diff options
Diffstat (limited to 'main/openssl/crypto/ecdh')
| -rw-r--r-- | main/openssl/crypto/ecdh/ecdh.h | 123 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ecdhtest.c | 368 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ech_err.c | 98 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ech_key.c | 83 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ech_lib.c | 246 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ech_locl.h | 94 | ||||
| -rw-r--r-- | main/openssl/crypto/ecdh/ech_ossl.c | 213 |
7 files changed, 1225 insertions, 0 deletions
diff --git a/main/openssl/crypto/ecdh/ecdh.h b/main/openssl/crypto/ecdh/ecdh.h new file mode 100644 index 00000000..b4b58ee6 --- /dev/null +++ b/main/openssl/crypto/ecdh/ecdh.h @@ -0,0 +1,123 @@ +/* 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 diff --git a/main/openssl/crypto/ecdh/ecdhtest.c b/main/openssl/crypto/ecdh/ecdhtest.c new file mode 100644 index 00000000..212a87ef --- /dev/null +++ b/main/openssl/crypto/ecdh/ecdhtest.c @@ -0,0 +1,368 @@ +/* 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 diff --git a/main/openssl/crypto/ecdh/ech_err.c b/main/openssl/crypto/ecdh/ech_err.c new file mode 100644 index 00000000..6f4b0c99 --- /dev/null +++ b/main/openssl/crypto/ecdh/ech_err.c @@ -0,0 +1,98 @@ +/* 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 + } diff --git a/main/openssl/crypto/ecdh/ech_key.c b/main/openssl/crypto/ecdh/ech_key.c new file mode 100644 index 00000000..f44da929 --- /dev/null +++ b/main/openssl/crypto/ecdh/ech_key.c @@ -0,0 +1,83 @@ +/* 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); +} diff --git a/main/openssl/crypto/ecdh/ech_lib.c b/main/openssl/crypto/ecdh/ech_lib.c new file mode 100644 index 00000000..4d8ea03d --- /dev/null +++ b/main/openssl/crypto/ecdh/ech_lib.c @@ -0,0 +1,246 @@ +/* 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)); + } diff --git a/main/openssl/crypto/ecdh/ech_locl.h b/main/openssl/crypto/ecdh/ech_locl.h new file mode 100644 index 00000000..f658526a --- /dev/null +++ b/main/openssl/crypto/ecdh/ech_locl.h @@ -0,0 +1,94 @@ +/* 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 */ diff --git a/main/openssl/crypto/ecdh/ech_ossl.c b/main/openssl/crypto/ecdh/ech_ossl.c new file mode 100644 index 00000000..2a40ff12 --- /dev/null +++ b/main/openssl/crypto/ecdh/ech_ossl.c @@ -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); + } |