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| 1 /* p12_decr.c */ | |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 /* Define this to dump decrypted output to files called DERnnn */ | |
| 64 /*#define DEBUG_DECRYPT*/ | |
| 65 | |
| 66 | |
| 67 /* Encrypt/Decrypt a buffer based on password and algor, result in a | |
| 68 * OPENSSL_malloc'ed buffer | |
| 69 */ | |
| 70 | |
| 71 unsigned char * PKCS12_pbe_crypt(X509_ALGOR *algor, const char *pass, | |
| 72 int passlen, unsigned char *in, int inlen, unsigned char **data, | |
| 73 int *datalen, int en_de) | |
| 74 { | |
| 75 unsigned char *out; | |
| 76 int outlen, i; | |
| 77 EVP_CIPHER_CTX ctx; | |
| 78 | |
| 79 EVP_CIPHER_CTX_init(&ctx); | |
| 80 /* Decrypt data */ | |
| 81 if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen, | |
| 82 algor->parameter, &ctx, en_de)) { | |
| 83 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_ALGOR_CIPHER
INIT_ERROR); | |
| 84 return NULL; | |
| 85 } | |
| 86 | |
| 87 if(!(out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) { | |
| 88 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,ERR_R_MALLOC_FAILURE); | |
| 89 goto err; | |
| 90 } | |
| 91 | |
| 92 if (!EVP_CipherUpdate(&ctx, out, &i, in, inlen)) | |
| 93 { | |
| 94 OPENSSL_free(out); | |
| 95 out = NULL; | |
| 96 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,ERR_R_EVP_LIB); | |
| 97 goto err; | |
| 98 } | |
| 99 | |
| 100 outlen = i; | |
| 101 if(!EVP_CipherFinal_ex(&ctx, out + i, &i)) { | |
| 102 OPENSSL_free(out); | |
| 103 out = NULL; | |
| 104 PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_CIPHERFINAL_
ERROR); | |
| 105 goto err; | |
| 106 } | |
| 107 outlen += i; | |
| 108 if (datalen) *datalen = outlen; | |
| 109 if (data) *data = out; | |
| 110 err: | |
| 111 EVP_CIPHER_CTX_cleanup(&ctx); | |
| 112 return out; | |
| 113 | |
| 114 } | |
| 115 | |
| 116 /* Decrypt an OCTET STRING and decode ASN1 structure | |
| 117 * if zbuf set zero buffer after use. | |
| 118 */ | |
| 119 | |
| 120 void * PKCS12_item_decrypt_d2i(X509_ALGOR *algor, const ASN1_ITEM *it, | |
| 121 const char *pass, int passlen, ASN1_OCTET_STRING *oct, int zbuf) | |
| 122 { | |
| 123 unsigned char *out; | |
| 124 const unsigned char *p; | |
| 125 void *ret; | |
| 126 int outlen; | |
| 127 | |
| 128 if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length, | |
| 129 &out, &outlen, 0)) { | |
| 130 PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,PKCS12_R_PKCS12_PBE_C
RYPT_ERROR); | |
| 131 return NULL; | |
| 132 } | |
| 133 p = out; | |
| 134 #ifdef DEBUG_DECRYPT | |
| 135 { | |
| 136 FILE *op; | |
| 137 | |
| 138 char fname[30]; | |
| 139 static int fnm = 1; | |
| 140 sprintf(fname, "DER%d", fnm++); | |
| 141 op = fopen(fname, "wb"); | |
| 142 fwrite (p, 1, outlen, op); | |
| 143 fclose(op); | |
| 144 } | |
| 145 #endif | |
| 146 ret = ASN1_item_d2i(NULL, &p, outlen, it); | |
| 147 if (zbuf) OPENSSL_cleanse(out, outlen); | |
| 148 if(!ret) PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,PKCS12_R_DECODE_ERRO
R); | |
| 149 OPENSSL_free(out); | |
| 150 return ret; | |
| 151 } | |
| 152 | |
| 153 /* Encode ASN1 structure and encrypt, return OCTET STRING | |
| 154 * if zbuf set zero encoding. | |
| 155 */ | |
| 156 | |
| 157 ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor, const ASN1_ITEM *i
t, | |
| 158 const char *pass, int passlen, | |
| 159 void *obj, int zbuf) | |
| 160 { | |
| 161 ASN1_OCTET_STRING *oct; | |
| 162 unsigned char *in = NULL; | |
| 163 int inlen; | |
| 164 if (!(oct = M_ASN1_OCTET_STRING_new ())) { | |
| 165 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,ERR_R_MALLOC_FAILURE)
; | |
| 166 return NULL; | |
| 167 } | |
| 168 inlen = ASN1_item_i2d(obj, &in, it); | |
| 169 if (!in) { | |
| 170 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,PKCS12_R_ENCODE_ERROR
); | |
| 171 return NULL; | |
| 172 } | |
| 173 if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data, | |
| 174 &oct->length, 1)) { | |
| 175 PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT,PKCS12_R_ENCRYPT_ERRO
R); | |
| 176 OPENSSL_free(in); | |
| 177 return NULL; | |
| 178 } | |
| 179 if (zbuf) OPENSSL_cleanse(in, inlen); | |
| 180 OPENSSL_free(in); | |
| 181 return oct; | |
| 182 } | |
| 183 | |
| 184 IMPLEMENT_PKCS12_STACK_OF(PKCS7) | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master