1 /* crypto/md5/md5_locl.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include <openssl/e_os2.h>
62 #include <openssl/md5.h>
65 #define MD5_LONG_LOG2 2 /* default to 32 bits */
69 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || defined(__INTEL__) || defined(__x86_64) || defined(__x86_64__)
70 # if !defined(B_ENDIAN)
71 # define md5_block_host_order md5_block_asm_host_order
73 # elif defined(__sparc) && defined(OPENSSL_SYS_ULTRASPARC)
74 void md5_block_asm_data_order_aligned (MD5_CTX *c, const MD5_LONG *p,size_t num);
75 # define HASH_BLOCK_DATA_ORDER_ALIGNED md5_block_asm_data_order_aligned
76 # elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
77 # define md5_block_host_order md5_block_asm_host_order
78 # define md5_block_data_order md5_block_asm_data_order
82 void md5_block_host_order (MD5_CTX *c, const void *p,size_t num);
83 void md5_block_data_order (MD5_CTX *c, const void *p,size_t num);
85 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || defined(__INTEL__) || defined(__x86_64) || defined(__x86_64__)
86 # if !defined(B_ENDIAN)
88 * *_block_host_order is expected to handle aligned data while
89 * *_block_data_order - unaligned. As algorithm and host (x86)
90 * are in this case of the same "endianness" these two are
91 * otherwise indistinguishable. But normally you don't want to
92 * call the same function because unaligned access in places
93 * where alignment is expected is usually a "Bad Thing". Indeed,
94 * on RISCs you get punished with BUS ERROR signal or *severe*
95 * performance degradation. Intel CPUs are in turn perfectly
96 * capable of loading unaligned data without such drastic side
97 * effect. Yes, they say it's slower than aligned load, but no
98 * exception is generated and therefore performance degradation
99 * is *incomparable* with RISCs. What we should weight here is
100 * costs of unaligned access against costs of aligning data.
101 * According to my measurements allowing unaligned access results
102 * in ~9% performance improvement on Pentium II operating at
103 * 266MHz. I won't be surprised if the difference will be higher
104 * on faster systems:-)
106 * <appro@fy.chalmers.se>
108 # define md5_block_data_order md5_block_host_order
112 #define DATA_ORDER_IS_LITTLE_ENDIAN
114 #define HASH_LONG MD5_LONG
115 #define HASH_LONG_LOG2 MD5_LONG_LOG2
116 #define HASH_CTX MD5_CTX
117 #define HASH_CBLOCK MD5_CBLOCK
118 #define HASH_LBLOCK MD5_LBLOCK
119 #define HASH_UPDATE MD5_Update
120 #define HASH_TRANSFORM MD5_Transform
121 #define HASH_FINAL MD5_Final
122 #define HASH_MAKE_STRING(c,s) do { \
124 ll=(c)->A; HOST_l2c(ll,(s)); \
125 ll=(c)->B; HOST_l2c(ll,(s)); \
126 ll=(c)->C; HOST_l2c(ll,(s)); \
127 ll=(c)->D; HOST_l2c(ll,(s)); \
129 #define HASH_BLOCK_HOST_ORDER md5_block_host_order
130 #if !defined(L_ENDIAN) || defined(md5_block_data_order)
131 #define HASH_BLOCK_DATA_ORDER md5_block_data_order
133 * Little-endians (Intel and Alpha) feel better without this.
134 * It looks like memcpy does better job than generic
135 * md5_block_data_order on copying-n-aligning input data.
136 * But frankly speaking I didn't expect such result on Alpha.
137 * On the other hand I've got this with egcs-1.0.2 and if
138 * program is compiled with another (better?) compiler it
139 * might turn out other way around.
141 * <appro@fy.chalmers.se>
145 #include "md32_common.h"
148 #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
149 #define G(x,y,z) (((x) & (z)) | ((y) & (~(z))))
152 /* As pointed out by Wei Dai <weidai@eskimo.com>, the above can be
153 * simplified to the code below. Wei attributes these optimizations
154 * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
156 #define F(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
157 #define G(b,c,d) ((((b) ^ (c)) & (d)) ^ (c))
158 #define H(b,c,d) ((b) ^ (c) ^ (d))
159 #define I(b,c,d) (((~(d)) | (b)) ^ (c))
161 #define R0(a,b,c,d,k,s,t) { \
162 a+=((k)+(t)+F((b),(c),(d))); \
166 #define R1(a,b,c,d,k,s,t) { \
167 a+=((k)+(t)+G((b),(c),(d))); \
171 #define R2(a,b,c,d,k,s,t) { \
172 a+=((k)+(t)+H((b),(c),(d))); \
176 #define R3(a,b,c,d,k,s,t) { \
177 a+=((k)+(t)+I((b),(c),(d))); \