-/* p5_crpt2.c */
/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999-2006 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 OpenSSL license (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 "internal/cryptlib.h"
# include "evp_locl.h"
/* set this to print out info about the keygen algorithm */
-/* #define DEBUG_PKCS5V2 */
+/* #define OPENSSL_DEBUG_PKCS5V2 */
-# ifdef DEBUG_PKCS5V2
+# ifdef OPENSSL_DEBUG_PKCS5V2
static void h__dump(const unsigned char *p, int len);
# endif
const unsigned char *salt, int saltlen, int iter,
const EVP_MD *digest, int keylen, unsigned char *out)
{
+ const char *empty = "";
unsigned char digtmp[EVP_MAX_MD_SIZE], *p, itmp[4];
int cplen, j, k, tkeylen, mdlen;
unsigned long i = 1;
return 0;
p = out;
tkeylen = keylen;
- if (!pass)
+ if (pass == NULL) {
+ pass = empty;
passlen = 0;
- else if (passlen == -1)
+ } else if (passlen == -1) {
passlen = strlen(pass);
+ }
if (!HMAC_Init_ex(hctx_tpl, pass, passlen, digest, NULL)) {
HMAC_CTX_free(hctx_tpl);
return 0;
HMAC_CTX_free(hctx_tpl);
return 0;
}
- HMAC_CTX_reset(hctx);
memcpy(p, digtmp, cplen);
for (j = 1; j < iter; j++) {
if (!HMAC_CTX_copy(hctx, hctx_tpl)) {
HMAC_CTX_free(hctx_tpl);
return 0;
}
- HMAC_CTX_reset(hctx);
for (k = 0; k < cplen; k++)
p[k] ^= digtmp[k];
}
}
HMAC_CTX_free(hctx);
HMAC_CTX_free(hctx_tpl);
-# ifdef DEBUG_PKCS5V2
+# ifdef OPENSSL_DEBUG_PKCS5V2
fprintf(stderr, "Password:\n");
h__dump(pass, passlen);
fprintf(stderr, "Salt:\n");
keylen, out);
}
-# ifdef DO_TEST
-main()
-{
- unsigned char out[4];
- unsigned char salt[] = { 0x12, 0x34, 0x56, 0x78 };
- PKCS5_PBKDF2_HMAC_SHA1("password", -1, salt, 4, 5, 4, out);
- fprintf(stderr, "Out %02X %02X %02X %02X\n",
- out[0], out[1], out[2], out[3]);
-}
-
-# endif
-
/*
* Now the key derivation function itself. This is a bit evil because it has
* to check the ASN1 parameters are valid: and there are quite a few of
/* See if we recognise the key derivation function */
if (!EVP_PBE_find(EVP_PBE_TYPE_KDF, OBJ_obj2nid(pbe2->keyfunc->algorithm),
- NULL, NULL, &kdf)) {
+ NULL, NULL, &kdf)) {
EVPerr(EVP_F_PKCS5_V2_PBE_KEYIVGEN,
EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION);
goto err;
return rv;
}
-# ifdef DEBUG_PKCS5V2
+# ifdef OPENSSL_DEBUG_PKCS5V2
static void h__dump(const unsigned char *p, int len)
{
for (; len--; p++)
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