1/* crypto/ripemd/rmd_locl.h */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
59#include "ripemd.h"
60
61#undef c2nl
62#define c2nl(c,l)	(l =(((u_int32_t)(*((c)++)))<<24), \
63			 l|=(((u_int32_t)(*((c)++)))<<16), \
64			 l|=(((u_int32_t)(*((c)++)))<< 8), \
65			 l|=(((u_int32_t)(*((c)++)))    ))
66
67#undef p_c2nl
68#define p_c2nl(c,l,n)	{ \
69			switch (n) { \
70			case 0: l =((u_int32_t)(*((c)++)))<<24; \
71			case 1: l|=((u_int32_t)(*((c)++)))<<16; \
72			case 2: l|=((u_int32_t)(*((c)++)))<< 8; \
73			case 3: l|=((u_int32_t)(*((c)++))); \
74				} \
75			}
76
77#undef c2nl_p
78/* NOTE the pointer is not incremented at the end of this */
79#define c2nl_p(c,l,n)	{ \
80			l=0; \
81			(c)+=n; \
82			switch (n) { \
83			case 3: l =((u_int32_t)(*(--(c))))<< 8; \
84			case 2: l|=((u_int32_t)(*(--(c))))<<16; \
85			case 1: l|=((u_int32_t)(*(--(c))))<<24; \
86				} \
87			}
88
89#undef p_c2nl_p
90#define p_c2nl_p(c,l,sc,len) { \
91			switch (sc) \
92				{ \
93			case 0: l =((u_int32_t)(*((c)++)))<<24; \
94				if (--len == 0) break; \
95			case 1: l|=((u_int32_t)(*((c)++)))<<16; \
96				if (--len == 0) break; \
97			case 2: l|=((u_int32_t)(*((c)++)))<< 8; \
98				} \
99			}
100
101#undef nl2c
102#define nl2c(l,c)	(*((c)++)=(unsigned char)(((l)>>24)&0xff), \
103			 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
104			 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
105			 *((c)++)=(unsigned char)(((l)    )&0xff))
106
107#undef c2l
108#define c2l(c,l)	(l =(((u_int32_t)(*((c)++)))    ), \
109			 l|=(((u_int32_t)(*((c)++)))<< 8), \
110			 l|=(((u_int32_t)(*((c)++)))<<16), \
111			 l|=(((u_int32_t)(*((c)++)))<<24))
112
113#undef p_c2l
114#define p_c2l(c,l,n)	{ \
115			switch (n) { \
116			case 0: l =((u_int32_t)(*((c)++))); \
117			case 1: l|=((u_int32_t)(*((c)++)))<< 8; \
118			case 2: l|=((u_int32_t)(*((c)++)))<<16; \
119			case 3: l|=((u_int32_t)(*((c)++)))<<24; \
120				} \
121			}
122
123#undef c2l_p
124/* NOTE the pointer is not incremented at the end of this */
125#define c2l_p(c,l,n)	{ \
126			l=0; \
127			(c)+=n; \
128			switch (n) { \
129			case 3: l =((u_int32_t)(*(--(c))))<<16; \
130			case 2: l|=((u_int32_t)(*(--(c))))<< 8; \
131			case 1: l|=((u_int32_t)(*(--(c)))); \
132				} \
133			}
134
135#undef p_c2l_p
136#define p_c2l_p(c,l,sc,len) { \
137			switch (sc) \
138				{ \
139			case 0: l =((u_int32_t)(*((c)++))); \
140				if (--len == 0) break; \
141			case 1: l|=((u_int32_t)(*((c)++)))<< 8; \
142				if (--len == 0) break; \
143			case 2: l|=((u_int32_t)(*((c)++)))<<16; \
144				} \
145			}
146
147#undef l2c
148#define l2c(l,c)	(*((c)++)=(unsigned char)(((l)    )&0xff), \
149			 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
150			 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
151			 *((c)++)=(unsigned char)(((l)>>24)&0xff))
152
153#undef ROTATE
154#if defined(WIN32)
155#define ROTATE(a,n)     _lrotl(a,n)
156#else
157#define ROTATE(a,n)     (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
158#endif
159
160/* A nice byte order reversal from Wei Dai <weidai@eskimo.com> */
161#if defined(WIN32)
162/* 5 instructions with rotate instruction, else 9 */
163#define Endian_Reverse32(a) \
164	{ \
165	u_int32_t l=(a); \
166	(a)=((ROTATE(l,8)&0x00FF00FF)|(ROTATE(l,24)&0xFF00FF00)); \
167	}
168#else
169/* 6 instructions with rotate instruction, else 8 */
170#define Endian_Reverse32(a) \
171	{ \
172	u_int32_t l=(a); \
173	l=(((l&0xFF00FF00)>>8L)|((l&0x00FF00FF)<<8L)); \
174	(a)=ROTATE(l,16L); \
175	}
176#endif
177
178#define F1(x,y,z)	 ((x)^(y)^(z))
179#define F2(x,y,z)	(((x)&(y))|((~x)&z))
180#define F3(x,y,z)	(((x)|(~y))^(z))
181#define F4(x,y,z)	(((x)&(z))|((y)&(~(z))))
182#define F5(x,y,z)	 ((x)^((y)|(~(z))))
183
184#define RIPEMD160_A	0x67452301L
185#define RIPEMD160_B	0xEFCDAB89L
186#define RIPEMD160_C	0x98BADCFEL
187#define RIPEMD160_D	0x10325476L
188#define RIPEMD160_E	0xC3D2E1F0L
189
190#include "rmdconst.h"
191
192#define RIP1(a,b,c,d,e,w,s) { \
193	a+=F1(b,c,d)+X[w]; \
194        a=ROTATE(a,s)+e; \
195        c=ROTATE(c,10); }
196
197#define RIP2(a,b,c,d,e,w,s,K) { \
198	a+=F2(b,c,d)+X[w]+K; \
199        a=ROTATE(a,s)+e; \
200        c=ROTATE(c,10); }
201
202#define RIP3(a,b,c,d,e,w,s,K) { \
203	a+=F3(b,c,d)+X[w]+K; \
204        a=ROTATE(a,s)+e; \
205        c=ROTATE(c,10); }
206
207#define RIP4(a,b,c,d,e,w,s,K) { \
208	a+=F4(b,c,d)+X[w]+K; \
209        a=ROTATE(a,s)+e; \
210        c=ROTATE(c,10); }
211
212#define RIP5(a,b,c,d,e,w,s,K) { \
213	a+=F5(b,c,d)+X[w]+K; \
214        a=ROTATE(a,s)+e; \
215        c=ROTATE(c,10); }
216
217