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2017-02-25 23:55:24 +01:00
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142
openssl-1.0.2f/crypto/ecdsa/Makefile Normal file
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#
# crypto/ecdsa/Makefile
#
DIR= ecdsa
TOP= ../..
CC= cc
INCLUDES= -I.. -I$(TOP) -I../../include
CFLAG=-g -Wall
MAKEFILE= Makefile
AR= ar r
CFLAGS= $(INCLUDES) $(CFLAG)
GENERAL=Makefile
TEST=ecdsatest.c
APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC= ecs_lib.c ecs_asn1.c ecs_ossl.c ecs_sign.c ecs_vrf.c ecs_err.c
LIBOBJ= ecs_lib.o ecs_asn1.o ecs_ossl.o ecs_sign.o ecs_vrf.o ecs_err.o
SRC= $(LIBSRC)
EXHEADER= ecdsa.h
HEADER= ecs_locl.h $(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.
ecs_asn1.o: ../../include/openssl/asn1.h ../../include/openssl/asn1t.h
ecs_asn1.o: ../../include/openssl/bio.h ../../include/openssl/crypto.h
ecs_asn1.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ecs_asn1.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
ecs_asn1.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
ecs_asn1.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ecs_asn1.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
ecs_asn1.o: ../../include/openssl/symhacks.h ecs_asn1.c ecs_locl.h
ecs_err.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ecs_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
ecs_err.o: ../../include/openssl/ec.h ../../include/openssl/ecdsa.h
ecs_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
ecs_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
ecs_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/safestack.h
ecs_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ecs_err.o: ecs_err.c
ecs_lib.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ecs_lib.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
ecs_lib.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
ecs_lib.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
ecs_lib.o: ../../include/openssl/ecdsa.h ../../include/openssl/engine.h
ecs_lib.o: ../../include/openssl/err.h ../../include/openssl/evp.h
ecs_lib.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ecs_lib.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
ecs_lib.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ecs_lib.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
ecs_lib.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
ecs_lib.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
ecs_lib.o: ../../include/openssl/x509_vfy.h ecs_lib.c ecs_locl.h
ecs_ossl.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ecs_ossl.o: ../../include/openssl/bn.h ../../include/openssl/crypto.h
ecs_ossl.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ecs_ossl.o: ../../include/openssl/ecdsa.h ../../include/openssl/err.h
ecs_ossl.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ecs_ossl.o: ../../include/openssl/opensslconf.h
ecs_ossl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ecs_ossl.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
ecs_ossl.o: ../../include/openssl/symhacks.h ecs_locl.h ecs_ossl.c
ecs_sign.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ecs_sign.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
ecs_sign.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ecs_sign.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
ecs_sign.o: ../../include/openssl/engine.h ../../include/openssl/evp.h
ecs_sign.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ecs_sign.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
ecs_sign.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ecs_sign.o: ../../include/openssl/pkcs7.h ../../include/openssl/rand.h
ecs_sign.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
ecs_sign.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ecs_sign.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
ecs_sign.o: ecs_locl.h ecs_sign.c
ecs_vrf.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ecs_vrf.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
ecs_vrf.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ecs_vrf.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
ecs_vrf.o: ../../include/openssl/engine.h ../../include/openssl/evp.h
ecs_vrf.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ecs_vrf.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
ecs_vrf.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ecs_vrf.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
ecs_vrf.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
ecs_vrf.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
ecs_vrf.o: ../../include/openssl/x509_vfy.h ecs_locl.h ecs_vrf.c

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openssl-1.0.2f/crypto/ecdsa/ecdsa.h Normal file
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/* crypto/ecdsa/ecdsa.h */
/**
* \file crypto/ecdsa/ecdsa.h Include file for the OpenSSL ECDSA functions
* \author Written by Nils Larsch for the OpenSSL project
*/
/* ====================================================================
* 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).
*
*/
#ifndef HEADER_ECDSA_H
# define HEADER_ECDSA_H
# include <openssl/opensslconf.h>
# ifdef OPENSSL_NO_ECDSA
# error ECDSA is disabled.
# endif
# include <openssl/ec.h>
# include <openssl/ossl_typ.h>
# ifndef OPENSSL_NO_DEPRECATED
# include <openssl/bn.h>
# endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ECDSA_SIG_st {
BIGNUM *r;
BIGNUM *s;
} ECDSA_SIG;
/** Allocates and initialize a ECDSA_SIG structure
* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
*/
ECDSA_SIG *ECDSA_SIG_new(void);
/** frees a ECDSA_SIG structure
* \param sig pointer to the ECDSA_SIG structure
*/
void ECDSA_SIG_free(ECDSA_SIG *sig);
/** DER encode content of ECDSA_SIG object (note: this function modifies *pp
* (*pp += length of the DER encoded signature)).
* \param sig pointer to the ECDSA_SIG object
* \param pp pointer to a unsigned char pointer for the output or NULL
* \return the length of the DER encoded ECDSA_SIG object or 0
*/
int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
/** Decodes a DER encoded ECDSA signature (note: this function changes *pp
* (*pp += len)).
* \param sig pointer to ECDSA_SIG pointer (may be NULL)
* \param pp memory buffer with the DER encoded signature
* \param len length of the buffer
* \return pointer to the decoded ECDSA_SIG structure (or NULL)
*/
ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
/** Computes the ECDSA signature of the given hash value using
* the supplied private key and returns the created signature.
* \param dgst pointer to the hash value
* \param dgst_len length of the hash value
* \param eckey EC_KEY object containing a private EC key
* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
*/
ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len,
EC_KEY *eckey);
/** Computes ECDSA signature of a given hash value using the supplied
* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
* \param dgst pointer to the hash value to sign
* \param dgstlen length of the hash value
* \param kinv BIGNUM with a pre-computed inverse k (optional)
* \param rp BIGNUM with a pre-computed rp value (optioanl),
* see ECDSA_sign_setup
* \param eckey EC_KEY object containing a private EC key
* \return pointer to a ECDSA_SIG structure or NULL if an error occurred
*/
ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen,
const BIGNUM *kinv, const BIGNUM *rp,
EC_KEY *eckey);
/** Verifies that the supplied signature is a valid ECDSA
* signature of the supplied hash value using the supplied public key.
* \param dgst pointer to the hash value
* \param dgst_len length of the hash value
* \param sig ECDSA_SIG structure
* \param eckey EC_KEY object containing a public EC key
* \return 1 if the signature is valid, 0 if the signature is invalid
* and -1 on error
*/
int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey);
const ECDSA_METHOD *ECDSA_OpenSSL(void);
/** Sets the default ECDSA method
* \param meth new default ECDSA_METHOD
*/
void ECDSA_set_default_method(const ECDSA_METHOD *meth);
/** Returns the default ECDSA method
* \return pointer to ECDSA_METHOD structure containing the default method
*/
const ECDSA_METHOD *ECDSA_get_default_method(void);
/** Sets method to be used for the ECDSA operations
* \param eckey EC_KEY object
* \param meth new method
* \return 1 on success and 0 otherwise
*/
int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth);
/** Returns the maximum length of the DER encoded signature
* \param eckey EC_KEY object
* \return numbers of bytes required for the DER encoded signature
*/
int ECDSA_size(const EC_KEY *eckey);
/** Precompute parts of the signing operation
* \param eckey EC_KEY object containing a private EC key
* \param ctx BN_CTX object (optional)
* \param kinv BIGNUM pointer for the inverse of k
* \param rp BIGNUM pointer for x coordinate of k * generator
* \return 1 on success and 0 otherwise
*/
int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp);
/** Computes ECDSA signature of a given hash value using the supplied
* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
* \param type this parameter is ignored
* \param dgst pointer to the hash value to sign
* \param dgstlen length of the hash value
* \param sig memory for the DER encoded created signature
* \param siglen pointer to the length of the returned signature
* \param eckey EC_KEY object containing a private EC key
* \return 1 on success and 0 otherwise
*/
int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
/** Computes ECDSA signature of a given hash value using the supplied
* private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
* \param type this parameter is ignored
* \param dgst pointer to the hash value to sign
* \param dgstlen length of the hash value
* \param sig buffer to hold the DER encoded signature
* \param siglen pointer to the length of the returned signature
* \param kinv BIGNUM with a pre-computed inverse k (optional)
* \param rp BIGNUM with a pre-computed rp value (optioanl),
* see ECDSA_sign_setup
* \param eckey EC_KEY object containing a private EC key
* \return 1 on success and 0 otherwise
*/
int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen,
unsigned char *sig, unsigned int *siglen,
const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);
/** Verifies that the given signature is valid ECDSA signature
* of the supplied hash value using the specified public key.
* \param type this parameter is ignored
* \param dgst pointer to the hash value
* \param dgstlen length of the hash value
* \param sig pointer to the DER encoded signature
* \param siglen length of the DER encoded signature
* \param eckey EC_KEY object containing a public EC key
* \return 1 if the signature is valid, 0 if the signature is invalid
* and -1 on error
*/
int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen,
const unsigned char *sig, int siglen, EC_KEY *eckey);
/* the standard ex_data functions */
int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
*new_func, CRYPTO_EX_dup *dup_func,
CRYPTO_EX_free *free_func);
int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg);
void *ECDSA_get_ex_data(EC_KEY *d, int idx);
/** Allocates and initialize a ECDSA_METHOD structure
* \param ecdsa_method pointer to ECDSA_METHOD to copy. (May be NULL)
* \return pointer to a ECDSA_METHOD structure or NULL if an error occurred
*/
ECDSA_METHOD *ECDSA_METHOD_new(const ECDSA_METHOD *ecdsa_method);
/** frees a ECDSA_METHOD structure
* \param ecdsa_method pointer to the ECDSA_METHOD structure
*/
void ECDSA_METHOD_free(ECDSA_METHOD *ecdsa_method);
/** Sets application specific data in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param app application specific data to set
*/
void ECDSA_METHOD_set_app_data(ECDSA_METHOD *ecdsa_method, void *app);
/** Returns application specific data from a ECDSA_METHOD structure
* \param ecdsa_method pointer to ECDSA_METHOD structure
* \return pointer to application specific data.
*/
void *ECDSA_METHOD_get_app_data(ECDSA_METHOD *ecdsa_method);
/** Set the ECDSA_do_sign function in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param ecdsa_do_sign a funtion of type ECDSA_do_sign
*/
void ECDSA_METHOD_set_sign(ECDSA_METHOD *ecdsa_method,
ECDSA_SIG *(*ecdsa_do_sign) (const unsigned char
*dgst, int dgst_len,
const BIGNUM *inv,
const BIGNUM *rp,
EC_KEY *eckey));
/** Set the ECDSA_sign_setup function in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param ecdsa_sign_setup a funtion of type ECDSA_sign_setup
*/
void ECDSA_METHOD_set_sign_setup(ECDSA_METHOD *ecdsa_method,
int (*ecdsa_sign_setup) (EC_KEY *eckey,
BN_CTX *ctx,
BIGNUM **kinv,
BIGNUM **r));
/** Set the ECDSA_do_verify function in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param ecdsa_do_verify a funtion of type ECDSA_do_verify
*/
void ECDSA_METHOD_set_verify(ECDSA_METHOD *ecdsa_method,
int (*ecdsa_do_verify) (const unsigned char
*dgst, int dgst_len,
const ECDSA_SIG *sig,
EC_KEY *eckey));
void ECDSA_METHOD_set_flags(ECDSA_METHOD *ecdsa_method, int flags);
/** Set the flags field in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param flags flags value to set
*/
void ECDSA_METHOD_set_name(ECDSA_METHOD *ecdsa_method, char *name);
/** Set the name field in the ECDSA_METHOD
* \param ecdsa_method pointer to existing ECDSA_METHOD
* \param name name to set
*/
/* 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_ECDSA_strings(void);
/* Error codes for the ECDSA functions. */
/* Function codes. */
# define ECDSA_F_ECDSA_CHECK 104
# define ECDSA_F_ECDSA_DATA_NEW_METHOD 100
# define ECDSA_F_ECDSA_DO_SIGN 101
# define ECDSA_F_ECDSA_DO_VERIFY 102
# define ECDSA_F_ECDSA_METHOD_NEW 105
# define ECDSA_F_ECDSA_SIGN_SETUP 103
/* Reason codes. */
# define ECDSA_R_BAD_SIGNATURE 100
# define ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 101
# define ECDSA_R_ERR_EC_LIB 102
# define ECDSA_R_MISSING_PARAMETERS 103
# define ECDSA_R_NEED_NEW_SETUP_VALUES 106
# define ECDSA_R_NON_FIPS_METHOD 107
# define ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED 104
# define ECDSA_R_SIGNATURE_MALLOC_FAILED 105
#ifdef __cplusplus
}
#endif
#endif

556
openssl-1.0.2f/crypto/ecdsa/ecdsatest.c Normal file
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/* crypto/ecdsa/ecdsatest.c */
/*
* Written by Nils Larsch for the OpenSSL project.
*/
/* ====================================================================
* 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).
*
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* Portions of the attached software ("Contribution") are developed by
* SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
*
* The Contribution is licensed pursuant to the OpenSSL open source
* license provided above.
*
* The elliptic curve binary polynomial software is originally written by
* Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/opensslconf.h> /* To see if OPENSSL_NO_ECDSA is defined */
#ifdef OPENSSL_NO_ECDSA
int main(int argc, char *argv[])
{
puts("Elliptic curves are disabled.");
return 0;
}
#else
# include <openssl/crypto.h>
# include <openssl/bio.h>
# include <openssl/evp.h>
# include <openssl/bn.h>
# include <openssl/ecdsa.h>
# ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
# endif
# include <openssl/err.h>
# include <openssl/rand.h>
static const char rnd_seed[] = "string to make the random number generator "
"think it has entropy";
/* declaration of the test functions */
int x9_62_tests(BIO *);
int x9_62_test_internal(BIO *out, int nid, const char *r, const char *s);
int test_builtin(BIO *);
/* functions to change the RAND_METHOD */
int change_rand(void);
int restore_rand(void);
int fbytes(unsigned char *buf, int num);
RAND_METHOD fake_rand;
const RAND_METHOD *old_rand;
int change_rand(void)
{
/* save old rand method */
if ((old_rand = RAND_get_rand_method()) == NULL)
return 0;
fake_rand.seed = old_rand->seed;
fake_rand.cleanup = old_rand->cleanup;
fake_rand.add = old_rand->add;
fake_rand.status = old_rand->status;
/* use own random function */
fake_rand.bytes = fbytes;
fake_rand.pseudorand = old_rand->bytes;
/* set new RAND_METHOD */
if (!RAND_set_rand_method(&fake_rand))
return 0;
return 1;
}
int restore_rand(void)
{
if (!RAND_set_rand_method(old_rand))
return 0;
else
return 1;
}
static int fbytes_counter = 0;
static const char *numbers[8] = {
"651056770906015076056810763456358567190100156695615665659",
"6140507067065001063065065565667405560006161556565665656654",
"8763001015071075675010661307616710783570106710677817767166"
"71676178726717",
"7000000175690566466555057817571571075705015757757057795755"
"55657156756655",
"1275552191113212300012030439187146164646146646466749494799",
"1542725565216523985789236956265265265235675811949404040041",
"1456427555219115346513212300075341203043918714616464614664"
"64667494947990",
"1712787255652165239672857892369562652652652356758119494040"
"40041670216363"
};
int fbytes(unsigned char *buf, int num)
{
int ret;
BIGNUM *tmp = NULL;
if (fbytes_counter >= 8)
return 0;
tmp = BN_new();
if (!tmp)
return 0;
if (!BN_dec2bn(&tmp, numbers[fbytes_counter])) {
BN_free(tmp);
return 0;
}
fbytes_counter++;
if (num != BN_num_bytes(tmp) || !BN_bn2bin(tmp, buf))
ret = 0;
else
ret = 1;
if (tmp)
BN_free(tmp);
return ret;
}
/* some tests from the X9.62 draft */
int x9_62_test_internal(BIO *out, int nid, const char *r_in, const char *s_in)
{
int ret = 0;
const char message[] = "abc";
unsigned char digest[20];
unsigned int dgst_len = 0;
EVP_MD_CTX md_ctx;
EC_KEY *key = NULL;
ECDSA_SIG *signature = NULL;
BIGNUM *r = NULL, *s = NULL;
EVP_MD_CTX_init(&md_ctx);
/* get the message digest */
EVP_DigestInit(&md_ctx, EVP_ecdsa());
EVP_DigestUpdate(&md_ctx, (const void *)message, 3);
EVP_DigestFinal(&md_ctx, digest, &dgst_len);
BIO_printf(out, "testing %s: ", OBJ_nid2sn(nid));
/* create the key */
if ((key = EC_KEY_new_by_curve_name(nid)) == NULL)
goto x962_int_err;
if (!EC_KEY_generate_key(key))
goto x962_int_err;
BIO_printf(out, ".");
(void)BIO_flush(out);
/* create the signature */
signature = ECDSA_do_sign(digest, 20, key);
if (signature == NULL)
goto x962_int_err;
BIO_printf(out, ".");
(void)BIO_flush(out);
/* compare the created signature with the expected signature */
if ((r = BN_new()) == NULL || (s = BN_new()) == NULL)
goto x962_int_err;
if (!BN_dec2bn(&r, r_in) || !BN_dec2bn(&s, s_in))
goto x962_int_err;
if (BN_cmp(signature->r, r) || BN_cmp(signature->s, s))
goto x962_int_err;
BIO_printf(out, ".");
(void)BIO_flush(out);
/* verify the signature */
if (ECDSA_do_verify(digest, 20, signature, key) != 1)
goto x962_int_err;
BIO_printf(out, ".");
(void)BIO_flush(out);
BIO_printf(out, " ok\n");
ret = 1;
x962_int_err:
if (!ret)
BIO_printf(out, " failed\n");
if (key)
EC_KEY_free(key);
if (signature)
ECDSA_SIG_free(signature);
if (r)
BN_free(r);
if (s)
BN_free(s);
EVP_MD_CTX_cleanup(&md_ctx);
return ret;
}
int x9_62_tests(BIO *out)
{
int ret = 0;
BIO_printf(out, "some tests from X9.62:\n");
/* set own rand method */
if (!change_rand())
goto x962_err;
if (!x9_62_test_internal(out, NID_X9_62_prime192v1,
"3342403536405981729393488334694600415596881826869351677613",
"5735822328888155254683894997897571951568553642892029982342"))
goto x962_err;
if (!x9_62_test_internal(out, NID_X9_62_prime239v1,
"3086361431751678114926225473006680188549593787585317781474"
"62058306432176",
"3238135532097973577080787768312505059318910517550078427819"
"78505179448783"))
goto x962_err;
# ifndef OPENSSL_NO_EC2M
if (!x9_62_test_internal(out, NID_X9_62_c2tnb191v1,
"87194383164871543355722284926904419997237591535066528048",
"308992691965804947361541664549085895292153777025772063598"))
goto x962_err;
if (!x9_62_test_internal(out, NID_X9_62_c2tnb239v1,
"2159633321041961198501834003903461262881815148684178964245"
"5876922391552",
"1970303740007316867383349976549972270528498040721988191026"
"49413465737174"))
goto x962_err;
# endif
ret = 1;
x962_err:
if (!restore_rand())
ret = 0;
return ret;
}
int test_builtin(BIO *out)
{
EC_builtin_curve *curves = NULL;
size_t crv_len = 0, n = 0;
EC_KEY *eckey = NULL, *wrong_eckey = NULL;
EC_GROUP *group;
ECDSA_SIG *ecdsa_sig = NULL;
unsigned char digest[20], wrong_digest[20];
unsigned char *signature = NULL;
const unsigned char *sig_ptr;
unsigned char *sig_ptr2;
unsigned char *raw_buf = NULL;
unsigned int sig_len, degree, r_len, s_len, bn_len, buf_len;
int nid, ret = 0;
/* fill digest values with some random data */
if (RAND_pseudo_bytes(digest, 20) <= 0 ||
RAND_pseudo_bytes(wrong_digest, 20) <= 0) {
BIO_printf(out, "ERROR: unable to get random data\n");
goto builtin_err;
}
/*
* create and verify a ecdsa signature with every availble curve (with )
*/
BIO_printf(out, "\ntesting ECDSA_sign() and ECDSA_verify() "
"with some internal curves:\n");
/* get a list of all internal curves */
crv_len = EC_get_builtin_curves(NULL, 0);
curves = OPENSSL_malloc(sizeof(EC_builtin_curve) * crv_len);
if (curves == NULL) {
BIO_printf(out, "malloc error\n");
goto builtin_err;
}
if (!EC_get_builtin_curves(curves, crv_len)) {
BIO_printf(out, "unable to get internal curves\n");
goto builtin_err;
}
/* now create and verify a signature for every curve */
for (n = 0; n < crv_len; n++) {
unsigned char dirt, offset;
nid = curves[n].nid;
if (nid == NID_ipsec4)
continue;
/* create new ecdsa key (== EC_KEY) */
if ((eckey = EC_KEY_new()) == NULL)
goto builtin_err;
group = EC_GROUP_new_by_curve_name(nid);
if (group == NULL)
goto builtin_err;
if (EC_KEY_set_group(eckey, group) == 0)
goto builtin_err;
EC_GROUP_free(group);
degree = EC_GROUP_get_degree(EC_KEY_get0_group(eckey));
if (degree < 160)
/* drop the curve */
{
EC_KEY_free(eckey);
eckey = NULL;
continue;
}
BIO_printf(out, "%s: ", OBJ_nid2sn(nid));
/* create key */
if (!EC_KEY_generate_key(eckey)) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
/* create second key */
if ((wrong_eckey = EC_KEY_new()) == NULL)
goto builtin_err;
group = EC_GROUP_new_by_curve_name(nid);
if (group == NULL)
goto builtin_err;
if (EC_KEY_set_group(wrong_eckey, group) == 0)
goto builtin_err;
EC_GROUP_free(group);
if (!EC_KEY_generate_key(wrong_eckey)) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* check key */
if (!EC_KEY_check_key(eckey)) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* create signature */
sig_len = ECDSA_size(eckey);
if ((signature = OPENSSL_malloc(sig_len)) == NULL)
goto builtin_err;
if (!ECDSA_sign(0, digest, 20, signature, &sig_len, eckey)) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* verify signature */
if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) != 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* verify signature with the wrong key */
if (ECDSA_verify(0, digest, 20, signature, sig_len, wrong_eckey) == 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* wrong digest */
if (ECDSA_verify(0, wrong_digest, 20, signature, sig_len, eckey) == 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/* wrong length */
if (ECDSA_verify(0, digest, 20, signature, sig_len - 1, eckey) == 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
/*
* Modify a single byte of the signature: to ensure we don't garble
* the ASN1 structure, we read the raw signature and modify a byte in
* one of the bignums directly.
*/
sig_ptr = signature;
if ((ecdsa_sig = d2i_ECDSA_SIG(NULL, &sig_ptr, sig_len)) == NULL) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
/* Store the two BIGNUMs in raw_buf. */
r_len = BN_num_bytes(ecdsa_sig->r);
s_len = BN_num_bytes(ecdsa_sig->s);
bn_len = (degree + 7) / 8;
if ((r_len > bn_len) || (s_len > bn_len)) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
buf_len = 2 * bn_len;
if ((raw_buf = OPENSSL_malloc(buf_len)) == NULL)
goto builtin_err;
/* Pad the bignums with leading zeroes. */
memset(raw_buf, 0, buf_len);
BN_bn2bin(ecdsa_sig->r, raw_buf + bn_len - r_len);
BN_bn2bin(ecdsa_sig->s, raw_buf + buf_len - s_len);
/* Modify a single byte in the buffer. */
offset = raw_buf[10] % buf_len;
dirt = raw_buf[11] ? raw_buf[11] : 1;
raw_buf[offset] ^= dirt;
/* Now read the BIGNUMs back in from raw_buf. */
if ((BN_bin2bn(raw_buf, bn_len, ecdsa_sig->r) == NULL) ||
(BN_bin2bn(raw_buf + bn_len, bn_len, ecdsa_sig->s) == NULL))
goto builtin_err;
sig_ptr2 = signature;
sig_len = i2d_ECDSA_SIG(ecdsa_sig, &sig_ptr2);
if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) == 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
/*
* Sanity check: undo the modification and verify signature.
*/
raw_buf[offset] ^= dirt;
if ((BN_bin2bn(raw_buf, bn_len, ecdsa_sig->r) == NULL) ||
(BN_bin2bn(raw_buf + bn_len, bn_len, ecdsa_sig->s) == NULL))
goto builtin_err;
sig_ptr2 = signature;
sig_len = i2d_ECDSA_SIG(ecdsa_sig, &sig_ptr2);
if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) != 1) {
BIO_printf(out, " failed\n");
goto builtin_err;
}
BIO_printf(out, ".");
(void)BIO_flush(out);
BIO_printf(out, " ok\n");
/* cleanup */
/* clean bogus errors */
ERR_clear_error();
OPENSSL_free(signature);
signature = NULL;
EC_KEY_free(eckey);
eckey = NULL;
EC_KEY_free(wrong_eckey);
wrong_eckey = NULL;
ECDSA_SIG_free(ecdsa_sig);
ecdsa_sig = NULL;
OPENSSL_free(raw_buf);
raw_buf = NULL;
}
ret = 1;
builtin_err:
if (eckey)
EC_KEY_free(eckey);
if (wrong_eckey)
EC_KEY_free(wrong_eckey);
if (ecdsa_sig)
ECDSA_SIG_free(ecdsa_sig);
if (signature)
OPENSSL_free(signature);
if (raw_buf)
OPENSSL_free(raw_buf);
if (curves)
OPENSSL_free(curves);
return ret;
}
int main(void)
{
int ret = 1;
BIO *out;
out = BIO_new_fp(stdout, BIO_NOCLOSE);
/* enable memory leak checking unless explicitly disabled */
if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) &&
(0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off")))) {
CRYPTO_malloc_debug_init();
CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
} else {
/* OPENSSL_DEBUG_MEMORY=off */
CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
}
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
ERR_load_crypto_strings();
/* initialize the prng */
RAND_seed(rnd_seed, sizeof(rnd_seed));
/* the tests */
if (!x9_62_tests(out))
goto err;
if (!test_builtin(out))
goto err;
ret = 0;
err:
if (ret)
BIO_printf(out, "\nECDSA test failed\n");
else
BIO_printf(out, "\nECDSA test passed\n");
if (ret)
ERR_print_errors(out);
CRYPTO_cleanup_all_ex_data();
ERR_remove_thread_state(NULL);
ERR_free_strings();
CRYPTO_mem_leaks(out);
if (out != NULL)
BIO_free(out);
return ret;
}
#endif

67
openssl-1.0.2f/crypto/ecdsa/ecs_asn1.c Normal file
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/* crypto/ecdsa/ecs_asn1.c */
/* ====================================================================
* Copyright (c) 2000-2002 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
* 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 "ecs_locl.h"
#include <openssl/err.h>
#include <openssl/asn1t.h>
ASN1_SEQUENCE(ECDSA_SIG) = {
ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
} ASN1_SEQUENCE_END(ECDSA_SIG)
DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)

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107
openssl-1.0.2f/crypto/ecdsa/ecs_err.c Normal file
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/* crypto/ecdsa/ecs_err.c */
/* ====================================================================
* Copyright (c) 1999-2011 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/ecdsa.h>
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
# define ERR_FUNC(func) ERR_PACK(ERR_LIB_ECDSA,func,0)
# define ERR_REASON(reason) ERR_PACK(ERR_LIB_ECDSA,0,reason)
static ERR_STRING_DATA ECDSA_str_functs[] = {
{ERR_FUNC(ECDSA_F_ECDSA_CHECK), "ECDSA_CHECK"},
{ERR_FUNC(ECDSA_F_ECDSA_DATA_NEW_METHOD), "ECDSA_DATA_NEW_METHOD"},
{ERR_FUNC(ECDSA_F_ECDSA_DO_SIGN), "ECDSA_do_sign"},
{ERR_FUNC(ECDSA_F_ECDSA_DO_VERIFY), "ECDSA_do_verify"},
{ERR_FUNC(ECDSA_F_ECDSA_METHOD_NEW), "ECDSA_METHOD_new"},
{ERR_FUNC(ECDSA_F_ECDSA_SIGN_SETUP), "ECDSA_sign_setup"},
{0, NULL}
};
static ERR_STRING_DATA ECDSA_str_reasons[] = {
{ERR_REASON(ECDSA_R_BAD_SIGNATURE), "bad signature"},
{ERR_REASON(ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE),
"data too large for key size"},
{ERR_REASON(ECDSA_R_ERR_EC_LIB), "err ec lib"},
{ERR_REASON(ECDSA_R_MISSING_PARAMETERS), "missing parameters"},
{ERR_REASON(ECDSA_R_NEED_NEW_SETUP_VALUES), "need new setup values"},
{ERR_REASON(ECDSA_R_NON_FIPS_METHOD), "non fips method"},
{ERR_REASON(ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED),
"random number generation failed"},
{ERR_REASON(ECDSA_R_SIGNATURE_MALLOC_FAILED), "signature malloc failed"},
{0, NULL}
};
#endif
void ERR_load_ECDSA_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(ECDSA_str_functs[0].error) == NULL) {
ERR_load_strings(0, ECDSA_str_functs);
ERR_load_strings(0, ECDSA_str_reasons);
}
#endif
}

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354
openssl-1.0.2f/crypto/ecdsa/ecs_lib.c Normal file
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/* crypto/ecdsa/ecs_lib.c */
/* ====================================================================
* Copyright (c) 1998-2005 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
* 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 <string.h>
#include "ecs_locl.h"
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
#include <openssl/err.h>
#include <openssl/bn.h>
#ifdef OPENSSL_FIPS
# include <openssl/fips.h>
#endif
const char ECDSA_version[] = "ECDSA" OPENSSL_VERSION_PTEXT;
static const ECDSA_METHOD *default_ECDSA_method = NULL;
static void *ecdsa_data_new(void);
static void *ecdsa_data_dup(void *);
static void ecdsa_data_free(void *);
void ECDSA_set_default_method(const ECDSA_METHOD *meth)
{
default_ECDSA_method = meth;
}
const ECDSA_METHOD *ECDSA_get_default_method(void)
{
if (!default_ECDSA_method) {
#ifdef OPENSSL_FIPS
if (FIPS_mode())
return FIPS_ecdsa_openssl();
else
return ECDSA_OpenSSL();
#else
default_ECDSA_method = ECDSA_OpenSSL();
#endif
}
return default_ECDSA_method;
}
int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth)
{
ECDSA_DATA *ecdsa;
ecdsa = ecdsa_check(eckey);
if (ecdsa == NULL)
return 0;
#ifndef OPENSSL_NO_ENGINE
if (ecdsa->engine) {
ENGINE_finish(ecdsa->engine);
ecdsa->engine = NULL;
}
#endif
ecdsa->meth = meth;
return 1;
}
static ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine)
{
ECDSA_DATA *ret;
ret = (ECDSA_DATA *)OPENSSL_malloc(sizeof(ECDSA_DATA));
if (ret == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return (NULL);
}
ret->init = NULL;
ret->meth = ECDSA_get_default_method();
ret->engine = engine;
#ifndef OPENSSL_NO_ENGINE
if (!ret->engine)
ret->engine = ENGINE_get_default_ECDSA();
if (ret->engine) {
ret->meth = ENGINE_get_ECDSA(ret->engine);
if (!ret->meth) {
ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_ENGINE_LIB);
ENGINE_finish(ret->engine);
OPENSSL_free(ret);
return NULL;
}
}
#endif
ret->flags = ret->meth->flags;
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data);
#if 0
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data);
OPENSSL_free(ret);
ret = NULL;
}
#endif
return (ret);
}
static void *ecdsa_data_new(void)
{
return (void *)ECDSA_DATA_new_method(NULL);
}
static void *ecdsa_data_dup(void *data)
{
ECDSA_DATA *r = (ECDSA_DATA *)data;
/* XXX: dummy operation */
if (r == NULL)
return NULL;
return ecdsa_data_new();
}
static void ecdsa_data_free(void *data)
{
ECDSA_DATA *r = (ECDSA_DATA *)data;
#ifndef OPENSSL_NO_ENGINE
if (r->engine)
ENGINE_finish(r->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, r, &r->ex_data);
OPENSSL_cleanse((void *)r, sizeof(ECDSA_DATA));
OPENSSL_free(r);
}
ECDSA_DATA *ecdsa_check(EC_KEY *key)
{
ECDSA_DATA *ecdsa_data;
void *data = EC_KEY_get_key_method_data(key, ecdsa_data_dup,
ecdsa_data_free, ecdsa_data_free);
if (data == NULL) {
ecdsa_data = (ECDSA_DATA *)ecdsa_data_new();
if (ecdsa_data == NULL)
return NULL;
data = EC_KEY_insert_key_method_data(key, (void *)ecdsa_data,
ecdsa_data_dup, ecdsa_data_free,
ecdsa_data_free);
if (data != NULL) {
/*
* Another thread raced us to install the key_method data and
* won.
*/
ecdsa_data_free(ecdsa_data);
ecdsa_data = (ECDSA_DATA *)data;
}
} else
ecdsa_data = (ECDSA_DATA *)data;
#ifdef OPENSSL_FIPS
if (FIPS_mode() && !(ecdsa_data->flags & ECDSA_FLAG_FIPS_METHOD)
&& !(EC_KEY_get_flags(key) & EC_FLAG_NON_FIPS_ALLOW)) {
ECDSAerr(ECDSA_F_ECDSA_CHECK, ECDSA_R_NON_FIPS_METHOD);
return NULL;
}
#endif
return ecdsa_data;
}
int ECDSA_size(const EC_KEY *r)
{
int ret, i;
ASN1_INTEGER bs;
BIGNUM *order = NULL;
unsigned char buf[4];
const EC_GROUP *group;
if (r == NULL)
return 0;
group = EC_KEY_get0_group(r);
if (group == NULL)
return 0;
if ((order = BN_new()) == NULL)
return 0;
if (!EC_GROUP_get_order(group, order, NULL)) {
BN_clear_free(order);
return 0;
}
i = BN_num_bits(order);
bs.length = (i + 7) / 8;
bs.data = buf;
bs.type = V_ASN1_INTEGER;
/* If the top bit is set the asn1 encoding is 1 larger. */
buf[0] = 0xff;
i = i2d_ASN1_INTEGER(&bs, NULL);
i += i; /* r and s */
ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE);
BN_clear_free(order);
return (ret);
}
int ECDSA_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_ECDSA, argl, argp,
new_func, dup_func, free_func);
}
int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg)
{
ECDSA_DATA *ecdsa;
ecdsa = ecdsa_check(d);
if (ecdsa == NULL)
return 0;
return (CRYPTO_set_ex_data(&ecdsa->ex_data, idx, arg));
}
void *ECDSA_get_ex_data(EC_KEY *d, int idx)
{
ECDSA_DATA *ecdsa;
ecdsa = ecdsa_check(d);
if (ecdsa == NULL)
return NULL;
return (CRYPTO_get_ex_data(&ecdsa->ex_data, idx));
}
ECDSA_METHOD *ECDSA_METHOD_new(const ECDSA_METHOD *ecdsa_meth)
{
ECDSA_METHOD *ret;
ret = OPENSSL_malloc(sizeof(ECDSA_METHOD));
if (ret == NULL) {
ECDSAerr(ECDSA_F_ECDSA_METHOD_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (ecdsa_meth)
*ret = *ecdsa_meth;
else {
ret->ecdsa_sign_setup = 0;
ret->ecdsa_do_sign = 0;
ret->ecdsa_do_verify = 0;
ret->name = NULL;
ret->flags = 0;
}
ret->flags |= ECDSA_METHOD_FLAG_ALLOCATED;
return ret;
}
void ECDSA_METHOD_set_sign(ECDSA_METHOD *ecdsa_method,
ECDSA_SIG *(*ecdsa_do_sign) (const unsigned char
*dgst, int dgst_len,
const BIGNUM *inv,
const BIGNUM *rp,
EC_KEY *eckey))
{
ecdsa_method->ecdsa_do_sign = ecdsa_do_sign;
}
void ECDSA_METHOD_set_sign_setup(ECDSA_METHOD *ecdsa_method,
int (*ecdsa_sign_setup) (EC_KEY *eckey,
BN_CTX *ctx,
BIGNUM **kinv,
BIGNUM **r))
{
ecdsa_method->ecdsa_sign_setup = ecdsa_sign_setup;
}
void ECDSA_METHOD_set_verify(ECDSA_METHOD *ecdsa_method,
int (*ecdsa_do_verify) (const unsigned char
*dgst, int dgst_len,
const ECDSA_SIG *sig,
EC_KEY *eckey))
{
ecdsa_method->ecdsa_do_verify = ecdsa_do_verify;
}
void ECDSA_METHOD_set_flags(ECDSA_METHOD *ecdsa_method, int flags)
{
ecdsa_method->flags = flags | ECDSA_METHOD_FLAG_ALLOCATED;
}
void ECDSA_METHOD_set_name(ECDSA_METHOD *ecdsa_method, char *name)
{
ecdsa_method->name = name;
}
void ECDSA_METHOD_free(ECDSA_METHOD *ecdsa_method)
{
if (ecdsa_method->flags & ECDSA_METHOD_FLAG_ALLOCATED)
OPENSSL_free(ecdsa_method);
}
void ECDSA_METHOD_set_app_data(ECDSA_METHOD *ecdsa_method, void *app)
{
ecdsa_method->app_data = app;
}
void *ECDSA_METHOD_get_app_data(ECDSA_METHOD *ecdsa_method)
{
return ecdsa_method->app_data;
}

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openssl-1.0.2f/crypto/ecdsa/ecs_lib.o Normal file
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openssl-1.0.2f/crypto/ecdsa/ecs_locl.h Normal file
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/* crypto/ecdsa/ecs_locl.h */
/*
* Written by Nils Larsch for the OpenSSL project
*/
/* ====================================================================
* 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).
*
*/
#ifndef HEADER_ECS_LOCL_H
# define HEADER_ECS_LOCL_H
# include <openssl/ecdsa.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ecdsa_method {
const char *name;
ECDSA_SIG *(*ecdsa_do_sign) (const unsigned char *dgst, int dgst_len,
const BIGNUM *inv, const BIGNUM *rp,
EC_KEY *eckey);
int (*ecdsa_sign_setup) (EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,
BIGNUM **r);
int (*ecdsa_do_verify) (const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey);
# if 0
int (*init) (EC_KEY *eckey);
int (*finish) (EC_KEY *eckey);
# endif
int flags;
void *app_data;
};
/* The ECDSA_METHOD was allocated and can be freed */
# define ECDSA_METHOD_FLAG_ALLOCATED 0x2
/*
* If this flag is set the ECDSA 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 ECDSA_FLAG_FIPS_METHOD 0x1
typedef struct ecdsa_data_st {
/* EC_KEY_METH_DATA part */
int (*init) (EC_KEY *);
/* method (ECDSA) specific part */
ENGINE *engine;
int flags;
const ECDSA_METHOD *meth;
CRYPTO_EX_DATA ex_data;
} ECDSA_DATA;
/** ecdsa_check
* checks whether ECKEY->meth_data is a pointer to a ECDSA_DATA structure
* and if not it removes the old meth_data and creates a ECDSA_DATA structure.
* \param eckey pointer to a EC_KEY object
* \return pointer to a ECDSA_DATA structure
*/
ECDSA_DATA *ecdsa_check(EC_KEY *eckey);
#ifdef __cplusplus
}
#endif
#endif /* HEADER_ECS_LOCL_H */

464
openssl-1.0.2f/crypto/ecdsa/ecs_ossl.c Normal file
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/* crypto/ecdsa/ecs_ossl.c */
/*
* Written by Nils Larsch for the OpenSSL project
*/
/* ====================================================================
* Copyright (c) 1998-2004 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 "ecs_locl.h"
#include <openssl/err.h>
#include <openssl/obj_mac.h>
#include <openssl/bn.h>
static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dlen,
const BIGNUM *, const BIGNUM *,
EC_KEY *eckey);
static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
BIGNUM **rp);
static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey);
static ECDSA_METHOD openssl_ecdsa_meth = {
"OpenSSL ECDSA method",
ecdsa_do_sign,
ecdsa_sign_setup,
ecdsa_do_verify,
#if 0
NULL, /* init */
NULL, /* finish */
#endif
0, /* flags */
NULL /* app_data */
};
const ECDSA_METHOD *ECDSA_OpenSSL(void)
{
return &openssl_ecdsa_meth;
}
static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
BIGNUM **rp)
{
BN_CTX *ctx = NULL;
BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL;
EC_POINT *tmp_point = NULL;
const EC_GROUP *group;
int ret = 0;
if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
if (ctx_in == NULL) {
if ((ctx = BN_CTX_new()) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
return 0;
}
} else
ctx = ctx_in;
k = BN_new(); /* this value is later returned in *kinvp */
r = BN_new(); /* this value is later returned in *rp */
order = BN_new();
X = BN_new();
if (!k || !r || !order || !X) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
goto err;
}
if ((tmp_point = EC_POINT_new(group)) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
if (!EC_GROUP_get_order(group, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
do {
/* get random k */
do
if (!BN_rand_range(k, order)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
goto err;
}
while (BN_is_zero(k)) ;
/*
* We do not want timing information to leak the length of k, so we
* compute G*k using an equivalent scalar of fixed bit-length.
*/
if (!BN_add(k, k, order))
goto err;
if (BN_num_bits(k) <= BN_num_bits(order))
if (!BN_add(k, k, order))
goto err;
/* compute r the x-coordinate of generator * k */
if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
NID_X9_62_prime_field) {
if (!EC_POINT_get_affine_coordinates_GFp
(group, tmp_point, X, NULL, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
}
#ifndef OPENSSL_NO_EC2M
else { /* NID_X9_62_characteristic_two_field */
if (!EC_POINT_get_affine_coordinates_GF2m(group,
tmp_point, X, NULL,
ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
goto err;
}
}
#endif
if (!BN_nnmod(r, X, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
}
}
while (BN_is_zero(r));
/* compute the inverse of k */
if (EC_GROUP_get_mont_data(group) != NULL) {
/*
* We want inverse in constant time, therefore we utilize the fact
* order must be prime and use Fermats Little Theorem instead.
*/
if (!BN_set_word(X, 2)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
}
if (!BN_mod_sub(X, order, X, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
}
BN_set_flags(X, BN_FLG_CONSTTIME);
if (!BN_mod_exp_mont_consttime
(k, k, X, order, ctx, EC_GROUP_get_mont_data(group))) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
}
} else {
if (!BN_mod_inverse(k, k, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
goto err;
}
}
/* clear old values if necessary */
if (*rp != NULL)
BN_clear_free(*rp);
if (*kinvp != NULL)
BN_clear_free(*kinvp);
/* save the pre-computed values */
*rp = r;
*kinvp = k;
ret = 1;
err:
if (!ret) {
if (k != NULL)
BN_clear_free(k);
if (r != NULL)
BN_clear_free(r);
}
if (ctx_in == NULL)
BN_CTX_free(ctx);
if (order != NULL)
BN_free(order);
if (tmp_point != NULL)
EC_POINT_free(tmp_point);
if (X)
BN_clear_free(X);
return (ret);
}
static ECDSA_SIG *ecdsa_do_sign(const unsigned char *dgst, int dgst_len,
const BIGNUM *in_kinv, const BIGNUM *in_r,
EC_KEY *eckey)
{
int ok = 0, i;
BIGNUM *kinv = NULL, *s, *m = NULL, *tmp = NULL, *order = NULL;
const BIGNUM *ckinv;
BN_CTX *ctx = NULL;
const EC_GROUP *group;
ECDSA_SIG *ret;
ECDSA_DATA *ecdsa;
const BIGNUM *priv_key;
ecdsa = ecdsa_check(eckey);
group = EC_KEY_get0_group(eckey);
priv_key = EC_KEY_get0_private_key(eckey);
if (group == NULL || priv_key == NULL || ecdsa == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_PASSED_NULL_PARAMETER);
return NULL;
}
ret = ECDSA_SIG_new();
if (!ret) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
return NULL;
}
s = ret->s;
if ((ctx = BN_CTX_new()) == NULL || (order = BN_new()) == NULL ||
(tmp = BN_new()) == NULL || (m = BN_new()) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_GROUP_get_order(group, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_EC_LIB);
goto err;
}
i = BN_num_bits(order);
/*
* Need to truncate digest if it is too long: first truncate whole bytes.
*/
if (8 * dgst_len > i)
dgst_len = (i + 7) / 8;
if (!BN_bin2bn(dgst, dgst_len, m)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
/* If still too long truncate remaining bits with a shift */
if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7))) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
do {
if (in_kinv == NULL || in_r == NULL) {
if (!ECDSA_sign_setup(eckey, ctx, &kinv, &ret->r)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_ECDSA_LIB);
goto err;
}
ckinv = kinv;
} else {
ckinv = in_kinv;
if (BN_copy(ret->r, in_r) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
}
if (!BN_mod_mul(tmp, priv_key, ret->r, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
if (!BN_mod_add_quick(s, tmp, m, order)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
if (!BN_mod_mul(s, s, ckinv, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN, ERR_R_BN_LIB);
goto err;
}
if (BN_is_zero(s)) {
/*
* if kinv and r have been supplied by the caller don't to
* generate new kinv and r values
*/
if (in_kinv != NULL && in_r != NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_SIGN,
ECDSA_R_NEED_NEW_SETUP_VALUES);
goto err;
}
} else
/* s != 0 => we have a valid signature */
break;
}
while (1);
ok = 1;
err:
if (!ok) {
ECDSA_SIG_free(ret);
ret = NULL;
}
if (ctx)
BN_CTX_free(ctx);
if (m)
BN_clear_free(m);
if (tmp)
BN_clear_free(tmp);
if (order)
BN_free(order);
if (kinv)
BN_clear_free(kinv);
return ret;
}
static int ecdsa_do_verify(const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey)
{
int ret = -1, i;
BN_CTX *ctx;
BIGNUM *order, *u1, *u2, *m, *X;
EC_POINT *point = NULL;
const EC_GROUP *group;
const EC_POINT *pub_key;
/* check input values */
if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL ||
(pub_key = EC_KEY_get0_public_key(eckey)) == NULL || sig == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_MISSING_PARAMETERS);
return -1;
}
ctx = BN_CTX_new();
if (!ctx) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE);
return -1;
}
BN_CTX_start(ctx);
order = BN_CTX_get(ctx);
u1 = BN_CTX_get(ctx);
u2 = BN_CTX_get(ctx);
m = BN_CTX_get(ctx);
X = BN_CTX_get(ctx);
if (!X) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
if (!EC_GROUP_get_order(group, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
goto err;
}
if (BN_is_zero(sig->r) || BN_is_negative(sig->r) ||
BN_ucmp(sig->r, order) >= 0 || BN_is_zero(sig->s) ||
BN_is_negative(sig->s) || BN_ucmp(sig->s, order) >= 0) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_BAD_SIGNATURE);
ret = 0; /* signature is invalid */
goto err;
}
/* calculate tmp1 = inv(S) mod order */
if (!BN_mod_inverse(u2, sig->s, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
/* digest -> m */
i = BN_num_bits(order);
/*
* Need to truncate digest if it is too long: first truncate whole bytes.
*/
if (8 * dgst_len > i)
dgst_len = (i + 7) / 8;
if (!BN_bin2bn(dgst, dgst_len, m)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
/* If still too long truncate remaining bits with a shift */
if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7))) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
/* u1 = m * tmp mod order */
if (!BN_mod_mul(u1, m, u2, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
/* u2 = r * w mod q */
if (!BN_mod_mul(u2, sig->r, u2, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
if ((point = EC_POINT_new(group)) == NULL) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_POINT_mul(group, point, u1, pub_key, u2, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
goto err;
}
if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
NID_X9_62_prime_field) {
if (!EC_POINT_get_affine_coordinates_GFp(group, point, X, NULL, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
goto err;
}
}
#ifndef OPENSSL_NO_EC2M
else { /* NID_X9_62_characteristic_two_field */
if (!EC_POINT_get_affine_coordinates_GF2m(group, point, X, NULL, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
goto err;
}
}
#endif
if (!BN_nnmod(u1, X, order, ctx)) {
ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
goto err;
}
/* if the signature is correct u1 is equal to sig->r */
ret = (BN_ucmp(u1, sig->r) == 0);
err:
BN_CTX_end(ctx);
BN_CTX_free(ctx);
if (point)
EC_POINT_free(point);
return ret;
}

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openssl-1.0.2f/crypto/ecdsa/ecs_sign.c Normal file
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/* crypto/ecdsa/ecdsa_sign.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).
*
*/
#include "ecs_locl.h"
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
#include <openssl/rand.h>
ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
{
return ECDSA_do_sign_ex(dgst, dlen, NULL, NULL, eckey);
}
ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen,
const BIGNUM *kinv, const BIGNUM *rp,
EC_KEY *eckey)
{
ECDSA_DATA *ecdsa = ecdsa_check(eckey);
if (ecdsa == NULL)
return NULL;
return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey);
}
int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char
*sig, unsigned int *siglen, EC_KEY *eckey)
{
return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey);
}
int ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen, unsigned char
*sig, unsigned int *siglen, const BIGNUM *kinv,
const BIGNUM *r, EC_KEY *eckey)
{
ECDSA_SIG *s;
RAND_seed(dgst, dlen);
s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey);
if (s == NULL) {
*siglen = 0;
return 0;
}
*siglen = i2d_ECDSA_SIG(s, &sig);
ECDSA_SIG_free(s);
return 1;
}
int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
BIGNUM **rp)
{
ECDSA_DATA *ecdsa = ecdsa_check(eckey);
if (ecdsa == NULL)
return 0;
return ecdsa->meth->ecdsa_sign_setup(eckey, ctx_in, kinvp, rp);
}

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112
openssl-1.0.2f/crypto/ecdsa/ecs_vrf.c Normal file
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/* crypto/ecdsa/ecdsa_vrf.c */
/*
* Written by Nils Larsch for the OpenSSL project
*/
/* ====================================================================
* 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).
*
*/
#include "ecs_locl.h"
#include <string.h>
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
/*-
* returns
* 1: correct signature
* 0: incorrect signature
* -1: error
*/
int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
const ECDSA_SIG *sig, EC_KEY *eckey)
{
ECDSA_DATA *ecdsa = ecdsa_check(eckey);
if (ecdsa == NULL)
return 0;
return ecdsa->meth->ecdsa_do_verify(dgst, dgst_len, sig, eckey);
}
/*-
* returns
* 1: correct signature
* 0: incorrect signature
* -1: error
*/
int ECDSA_verify(int type, const unsigned char *dgst, int dgst_len,
const unsigned char *sigbuf, int sig_len, EC_KEY *eckey)
{
ECDSA_SIG *s;
const unsigned char *p = sigbuf;
unsigned char *der = NULL;
int derlen = -1;
int ret = -1;
s = ECDSA_SIG_new();
if (s == NULL)
return (ret);
if (d2i_ECDSA_SIG(&s, &p, sig_len) == NULL)
goto err;
/* Ensure signature uses DER and doesn't have trailing garbage */
derlen = i2d_ECDSA_SIG(s, &der);
if (derlen != sig_len || memcmp(sigbuf, der, derlen))
goto err;
ret = ECDSA_do_verify(dgst, dgst_len, s, eckey);
err:
if (derlen > 0) {
OPENSSL_cleanse(der, derlen);
OPENSSL_free(der);
}
ECDSA_SIG_free(s);
return (ret);
}

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openssl-1.0.2f/crypto/ecdsa/lib Normal file
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