diff options
Diffstat (limited to 'openssl/crypto/ec/ec_key.c')
-rw-r--r-- | openssl/crypto/ec/ec_key.c | 463 |
1 files changed, 0 insertions, 463 deletions
diff --git a/openssl/crypto/ec/ec_key.c b/openssl/crypto/ec/ec_key.c deleted file mode 100644 index 522802c0..00000000 --- a/openssl/crypto/ec/ec_key.c +++ /dev/null @@ -1,463 +0,0 @@ -/* crypto/ec/ec_key.c */ -/* - * Written by Nils Larsch for the OpenSSL project. - */ -/* ==================================================================== - * 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). - * - */ -/* ==================================================================== - * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * Portions originally developed by SUN MICROSYSTEMS, INC., and - * contributed to the OpenSSL project. - */ - -#include <string.h> -#include "ec_lcl.h" -#include <openssl/err.h> -#include <string.h> - -EC_KEY *EC_KEY_new(void) - { - EC_KEY *ret; - - ret=(EC_KEY *)OPENSSL_malloc(sizeof(EC_KEY)); - if (ret == NULL) - { - ECerr(EC_F_EC_KEY_NEW, ERR_R_MALLOC_FAILURE); - return(NULL); - } - - ret->version = 1; - ret->group = NULL; - ret->pub_key = NULL; - ret->priv_key= NULL; - ret->enc_flag= 0; - ret->conv_form = POINT_CONVERSION_UNCOMPRESSED; - ret->references= 1; - ret->method_data = NULL; - return(ret); - } - -EC_KEY *EC_KEY_new_by_curve_name(int nid) - { - EC_KEY *ret = EC_KEY_new(); - if (ret == NULL) - return NULL; - ret->group = EC_GROUP_new_by_curve_name(nid); - if (ret->group == NULL) - { - EC_KEY_free(ret); - return NULL; - } - return ret; - } - -void EC_KEY_free(EC_KEY *r) - { - int i; - - if (r == NULL) return; - - i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_EC); -#ifdef REF_PRINT - REF_PRINT("EC_KEY",r); -#endif - if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) - { - fprintf(stderr,"EC_KEY_free, bad reference count\n"); - abort(); - } -#endif - - if (r->group != NULL) - EC_GROUP_free(r->group); - if (r->pub_key != NULL) - EC_POINT_free(r->pub_key); - if (r->priv_key != NULL) - BN_clear_free(r->priv_key); - - EC_EX_DATA_free_all_data(&r->method_data); - - OPENSSL_cleanse((void *)r, sizeof(EC_KEY)); - - OPENSSL_free(r); - } - -EC_KEY *EC_KEY_copy(EC_KEY *dest, const EC_KEY *src) - { - EC_EXTRA_DATA *d; - - if (dest == NULL || src == NULL) - { - ECerr(EC_F_EC_KEY_COPY, ERR_R_PASSED_NULL_PARAMETER); - return NULL; - } - /* copy the parameters */ - if (src->group) - { - const EC_METHOD *meth = EC_GROUP_method_of(src->group); - /* clear the old group */ - if (dest->group) - EC_GROUP_free(dest->group); - dest->group = EC_GROUP_new(meth); - if (dest->group == NULL) - return NULL; - if (!EC_GROUP_copy(dest->group, src->group)) - return NULL; - } - /* copy the public key */ - if (src->pub_key && src->group) - { - if (dest->pub_key) - EC_POINT_free(dest->pub_key); - dest->pub_key = EC_POINT_new(src->group); - if (dest->pub_key == NULL) - return NULL; - if (!EC_POINT_copy(dest->pub_key, src->pub_key)) - return NULL; - } - /* copy the private key */ - if (src->priv_key) - { - if (dest->priv_key == NULL) - { - dest->priv_key = BN_new(); - if (dest->priv_key == NULL) - return NULL; - } - if (!BN_copy(dest->priv_key, src->priv_key)) - return NULL; - } - /* copy method/extra data */ - EC_EX_DATA_free_all_data(&dest->method_data); - - for (d = src->method_data; d != NULL; d = d->next) - { - void *t = d->dup_func(d->data); - - if (t == NULL) - return 0; - if (!EC_EX_DATA_set_data(&dest->method_data, t, d->dup_func, d->free_func, d->clear_free_func)) - return 0; - } - - /* copy the rest */ - dest->enc_flag = src->enc_flag; - dest->conv_form = src->conv_form; - dest->version = src->version; - - return dest; - } - -EC_KEY *EC_KEY_dup(const EC_KEY *ec_key) - { - EC_KEY *ret = EC_KEY_new(); - if (ret == NULL) - return NULL; - if (EC_KEY_copy(ret, ec_key) == NULL) - { - EC_KEY_free(ret); - return NULL; - } - return ret; - } - -int EC_KEY_up_ref(EC_KEY *r) - { - int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_EC); -#ifdef REF_PRINT - REF_PRINT("EC_KEY",r); -#endif -#ifdef REF_CHECK - if (i < 2) - { - fprintf(stderr, "EC_KEY_up, bad reference count\n"); - abort(); - } -#endif - return ((i > 1) ? 1 : 0); - } - -int EC_KEY_generate_key(EC_KEY *eckey) - { - int ok = 0; - BN_CTX *ctx = NULL; - BIGNUM *priv_key = NULL, *order = NULL; - EC_POINT *pub_key = NULL; - - if (!eckey || !eckey->group) - { - ECerr(EC_F_EC_KEY_GENERATE_KEY, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - - if ((order = BN_new()) == NULL) goto err; - if ((ctx = BN_CTX_new()) == NULL) goto err; - - if (eckey->priv_key == NULL) - { - priv_key = BN_new(); - if (priv_key == NULL) - goto err; - } - else - priv_key = eckey->priv_key; - - if (!EC_GROUP_get_order(eckey->group, order, ctx)) - goto err; - - do - if (!BN_rand_range(priv_key, order)) - goto err; - while (BN_is_zero(priv_key)); - - if (eckey->pub_key == NULL) - { - pub_key = EC_POINT_new(eckey->group); - if (pub_key == NULL) - goto err; - } - else - pub_key = eckey->pub_key; - - if (!EC_POINT_mul(eckey->group, pub_key, priv_key, NULL, NULL, ctx)) - goto err; - - eckey->priv_key = priv_key; - eckey->pub_key = pub_key; - - ok=1; - -err: - if (order) - BN_free(order); - if (pub_key != NULL && eckey->pub_key == NULL) - EC_POINT_free(pub_key); - if (priv_key != NULL && eckey->priv_key == NULL) - BN_free(priv_key); - if (ctx != NULL) - BN_CTX_free(ctx); - return(ok); - } - -int EC_KEY_check_key(const EC_KEY *eckey) - { - int ok = 0; - BN_CTX *ctx = NULL; - const BIGNUM *order = NULL; - EC_POINT *point = NULL; - - if (!eckey || !eckey->group || !eckey->pub_key) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - - if (EC_POINT_is_at_infinity(eckey->group, eckey->pub_key)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_AT_INFINITY); - goto err; - } - - if ((ctx = BN_CTX_new()) == NULL) - goto err; - if ((point = EC_POINT_new(eckey->group)) == NULL) - goto err; - - /* testing whether the pub_key is on the elliptic curve */ - if (!EC_POINT_is_on_curve(eckey->group, eckey->pub_key, ctx)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_IS_NOT_ON_CURVE); - goto err; - } - /* testing whether pub_key * order is the point at infinity */ - order = &eckey->group->order; - if (BN_is_zero(order)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_GROUP_ORDER); - goto err; - } - if (!EC_POINT_mul(eckey->group, point, NULL, eckey->pub_key, order, ctx)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB); - goto err; - } - if (!EC_POINT_is_at_infinity(eckey->group, point)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_WRONG_ORDER); - goto err; - } - /* in case the priv_key is present : - * check if generator * priv_key == pub_key - */ - if (eckey->priv_key) - { - if (BN_cmp(eckey->priv_key, order) >= 0) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_WRONG_ORDER); - goto err; - } - if (!EC_POINT_mul(eckey->group, point, eckey->priv_key, - NULL, NULL, ctx)) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_EC_LIB); - goto err; - } - if (EC_POINT_cmp(eckey->group, point, eckey->pub_key, - ctx) != 0) - { - ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_INVALID_PRIVATE_KEY); - goto err; - } - } - ok = 1; -err: - if (ctx != NULL) - BN_CTX_free(ctx); - if (point != NULL) - EC_POINT_free(point); - return(ok); - } - -const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key) - { - return key->group; - } - -int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group) - { - if (key->group != NULL) - EC_GROUP_free(key->group); - key->group = EC_GROUP_dup(group); - return (key->group == NULL) ? 0 : 1; - } - -const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key) - { - return key->priv_key; - } - -int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *priv_key) - { - if (key->priv_key) - BN_clear_free(key->priv_key); - key->priv_key = BN_dup(priv_key); - return (key->priv_key == NULL) ? 0 : 1; - } - -const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key) - { - return key->pub_key; - } - -int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub_key) - { - if (key->pub_key != NULL) - EC_POINT_free(key->pub_key); - key->pub_key = EC_POINT_dup(pub_key, key->group); - return (key->pub_key == NULL) ? 0 : 1; - } - -unsigned int EC_KEY_get_enc_flags(const EC_KEY *key) - { - return key->enc_flag; - } - -void EC_KEY_set_enc_flags(EC_KEY *key, unsigned int flags) - { - key->enc_flag = flags; - } - -point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key) - { - return key->conv_form; - } - -void EC_KEY_set_conv_form(EC_KEY *key, point_conversion_form_t cform) - { - key->conv_form = cform; - if (key->group != NULL) - EC_GROUP_set_point_conversion_form(key->group, cform); - } - -void *EC_KEY_get_key_method_data(EC_KEY *key, - void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)) - { - return EC_EX_DATA_get_data(key->method_data, dup_func, free_func, clear_free_func); - } - -void EC_KEY_insert_key_method_data(EC_KEY *key, void *data, - void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)) - { - EC_EXTRA_DATA *ex_data; - CRYPTO_w_lock(CRYPTO_LOCK_EC); - ex_data = EC_EX_DATA_get_data(key->method_data, dup_func, free_func, clear_free_func); - if (ex_data == NULL) - EC_EX_DATA_set_data(&key->method_data, data, dup_func, free_func, clear_free_func); - CRYPTO_w_unlock(CRYPTO_LOCK_EC); - } - -void EC_KEY_set_asn1_flag(EC_KEY *key, int flag) - { - if (key->group != NULL) - EC_GROUP_set_asn1_flag(key->group, flag); - } - -int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx) - { - if (key->group == NULL) - return 0; - return EC_GROUP_precompute_mult(key->group, ctx); - } |