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| 1 /* crypto/asn1/a_sign.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 /* ==================================================================== | |
| 59 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. | |
| 60 * | |
| 61 * Redistribution and use in source and binary forms, with or without | |
| 62 * modification, are permitted provided that the following conditions | |
| 63 * are met: | |
| 64 * | |
| 65 * 1. Redistributions of source code must retain the above copyright | |
| 66 * notice, this list of conditions and the following disclaimer. | |
| 67 * | |
| 68 * 2. Redistributions in binary form must reproduce the above copyright | |
| 69 * notice, this list of conditions and the following disclaimer in | |
| 70 * the documentation and/or other materials provided with the | |
| 71 * distribution. | |
| 72 * | |
| 73 * 3. All advertising materials mentioning features or use of this | |
| 74 * software must display the following acknowledgment: | |
| 75 * "This product includes software developed by the OpenSSL Project | |
| 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
| 77 * | |
| 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 79 * endorse or promote products derived from this software without | |
| 80 * prior written permission. For written permission, please contact | |
| 81 * openssl-core@openssl.org. | |
| 82 * | |
| 83 * 5. Products derived from this software may not be called "OpenSSL" | |
| 84 * nor may "OpenSSL" appear in their names without prior written | |
| 85 * permission of the OpenSSL Project. | |
| 86 * | |
| 87 * 6. Redistributions of any form whatsoever must retain the following | |
| 88 * acknowledgment: | |
| 89 * "This product includes software developed by the OpenSSL Project | |
| 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
| 91 * | |
| 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 103 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 104 * ==================================================================== | |
| 105 * | |
| 106 * This product includes cryptographic software written by Eric Young | |
| 107 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 108 * Hudson (tjh@cryptsoft.com). | |
| 109 * | |
| 110 */ | |
| 111 | |
| 112 #include <stdio.h> | |
| 113 #include <time.h> | |
| 114 | |
| 115 #include "cryptlib.h" | |
| 116 | |
| 117 #ifndef NO_SYS_TYPES_H | |
| 118 # include <sys/types.h> | |
| 119 #endif | |
| 120 | |
| 121 #include <openssl/bn.h> | |
| 122 #include <openssl/evp.h> | |
| 123 #include <openssl/x509.h> | |
| 124 #include <openssl/objects.h> | |
| 125 #include <openssl/buffer.h> | |
| 126 #include "asn1_locl.h" | |
| 127 | |
| 128 #ifndef NO_ASN1_OLD | |
| 129 | |
| 130 int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, | |
| 131 ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey, | |
| 132 const EVP_MD *type) | |
| 133 { | |
| 134 EVP_MD_CTX ctx; | |
| 135 unsigned char *p,*buf_in=NULL,*buf_out=NULL; | |
| 136 int i,inl=0,outl=0,outll=0; | |
| 137 X509_ALGOR *a; | |
| 138 | |
| 139 EVP_MD_CTX_init(&ctx); | |
| 140 for (i=0; i<2; i++) | |
| 141 { | |
| 142 if (i == 0) | |
| 143 a=algor1; | |
| 144 else | |
| 145 a=algor2; | |
| 146 if (a == NULL) continue; | |
| 147 if (type->pkey_type == NID_dsaWithSHA1) | |
| 148 { | |
| 149 /* special case: RFC 2459 tells us to omit 'parameters' | |
| 150 * with id-dsa-with-sha1 */ | |
| 151 ASN1_TYPE_free(a->parameter); | |
| 152 a->parameter = NULL; | |
| 153 } | |
| 154 else if ((a->parameter == NULL) || | |
| 155 (a->parameter->type != V_ASN1_NULL)) | |
| 156 { | |
| 157 ASN1_TYPE_free(a->parameter); | |
| 158 if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err; | |
| 159 a->parameter->type=V_ASN1_NULL; | |
| 160 } | |
| 161 ASN1_OBJECT_free(a->algorithm); | |
| 162 a->algorithm=OBJ_nid2obj(type->pkey_type); | |
| 163 if (a->algorithm == NULL) | |
| 164 { | |
| 165 ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE); | |
| 166 goto err; | |
| 167 } | |
| 168 if (a->algorithm->length == 0) | |
| 169 { | |
| 170 ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFI
ER_IS_NOT_KNOWN_FOR_THIS_MD); | |
| 171 goto err; | |
| 172 } | |
| 173 } | |
| 174 inl=i2d(data,NULL); | |
| 175 buf_in=(unsigned char *)OPENSSL_malloc((unsigned int)inl); | |
| 176 outll=outl=EVP_PKEY_size(pkey); | |
| 177 buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl); | |
| 178 if ((buf_in == NULL) || (buf_out == NULL)) | |
| 179 { | |
| 180 outl=0; | |
| 181 ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE); | |
| 182 goto err; | |
| 183 } | |
| 184 p=buf_in; | |
| 185 | |
| 186 i2d(data,&p); | |
| 187 if (!EVP_SignInit_ex(&ctx,type, NULL) | |
| 188 || !EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl) | |
| 189 || !EVP_SignFinal(&ctx,(unsigned char *)buf_out, | |
| 190 (unsigned int *)&outl,pkey)) | |
| 191 { | |
| 192 outl=0; | |
| 193 ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB); | |
| 194 goto err; | |
| 195 } | |
| 196 if (signature->data != NULL) OPENSSL_free(signature->data); | |
| 197 signature->data=buf_out; | |
| 198 buf_out=NULL; | |
| 199 signature->length=outl; | |
| 200 /* In the interests of compatibility, I'll make sure that | |
| 201 * the bit string has a 'not-used bits' value of 0 | |
| 202 */ | |
| 203 signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); | |
| 204 signature->flags|=ASN1_STRING_FLAG_BITS_LEFT; | |
| 205 err: | |
| 206 EVP_MD_CTX_cleanup(&ctx); | |
| 207 if (buf_in != NULL) | |
| 208 { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_fre
e(buf_in); } | |
| 209 if (buf_out != NULL) | |
| 210 { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out);
} | |
| 211 return(outl); | |
| 212 } | |
| 213 | |
| 214 #endif | |
| 215 | |
| 216 int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2, | |
| 217 ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey, | |
| 218 const EVP_MD *type) | |
| 219 { | |
| 220 EVP_MD_CTX ctx; | |
| 221 EVP_MD_CTX_init(&ctx); | |
| 222 if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) | |
| 223 { | |
| 224 EVP_MD_CTX_cleanup(&ctx); | |
| 225 return 0; | |
| 226 } | |
| 227 return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx); | |
| 228 } | |
| 229 | |
| 230 | |
| 231 int ASN1_item_sign_ctx(const ASN1_ITEM *it, | |
| 232 X509_ALGOR *algor1, X509_ALGOR *algor2, | |
| 233 ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx) | |
| 234 { | |
| 235 const EVP_MD *type; | |
| 236 EVP_PKEY *pkey; | |
| 237 unsigned char *buf_in=NULL,*buf_out=NULL; | |
| 238 size_t inl=0,outl=0,outll=0; | |
| 239 int signid, paramtype; | |
| 240 int rv; | |
| 241 | |
| 242 type = EVP_MD_CTX_md(ctx); | |
| 243 pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx); | |
| 244 | |
| 245 if (!type || !pkey) | |
| 246 { | |
| 247 ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISE
D); | |
| 248 return 0; | |
| 249 } | |
| 250 | |
| 251 if (pkey->ameth->item_sign) | |
| 252 { | |
| 253 rv = pkey->ameth->item_sign(ctx, it, asn, algor1, algor2, | |
| 254 signature); | |
| 255 if (rv == 1) | |
| 256 outl = signature->length; | |
| 257 /* Return value meanings: | |
| 258 * <=0: error. | |
| 259 * 1: method does everything. | |
| 260 * 2: carry on as normal. | |
| 261 * 3: ASN1 method sets algorithm identifiers: just sign. | |
| 262 */ | |
| 263 if (rv <= 0) | |
| 264 ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB); | |
| 265 if (rv <= 1) | |
| 266 goto err; | |
| 267 } | |
| 268 else | |
| 269 rv = 2; | |
| 270 | |
| 271 if (rv == 2) | |
| 272 { | |
| 273 if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) | |
| 274 { | |
| 275 if (!pkey->ameth || | |
| 276 !OBJ_find_sigid_by_algs(&signid, | |
| 277 EVP_MD_nid(type), | |
| 278 pkey->ameth->pkey_id)) | |
| 279 { | |
| 280 ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, | |
| 281 ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED
); | |
| 282 return 0; | |
| 283 } | |
| 284 } | |
| 285 else | |
| 286 signid = type->pkey_type; | |
| 287 | |
| 288 if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL) | |
| 289 paramtype = V_ASN1_NULL; | |
| 290 else | |
| 291 paramtype = V_ASN1_UNDEF; | |
| 292 | |
| 293 if (algor1) | |
| 294 X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype,
NULL); | |
| 295 if (algor2) | |
| 296 X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype,
NULL); | |
| 297 | |
| 298 } | |
| 299 | |
| 300 inl=ASN1_item_i2d(asn,&buf_in, it); | |
| 301 outll=outl=EVP_PKEY_size(pkey); | |
| 302 buf_out=OPENSSL_malloc((unsigned int)outl); | |
| 303 if ((buf_in == NULL) || (buf_out == NULL)) | |
| 304 { | |
| 305 outl=0; | |
| 306 ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,ERR_R_MALLOC_FAILURE); | |
| 307 goto err; | |
| 308 } | |
| 309 | |
| 310 if (!EVP_DigestSignUpdate(ctx, buf_in, inl) | |
| 311 || !EVP_DigestSignFinal(ctx, buf_out, &outl)) | |
| 312 { | |
| 313 outl=0; | |
| 314 ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,ERR_R_EVP_LIB); | |
| 315 goto err; | |
| 316 } | |
| 317 if (signature->data != NULL) OPENSSL_free(signature->data); | |
| 318 signature->data=buf_out; | |
| 319 buf_out=NULL; | |
| 320 signature->length=outl; | |
| 321 /* In the interests of compatibility, I'll make sure that | |
| 322 * the bit string has a 'not-used bits' value of 0 | |
| 323 */ | |
| 324 signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); | |
| 325 signature->flags|=ASN1_STRING_FLAG_BITS_LEFT; | |
| 326 err: | |
| 327 EVP_MD_CTX_cleanup(ctx); | |
| 328 if (buf_in != NULL) | |
| 329 { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_fre
e(buf_in); } | |
| 330 if (buf_out != NULL) | |
| 331 { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out);
} | |
| 332 return(outl); | |
| 333 } | |
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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