crypto/evp/evp_pbe.c

   1 /* evp_pbe.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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
  67 DECLARE_STACK_OF(EVP_PBE_CTL);
  68 static STACK_OF(EVP_PBE_CTL) *pbe_algs;
  69
  70 /* Setup a cipher context from a PBE algorithm */
  71
  72 typedef 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
  81 static 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
 124 int 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
 150 int 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                 cipher = EVP_get_cipherbynid(cipher_nid);
 178
 179         if (md_nid == -1)
 180                 md = NULL;
 181         else
 182                 md = EVP_get_digestbynid(md_nid);
 183
 184         if (!keygen(ctx, pass, passlen, param, cipher, md, en_de))
 185                 {
 186                 EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
 187                 return 0;
 188                 }
 189         return 1;
 190 }
 191
 192 static int pbe_cmp2(const void *a, const void *b)
 193         {
 194         const EVP_PBE_CTL *pbe1 = a;
 195         const EVP_PBE_CTL *pbe2 = b;
 196         int ret = pbe1->pbe_type - pbe2->pbe_type;
 197         if (ret)
 198                 return ret;
 199         else
 200                 return pbe1->pbe_nid - pbe2->pbe_nid;
 201         }
 202
 203 static int pbe_cmp(const EVP_PBE_CTL * const *a, const EVP_PBE_CTL * const *b)
 204         {
 205         int ret = (*a)->pbe_type - (*b)->pbe_type;
 206         if (ret)
 207                 return ret;
 208         else
 209                 return (*a)->pbe_nid - (*b)->pbe_nid;
 210         }
 211
 212 /* Add a PBE algorithm */
 213
 214 int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
 215                          EVP_PBE_KEYGEN *keygen)
 216         {
 217         EVP_PBE_CTL *pbe_tmp;
 218         if (!pbe_algs)
 219                 pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
 220         if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL))))
 221                 {
 222                 EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE,ERR_R_MALLOC_FAILURE);
 223                 return 0;
 224                 }
 225         pbe_tmp->pbe_type = pbe_type;
 226         pbe_tmp->pbe_nid = pbe_nid;
 227         pbe_tmp->cipher_nid = cipher_nid;
 228         pbe_tmp->md_nid = md_nid;
 229         pbe_tmp->keygen = keygen;
 230
 231
 232         sk_EVP_PBE_CTL_push (pbe_algs, pbe_tmp);
 233         return 1;
 234         }
 235
 236 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
 237                     EVP_PBE_KEYGEN *keygen)
 238         {
 239         int cipher_nid, md_nid;
 240         if (cipher)
 241                 cipher_nid = EVP_CIPHER_type(cipher);
 242         else
 243                 cipher_nid = -1;
 244         if (md)
 245                 md_nid = EVP_MD_type(md);
 246         else
 247                 md_nid = -1;
 248
 249         return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
 250                                         cipher_nid, md_nid, keygen);
 251         }
 252
 253 int EVP_PBE_find(int type, int pbe_nid,
 254                  int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen)
 255         {
 256         EVP_PBE_CTL *pbetmp = NULL, pbelu;
 257         int i;
 258         if (pbe_nid == NID_undef)
 259                 return 0;
 260
 261         pbelu.pbe_type = type;
 262         pbelu.pbe_nid = pbe_nid;
 263
 264         if (pbe_algs)
 265                 {
 266                 i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
 267                 if (i != -1)
 268                         pbetmp = sk_EVP_PBE_CTL_value (pbe_algs, i);
 269                 }
 270         if (pbetmp == NULL)
 271                 {
 272                 pbetmp = (EVP_PBE_CTL *) OBJ_bsearch((char *)&pbelu,
 273                         (char *)builtin_pbe,
 274                         sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL),
 275                         sizeof(EVP_PBE_CTL),
 276                         pbe_cmp2);
 277                 }
 278         if (pbetmp == NULL)
 279                 return 0;
 280         if (pcnid)
 281                 *pcnid = pbetmp->cipher_nid;
 282         if (pmnid)
 283                 *pmnid = pbetmp->md_nid;
 284         if (pkeygen)
 285                 *pkeygen = pbetmp->keygen;
 286         return 1;
 287         }
 288
 289 static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
 290          {
 291          OPENSSL_freeFunc(pbe);
 292          }
 293
 294 void EVP_PBE_cleanup(void)
 295         {
 296         sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
 297         pbe_algs = NULL;
 298         }