1*0Sstevel@tonic-gate /* p12_decr.c */ 2*0Sstevel@tonic-gate /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL 3*0Sstevel@tonic-gate * project 1999. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate /* ==================================================================== 6*0Sstevel@tonic-gate * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7*0Sstevel@tonic-gate * 8*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 9*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 10*0Sstevel@tonic-gate * are met: 11*0Sstevel@tonic-gate * 12*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 13*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 14*0Sstevel@tonic-gate * 15*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in 17*0Sstevel@tonic-gate * the documentation and/or other materials provided with the 18*0Sstevel@tonic-gate * distribution. 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this 21*0Sstevel@tonic-gate * software must display the following acknowledgment: 22*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 23*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26*0Sstevel@tonic-gate * endorse or promote products derived from this software without 27*0Sstevel@tonic-gate * prior written permission. For written permission, please contact 28*0Sstevel@tonic-gate * licensing@OpenSSL.org. 29*0Sstevel@tonic-gate * 30*0Sstevel@tonic-gate * 5. Products derived from this software may not be called "OpenSSL" 31*0Sstevel@tonic-gate * nor may "OpenSSL" appear in their names without prior written 32*0Sstevel@tonic-gate * permission of the OpenSSL Project. 33*0Sstevel@tonic-gate * 34*0Sstevel@tonic-gate * 6. Redistributions of any form whatsoever must retain the following 35*0Sstevel@tonic-gate * acknowledgment: 36*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 37*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38*0Sstevel@tonic-gate * 39*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40*0Sstevel@tonic-gate * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42*0Sstevel@tonic-gate * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43*0Sstevel@tonic-gate * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44*0Sstevel@tonic-gate * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45*0Sstevel@tonic-gate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46*0Sstevel@tonic-gate * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48*0Sstevel@tonic-gate * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49*0Sstevel@tonic-gate * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50*0Sstevel@tonic-gate * OF THE POSSIBILITY OF SUCH DAMAGE. 51*0Sstevel@tonic-gate * ==================================================================== 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * This product includes cryptographic software written by Eric Young 54*0Sstevel@tonic-gate * (eay@cryptsoft.com). This product includes software written by Tim 55*0Sstevel@tonic-gate * Hudson (tjh@cryptsoft.com). 56*0Sstevel@tonic-gate * 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #include <stdio.h> 60*0Sstevel@tonic-gate #include "cryptlib.h" 61*0Sstevel@tonic-gate #include <openssl/pkcs12.h> 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate /* Define this to dump decrypted output to files called DERnnn */ 64*0Sstevel@tonic-gate /*#define DEBUG_DECRYPT*/ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* Encrypt/Decrypt a buffer based on password and algor, result in a 68*0Sstevel@tonic-gate * OPENSSL_malloc'ed buffer 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate unsigned char * PKCS12_pbe_crypt(X509_ALGOR *algor, const char *pass, 72*0Sstevel@tonic-gate int passlen, unsigned char *in, int inlen, unsigned char **data, 73*0Sstevel@tonic-gate int *datalen, int en_de) 74*0Sstevel@tonic-gate { 75*0Sstevel@tonic-gate unsigned char *out; 76*0Sstevel@tonic-gate int outlen, i; 77*0Sstevel@tonic-gate EVP_CIPHER_CTX ctx; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate EVP_CIPHER_CTX_init(&ctx); 80*0Sstevel@tonic-gate /* Decrypt data */ 81*0Sstevel@tonic-gate if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen, 82*0Sstevel@tonic-gate algor->parameter, &ctx, en_de)) { 83*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR); 84*0Sstevel@tonic-gate return NULL; 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate if(!(out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(&ctx)))) { 88*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,ERR_R_MALLOC_FAILURE); 89*0Sstevel@tonic-gate goto err; 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate EVP_CipherUpdate(&ctx, out, &i, in, inlen); 93*0Sstevel@tonic-gate outlen = i; 94*0Sstevel@tonic-gate if(!EVP_CipherFinal_ex(&ctx, out + i, &i)) { 95*0Sstevel@tonic-gate OPENSSL_free(out); 96*0Sstevel@tonic-gate out = NULL; 97*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,PKCS12_R_PKCS12_CIPHERFINAL_ERROR); 98*0Sstevel@tonic-gate goto err; 99*0Sstevel@tonic-gate } 100*0Sstevel@tonic-gate outlen += i; 101*0Sstevel@tonic-gate if (datalen) *datalen = outlen; 102*0Sstevel@tonic-gate if (data) *data = out; 103*0Sstevel@tonic-gate err: 104*0Sstevel@tonic-gate EVP_CIPHER_CTX_cleanup(&ctx); 105*0Sstevel@tonic-gate return out; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate } 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate /* Decrypt an OCTET STRING and decode ASN1 structure 110*0Sstevel@tonic-gate * if zbuf set zero buffer after use. 111*0Sstevel@tonic-gate */ 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate void * PKCS12_item_decrypt_d2i(X509_ALGOR *algor, const ASN1_ITEM *it, 114*0Sstevel@tonic-gate const char *pass, int passlen, ASN1_OCTET_STRING *oct, int zbuf) 115*0Sstevel@tonic-gate { 116*0Sstevel@tonic-gate unsigned char *out, *p; 117*0Sstevel@tonic-gate void *ret; 118*0Sstevel@tonic-gate int outlen; 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length, 121*0Sstevel@tonic-gate &out, &outlen, 0)) { 122*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_DECRYPT_D2I,PKCS12_R_PKCS12_PBE_CRYPT_ERROR); 123*0Sstevel@tonic-gate return NULL; 124*0Sstevel@tonic-gate } 125*0Sstevel@tonic-gate p = out; 126*0Sstevel@tonic-gate #ifdef DEBUG_DECRYPT 127*0Sstevel@tonic-gate { 128*0Sstevel@tonic-gate FILE *op; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate char fname[30]; 131*0Sstevel@tonic-gate static int fnm = 1; 132*0Sstevel@tonic-gate sprintf(fname, "DER%d", fnm++); 133*0Sstevel@tonic-gate op = fopen(fname, "wb"); 134*0Sstevel@tonic-gate fwrite (p, 1, outlen, op); 135*0Sstevel@tonic-gate fclose(op); 136*0Sstevel@tonic-gate } 137*0Sstevel@tonic-gate #endif 138*0Sstevel@tonic-gate ret = ASN1_item_d2i(NULL, &p, outlen, it); 139*0Sstevel@tonic-gate if (zbuf) OPENSSL_cleanse(out, outlen); 140*0Sstevel@tonic-gate if(!ret) PKCS12err(PKCS12_F_PKCS12_DECRYPT_D2I,PKCS12_R_DECODE_ERROR); 141*0Sstevel@tonic-gate OPENSSL_free(out); 142*0Sstevel@tonic-gate return ret; 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate /* Encode ASN1 structure and encrypt, return OCTET STRING 146*0Sstevel@tonic-gate * if zbuf set zero encoding. 147*0Sstevel@tonic-gate */ 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor, const ASN1_ITEM *it, 150*0Sstevel@tonic-gate const char *pass, int passlen, 151*0Sstevel@tonic-gate void *obj, int zbuf) 152*0Sstevel@tonic-gate { 153*0Sstevel@tonic-gate ASN1_OCTET_STRING *oct; 154*0Sstevel@tonic-gate unsigned char *in = NULL; 155*0Sstevel@tonic-gate int inlen; 156*0Sstevel@tonic-gate if (!(oct = M_ASN1_OCTET_STRING_new ())) { 157*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_I2D_ENCRYPT,ERR_R_MALLOC_FAILURE); 158*0Sstevel@tonic-gate return NULL; 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate inlen = ASN1_item_i2d(obj, &in, it); 161*0Sstevel@tonic-gate if (!in) { 162*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_I2D_ENCRYPT,PKCS12_R_ENCODE_ERROR); 163*0Sstevel@tonic-gate return NULL; 164*0Sstevel@tonic-gate } 165*0Sstevel@tonic-gate if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data, 166*0Sstevel@tonic-gate &oct->length, 1)) { 167*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_I2D_ENCRYPT,PKCS12_R_ENCRYPT_ERROR); 168*0Sstevel@tonic-gate OPENSSL_free(in); 169*0Sstevel@tonic-gate return NULL; 170*0Sstevel@tonic-gate } 171*0Sstevel@tonic-gate if (zbuf) OPENSSL_cleanse(in, inlen); 172*0Sstevel@tonic-gate OPENSSL_free(in); 173*0Sstevel@tonic-gate return oct; 174*0Sstevel@tonic-gate } 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate IMPLEMENT_PKCS12_STACK_OF(PKCS7) 177