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first commit, SM2-DSA only

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Zhi Guan
2014-12-01 10:40:26 +08:00
commit 57954c4567
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121
crypto/ecdh/Makefile Normal file
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#
# crypto/ecdh/Makefile
#
DIR= ecdh
TOP= ../..
CC= cc
INCLUDES= -I.. -I$(TOP) -I../../include
CFLAG=-g -Wall
MAKEFILE= Makefile
AR= ar r
CFLAGS= $(INCLUDES) $(CFLAG)
GENERAL=Makefile
TEST=ecdhtest.c
APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC= ech_lib.c ech_ossl.c ech_key.c ech_err.c
LIBOBJ= ech_lib.o ech_ossl.o ech_key.o ech_err.o
SRC= $(LIBSRC)
EXHEADER= ecdh.h
HEADER= ech_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) $(SRC)>fluff
depend:
@[ -n "$(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.
ech_err.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ech_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
ech_err.o: ../../include/openssl/ec.h ../../include/openssl/ecdh.h
ech_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
ech_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
ech_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/safestack.h
ech_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ech_err.o: ech_err.c
ech_key.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ech_key.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
ech_key.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ech_key.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
ech_key.o: ../../include/openssl/engine.h ../../include/openssl/evp.h
ech_key.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ech_key.o: ../../include/openssl/objects.h ../../include/openssl/opensslconf.h
ech_key.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ech_key.o: ../../include/openssl/pkcs7.h ../../include/openssl/safestack.h
ech_key.o: ../../include/openssl/sha.h ../../include/openssl/stack.h
ech_key.o: ../../include/openssl/symhacks.h ../../include/openssl/x509.h
ech_key.o: ../../include/openssl/x509_vfy.h ech_key.c ech_locl.h
ech_lib.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
ech_lib.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
ech_lib.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ech_lib.o: ../../include/openssl/ecdh.h ../../include/openssl/ecdsa.h
ech_lib.o: ../../include/openssl/engine.h ../../include/openssl/err.h
ech_lib.o: ../../include/openssl/evp.h ../../include/openssl/lhash.h
ech_lib.o: ../../include/openssl/obj_mac.h ../../include/openssl/objects.h
ech_lib.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
ech_lib.o: ../../include/openssl/ossl_typ.h ../../include/openssl/pkcs7.h
ech_lib.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
ech_lib.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ech_lib.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
ech_lib.o: ech_lib.c ech_locl.h
ech_ossl.o: ../../e_os.h ../../include/openssl/asn1.h
ech_ossl.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
ech_ossl.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
ech_ossl.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
ech_ossl.o: ../../include/openssl/ecdh.h ../../include/openssl/err.h
ech_ossl.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
ech_ossl.o: ../../include/openssl/opensslconf.h
ech_ossl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
ech_ossl.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
ech_ossl.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ech_ossl.o: ../cryptlib.h ech_locl.h ech_ossl.c

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crypto/ecdh/ecdh.h Normal file
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/* crypto/ecdh/ecdh.h */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* 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).
*
*/
#ifndef HEADER_ECDH_H
#define HEADER_ECDH_H
#include <openssl/opensslconf.h>
#ifdef OPENSSL_NO_ECDH
#error ECDH 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
const ECDH_METHOD *ECDH_OpenSSL(void);
void ECDH_set_default_method(const ECDH_METHOD *);
const ECDH_METHOD *ECDH_get_default_method(void);
int ECDH_set_method(EC_KEY *, const ECDH_METHOD *);
int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh,
void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
*new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg);
void *ECDH_get_ex_data(EC_KEY *d, int idx);
/* 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_ECDH_strings(void);
/* Error codes for the ECDH functions. */
/* Function codes. */
#define ECDH_F_ECDH_COMPUTE_KEY 100
#define ECDH_F_ECDH_DATA_NEW_METHOD 101
/* Reason codes. */
#define ECDH_R_KDF_FAILED 102
#define ECDH_R_NO_PRIVATE_VALUE 100
#define ECDH_R_POINT_ARITHMETIC_FAILURE 101
#ifdef __cplusplus
}
#endif
#endif

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crypto/ecdh/ecdhtest.c Normal file
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/* crypto/ecdh/ecdhtest.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 1998-2003 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 <stdlib.h>
#include <string.h>
#include "../e_os.h"
#include <openssl/opensslconf.h> /* for OPENSSL_NO_ECDH */
#include <openssl/crypto.h>
#include <openssl/bio.h>
#include <openssl/bn.h>
#include <openssl/objects.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
#include <openssl/err.h>
#ifdef OPENSSL_NO_ECDH
int main(int argc, char *argv[])
{
printf("No ECDH support\n");
return(0);
}
#else
#include <openssl/ec.h>
#include <openssl/ecdh.h>
#ifdef OPENSSL_SYS_WIN16
#define MS_CALLBACK _far _loadds
#else
#define MS_CALLBACK
#endif
#if 0
static void MS_CALLBACK cb(int p, int n, void *arg);
#endif
static const char rnd_seed[] = "string to make the random number generator think it has entropy";
static const int KDF1_SHA1_len = 20;
static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
{
#ifndef OPENSSL_NO_SHA
if (*outlen < SHA_DIGEST_LENGTH)
return NULL;
else
*outlen = SHA_DIGEST_LENGTH;
return SHA1(in, inlen, out);
#else
return NULL;
#endif
}
static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out)
{
EC_KEY *a=NULL;
EC_KEY *b=NULL;
BIGNUM *x_a=NULL, *y_a=NULL,
*x_b=NULL, *y_b=NULL;
char buf[12];
unsigned char *abuf=NULL,*bbuf=NULL;
int i,alen,blen,aout,bout,ret=0;
const EC_GROUP *group;
a = EC_KEY_new_by_curve_name(nid);
b = EC_KEY_new_by_curve_name(nid);
if (a == NULL || b == NULL)
goto err;
group = EC_KEY_get0_group(a);
if ((x_a=BN_new()) == NULL) goto err;
if ((y_a=BN_new()) == NULL) goto err;
if ((x_b=BN_new()) == NULL) goto err;
if ((y_b=BN_new()) == NULL) goto err;
BIO_puts(out,"Testing key generation with ");
BIO_puts(out,text);
#ifdef NOISY
BIO_puts(out,"\n");
#else
(void)BIO_flush(out);
#endif
if (!EC_KEY_generate_key(a)) 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,
EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
}
else
{
if (!EC_POINT_get_affine_coordinates_GF2m(group,
EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
}
#ifdef NOISY
BIO_puts(out," pri 1=");
BN_print(out,a->priv_key);
BIO_puts(out,"\n pub 1=");
BN_print(out,x_a);
BIO_puts(out,",");
BN_print(out,y_a);
BIO_puts(out,"\n");
#else
BIO_printf(out," .");
(void)BIO_flush(out);
#endif
if (!EC_KEY_generate_key(b)) 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,
EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
}
else
{
if (!EC_POINT_get_affine_coordinates_GF2m(group,
EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
}
#ifdef NOISY
BIO_puts(out," pri 2=");
BN_print(out,b->priv_key);
BIO_puts(out,"\n pub 2=");
BN_print(out,x_b);
BIO_puts(out,",");
BN_print(out,y_b);
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
(void)BIO_flush(out);
#endif
alen=KDF1_SHA1_len;
abuf=(unsigned char *)OPENSSL_malloc(alen);
aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),a,KDF1_SHA1);
#ifdef NOISY
BIO_puts(out," key1 =");
for (i=0; i<aout; i++)
{
sprintf(buf,"%02X",abuf[i]);
BIO_puts(out,buf);
}
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
(void)BIO_flush(out);
#endif
blen=KDF1_SHA1_len;
bbuf=(unsigned char *)OPENSSL_malloc(blen);
bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),b,KDF1_SHA1);
#ifdef NOISY
BIO_puts(out," key2 =");
for (i=0; i<bout; i++)
{
sprintf(buf,"%02X",bbuf[i]);
BIO_puts(out,buf);
}
BIO_puts(out,"\n");
#else
BIO_printf(out,".");
(void)BIO_flush(out);
#endif
if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
{
#ifndef NOISY
BIO_printf(out, " failed\n\n");
BIO_printf(out, "key a:\n");
BIO_printf(out, "private key: ");
BN_print(out, EC_KEY_get0_private_key(a));
BIO_printf(out, "\n");
BIO_printf(out, "public key (x,y): ");
BN_print(out, x_a);
BIO_printf(out, ",");
BN_print(out, y_a);
BIO_printf(out, "\nkey b:\n");
BIO_printf(out, "private key: ");
BN_print(out, EC_KEY_get0_private_key(b));
BIO_printf(out, "\n");
BIO_printf(out, "public key (x,y): ");
BN_print(out, x_b);
BIO_printf(out, ",");
BN_print(out, y_b);
BIO_printf(out, "\n");
BIO_printf(out, "generated key a: ");
for (i=0; i<bout; i++)
{
sprintf(buf, "%02X", bbuf[i]);
BIO_puts(out, buf);
}
BIO_printf(out, "\n");
BIO_printf(out, "generated key b: ");
for (i=0; i<aout; i++)
{
sprintf(buf, "%02X", abuf[i]);
BIO_puts(out,buf);
}
BIO_printf(out, "\n");
#endif
fprintf(stderr,"Error in ECDH routines\n");
ret=0;
}
else
{
#ifndef NOISY
BIO_printf(out, " ok\n");
#endif
ret=1;
}
err:
ERR_print_errors_fp(stderr);
if (abuf != NULL) OPENSSL_free(abuf);
if (bbuf != NULL) OPENSSL_free(bbuf);
if (x_a) BN_free(x_a);
if (y_a) BN_free(y_a);
if (x_b) BN_free(x_b);
if (y_b) BN_free(y_b);
if (b) EC_KEY_free(b);
if (a) EC_KEY_free(a);
return(ret);
}
int main(int argc, char *argv[])
{
BN_CTX *ctx=NULL;
int ret=1;
BIO *out;
CRYPTO_malloc_debug_init();
CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
#ifdef OPENSSL_SYS_WIN32
CRYPTO_malloc_init();
#endif
RAND_seed(rnd_seed, sizeof rnd_seed);
out=BIO_new(BIO_s_file());
if (out == NULL) EXIT(1);
BIO_set_fp(out,stdout,BIO_NOCLOSE);
if ((ctx=BN_CTX_new()) == NULL) goto err;
/* NIST PRIME CURVES TESTS */
if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;
if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;
if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;
if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;
if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;
/* NIST BINARY CURVES TESTS */
if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;
if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;
ret = 0;
err:
ERR_print_errors_fp(stderr);
if (ctx) BN_CTX_free(ctx);
BIO_free(out);
CRYPTO_cleanup_all_ex_data();
ERR_remove_thread_state(NULL);
CRYPTO_mem_leaks_fp(stderr);
EXIT(ret);
return(ret);
}
#if 0
static void MS_CALLBACK cb(int p, int n, void *arg)
{
char c='*';
if (p == 0) c='.';
if (p == 1) c='+';
if (p == 2) c='*';
if (p == 3) c='\n';
BIO_write((BIO *)arg,&c,1);
(void)BIO_flush((BIO *)arg);
#ifdef LINT
p=n;
#endif
}
#endif
#endif

98
crypto/ecdh/ech_err.c Normal file
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/* crypto/ecdh/ech_err.c */
/* ====================================================================
* Copyright (c) 1999-2006 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).
*
*/
/* 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/ecdh.h>
/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR
#define ERR_FUNC(func) ERR_PACK(ERR_LIB_ECDH,func,0)
#define ERR_REASON(reason) ERR_PACK(ERR_LIB_ECDH,0,reason)
static ERR_STRING_DATA ECDH_str_functs[]=
{
{ERR_FUNC(ECDH_F_ECDH_COMPUTE_KEY), "ECDH_compute_key"},
{ERR_FUNC(ECDH_F_ECDH_DATA_NEW_METHOD), "ECDH_DATA_new_method"},
{0,NULL}
};
static ERR_STRING_DATA ECDH_str_reasons[]=
{
{ERR_REASON(ECDH_R_KDF_FAILED) ,"KDF failed"},
{ERR_REASON(ECDH_R_NO_PRIVATE_VALUE) ,"no private value"},
{ERR_REASON(ECDH_R_POINT_ARITHMETIC_FAILURE),"point arithmetic failure"},
{0,NULL}
};
#endif
void ERR_load_ECDH_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_func_error_string(ECDH_str_functs[0].error) == NULL)
{
ERR_load_strings(0,ECDH_str_functs);
ERR_load_strings(0,ECDH_str_reasons);
}
#endif
}

83
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/* crypto/ecdh/ecdh_key.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 1998-2003 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 "ech_locl.h"
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
EC_KEY *eckey,
void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen))
{
ECDH_DATA *ecdh = ecdh_check(eckey);
if (ecdh == NULL)
return 0;
return ecdh->meth->compute_key(out, outlen, pub_key, eckey, KDF);
}

246
crypto/ecdh/ech_lib.c Normal file
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/* crypto/ecdh/ech_lib.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 1998-2003 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 "ech_locl.h"
#include <string.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#include <openssl/err.h>
const char ECDH_version[]="ECDH" OPENSSL_VERSION_PTEXT;
static const ECDH_METHOD *default_ECDH_method = NULL;
static void *ecdh_data_new(void);
static void *ecdh_data_dup(void *);
static void ecdh_data_free(void *);
void ECDH_set_default_method(const ECDH_METHOD *meth)
{
default_ECDH_method = meth;
}
const ECDH_METHOD *ECDH_get_default_method(void)
{
if(!default_ECDH_method)
default_ECDH_method = ECDH_OpenSSL();
return default_ECDH_method;
}
int ECDH_set_method(EC_KEY *eckey, const ECDH_METHOD *meth)
{
ECDH_DATA *ecdh;
ecdh = ecdh_check(eckey);
if (ecdh == NULL)
return 0;
#if 0
mtmp = ecdh->meth;
if (mtmp->finish)
mtmp->finish(eckey);
#endif
#ifndef OPENSSL_NO_ENGINE
if (ecdh->engine)
{
ENGINE_finish(ecdh->engine);
ecdh->engine = NULL;
}
#endif
ecdh->meth = meth;
#if 0
if (meth->init)
meth->init(eckey);
#endif
return 1;
}
static ECDH_DATA *ECDH_DATA_new_method(ENGINE *engine)
{
ECDH_DATA *ret;
ret=(ECDH_DATA *)OPENSSL_malloc(sizeof(ECDH_DATA));
if (ret == NULL)
{
ECDHerr(ECDH_F_ECDH_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
return(NULL);
}
ret->init = NULL;
ret->meth = ECDH_get_default_method();
ret->engine = engine;
#ifndef OPENSSL_NO_ENGINE
if (!ret->engine)
ret->engine = ENGINE_get_default_ECDH();
if (ret->engine)
{
ret->meth = ENGINE_get_ECDH(ret->engine);
if (!ret->meth)
{
ECDHerr(ECDH_F_ECDH_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_ECDH, ret, &ret->ex_data);
#if 0
if ((ret->meth->init != NULL) && !ret->meth->init(ret))
{
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data);
OPENSSL_free(ret);
ret=NULL;
}
#endif
return(ret);
}
static void *ecdh_data_new(void)
{
return (void *)ECDH_DATA_new_method(NULL);
}
static void *ecdh_data_dup(void *data)
{
ECDH_DATA *r = (ECDH_DATA *)data;
/* XXX: dummy operation */
if (r == NULL)
return NULL;
return (void *)ecdh_data_new();
}
void ecdh_data_free(void *data)
{
ECDH_DATA *r = (ECDH_DATA *)data;
#ifndef OPENSSL_NO_ENGINE
if (r->engine)
ENGINE_finish(r->engine);
#endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, r, &r->ex_data);
OPENSSL_cleanse((void *)r, sizeof(ECDH_DATA));
OPENSSL_free(r);
}
ECDH_DATA *ecdh_check(EC_KEY *key)
{
ECDH_DATA *ecdh_data;
void *data = EC_KEY_get_key_method_data(key, ecdh_data_dup,
ecdh_data_free, ecdh_data_free);
if (data == NULL)
{
ecdh_data = (ECDH_DATA *)ecdh_data_new();
if (ecdh_data == NULL)
return NULL;
EC_KEY_insert_key_method_data(key, (void *)ecdh_data,
ecdh_data_dup, ecdh_data_free, ecdh_data_free);
}
else
ecdh_data = (ECDH_DATA *)data;
return ecdh_data;
}
int ECDH_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_ECDH, argl, argp,
new_func, dup_func, free_func);
}
int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg)
{
ECDH_DATA *ecdh;
ecdh = ecdh_check(d);
if (ecdh == NULL)
return 0;
return(CRYPTO_set_ex_data(&ecdh->ex_data,idx,arg));
}
void *ECDH_get_ex_data(EC_KEY *d, int idx)
{
ECDH_DATA *ecdh;
ecdh = ecdh_check(d);
if (ecdh == NULL)
return NULL;
return(CRYPTO_get_ex_data(&ecdh->ex_data,idx));
}

94
crypto/ecdh/ech_locl.h Normal file
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/* crypto/ecdh/ech_locl.h */
/* ====================================================================
* 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_ECH_LOCL_H
#define HEADER_ECH_LOCL_H
#include <openssl/ecdh.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ecdh_method
{
const char *name;
int (*compute_key)(void *key, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh,
void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
#if 0
int (*init)(EC_KEY *eckey);
int (*finish)(EC_KEY *eckey);
#endif
int flags;
char *app_data;
};
typedef struct ecdh_data_st {
/* EC_KEY_METH_DATA part */
int (*init)(EC_KEY *);
/* method specific part */
ENGINE *engine;
int flags;
const ECDH_METHOD *meth;
CRYPTO_EX_DATA ex_data;
} ECDH_DATA;
ECDH_DATA *ecdh_check(EC_KEY *);
#ifdef __cplusplus
}
#endif
#endif /* HEADER_ECH_LOCL_H */

213
crypto/ecdh/ech_ossl.c Normal file
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@@ -0,0 +1,213 @@
/* crypto/ecdh/ech_ossl.c */
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
*
* The Elliptic Curve Public-Key Crypto Library (ECC Code) included
* herein is developed by SUN MICROSYSTEMS, INC., and is contributed
* to the OpenSSL project.
*
* The ECC Code is licensed pursuant to the OpenSSL open source
* license provided below.
*
* The ECDH software is originally written by Douglas Stebila of
* Sun Microsystems Laboratories.
*
*/
/* ====================================================================
* Copyright (c) 1998-2003 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 <limits.h>
#include "cryptlib.h"
#include "ech_locl.h"
#include <openssl/err.h>
#include <openssl/sha.h>
#include <openssl/obj_mac.h>
#include <openssl/bn.h>
static int ecdh_compute_key(void *out, size_t len, const EC_POINT *pub_key,
EC_KEY *ecdh,
void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen));
static ECDH_METHOD openssl_ecdh_meth = {
"OpenSSL ECDH method",
ecdh_compute_key,
#if 0
NULL, /* init */
NULL, /* finish */
#endif
0, /* flags */
NULL /* app_data */
};
const ECDH_METHOD *ECDH_OpenSSL(void)
{
return &openssl_ecdh_meth;
}
/* This implementation is based on the following primitives in the IEEE 1363 standard:
* - ECKAS-DH1
* - ECSVDP-DH
* Finally an optional KDF is applied.
*/
static int ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
EC_KEY *ecdh,
void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen))
{
BN_CTX *ctx;
EC_POINT *tmp=NULL;
BIGNUM *x=NULL, *y=NULL;
const BIGNUM *priv_key;
const EC_GROUP* group;
int ret= -1;
size_t buflen, len;
unsigned char *buf=NULL;
if (outlen > INT_MAX)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ERR_R_MALLOC_FAILURE); /* sort of, anyway */
return -1;
}
if ((ctx = BN_CTX_new()) == NULL) goto err;
BN_CTX_start(ctx);
x = BN_CTX_get(ctx);
y = BN_CTX_get(ctx);
priv_key = EC_KEY_get0_private_key(ecdh);
if (priv_key == NULL)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ECDH_R_NO_PRIVATE_VALUE);
goto err;
}
group = EC_KEY_get0_group(ecdh);
if ((tmp=EC_POINT_new(group)) == NULL)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EC_POINT_mul(group, tmp, NULL, pub_key, priv_key, ctx))
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ECDH_R_POINT_ARITHMETIC_FAILURE);
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, x, y, ctx))
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ECDH_R_POINT_ARITHMETIC_FAILURE);
goto err;
}
}
else
{
if (!EC_POINT_get_affine_coordinates_GF2m(group, tmp, x, y, ctx))
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ECDH_R_POINT_ARITHMETIC_FAILURE);
goto err;
}
}
buflen = (EC_GROUP_get_degree(group) + 7)/8;
len = BN_num_bytes(x);
if (len > buflen)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ERR_R_INTERNAL_ERROR);
goto err;
}
if ((buf = OPENSSL_malloc(buflen)) == NULL)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ERR_R_MALLOC_FAILURE);
goto err;
}
memset(buf, 0, buflen - len);
if (len != (size_t)BN_bn2bin(x, buf + buflen - len))
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ERR_R_BN_LIB);
goto err;
}
if (KDF != 0)
{
if (KDF(buf, buflen, out, &outlen) == NULL)
{
ECDHerr(ECDH_F_ECDH_COMPUTE_KEY,ECDH_R_KDF_FAILED);
goto err;
}
ret = outlen;
}
else
{
/* no KDF, just copy as much as we can */
if (outlen > buflen)
outlen = buflen;
memcpy(out, buf, outlen);
ret = outlen;
}
err:
if (tmp) EC_POINT_free(tmp);
if (ctx) BN_CTX_end(ctx);
if (ctx) BN_CTX_free(ctx);
if (buf) OPENSSL_free(buf);
return(ret);
}