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| author | cvs2svn <admin@example.com> | 2013-02-14 15:11:45 +0000 |
|---|---|---|
| committer | cvs2svn <admin@example.com> | 2013-02-14 15:11:45 +0000 |
| commit | 6f78006c046d1db00c07d2f9ba014243246a84cc (patch) | |
| tree | c1e76e693e8d7ff23b9f398e8e4b2470ff4fa565 /src/lib/libcrypto/evp/p5_crpt2.c | |
| parent | 4383d44ca79eba8836d9f92c612c44ba8aeb87bd (diff) | |
| download | openbsd-OPENBSD_5_3_BASE.tar.gz openbsd-OPENBSD_5_3_BASE.tar.bz2 openbsd-OPENBSD_5_3_BASE.zip | |
This commit was manufactured by cvs2git to create tag 'OPENBSD_5_3_BASE'.OPENBSD_5_3_BASE
Diffstat (limited to 'src/lib/libcrypto/evp/p5_crpt2.c')
| -rw-r--r-- | src/lib/libcrypto/evp/p5_crpt2.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/src/lib/libcrypto/evp/p5_crpt2.c b/src/lib/libcrypto/evp/p5_crpt2.c deleted file mode 100644 index 975d004df4..0000000000 --- a/src/lib/libcrypto/evp/p5_crpt2.c +++ /dev/null | |||
| @@ -1,322 +0,0 @@ | |||
| 1 | /* p5_crpt2.c */ | ||
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | ||
| 3 | * project 1999. | ||
| 4 | */ | ||
| 5 | /* ==================================================================== | ||
| 6 | * Copyright (c) 1999-2006 The OpenSSL Project. All rights reserved. | ||
| 7 | * | ||
| 8 | * Redistribution and use in source and binary forms, with or without | ||
| 9 | * modification, are permitted provided that the following conditions | ||
| 10 | * are met: | ||
| 11 | * | ||
| 12 | * 1. Redistributions of source code must retain the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer. | ||
| 14 | * | ||
| 15 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 16 | * notice, this list of conditions and the following disclaimer in | ||
| 17 | * the documentation and/or other materials provided with the | ||
| 18 | * distribution. | ||
| 19 | * | ||
| 20 | * 3. All advertising materials mentioning features or use of this | ||
| 21 | * software must display the following acknowledgment: | ||
| 22 | * "This product includes software developed by the OpenSSL Project | ||
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | ||
| 24 | * | ||
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 26 | * endorse or promote products derived from this software without | ||
| 27 | * prior written permission. For written permission, please contact | ||
| 28 | * licensing@OpenSSL.org. | ||
| 29 | * | ||
| 30 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 31 | * nor may "OpenSSL" appear in their names without prior written | ||
| 32 | * permission of the OpenSSL Project. | ||
| 33 | * | ||
| 34 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 35 | * acknowledgment: | ||
| 36 | * "This product includes software developed by the OpenSSL Project | ||
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | ||
| 38 | * | ||
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 51 | * ==================================================================== | ||
| 52 | * | ||
| 53 | * This product includes cryptographic software written by Eric Young | ||
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 55 | * Hudson (tjh@cryptsoft.com). | ||
| 56 | * | ||
| 57 | */ | ||
| 58 | #include <stdio.h> | ||
| 59 | #include <stdlib.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #if !defined(OPENSSL_NO_HMAC) && !defined(OPENSSL_NO_SHA) | ||
| 62 | #include <openssl/x509.h> | ||
| 63 | #include <openssl/evp.h> | ||
| 64 | #include <openssl/hmac.h> | ||
| 65 | #include "evp_locl.h" | ||
| 66 | |||
| 67 | /* set this to print out info about the keygen algorithm */ | ||
| 68 | /* #define DEBUG_PKCS5V2 */ | ||
| 69 | |||
| 70 | #ifdef DEBUG_PKCS5V2 | ||
| 71 | static void h__dump (const unsigned char *p, int len); | ||
| 72 | #endif | ||
| 73 | |||
| 74 | /* This is an implementation of PKCS#5 v2.0 password based encryption key | ||
| 75 | * derivation function PBKDF2. | ||
| 76 | * SHA1 version verified against test vectors posted by Peter Gutmann | ||
| 77 | * <pgut001@cs.auckland.ac.nz> to the PKCS-TNG <pkcs-tng@rsa.com> mailing list. | ||
| 78 | */ | ||
| 79 | |||
| 80 | int PKCS5_PBKDF2_HMAC(const char *pass, int passlen, | ||
| 81 | const unsigned char *salt, int saltlen, int iter, | ||
| 82 | const EVP_MD *digest, | ||
| 83 | int keylen, unsigned char *out) | ||
| 84 | { | ||
| 85 | unsigned char digtmp[EVP_MAX_MD_SIZE], *p, itmp[4]; | ||
| 86 | int cplen, j, k, tkeylen, mdlen; | ||
| 87 | unsigned long i = 1; | ||
| 88 | HMAC_CTX hctx; | ||
| 89 | |||
| 90 | mdlen = EVP_MD_size(digest); | ||
| 91 | if (mdlen < 0) | ||
| 92 | return 0; | ||
| 93 | |||
| 94 | HMAC_CTX_init(&hctx); | ||
| 95 | p = out; | ||
| 96 | tkeylen = keylen; | ||
| 97 | if(!pass) | ||
| 98 | passlen = 0; | ||
| 99 | else if(passlen == -1) | ||
| 100 | passlen = strlen(pass); | ||
| 101 | while(tkeylen) | ||
| 102 | { | ||
| 103 | if(tkeylen > mdlen) | ||
| 104 | cplen = mdlen; | ||
| 105 | else | ||
| 106 | cplen = tkeylen; | ||
| 107 | /* We are unlikely to ever use more than 256 blocks (5120 bits!) | ||
| 108 | * but just in case... | ||
| 109 | */ | ||
| 110 | itmp[0] = (unsigned char)((i >> 24) & 0xff); | ||
| 111 | itmp[1] = (unsigned char)((i >> 16) & 0xff); | ||
| 112 | itmp[2] = (unsigned char)((i >> 8) & 0xff); | ||
| 113 | itmp[3] = (unsigned char)(i & 0xff); | ||
| 114 | if (!HMAC_Init_ex(&hctx, pass, passlen, digest, NULL) | ||
| 115 | || !HMAC_Update(&hctx, salt, saltlen) | ||
| 116 | || !HMAC_Update(&hctx, itmp, 4) | ||
| 117 | || !HMAC_Final(&hctx, digtmp, NULL)) | ||
| 118 | { | ||
| 119 | HMAC_CTX_cleanup(&hctx); | ||
| 120 | return 0; | ||
| 121 | } | ||
| 122 | memcpy(p, digtmp, cplen); | ||
| 123 | for(j = 1; j < iter; j++) | ||
| 124 | { | ||
| 125 | HMAC(digest, pass, passlen, | ||
| 126 | digtmp, mdlen, digtmp, NULL); | ||
| 127 | for(k = 0; k < cplen; k++) | ||
| 128 | p[k] ^= digtmp[k]; | ||
| 129 | } | ||
| 130 | tkeylen-= cplen; | ||
| 131 | i++; | ||
| 132 | p+= cplen; | ||
| 133 | } | ||
| 134 | HMAC_CTX_cleanup(&hctx); | ||
| 135 | #ifdef DEBUG_PKCS5V2 | ||
| 136 | fprintf(stderr, "Password:\n"); | ||
| 137 | h__dump (pass, passlen); | ||
| 138 | fprintf(stderr, "Salt:\n"); | ||
| 139 | h__dump (salt, saltlen); | ||
| 140 | fprintf(stderr, "Iteration count %d\n", iter); | ||
| 141 | fprintf(stderr, "Key:\n"); | ||
| 142 | h__dump (out, keylen); | ||
| 143 | #endif | ||
| 144 | return 1; | ||
| 145 | } | ||
| 146 | |||
| 147 | int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen, | ||
| 148 | const unsigned char *salt, int saltlen, int iter, | ||
| 149 | int keylen, unsigned char *out) | ||
| 150 | { | ||
| 151 | return PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, iter, EVP_sha1(), | ||
| 152 | keylen, out); | ||
| 153 | } | ||
| 154 | |||
| 155 | #ifdef DO_TEST | ||
| 156 | main() | ||
| 157 | { | ||
| 158 | unsigned char out[4]; | ||
| 159 | unsigned char salt[] = {0x12, 0x34, 0x56, 0x78}; | ||
| 160 | PKCS5_PBKDF2_HMAC_SHA1("password", -1, salt, 4, 5, 4, out); | ||
| 161 | fprintf(stderr, "Out %02X %02X %02X %02X\n", | ||
| 162 | out[0], out[1], out[2], out[3]); | ||
| 163 | } | ||
| 164 | |||
| 165 | #endif | ||
| 166 | |||
| 167 | /* Now the key derivation function itself. This is a bit evil because | ||
| 168 | * it has to check the ASN1 parameters are valid: and there are quite a | ||
| 169 | * few of them... | ||
| 170 | */ | ||
| 171 | |||
| 172 | int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, | ||
| 173 | ASN1_TYPE *param, const EVP_CIPHER *c, const EVP_MD *md, | ||
| 174 | int en_de) | ||
| 175 | { | ||
| 176 | const unsigned char *pbuf; | ||
| 177 | int plen; | ||
| 178 | PBE2PARAM *pbe2 = NULL; | ||
| 179 | const EVP_CIPHER *cipher; | ||
| 180 | |||
| 181 | int rv = 0; | ||
| 182 | |||
| 183 | if (param == NULL || param->type != V_ASN1_SEQUENCE || | ||
| 184 | param->value.sequence == NULL) { | ||
| 185 | EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); | ||
| 186 | goto err; | ||
| 187 | } | ||
| 188 | |||
| 189 | pbuf = param->value.sequence->data; | ||
| 190 | plen = param->value.sequence->length; | ||
| 191 | if(!(pbe2 = d2i_PBE2PARAM(NULL, &pbuf, plen))) { | ||
| 192 | EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,EVP_R_DECODE_ERROR); | ||
| 193 | goto err; | ||
| 194 | } | ||
| 195 | |||
| 196 | /* See if we recognise the key derivation function */ | ||
| 197 | |||
| 198 | if(OBJ_obj2nid(pbe2->keyfunc->algorithm) != NID_id_pbkdf2) { | ||
| 199 | EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, | ||
| 200 | EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION); | ||
| 201 | goto err; | ||
| 202 | } | ||
| 203 | |||
| 204 | /* lets see if we recognise the encryption algorithm. | ||
| 205 | */ | ||
| 206 | |||
| 207 | cipher = EVP_get_cipherbyobj(pbe2->encryption->algorithm); | ||
| 208 | |||
| 209 | if(!cipher) { | ||
| 210 | EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, | ||
| 211 | EVP_R_UNSUPPORTED_CIPHER); | ||
| 212 | goto err; | ||
| 213 | } | ||
| 214 | |||
| 215 | /* Fixup cipher based on AlgorithmIdentifier */ | ||
| 216 | if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, en_de)) | ||
| 217 | goto err; | ||
| 218 | if(EVP_CIPHER_asn1_to_param(ctx, pbe2->encryption->parameter) < 0) { | ||
| 219 | EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN, | ||
| 220 | EVP_R_CIPHER_PARAMETER_ERROR); | ||
| 221 | goto err; | ||
| 222 | } | ||
| 223 | rv = PKCS5_v2_PBKDF2_keyivgen(ctx, pass, passlen, | ||
| 224 | pbe2->keyfunc->parameter, c, md, en_de); | ||
| 225 | err: | ||
| 226 | PBE2PARAM_free(pbe2); | ||
| 227 | return rv; | ||
| 228 | } | ||
| 229 | |||
| 230 | int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, | ||
| 231 | ASN1_TYPE *param, | ||
| 232 | const EVP_CIPHER *c, const EVP_MD *md, int en_de) | ||
| 233 | { | ||
| 234 | unsigned char *salt, key[EVP_MAX_KEY_LENGTH]; | ||
| 235 | const unsigned char *pbuf; | ||
| 236 | int saltlen, iter, plen; | ||
| 237 | int rv = 0; | ||
| 238 | unsigned int keylen = 0; | ||
| 239 | int prf_nid, hmac_md_nid; | ||
| 240 | PBKDF2PARAM *kdf = NULL; | ||
| 241 | const EVP_MD *prfmd; | ||
| 242 | |||
| 243 | if (EVP_CIPHER_CTX_cipher(ctx) == NULL) | ||
| 244 | { | ||
| 245 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN,EVP_R_NO_CIPHER_SET); | ||
| 246 | goto err; | ||
| 247 | } | ||
| 248 | keylen = EVP_CIPHER_CTX_key_length(ctx); | ||
| 249 | OPENSSL_assert(keylen <= sizeof key); | ||
| 250 | |||
| 251 | /* Decode parameter */ | ||
| 252 | |||
| 253 | if(!param || (param->type != V_ASN1_SEQUENCE)) | ||
| 254 | { | ||
| 255 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN,EVP_R_DECODE_ERROR); | ||
| 256 | goto err; | ||
| 257 | } | ||
| 258 | |||
| 259 | pbuf = param->value.sequence->data; | ||
| 260 | plen = param->value.sequence->length; | ||
| 261 | |||
| 262 | if(!(kdf = d2i_PBKDF2PARAM(NULL, &pbuf, plen)) ) { | ||
| 263 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN,EVP_R_DECODE_ERROR); | ||
| 264 | goto err; | ||
| 265 | } | ||
| 266 | |||
| 267 | keylen = EVP_CIPHER_CTX_key_length(ctx); | ||
| 268 | |||
| 269 | /* Now check the parameters of the kdf */ | ||
| 270 | |||
| 271 | if(kdf->keylength && (ASN1_INTEGER_get(kdf->keylength) != (int)keylen)){ | ||
| 272 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN, | ||
| 273 | EVP_R_UNSUPPORTED_KEYLENGTH); | ||
| 274 | goto err; | ||
| 275 | } | ||
| 276 | |||
| 277 | if (kdf->prf) | ||
| 278 | prf_nid = OBJ_obj2nid(kdf->prf->algorithm); | ||
| 279 | else | ||
| 280 | prf_nid = NID_hmacWithSHA1; | ||
| 281 | |||
| 282 | if (!EVP_PBE_find(EVP_PBE_TYPE_PRF, prf_nid, NULL, &hmac_md_nid, 0)) | ||
| 283 | { | ||
| 284 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN, EVP_R_UNSUPPORTED_PRF); | ||
| 285 | goto err; | ||
| 286 | } | ||
| 287 | |||
| 288 | prfmd = EVP_get_digestbynid(hmac_md_nid); | ||
| 289 | if (prfmd == NULL) | ||
| 290 | { | ||
| 291 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN, EVP_R_UNSUPPORTED_PRF); | ||
| 292 | goto err; | ||
| 293 | } | ||
| 294 | |||
| 295 | if(kdf->salt->type != V_ASN1_OCTET_STRING) { | ||
| 296 | EVPerr(EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN, | ||
| 297 | EVP_R_UNSUPPORTED_SALT_TYPE); | ||
| 298 | goto err; | ||
| 299 | } | ||
| 300 | |||
| 301 | /* it seems that its all OK */ | ||
| 302 | salt = kdf->salt->value.octet_string->data; | ||
| 303 | saltlen = kdf->salt->value.octet_string->length; | ||
| 304 | iter = ASN1_INTEGER_get(kdf->iter); | ||
| 305 | if(!PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, iter, prfmd, | ||
| 306 | keylen, key)) | ||
| 307 | goto err; | ||
| 308 | rv = EVP_CipherInit_ex(ctx, NULL, NULL, key, NULL, en_de); | ||
| 309 | err: | ||
| 310 | OPENSSL_cleanse(key, keylen); | ||
| 311 | PBKDF2PARAM_free(kdf); | ||
| 312 | return rv; | ||
| 313 | } | ||
| 314 | |||
| 315 | #ifdef DEBUG_PKCS5V2 | ||
| 316 | static void h__dump (const unsigned char *p, int len) | ||
| 317 | { | ||
| 318 | for (; len --; p++) fprintf(stderr, "%02X ", *p); | ||
| 319 | fprintf(stderr, "\n"); | ||
| 320 | } | ||
| 321 | #endif | ||
| 322 | #endif | ||
