d2i_X509_SIG(NULL, &p, (long)i);
if (sig == NULL)
goto err;
/* Excess data can be used to create forgeries */
if (p != s + i || !rsa_check_digestinfo(sig, s, i)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_BAD_SIGNATURE);
goto err;
}
/*
* Parameters to the signature algorithm can also be used to create
* forgeries
*/
if (sig->algor->parameter
&& ASN1_TYPE_get(sig->algor->parameter) != V_ASN1_NULL) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_BAD_SIGNATURE);
goto err;
}
sigtype = OBJ_obj2nid(sig->algor->algorithm);
#ifdef RSA_DEBUG
/* put a backward compatibility flag in EAY */
fprintf(stderr, "in(%s) expect(%s)\n", OBJ_nid2ln(sigtype),
OBJ_nid2ln(dtype));
#endif
if (sigtype != dtype) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_ALGORITHM_MISMATCH);
goto err;
}
if (rm) {
const EVP_MD *md;
md = EVP_get_digestbynid(dtype);
if (md && (EVP_MD_size(md) != sig->digest->length))
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_INVALID_DIGEST_LENGTH);
else {
memcpy(rm, sig->digest->data, sig->digest->length);
*prm_len = sig->digest->length;
ret = 1;
}
} else if (((unsigned int)sig->digest->length != m_len) ||
(memcmp(m, sig->digest->data, m_len) != 0)) {
RSAerr(RSA_F_INT_RSA_VERIFY, RSA_R_BAD_SIGNATURE);
} else
ret = 1;
}
err:
if (sig != NULL)
X509_SIG_free(sig);
if (s != NULL) {
OPENSSL_cleanse(s, (unsigned int)siglen);
OPENSSL_free(s);
}
return (ret);
}
int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
const unsigned char *sigbuf, unsigned int siglen, RSA *rsa)
{
if (rsa->meth->rsa_verify) {
return rsa->meth->rsa_verify(dtype, m, m_len, sigbuf, siglen, rsa);
}
return int_rsa_verify(dtype, m, m_len, NULL, NULL, sigbuf, siglen, rsa);
}

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/* crypto/rsa/rsa_ssl.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
const unsigned char *from, int flen)
{
int i, j;
unsigned char *p;
if (flen > (tlen - 11)) {
RSAerr(RSA_F_RSA_PADDING_ADD_SSLV23,
RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return (0);
}
p = (unsigned char *)to;
*(p++) = 0;
*(p++) = 2; /* Public Key BT (Block Type) */
/* pad out with non-zero random data */
j = tlen - 3 - 8 - flen;
if (RAND_bytes(p, j) <= 0)
return (0);
for (i = 0; i < j; i++) {
if (*p == '\0')
do {
if (RAND_bytes(p, 1) <= 0)
return (0);
} while (*p == '\0');
p++;
}
memset(p, 3, 8);
p += 8;
*(p++) = '\0';
memcpy(p, from, (unsigned int)flen);
return (1);
}
int RSA_padding_check_SSLv23(unsigned char *to, int tlen,
const unsigned char *from, int flen, int num)
{
int i, j, k;
const unsigned char *p;
p = from;
if (flen < 10) {
RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23, RSA_R_DATA_TOO_SMALL);
return (-1);
}
if ((num != (flen + 1)) || (*(p++) != 02)) {
RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23, RSA_R_BLOCK_TYPE_IS_NOT_02);
return (-1);
}
/* scan over padding data */
j = flen - 1; /* one for type */
for (i = 0; i < j; i++)
if (*(p++) == 0)
break;
if ((i == j) || (i < 8)) {
RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23,
RSA_R_NULL_BEFORE_BLOCK_MISSING);
return (-1);
}
for (k = -9; k < -1; k++) {
if (p[k] != 0x03)
break;
}
if (k == -1) {
RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23, RSA_R_SSLV3_ROLLBACK_ATTACK);
return (-1);
}
i++; /* Skip over the '\0' */
j -= i;
if (j > tlen) {
RSAerr(RSA_F_RSA_PADDING_CHECK_SSLV23, RSA_R_DATA_TOO_LARGE);
return (-1);
}
memcpy(to, p, (unsigned int)j);
return (j);
}

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/* test vectors from p1ovect1.txt */
#include <stdio.h>
#include <string.h>
#include "e_os.h"
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/bn.h>
#ifdef OPENSSL_NO_RSA
int main(int argc, char *argv[])
{
printf("No RSA support\n");
return (0);
}
#else
# include <openssl/rsa.h>
# define SetKey \
key->n = BN_bin2bn(n, sizeof(n)-1, key->n); \
key->e = BN_bin2bn(e, sizeof(e)-1, key->e); \
key->d = BN_bin2bn(d, sizeof(d)-1, key->d); \
key->p = BN_bin2bn(p, sizeof(p)-1, key->p); \
key->q = BN_bin2bn(q, sizeof(q)-1, key->q); \
key->dmp1 = BN_bin2bn(dmp1, sizeof(dmp1)-1, key->dmp1); \
key->dmq1 = BN_bin2bn(dmq1, sizeof(dmq1)-1, key->dmq1); \
key->iqmp = BN_bin2bn(iqmp, sizeof(iqmp)-1, key->iqmp); \
memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); \
return (sizeof(ctext_ex) - 1);
static int key1(RSA *key, unsigned char *c)
{
static unsigned char n[] =
"\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
"\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
"\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
"\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
"\xF5";
static unsigned char e[] = "\x11";
static unsigned char d[] =
"\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44"
"\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64"
"\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9"
"\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51";
static unsigned char p[] =
"\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
"\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12"
"\x0D";
static unsigned char q[] =
"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
"\x89";
static unsigned char dmp1[] =
"\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF"
"\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05";
static unsigned char dmq1[] =
"\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99"
"\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D"
"\x51";
static unsigned char iqmp[] =
"\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8"
"\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26";
static unsigned char ctext_ex[] =
"\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89"
"\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52"
"\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44"
"\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2";
SetKey;
}
static int key2(RSA *key, unsigned char *c)
{
static unsigned char n[] =
"\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8"
"\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26"
"\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8"
"\x34\x77\xCF";
static unsigned char e[] = "\x3";
static unsigned char d[] =
"\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2"
"\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41"
"\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21"
"\xE5\xEB";
static unsigned char p[] =
"\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92"
"\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91";
static unsigned char q[] =
"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F";
static unsigned char dmp1[] =
"\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61"
"\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B";
static unsigned char dmq1[] =
"\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90"
"\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F";
static unsigned char iqmp[] =
"\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13"
"\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D";
static unsigned char ctext_ex[] =
"\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a"
"\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4"
"\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52"
"\x62\x51";
SetKey;
}
static int key3(RSA *key, unsigned char *c)
{
static unsigned char n[] =
"\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71"
"\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5"
"\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD"
"\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80"
"\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25"
"\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39"
"\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68"
"\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD"
"\xCB";
static unsigned char e[] = "\x11";
static unsigned char d[] =
"\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD"
"\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41"
"\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69"
"\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA"
"\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94"
"\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A"
"\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94"
"\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3"
"\xC1";
static unsigned char p[] =
"\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60"
"\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6"
"\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A"
"\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65"
"\x99";
static unsigned char q[] =
"\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
"\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
"\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
"\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15"
"\x03";
static unsigned char dmp1[] =
"\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A"
"\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E"
"\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E"
"\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81";
static unsigned char dmq1[] =
"\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9"
"\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7"
"\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D"
"\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D";
static unsigned char iqmp[] =
"\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23"
"\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11"
"\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E"
"\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39"
"\xF7";
static unsigned char ctext_ex[] =
"\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7"
"\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce"
"\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3"
"\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06"
"\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86"
"\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4"
"\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a"
"\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1";
SetKey;
}
static int pad_unknown(void)
{
unsigned long l;
while ((l = ERR_get_error()) != 0)
if (ERR_GET_REASON(l) == RSA_R_UNKNOWN_PADDING_TYPE)
return (1);
return (0);
}
static const char rnd_seed[] =
"string to make the random number generator think it has entropy";
int main(int argc, char *argv[])
{
int err = 0;
int v;
RSA *key;
unsigned char ptext[256];
unsigned char ctext[256];
static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a";
unsigned char ctext_ex[256];
int plen;
int clen = 0;
int num;
int n;
CRYPTO_malloc_debug_init();
CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
RAND_seed(rnd_seed, sizeof rnd_seed); /* or OAEP may fail */
plen = sizeof(ptext_ex) - 1;
for (v = 0; v < 6; v++) {
key = RSA_new();
switch (v % 3) {
case 0:
clen = key1(key, ctext_ex);
break;
case 1:
clen = key2(key, ctext_ex);
break;
case 2:
clen = key3(key, ctext_ex);
break;
}
if (v / 3 >= 1)
key->flags |= RSA_FLAG_NO_CONSTTIME;
num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
RSA_PKCS1_PADDING);
if (num != clen) {
printf("PKCS#1 v1.5 encryption failed!\n");
err = 1;
goto oaep;
}
num = RSA_private_decrypt(num, ctext, ptext, key, RSA_PKCS1_PADDING);
if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
printf("PKCS#1 v1.5 decryption failed!\n");
err = 1;
} else
printf("PKCS #1 v1.5 encryption/decryption ok\n");
oaep:
ERR_clear_error();
num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
RSA_PKCS1_OAEP_PADDING);
if (num == -1 && pad_unknown()) {
printf("No OAEP support\n");
goto next;
}
if (num != clen) {
printf("OAEP encryption failed!\n");
err = 1;
goto next;
}
num = RSA_private_decrypt(num, ctext, ptext, key,
RSA_PKCS1_OAEP_PADDING);
if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
printf("OAEP decryption (encrypted data) failed!\n");
err = 1;
} else if (memcmp(ctext, ctext_ex, num) == 0)
printf("OAEP test vector %d passed!\n", v);
/*
* Different ciphertexts (rsa_oaep.c without -DPKCS_TESTVECT). Try
* decrypting ctext_ex
*/
num = RSA_private_decrypt(clen, ctext_ex, ptext, key,
RSA_PKCS1_OAEP_PADDING);
if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
printf("OAEP decryption (test vector data) failed!\n");
err = 1;
} else
printf("OAEP encryption/decryption ok\n");
/* Try decrypting corrupted ciphertexts. */
for (n = 0; n < clen; ++n) {
ctext[n] ^= 1;
num = RSA_private_decrypt(clen, ctext, ptext, key,
RSA_PKCS1_OAEP_PADDING);
if (num > 0) {
printf("Corrupt data decrypted!\n");
err = 1;
break;
}
ctext[n] ^= 1;
}
/* Test truncated ciphertexts, as well as negative length. */
for (n = -1; n < clen; ++n) {
num = RSA_private_decrypt(n, ctext, ptext, key,
RSA_PKCS1_OAEP_PADDING);
if (num > 0) {
printf("Truncated data decrypted!\n");
err = 1;
break;
}
}
next:
RSA_free(key);
}
CRYPTO_cleanup_all_ex_data();
ERR_remove_thread_state(NULL);
CRYPTO_mem_leaks_fp(stderr);
# ifdef OPENSSL_SYS_NETWARE
if (err)
printf("ERROR: %d\n", err);
# endif
return err;
}
#endif

167
openssl-1.0.2f/crypto/rsa/rsa_x931.c Normal file
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@@ -0,0 +1,167 @@
/* rsa_x931.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2005.
*/
/* ====================================================================
* Copyright (c) 2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
int RSA_padding_add_X931(unsigned char *to, int tlen,
const unsigned char *from, int flen)
{
int j;
unsigned char *p;
/*
* Absolute minimum amount of padding is 1 header nibble, 1 padding
* nibble and 2 trailer bytes: but 1 hash if is already in 'from'.
*/
j = tlen - flen - 2;
if (j < 0) {
RSAerr(RSA_F_RSA_PADDING_ADD_X931, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
return -1;
}
p = (unsigned char *)to;
/* If no padding start and end nibbles are in one byte */
if (j == 0)
*p++ = 0x6A;
else {
*p++ = 0x6B;
if (j > 1) {
memset(p, 0xBB, j - 1);
p += j - 1;
}
*p++ = 0xBA;
}
memcpy(p, from, (unsigned int)flen);
p += flen;
*p = 0xCC;
return (1);
}
int RSA_padding_check_X931(unsigned char *to, int tlen,
const unsigned char *from, int flen, int num)
{
int i = 0, j;
const unsigned char *p;
p = from;
if ((num != flen) || ((*p != 0x6A) && (*p != 0x6B))) {
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_HEADER);
return -1;
}
if (*p++ == 0x6B) {
j = flen - 3;
for (i = 0; i < j; i++) {
unsigned char c = *p++;
if (c == 0xBA)
break;
if (c != 0xBB) {
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_PADDING);
return -1;
}
}
j -= i;
if (i == 0) {
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_PADDING);
return -1;
}
} else
j = flen - 2;
if (p[j] != 0xCC) {
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_TRAILER);
return -1;
}
memcpy(to, p, (unsigned int)j);
return (j);
}
/* Translate between X931 hash ids and NIDs */
int RSA_X931_hash_id(int nid)
{
switch (nid) {
case NID_sha1:
return 0x33;
case NID_sha256:
return 0x34;
case NID_sha384:
return 0x36;
case NID_sha512:
return 0x35;
}
return -1;
}

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