crypto/md4/md4_locl.h - third_party/openssl - Git at Google

 /* 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,size_t num);
 void md4_block_data_order (MD4_CTX *c, const void *p,size_t num);

 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || defined(__INTEL__)
 # if !defined(B_ENDIAN)
 /*
  * *_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
 #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); };
	/* 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,size_t num);
	void md4_block_data_order (MD4_CTX c, const void p,size_t num);

	#if defined(__i386) \|\| defined(__i386__) \|\| defined(_M_IX86) \|\| defined(__INTEL__)
	# if !defined(B_ENDIAN)
	/*
	* *_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
	#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); };