1/* evp_pbe.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 59#include <stdio.h> 60#include "cryptlib.h" 61#include <openssl/evp.h> 62#include <openssl/pkcs12.h> 63#include <openssl/x509.h> 64 65/* Password based encryption (PBE) functions */ 66 67DECLARE_STACK_OF(EVP_PBE_CTL) 68static STACK_OF(EVP_PBE_CTL) *pbe_algs; 69 70/* Setup a cipher context from a PBE algorithm */ 71 72typedef struct 73 { 74 int pbe_type; 75 int pbe_nid; 76 int cipher_nid; 77 int md_nid; 78 EVP_PBE_KEYGEN *keygen; 79 } EVP_PBE_CTL; 80 81static const EVP_PBE_CTL builtin_pbe[] = 82 { 83 {EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC, 84 NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen}, 85 {EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC, 86 NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen}, 87 {EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC, 88 NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen}, 89 90 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4, 91 NID_rc4, NID_sha1, PKCS12_PBE_keyivgen}, 92 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4, 93 NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen}, 94 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC, 95 NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen}, 96 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC, 97 NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen}, 98 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC, 99 NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen}, 100 {EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC, 101 NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen}, 102 103#ifndef OPENSSL_NO_HMAC 104 {EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen}, 105#endif 106 {EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC, 107 NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen}, 108 {EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC, 109 NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen}, 110 {EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC, 111 NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen}, 112 113 114 {EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0}, 115 {EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0}, 116 {EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0}, 117 {EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0}, 118 {EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0}, 119 {EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0}, 120 {EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0}, 121 }; 122 123#ifdef TEST 124int main(int argc, char **argv) 125 { 126 int i, nid_md, nid_cipher; 127 EVP_PBE_CTL *tpbe, *tpbe2; 128 /*OpenSSL_add_all_algorithms();*/ 129 130 for (i = 0; i < sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL); i++) 131 { 132 tpbe = builtin_pbe + i; 133 fprintf(stderr, "%d %d %s ", tpbe->pbe_type, tpbe->pbe_nid, 134 OBJ_nid2sn(tpbe->pbe_nid)); 135 if (EVP_PBE_find(tpbe->pbe_type, tpbe->pbe_nid, 136 &nid_cipher ,&nid_md,0)) 137 fprintf(stderr, "Found %s %s\n", 138 OBJ_nid2sn(nid_cipher), 139 OBJ_nid2sn(nid_md)); 140 else 141 fprintf(stderr, "Find ERROR!!\n"); 142 } 143 144 return 0; 145 } 146#endif 147 148 149 150int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen, 151 ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de) 152 { 153 const EVP_CIPHER *cipher; 154 const EVP_MD *md; 155 int cipher_nid, md_nid; 156 EVP_PBE_KEYGEN *keygen; 157 158 if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj), 159 &cipher_nid, &md_nid, &keygen)) 160 { 161 char obj_tmp[80]; 162 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM); 163 if (!pbe_obj) BUF_strlcpy (obj_tmp, "NULL", sizeof obj_tmp); 164 else i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj); 165 ERR_add_error_data(2, "TYPE=", obj_tmp); 166 return 0; 167 } 168 169 if(!pass) 170 passlen = 0; 171 else if (passlen == -1) 172 passlen = strlen(pass); 173 174 if (cipher_nid == -1) 175 cipher = NULL; 176 else 177 { 178 cipher = EVP_get_cipherbynid(cipher_nid); 179 if (!cipher) 180 { 181 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_CIPHER); 182 return 0; 183 } 184 } 185 186 if (md_nid == -1) 187 md = NULL; 188 else 189 { 190 md = EVP_get_digestbynid(md_nid); 191 if (!md) 192 { 193 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_DIGEST); 194 return 0; 195 } 196 } 197 198 if (!keygen(ctx, pass, passlen, param, cipher, md, en_de)) 199 { 200 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE); 201 return 0; 202 } 203 return 1; 204} 205 206DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2); 207 208static int pbe2_cmp(const EVP_PBE_CTL *pbe1, const EVP_PBE_CTL *pbe2) 209 { 210 int ret = pbe1->pbe_type - pbe2->pbe_type; 211 if (ret) 212 return ret; 213 else 214 return pbe1->pbe_nid - pbe2->pbe_nid; 215 } 216 217IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2); 218 219static int pbe_cmp(const EVP_PBE_CTL * const *a, const EVP_PBE_CTL * const *b) 220 { 221 int ret = (*a)->pbe_type - (*b)->pbe_type; 222 if (ret) 223 return ret; 224 else 225 return (*a)->pbe_nid - (*b)->pbe_nid; 226 } 227 228/* Add a PBE algorithm */ 229 230int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid, 231 EVP_PBE_KEYGEN *keygen) 232 { 233 EVP_PBE_CTL *pbe_tmp; 234 if (!pbe_algs) 235 pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp); 236 if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL)))) 237 { 238 EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE,ERR_R_MALLOC_FAILURE); 239 return 0; 240 } 241 pbe_tmp->pbe_type = pbe_type; 242 pbe_tmp->pbe_nid = pbe_nid; 243 pbe_tmp->cipher_nid = cipher_nid; 244 pbe_tmp->md_nid = md_nid; 245 pbe_tmp->keygen = keygen; 246 247 248 sk_EVP_PBE_CTL_push (pbe_algs, pbe_tmp); 249 return 1; 250 } 251 252int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md, 253 EVP_PBE_KEYGEN *keygen) 254 { 255 int cipher_nid, md_nid; 256 if (cipher) 257 cipher_nid = EVP_CIPHER_nid(cipher); 258 else 259 cipher_nid = -1; 260 if (md) 261 md_nid = EVP_MD_type(md); 262 else 263 md_nid = -1; 264 265 return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid, 266 cipher_nid, md_nid, keygen); 267 } 268 269int EVP_PBE_find(int type, int pbe_nid, 270 int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen) 271 { 272 EVP_PBE_CTL *pbetmp = NULL, pbelu; 273 int i; 274 if (pbe_nid == NID_undef) 275 return 0; 276 277 pbelu.pbe_type = type; 278 pbelu.pbe_nid = pbe_nid; 279 280 if (pbe_algs) 281 { 282 i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu); 283 if (i != -1) 284 pbetmp = sk_EVP_PBE_CTL_value (pbe_algs, i); 285 } 286 if (pbetmp == NULL) 287 { 288 pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe, 289 sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL)); 290 } 291 if (pbetmp == NULL) 292 return 0; 293 if (pcnid) 294 *pcnid = pbetmp->cipher_nid; 295 if (pmnid) 296 *pmnid = pbetmp->md_nid; 297 if (pkeygen) 298 *pkeygen = pbetmp->keygen; 299 return 1; 300 } 301 302static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe) 303 { 304 OPENSSL_freeFunc(pbe); 305 } 306 307void EVP_PBE_cleanup(void) 308 { 309 sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl); 310 pbe_algs = NULL; 311 } 312