diff options
Diffstat (limited to 'crypto/ecdsa/ecs_lib.c')
| -rw-r--r-- | crypto/ecdsa/ecs_lib.c | 221 |
1 files changed, 80 insertions, 141 deletions
diff --git a/crypto/ecdsa/ecs_lib.c b/crypto/ecdsa/ecs_lib.c index 5f10c2ede7..fbec1bd343 100644 --- a/crypto/ecdsa/ecs_lib.c +++ b/crypto/ecdsa/ecs_lib.c @@ -52,69 +52,15 @@ * Hudson (tjh@cryptsoft.com). * */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -#include "cryptlib.h" +#include <string.h> #include "ecdsa.h" #include <openssl/engine.h> const char *ECDSA_version="ECDSA" OPENSSL_VERSION_PTEXT; +static void ecdsa_finish(EC_KEY *); + static const ECDSA_METHOD *default_ECDSA_method = NULL; void ECDSA_set_default_method(const ECDSA_METHOD *meth) @@ -137,29 +83,53 @@ ECDSA *ECDSA_new(void) int ECDSA_set_method(ECDSA *ecdsa, const ECDSA_METHOD *meth) { const ECDSA_METHOD *mtmp; + ECDSA_DATA *ecdsa; + + ecdsa = ecdsa_check(eckey); + + if (ecdsa == NULL) + return 0; + mtmp = ecdsa->meth; - if (mtmp->finish) mtmp->finish(ecdsa); +#if 0 + if (mtmp->finish) + mtmp->finish(eckey); +#endif if (ecdsa->engine) { ENGINE_finish(ecdsa->engine); ecdsa->engine = NULL; } ecdsa->meth = meth; - if (meth->init) meth->init(ecdsa); +#if 0 + if (meth->init) + meth->init(eckey); +#endif return 1; } -ECDSA *ECDSA_new_method(ENGINE *engine) +ECDSA_DATA *ECDSA_DATA_new(void) +{ + return ECDSA_DATA_new_method(NULL); +} + +ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine) { - ECDSA *ret; + ECDSA_DATA *ret; - ret=(ECDSA *)OPENSSL_malloc(sizeof(ECDSA)); + ret=(ECDSA_DATA *)OPENSSL_malloc(sizeof(ECDSA_DATA)); if (ret == NULL) { - ECDSAerr(ECDSA_F_ECDSA_NEW,ERR_R_MALLOC_FAILURE); + ECDSAerr(ECDSA_F_ECDSA_DATA_NEW, ERR_R_MALLOC_FAILURE); return(NULL); } + ret->init = NULL; + ret->finish = ecdsa_finish; + + ret->kinv = NULL; + ret->r = NULL; + ret->meth = ECDSA_get_default_method(); ret->engine = engine; if (!ret->engine) @@ -169,71 +139,69 @@ ECDSA *ECDSA_new_method(ENGINE *engine) ret->meth = ENGINE_get_ECDSA(ret->engine); if (!ret->meth) { - ECDSAerr(ECDSA_R_ECDSA_F_ECDSA_NEW, ERR_R_ENGINE_LIB); + ECDSAerr(ECDSA_F_ECDSA_DATA_NEW, ERR_R_ENGINE_LIB); ENGINE_finish(ret->engine); OPENSSL_free(ret); return NULL; } } - ret->version = 1; - ret->conversion_form = ECDSA_get_default_conversion_form(); - ret->group = NULL; - - ret->pub_key = NULL; - ret->priv_key = NULL; - - ret->kinv = NULL; - ret->r = NULL; - - ret->references = 1; ret->flags = ret->meth->flags; CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); +#if 0 if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); OPENSSL_free(ret); ret=NULL; } - +#endif return(ret); } -void ECDSA_free(ECDSA *r) +void ECDSA_DATA_free(ECDSA_DATA *r) { - int i; - - if (r == NULL) return; - - i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_ECDSA); -#ifdef REF_PRINT - REF_PRINT("ECDSA",r); -#endif - if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) - { - fprintf(stderr,"ECDSA_free, bad reference count\n"); - abort(); - } -#endif + if (r->kinv) + BN_clear_free(r->kinv); + if (r->r) + BN_clear_free(r->r); +#if 0 if (r->meth->finish) r->meth->finish(r); +#endif if (r->engine) ENGINE_finish(r->engine); CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, r, &r->ex_data); - 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); - if (r->kinv != NULL) BN_clear_free(r->kinv); - if (r->r != NULL) BN_clear_free(r->r); + memset((void *)r, 0x0, sizeof(ECDSA_DATA)); + OPENSSL_free(r); } -int ECDSA_size(const ECDSA *r) +ECDSA_DATA *ecdsa_check(EC_KEY *key) +{ + if (key->meth_data) + { + if (key->meth_data->finish != ecdsa_finish) + { + key->meth_data->finish(key); + key->meth_data = (EC_KEY_METH_DATA *)ECDSA_DATA_new(); + } + } + else + key->meth_data = (EC_KEY_METH_DATA *)ECDSA_DATA_new(); + return (ECDSA_DATA *)key->meth_data; +} + +static void ecdsa_finish(EC_KEY *key) +{ + if (key->meth_data && key->meth_data->finish == ecdsa_finish) + ECDSA_DATA_free((ECDSA_DATA *)key->meth_data); +} + +int ECDSA_size(const EC_KEY *r) { int ret,i; ASN1_INTEGER bs; @@ -262,6 +230,7 @@ int ECDSA_size(const ECDSA *r) return(ret); } + int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) { @@ -269,50 +238,20 @@ int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, new_func, dup_func, free_func); } -int ECDSA_set_ex_data(ECDSA *d, int idx, void *arg) +int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg) { - return(CRYPTO_set_ex_data(&d->ex_data,idx,arg)); -} - -void *ECDSA_get_ex_data(ECDSA *d, int idx) -{ - return(CRYPTO_get_ex_data(&d->ex_data,idx)); -} - -int ECDSA_up_ref(ECDSA *ecdsa) -{ - int i = CRYPTO_add(&ecdsa->references, 1, CRYPTO_LOCK_ECDSA); -#ifdef REF_PRINT - REF_PRINT("ECDSA",r); -#endif -#ifdef REF_CHECK - if (i < 2) - { - fprintf(stderr, "ECDSA_up_ref, bad reference count\n"); - abort(); - } -#endif - return ((i > 1) ? 1 : 0); -} - -void ECDSA_set_conversion_form(ECDSA *ecdsa, const point_conversion_form_t form) -{ - if (ecdsa) ecdsa->conversion_form = form; -} - -point_conversion_form_t ECDSA_get_conversion_form(const ECDSA *ecdsa) -{ - return ecdsa ? ecdsa->conversion_form : 0; -} - -static point_conversion_form_t default_conversion_form = POINT_CONVERSION_UNCOMPRESSED; - -void ECDSA_set_default_conversion_form(const point_conversion_form_t form) -{ - default_conversion_form = form; + ECDSA_DATA *ecdsa; + ecdsa = ecdsa_check(d); + if (ecdsa == NULL) + return 0; + return(CRYPTO_set_ex_data(&ecdsa->ex_data,idx,arg)); } -point_conversion_form_t ECDSA_get_default_conversion_form(void) +void *ECDSA_get_ex_data(EC_KEY *d, int idx) { - return default_conversion_form; + ECDSA_DATA *ecdsa; + ecdsa = ecdsa_check(d); + if (ecdsa == NULL) + return NULL; + return(CRYPTO_get_ex_data(&ecdsa->ex_data,idx)); } |