| OLD | NEW |
|---|
| (Empty) |
| 1 /* crypto/ecdsa/ecs_lib.c */ | |
| 2 /* ==================================================================== | |
| 3 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in | |
| 14 * the documentation and/or other materials provided with the | |
| 15 * distribution. | |
| 16 * | |
| 17 * 3. All advertising materials mentioning features or use of this | |
| 18 * software must display the following acknowledgment: | |
| 19 * "This product includes software developed by the OpenSSL Project | |
| 20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 21 * | |
| 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 23 * endorse or promote products derived from this software without | |
| 24 * prior written permission. For written permission, please contact | |
| 25 * openssl-core@OpenSSL.org. | |
| 26 * | |
| 27 * 5. Products derived from this software may not be called "OpenSSL" | |
| 28 * nor may "OpenSSL" appear in their names without prior written | |
| 29 * permission of the OpenSSL Project. | |
| 30 * | |
| 31 * 6. Redistributions of any form whatsoever must retain the following | |
| 32 * acknowledgment: | |
| 33 * "This product includes software developed by the OpenSSL Project | |
| 34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 35 * | |
| 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 47 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 48 * ==================================================================== | |
| 49 * | |
| 50 * This product includes cryptographic software written by Eric Young | |
| 51 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 52 * Hudson (tjh@cryptsoft.com). | |
| 53 * | |
| 54 */ | |
| 55 | |
| 56 #include <string.h> | |
| 57 #include "ecs_locl.h" | |
| 58 #ifndef OPENSSL_NO_ENGINE | |
| 59 #include <openssl/engine.h> | |
| 60 #endif | |
| 61 #include <openssl/err.h> | |
| 62 #include <openssl/bn.h> | |
| 63 #ifdef OPENSSL_FIPS | |
| 64 #include <openssl/fips.h> | |
| 65 #endif | |
| 66 | |
| 67 const char ECDSA_version[]="ECDSA" OPENSSL_VERSION_PTEXT; | |
| 68 | |
| 69 static const ECDSA_METHOD *default_ECDSA_method = NULL; | |
| 70 | |
| 71 static void *ecdsa_data_new(void); | |
| 72 static void *ecdsa_data_dup(void *); | |
| 73 static void ecdsa_data_free(void *); | |
| 74 | |
| 75 void ECDSA_set_default_method(const ECDSA_METHOD *meth) | |
| 76 { | |
| 77 default_ECDSA_method = meth; | |
| 78 } | |
| 79 | |
| 80 const ECDSA_METHOD *ECDSA_get_default_method(void) | |
| 81 { | |
| 82 if(!default_ECDSA_method) | |
| 83 { | |
| 84 #ifdef OPENSSL_FIPS | |
| 85 if (FIPS_mode()) | |
| 86 return FIPS_ecdsa_openssl(); | |
| 87 else | |
| 88 return ECDSA_OpenSSL(); | |
| 89 #else | |
| 90 default_ECDSA_method = ECDSA_OpenSSL(); | |
| 91 #endif | |
| 92 } | |
| 93 return default_ECDSA_method; | |
| 94 } | |
| 95 | |
| 96 int ECDSA_set_method(EC_KEY *eckey, const ECDSA_METHOD *meth) | |
| 97 { | |
| 98 ECDSA_DATA *ecdsa; | |
| 99 | |
| 100 ecdsa = ecdsa_check(eckey); | |
| 101 | |
| 102 if (ecdsa == NULL) | |
| 103 return 0; | |
| 104 | |
| 105 #ifndef OPENSSL_NO_ENGINE | |
| 106 if (ecdsa->engine) | |
| 107 { | |
| 108 ENGINE_finish(ecdsa->engine); | |
| 109 ecdsa->engine = NULL; | |
| 110 } | |
| 111 #endif | |
| 112 ecdsa->meth = meth; | |
| 113 | |
| 114 return 1; | |
| 115 } | |
| 116 | |
| 117 static ECDSA_DATA *ECDSA_DATA_new_method(ENGINE *engine) | |
| 118 { | |
| 119 ECDSA_DATA *ret; | |
| 120 | |
| 121 ret=(ECDSA_DATA *)OPENSSL_malloc(sizeof(ECDSA_DATA)); | |
| 122 if (ret == NULL) | |
| 123 { | |
| 124 ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_MALLOC_FAILURE); | |
| 125 return(NULL); | |
| 126 } | |
| 127 | |
| 128 ret->init = NULL; | |
| 129 | |
| 130 ret->meth = ECDSA_get_default_method(); | |
| 131 ret->engine = engine; | |
| 132 #ifndef OPENSSL_NO_ENGINE | |
| 133 if (!ret->engine) | |
| 134 ret->engine = ENGINE_get_default_ECDSA(); | |
| 135 if (ret->engine) | |
| 136 { | |
| 137 ret->meth = ENGINE_get_ECDSA(ret->engine); | |
| 138 if (!ret->meth) | |
| 139 { | |
| 140 ECDSAerr(ECDSA_F_ECDSA_DATA_NEW_METHOD, ERR_R_ENGINE_LIB
); | |
| 141 ENGINE_finish(ret->engine); | |
| 142 OPENSSL_free(ret); | |
| 143 return NULL; | |
| 144 } | |
| 145 } | |
| 146 #endif | |
| 147 | |
| 148 ret->flags = ret->meth->flags; | |
| 149 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); | |
| 150 #if 0 | |
| 151 if ((ret->meth->init != NULL) && !ret->meth->init(ret)) | |
| 152 { | |
| 153 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, ret, &ret->ex_data); | |
| 154 OPENSSL_free(ret); | |
| 155 ret=NULL; | |
| 156 } | |
| 157 #endif | |
| 158 return(ret); | |
| 159 } | |
| 160 | |
| 161 static void *ecdsa_data_new(void) | |
| 162 { | |
| 163 return (void *)ECDSA_DATA_new_method(NULL); | |
| 164 } | |
| 165 | |
| 166 static void *ecdsa_data_dup(void *data) | |
| 167 { | |
| 168 ECDSA_DATA *r = (ECDSA_DATA *)data; | |
| 169 | |
| 170 /* XXX: dummy operation */ | |
| 171 if (r == NULL) | |
| 172 return NULL; | |
| 173 | |
| 174 return ecdsa_data_new(); | |
| 175 } | |
| 176 | |
| 177 static void ecdsa_data_free(void *data) | |
| 178 { | |
| 179 ECDSA_DATA *r = (ECDSA_DATA *)data; | |
| 180 | |
| 181 #ifndef OPENSSL_NO_ENGINE | |
| 182 if (r->engine) | |
| 183 ENGINE_finish(r->engine); | |
| 184 #endif | |
| 185 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDSA, r, &r->ex_data); | |
| 186 | |
| 187 OPENSSL_cleanse((void *)r, sizeof(ECDSA_DATA)); | |
| 188 | |
| 189 OPENSSL_free(r); | |
| 190 } | |
| 191 | |
| 192 ECDSA_DATA *ecdsa_check(EC_KEY *key) | |
| 193 { | |
| 194 ECDSA_DATA *ecdsa_data; | |
| 195 | |
| 196 void *data = EC_KEY_get_key_method_data(key, ecdsa_data_dup, | |
| 197 ecdsa_data_free, ecdsa_data_free); | |
| 198 if (data == NULL) | |
| 199 { | |
| 200 ecdsa_data = (ECDSA_DATA *)ecdsa_data_new(); | |
| 201 if (ecdsa_data == NULL) | |
| 202 return NULL; | |
| 203 data = EC_KEY_insert_key_method_data(key, (void *)ecdsa_data, | |
| 204 ecdsa_data_dup, ecdsa_data_free, ecdsa_data_free); | |
| 205 if (data != NULL) | |
| 206 { | |
| 207 /* Another thread raced us to install the key_method | |
| 208 * data and won. */ | |
| 209 ecdsa_data_free(ecdsa_data); | |
| 210 ecdsa_data = (ECDSA_DATA *)data; | |
| 211 } | |
| 212 } | |
| 213 else | |
| 214 ecdsa_data = (ECDSA_DATA *)data; | |
| 215 #ifdef OPENSSL_FIPS | |
| 216 if (FIPS_mode() && !(ecdsa_data->flags & ECDSA_FLAG_FIPS_METHOD) | |
| 217 && !(EC_KEY_get_flags(key) & EC_FLAG_NON_FIPS_ALLOW)) | |
| 218 { | |
| 219 ECDSAerr(ECDSA_F_ECDSA_CHECK, ECDSA_R_NON_FIPS_METHOD); | |
| 220 return NULL; | |
| 221 } | |
| 222 #endif | |
| 223 | |
| 224 return ecdsa_data; | |
| 225 } | |
| 226 | |
| 227 int ECDSA_size(const EC_KEY *r) | |
| 228 { | |
| 229 int ret,i; | |
| 230 ASN1_INTEGER bs; | |
| 231 BIGNUM *order=NULL; | |
| 232 unsigned char buf[4]; | |
| 233 const EC_GROUP *group; | |
| 234 | |
| 235 if (r == NULL) | |
| 236 return 0; | |
| 237 group = EC_KEY_get0_group(r); | |
| 238 if (group == NULL) | |
| 239 return 0; | |
| 240 | |
| 241 if ((order = BN_new()) == NULL) return 0; | |
| 242 if (!EC_GROUP_get_order(group,order,NULL)) | |
| 243 { | |
| 244 BN_clear_free(order); | |
| 245 return 0; | |
| 246 } | |
| 247 i=BN_num_bits(order); | |
| 248 bs.length=(i+7)/8; | |
| 249 bs.data=buf; | |
| 250 bs.type=V_ASN1_INTEGER; | |
| 251 /* If the top bit is set the asn1 encoding is 1 larger. */ | |
| 252 buf[0]=0xff; | |
| 253 | |
| 254 i=i2d_ASN1_INTEGER(&bs,NULL); | |
| 255 i+=i; /* r and s */ | |
| 256 ret=ASN1_object_size(1,i,V_ASN1_SEQUENCE); | |
| 257 BN_clear_free(order); | |
| 258 return(ret); | |
| 259 } | |
| 260 | |
| 261 | |
| 262 int ECDSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | |
| 263 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | |
| 264 { | |
| 265 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDSA, argl, argp, | |
| 266 new_func, dup_func, free_func); | |
| 267 } | |
| 268 | |
| 269 int ECDSA_set_ex_data(EC_KEY *d, int idx, void *arg) | |
| 270 { | |
| 271 ECDSA_DATA *ecdsa; | |
| 272 ecdsa = ecdsa_check(d); | |
| 273 if (ecdsa == NULL) | |
| 274 return 0; | |
| 275 return(CRYPTO_set_ex_data(&ecdsa->ex_data,idx,arg)); | |
| 276 } | |
| 277 | |
| 278 void *ECDSA_get_ex_data(EC_KEY *d, int idx) | |
| 279 { | |
| 280 ECDSA_DATA *ecdsa; | |
| 281 ecdsa = ecdsa_check(d); | |
| 282 if (ecdsa == NULL) | |
| 283 return NULL; | |
| 284 return(CRYPTO_get_ex_data(&ecdsa->ex_data,idx)); | |
| 285 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master