--- /dev/null
+/* crypto/md4/md4_locl.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <openssl/opensslconf.h>
+#include <openssl/md4.h>
+
+#ifndef MD4_LONG_LOG2
+#define MD4_LONG_LOG2 2 /* default to 32 bits */
+#endif
+
+void md4_block_host_order (MD4_CTX *c, const void *p,int num);
+void md4_block_data_order (MD4_CTX *c, const void *p,int num);
+
+#if defined(__i386) || defined(_M_IX86) || defined(__INTEL__)
+/*
+ * *_block_host_order is expected to handle aligned data while
+ * *_block_data_order - unaligned. As algorithm and host (x86)
+ * are in this case of the same "endianness" these two are
+ * otherwise indistinguishable. But normally you don't want to
+ * call the same function because unaligned access in places
+ * where alignment is expected is usually a "Bad Thing". Indeed,
+ * on RISCs you get punished with BUS ERROR signal or *severe*
+ * performance degradation. Intel CPUs are in turn perfectly
+ * capable of loading unaligned data without such drastic side
+ * effect. Yes, they say it's slower than aligned load, but no
+ * exception is generated and therefore performance degradation
+ * is *incomparable* with RISCs. What we should weight here is
+ * costs of unaligned access against costs of aligning data.
+ * According to my measurements allowing unaligned access results
+ * in ~9% performance improvement on Pentium II operating at
+ * 266MHz. I won't be surprised if the difference will be higher
+ * on faster systems:-)
+ *
+ * <appro@fy.chalmers.se>
+ */
+#define md4_block_data_order md4_block_host_order
+#endif
+
+#define DATA_ORDER_IS_LITTLE_ENDIAN
+
+#define HASH_LONG MD4_LONG
+#define HASH_LONG_LOG2 MD4_LONG_LOG2
+#define HASH_CTX MD4_CTX
+#define HASH_CBLOCK MD4_CBLOCK
+#define HASH_LBLOCK MD4_LBLOCK
+#define HASH_UPDATE MD4_Update
+#define HASH_TRANSFORM MD4_Transform
+#define HASH_FINAL MD4_Final
+#define HASH_MAKE_STRING(c,s) do { \
+ unsigned long ll; \
+ ll=(c)->A; HOST_l2c(ll,(s)); \
+ ll=(c)->B; HOST_l2c(ll,(s)); \
+ ll=(c)->C; HOST_l2c(ll,(s)); \
+ ll=(c)->D; HOST_l2c(ll,(s)); \
+ } while (0)
+#define HASH_BLOCK_HOST_ORDER md4_block_host_order
+#if !defined(L_ENDIAN) || defined(md4_block_data_order)
+#define HASH_BLOCK_DATA_ORDER md4_block_data_order
+/*
+ * Little-endians (Intel and Alpha) feel better without this.
+ * It looks like memcpy does better job than generic
+ * md4_block_data_order on copying-n-aligning input data.
+ * But frankly speaking I didn't expect such result on Alpha.
+ * On the other hand I've got this with egcs-1.0.2 and if
+ * program is compiled with another (better?) compiler it
+ * might turn out other way around.
+ *
+ * <appro@fy.chalmers.se>
+ */
+#endif
+
+#include "md32_common.h"
+
+/*
+#define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
+#define G(x,y,z) (((x) & (y)) | ((x) & ((z))) | ((y) & ((z))))
+*/
+
+/* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
+ * simplified to the code below. Wei attributes these optimizations
+ * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
+ */
+#define F(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
+#define G(b,c,d) (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
+#define H(b,c,d) ((b) ^ (c) ^ (d))
+
+#define R0(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+F((b),(c),(d))); \
+ a=ROTATE(a,s); };
+
+#define R1(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+G((b),(c),(d))); \
+ a=ROTATE(a,s); };\
+
+#define R2(a,b,c,d,k,s,t) { \
+ a+=((k)+(t)+H((b),(c),(d))); \
+ a=ROTATE(a,s); };
projects / openssl.git / blobdiff