-/* p5_crpt.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/evp.h>
-/* Doesn't do anything now: Builtin PBE algorithms in static table.
+/*
+ * Doesn't do anything now: Builtin PBE algorithms in static table.
*/
void PKCS5_PBE_add(void)
}
int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
- ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
- int en_de)
+ ASN1_TYPE *param, const EVP_CIPHER *cipher,
+ const EVP_MD *md, int en_de)
{
- EVP_MD_CTX ctx;
- unsigned char md_tmp[EVP_MAX_MD_SIZE];
- unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
- int i;
- PBEPARAM *pbe;
- int saltlen, iter;
- unsigned char *salt;
- const unsigned char *pbuf;
+ EVP_MD_CTX *ctx;
+ unsigned char md_tmp[EVP_MAX_MD_SIZE];
+ unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
+ int i;
+ PBEPARAM *pbe;
+ int saltlen, iter;
+ unsigned char *salt;
+ int mdsize;
+ int rv = 0;
+
+ /* Extract useful info from parameter */
+ if (param == NULL || param->type != V_ASN1_SEQUENCE ||
+ param->value.sequence == NULL) {
+ EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_DECODE_ERROR);
+ return 0;
+ }
- /* Extract useful info from parameter */
- if (param == NULL || param->type != V_ASN1_SEQUENCE ||
- param->value.sequence == NULL) {
- EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
- return 0;
- }
+ pbe = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(PBEPARAM), param);
+ if (pbe == NULL) {
+ EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_DECODE_ERROR);
+ return 0;
+ }
- pbuf = param->value.sequence->data;
- if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
- EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
- return 0;
- }
+ if (!pbe->iter)
+ iter = 1;
+ else
+ iter = ASN1_INTEGER_get(pbe->iter);
+ salt = pbe->salt->data;
+ saltlen = pbe->salt->length;
- if (!pbe->iter) iter = 1;
- else iter = ASN1_INTEGER_get (pbe->iter);
- salt = pbe->salt->data;
- saltlen = pbe->salt->length;
+ if (!pass)
+ passlen = 0;
+ else if (passlen == -1)
+ passlen = strlen(pass);
- if(!pass) passlen = 0;
- else if(passlen == -1) passlen = strlen(pass);
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL) {
+ EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
- EVP_MD_CTX_init(&ctx);
- EVP_DigestInit_ex(&ctx, md, NULL);
- EVP_DigestUpdate(&ctx, pass, passlen);
- EVP_DigestUpdate(&ctx, salt, saltlen);
- PBEPARAM_free(pbe);
- EVP_DigestFinal_ex(&ctx, md_tmp, NULL);
- for (i = 1; i < iter; i++) {
- EVP_DigestInit_ex(&ctx, md, NULL);
- EVP_DigestUpdate(&ctx, md_tmp, EVP_MD_size(md));
- EVP_DigestFinal_ex (&ctx, md_tmp, NULL);
- }
- EVP_MD_CTX_cleanup(&ctx);
- OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
- memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
- OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
- memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
- EVP_CIPHER_iv_length(cipher));
- EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de);
- OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
- OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
- OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
- return 1;
+ if (!EVP_DigestInit_ex(ctx, md, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(ctx, pass, passlen))
+ goto err;
+ if (!EVP_DigestUpdate(ctx, salt, saltlen))
+ goto err;
+ PBEPARAM_free(pbe);
+ if (!EVP_DigestFinal_ex(ctx, md_tmp, NULL))
+ goto err;
+ mdsize = EVP_MD_size(md);
+ if (mdsize < 0)
+ return 0;
+ for (i = 1; i < iter; i++) {
+ if (!EVP_DigestInit_ex(ctx, md, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(ctx, md_tmp, mdsize))
+ goto err;
+ if (!EVP_DigestFinal_ex(ctx, md_tmp, NULL))
+ goto err;
+ }
+ OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
+ memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
+ OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
+ memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
+ EVP_CIPHER_iv_length(cipher));
+ if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de))
+ goto err;
+ OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
+ OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
+ OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
+ rv = 1;
+ err:
+ EVP_MD_CTX_free(ctx);
+ return rv;
}
projects / openssl.git / blobdiff