-/* crypto/md32_common.h */
-/* ====================================================================
- * Copyright (c) 1999-2007 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.
- * ====================================================================
+/*
+ * 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
*/
/*-
* HASH_CBLOCK
* size of a unit chunk HASH_BLOCK operates on.
* HASH_LONG
- * has to be at lest 32 bit wide.
+ * has to be at least 32 bit wide.
* HASH_CTX
* context structure that at least contains following
* members:
* name of "block" function capable of treating *unaligned* input
* message in original (data) byte order, implemented externally.
* HASH_MAKE_STRING
- * macro convering context variables to an ASCII hash string.
+ * macro converting context variables to an ASCII hash string.
*
* MD5 example:
*
* #define HASH_TRANSFORM MD5_Transform
* #define HASH_FINAL MD5_Final
* #define HASH_BLOCK_DATA_ORDER md5_block_data_order
- *
- * <appro@fy.chalmers.se>
*/
+#include <openssl/crypto.h>
+
#if !defined(DATA_ORDER_IS_BIG_ENDIAN) && !defined(DATA_ORDER_IS_LITTLE_ENDIAN)
# error "DATA_ORDER must be defined!"
#endif
* Some GNU C inline assembler templates. Note that these are
* rotates by *constant* number of bits! But that's exactly
* what we need here...
- * <appro@fy.chalmers.se>
*/
# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
# define ROTATE(a,n) ({ register unsigned int ret; \
#endif
/*
- * Time for some action:-)
+ * Time for some action :-)
*/
int HASH_UPDATE(HASH_CTX *c, const void *data_, size_t len)
return 1;
l = (c->Nl + (((HASH_LONG) len) << 3)) & 0xffffffffUL;
- /*
- * 95-05-24 eay Fixed a bug with the overflow handling, thanks to Wei Dai
- * <weidai@eskimo.com> for pointing it out.
- */
if (l < c->Nl) /* overflow */
c->Nh++;
c->Nh += (HASH_LONG) (len >> 29); /* might cause compiler warning on
data += n;
len -= n;
c->num = 0;
+ /*
+ * We use memset rather than OPENSSL_cleanse() here deliberately.
+ * Using OPENSSL_cleanse() here could be a performance issue. It
+ * will get properly cleansed on finalisation so this isn't a
+ * security problem.
+ */
memset(p, 0, HASH_CBLOCK); /* keep it zeroed */
} else {
memcpy(p + n, data, len);
p -= HASH_CBLOCK;
HASH_BLOCK_DATA_ORDER(c, p, 1);
c->num = 0;
- memset(p, 0, HASH_CBLOCK);
+ OPENSSL_cleanse(p, HASH_CBLOCK);
#ifndef HASH_MAKE_STRING
# error "HASH_MAKE_STRING must be defined!"
# if defined(__alpha) || defined(__sparcv9) || defined(__mips)
# define MD32_REG_T long
/*
- * This comment was originaly written for MD5, which is why it
+ * This comment was originally written for MD5, which is why it
* discusses A-D. But it basically applies to all 32-bit digests,
* which is why it was moved to common header file.
*
* improvement under SPARC Solaris7/64 and 5% under AlphaLinux.
* Well, to be honest it should say that this *prevents*
* performance degradation.
- * <appro@fy.chalmers.se>
*/
# else
/*
* generate better code if MD32_REG_T is defined int. The above
* pre-processor condition reflects the circumstances under which
* the conclusion was made and is subject to further extension.
- * <appro@fy.chalmers.se>
*/
# define MD32_REG_T int
# endif
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