crypto/openssl-0.9.7d/crypto/pkcs12/p12_crpt.c

   1 /* p12_crpt.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 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/pkcs12.h>
  62
  63 /* PKCS#12 specific PBE functions */
  64
  65 void PKCS12_PBE_add(void)
  66 {
  67 #ifndef OPENSSL_NO_RC4
  68 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
  69                                                          PKCS12_PBE_keyivgen);
  70 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
  71                                                          PKCS12_PBE_keyivgen);
  72 #endif
  73 #ifndef OPENSSL_NO_DES
  74 EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
  75                         EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
  76 EVP_PBE_alg_add(NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
  77                         EVP_des_ede_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
  78 #endif
  79 #ifndef OPENSSL_NO_RC2
  80 EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
  81                                         EVP_sha1(), PKCS12_PBE_keyivgen);
  82 EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
  83                                         EVP_sha1(), PKCS12_PBE_keyivgen);
  84 #endif
  85 }
  86
  87 int PKCS12_PBE_keyivgen (EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
  88                 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de)
  89 {
  90         PBEPARAM *pbe;
  91         int saltlen, iter;
  92         unsigned char *salt, *pbuf;
  93         unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
  94
  95         /* Extract useful info from parameter */
  96         pbuf = param->value.sequence->data;
  97         if (!param || (param->type != V_ASN1_SEQUENCE) ||
  98            !(pbe = d2i_PBEPARAM (NULL, &pbuf, param->value.sequence->length))) {
  99                 EVPerr(PKCS12_F_PKCS12_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
 100                 return 0;
 101         }
 102
 103         if (!pbe->iter) iter = 1;
 104         else iter = ASN1_INTEGER_get (pbe->iter);
 105         salt = pbe->salt->data;
 106         saltlen = pbe->salt->length;
 107         if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_KEY_ID,
 108                              iter, EVP_CIPHER_key_length(cipher), key, md)) {
 109                 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_KEY_GEN_ERROR);
 110                 PBEPARAM_free(pbe);
 111                 return 0;
 112         }
 113         if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_IV_ID,
 114                                 iter, EVP_CIPHER_iv_length(cipher), iv, md)) {
 115                 PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_IV_GEN_ERROR);
 116                 PBEPARAM_free(pbe);
 117                 return 0;
 118         }
 119         PBEPARAM_free(pbe);
 120         EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
 121         OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
 122         OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
 123         return 1;
 124 }