diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/a_sign.c')
| -rw-r--r-- | src/lib/libcrypto/asn1/a_sign.c | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/a_sign.c b/src/lib/libcrypto/asn1/a_sign.c new file mode 100644 index 0000000000..1081950518 --- /dev/null +++ b/src/lib/libcrypto/asn1/a_sign.c | |||
| @@ -0,0 +1,295 @@ | |||
| 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 | |||
| 127 | #ifndef NO_ASN1_OLD | ||
| 128 | |||
| 129 | int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2, | ||
| 130 | ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey, | ||
| 131 | const EVP_MD *type) | ||
| 132 | { | ||
| 133 | EVP_MD_CTX ctx; | ||
| 134 | unsigned char *p,*buf_in=NULL,*buf_out=NULL; | ||
| 135 | int i,inl=0,outl=0,outll=0; | ||
| 136 | X509_ALGOR *a; | ||
| 137 | |||
| 138 | EVP_MD_CTX_init(&ctx); | ||
| 139 | for (i=0; i<2; i++) | ||
| 140 | { | ||
| 141 | if (i == 0) | ||
| 142 | a=algor1; | ||
| 143 | else | ||
| 144 | a=algor2; | ||
| 145 | if (a == NULL) continue; | ||
| 146 | if (type->pkey_type == NID_dsaWithSHA1) | ||
| 147 | { | ||
| 148 | /* special case: RFC 2459 tells us to omit 'parameters' | ||
| 149 | * with id-dsa-with-sha1 */ | ||
| 150 | ASN1_TYPE_free(a->parameter); | ||
| 151 | a->parameter = NULL; | ||
| 152 | } | ||
| 153 | else if ((a->parameter == NULL) || | ||
| 154 | (a->parameter->type != V_ASN1_NULL)) | ||
| 155 | { | ||
| 156 | ASN1_TYPE_free(a->parameter); | ||
| 157 | if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err; | ||
| 158 | a->parameter->type=V_ASN1_NULL; | ||
| 159 | } | ||
| 160 | ASN1_OBJECT_free(a->algorithm); | ||
| 161 | a->algorithm=OBJ_nid2obj(type->pkey_type); | ||
| 162 | if (a->algorithm == NULL) | ||
| 163 | { | ||
| 164 | ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE); | ||
| 165 | goto err; | ||
| 166 | } | ||
| 167 | if (a->algorithm->length == 0) | ||
| 168 | { | ||
| 169 | ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD); | ||
| 170 | goto err; | ||
| 171 | } | ||
| 172 | } | ||
| 173 | inl=i2d(data,NULL); | ||
| 174 | buf_in=(unsigned char *)OPENSSL_malloc((unsigned int)inl); | ||
| 175 | outll=outl=EVP_PKEY_size(pkey); | ||
| 176 | buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl); | ||
| 177 | if ((buf_in == NULL) || (buf_out == NULL)) | ||
| 178 | { | ||
| 179 | outl=0; | ||
| 180 | ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE); | ||
| 181 | goto err; | ||
| 182 | } | ||
| 183 | p=buf_in; | ||
| 184 | |||
| 185 | i2d(data,&p); | ||
| 186 | EVP_SignInit_ex(&ctx,type, NULL); | ||
| 187 | EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl); | ||
| 188 | if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out, | ||
| 189 | (unsigned int *)&outl,pkey)) | ||
| 190 | { | ||
| 191 | outl=0; | ||
| 192 | ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB); | ||
| 193 | goto err; | ||
| 194 | } | ||
| 195 | if (signature->data != NULL) OPENSSL_free(signature->data); | ||
| 196 | signature->data=buf_out; | ||
| 197 | buf_out=NULL; | ||
| 198 | signature->length=outl; | ||
| 199 | /* In the interests of compatibility, I'll make sure that | ||
| 200 | * the bit string has a 'not-used bits' value of 0 | ||
| 201 | */ | ||
| 202 | signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); | ||
| 203 | signature->flags|=ASN1_STRING_FLAG_BITS_LEFT; | ||
| 204 | err: | ||
| 205 | EVP_MD_CTX_cleanup(&ctx); | ||
| 206 | if (buf_in != NULL) | ||
| 207 | { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); } | ||
| 208 | if (buf_out != NULL) | ||
| 209 | { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); } | ||
| 210 | return(outl); | ||
| 211 | } | ||
| 212 | |||
| 213 | #endif | ||
| 214 | |||
| 215 | int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2, | ||
| 216 | ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey, | ||
| 217 | const EVP_MD *type) | ||
| 218 | { | ||
| 219 | EVP_MD_CTX ctx; | ||
| 220 | unsigned char *buf_in=NULL,*buf_out=NULL; | ||
| 221 | int i,inl=0,outl=0,outll=0; | ||
| 222 | X509_ALGOR *a; | ||
| 223 | |||
| 224 | EVP_MD_CTX_init(&ctx); | ||
| 225 | for (i=0; i<2; i++) | ||
| 226 | { | ||
| 227 | if (i == 0) | ||
| 228 | a=algor1; | ||
| 229 | else | ||
| 230 | a=algor2; | ||
| 231 | if (a == NULL) continue; | ||
| 232 | if (type->pkey_type == NID_dsaWithSHA1 || | ||
| 233 | type->pkey_type == NID_ecdsa_with_SHA1) | ||
| 234 | { | ||
| 235 | /* special case: RFC 3279 tells us to omit 'parameters' | ||
| 236 | * with id-dsa-with-sha1 and ecdsa-with-SHA1 */ | ||
| 237 | ASN1_TYPE_free(a->parameter); | ||
| 238 | a->parameter = NULL; | ||
| 239 | } | ||
| 240 | else if ((a->parameter == NULL) || | ||
| 241 | (a->parameter->type != V_ASN1_NULL)) | ||
| 242 | { | ||
| 243 | ASN1_TYPE_free(a->parameter); | ||
| 244 | if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err; | ||
| 245 | a->parameter->type=V_ASN1_NULL; | ||
| 246 | } | ||
| 247 | ASN1_OBJECT_free(a->algorithm); | ||
| 248 | a->algorithm=OBJ_nid2obj(type->pkey_type); | ||
| 249 | if (a->algorithm == NULL) | ||
| 250 | { | ||
| 251 | ASN1err(ASN1_F_ASN1_ITEM_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE); | ||
| 252 | goto err; | ||
| 253 | } | ||
| 254 | if (a->algorithm->length == 0) | ||
| 255 | { | ||
| 256 | ASN1err(ASN1_F_ASN1_ITEM_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD); | ||
| 257 | goto err; | ||
| 258 | } | ||
| 259 | } | ||
| 260 | inl=ASN1_item_i2d(asn,&buf_in, it); | ||
| 261 | outll=outl=EVP_PKEY_size(pkey); | ||
| 262 | buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl); | ||
| 263 | if ((buf_in == NULL) || (buf_out == NULL)) | ||
| 264 | { | ||
| 265 | outl=0; | ||
| 266 | ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_MALLOC_FAILURE); | ||
| 267 | goto err; | ||
| 268 | } | ||
| 269 | |||
| 270 | EVP_SignInit_ex(&ctx,type, NULL); | ||
| 271 | EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl); | ||
| 272 | if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out, | ||
| 273 | (unsigned int *)&outl,pkey)) | ||
| 274 | { | ||
| 275 | outl=0; | ||
| 276 | ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_EVP_LIB); | ||
| 277 | goto err; | ||
| 278 | } | ||
| 279 | if (signature->data != NULL) OPENSSL_free(signature->data); | ||
| 280 | signature->data=buf_out; | ||
| 281 | buf_out=NULL; | ||
| 282 | signature->length=outl; | ||
| 283 | /* In the interests of compatibility, I'll make sure that | ||
| 284 | * the bit string has a 'not-used bits' value of 0 | ||
| 285 | */ | ||
| 286 | signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); | ||
| 287 | signature->flags|=ASN1_STRING_FLAG_BITS_LEFT; | ||
| 288 | err: | ||
| 289 | EVP_MD_CTX_cleanup(&ctx); | ||
| 290 | if (buf_in != NULL) | ||
| 291 | { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); } | ||
| 292 | if (buf_out != NULL) | ||
| 293 | { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); } | ||
| 294 | return(outl); | ||
| 295 | } | ||
