244 lines
8.2 KiB
C
244 lines
8.2 KiB
C
/* crypto/sha/sha_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.]
|
|
*/
|
|
|
|
#ifdef undef
|
|
/* one or the other needs to be defined */
|
|
#ifndef SHA_1 /* FIPE 180-1 */
|
|
#define SHA_0 /* FIPS 180 */
|
|
#endif
|
|
#endif
|
|
|
|
#define ULONG unsigned long
|
|
#define UCHAR unsigned char
|
|
#define UINT unsigned int
|
|
|
|
#ifdef NOCONST
|
|
#define const
|
|
#endif
|
|
|
|
#undef c2nl
|
|
#define c2nl(c,l) (l =(((unsigned long)(*((c)++)))<<24), \
|
|
l|=(((unsigned long)(*((c)++)))<<16), \
|
|
l|=(((unsigned long)(*((c)++)))<< 8), \
|
|
l|=(((unsigned long)(*((c)++))) ))
|
|
|
|
#undef p_c2nl
|
|
#define p_c2nl(c,l,n) { \
|
|
switch (n) { \
|
|
case 0: l =((unsigned long)(*((c)++)))<<24; \
|
|
case 1: l|=((unsigned long)(*((c)++)))<<16; \
|
|
case 2: l|=((unsigned long)(*((c)++)))<< 8; \
|
|
case 3: l|=((unsigned long)(*((c)++))); \
|
|
} \
|
|
}
|
|
|
|
#undef c2nl_p
|
|
/* NOTE the pointer is not incremented at the end of this */
|
|
#define c2nl_p(c,l,n) { \
|
|
l=0; \
|
|
(c)+=n; \
|
|
switch (n) { \
|
|
case 3: l =((unsigned long)(*(--(c))))<< 8; \
|
|
case 2: l|=((unsigned long)(*(--(c))))<<16; \
|
|
case 1: l|=((unsigned long)(*(--(c))))<<24; \
|
|
} \
|
|
}
|
|
|
|
#undef p_c2nl_p
|
|
#define p_c2nl_p(c,l,sc,len) { \
|
|
switch (sc) \
|
|
{ \
|
|
case 0: l =((unsigned long)(*((c)++)))<<24; \
|
|
if (--len == 0) break; \
|
|
case 1: l|=((unsigned long)(*((c)++)))<<16; \
|
|
if (--len == 0) break; \
|
|
case 2: l|=((unsigned long)(*((c)++)))<< 8; \
|
|
} \
|
|
}
|
|
|
|
#undef nl2c
|
|
#define nl2c(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
|
|
*((c)++)=(unsigned char)(((l)>>16)&0xff), \
|
|
*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
|
|
*((c)++)=(unsigned char)(((l) )&0xff))
|
|
|
|
#undef c2l
|
|
#define c2l(c,l) (l =(((unsigned long)(*((c)++))) ), \
|
|
l|=(((unsigned long)(*((c)++)))<< 8), \
|
|
l|=(((unsigned long)(*((c)++)))<<16), \
|
|
l|=(((unsigned long)(*((c)++)))<<24))
|
|
|
|
#undef p_c2l
|
|
#define p_c2l(c,l,n) { \
|
|
switch (n) { \
|
|
case 0: l =((unsigned long)(*((c)++))); \
|
|
case 1: l|=((unsigned long)(*((c)++)))<< 8; \
|
|
case 2: l|=((unsigned long)(*((c)++)))<<16; \
|
|
case 3: l|=((unsigned long)(*((c)++)))<<24; \
|
|
} \
|
|
}
|
|
|
|
#undef c2l_p
|
|
/* NOTE the pointer is not incremented at the end of this */
|
|
#define c2l_p(c,l,n) { \
|
|
l=0; \
|
|
(c)+=n; \
|
|
switch (n) { \
|
|
case 3: l =((unsigned long)(*(--(c))))<<16; \
|
|
case 2: l|=((unsigned long)(*(--(c))))<< 8; \
|
|
case 1: l|=((unsigned long)(*(--(c)))); \
|
|
} \
|
|
}
|
|
|
|
#undef p_c2l_p
|
|
#define p_c2l_p(c,l,sc,len) { \
|
|
switch (sc) \
|
|
{ \
|
|
case 0: l =((unsigned long)(*((c)++))); \
|
|
if (--len == 0) break; \
|
|
case 1: l|=((unsigned long)(*((c)++)))<< 8; \
|
|
if (--len == 0) break; \
|
|
case 2: l|=((unsigned long)(*((c)++)))<<16; \
|
|
} \
|
|
}
|
|
|
|
#undef l2c
|
|
#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
|
|
*((c)++)=(unsigned char)(((l)>> 8)&0xff), \
|
|
*((c)++)=(unsigned char)(((l)>>16)&0xff), \
|
|
*((c)++)=(unsigned char)(((l)>>24)&0xff))
|
|
|
|
#undef ROTATE
|
|
#if defined(WIN32)
|
|
#define ROTATE(a,n) _lrotl(a,n)
|
|
#else
|
|
#define ROTATE(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
|
|
#endif
|
|
|
|
/* A nice byte order reversal from Wei Dai <weidai@eskimo.com> */
|
|
#if defined(WIN32)
|
|
/* 5 instructions with rotate instruction, else 9 */
|
|
#define Endian_Reverse32(a) \
|
|
{ \
|
|
unsigned long l=(a); \
|
|
(a)=((ROTATE(l,8)&0x00FF00FF)|(ROTATE(l,24)&0xFF00FF00)); \
|
|
}
|
|
#else
|
|
/* 6 instructions with rotate instruction, else 8 */
|
|
#define Endian_Reverse32(a) \
|
|
{ \
|
|
unsigned long l=(a); \
|
|
l=(((l&0xFF00FF00)>>8L)|((l&0x00FF00FF)<<8L)); \
|
|
(a)=ROTATE(l,16L); \
|
|
}
|
|
#endif
|
|
|
|
/* As pointed out by Wei Dai <weidai@eskimo.com>, F() below can be
|
|
* simplified to the code in F_00_19. Wei attributes these optimisations
|
|
* to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
|
|
* #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
|
|
* I've just become aware of another tweak to be made, again from Wei Dai,
|
|
* in F_40_59, (x&a)|(y&a) -> (x|y)&a
|
|
*/
|
|
#define F_00_19(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
|
|
#define F_20_39(b,c,d) ((b) ^ (c) ^ (d))
|
|
#define F_40_59(b,c,d) (((b) & (c)) | (((b)|(c)) & (d)))
|
|
#define F_60_79(b,c,d) F_20_39(b,c,d)
|
|
|
|
#ifdef SHA_0
|
|
#undef Xupdate
|
|
#define Xupdate(a,i,ia,ib,ic,id) X[(i)&0x0f]=(a)=\
|
|
(ia[(i)&0x0f]^ib[((i)+2)&0x0f]^ic[((i)+8)&0x0f]^id[((i)+13)&0x0f]);
|
|
#endif
|
|
#ifdef SHA_1
|
|
#undef Xupdate
|
|
#define Xupdate(a,i,ia,ib,ic,id) (a)=\
|
|
(ia[(i)&0x0f]^ib[((i)+2)&0x0f]^ic[((i)+8)&0x0f]^id[((i)+13)&0x0f]);\
|
|
X[(i)&0x0f]=(a)=ROTATE((a),1);
|
|
#endif
|
|
|
|
#define BODY_00_15(i,a,b,c,d,e,f,xa) \
|
|
(f)=xa[i]+(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|
|
#define BODY_16_19(i,a,b,c,d,e,f,xa,xb,xc,xd) \
|
|
Xupdate(f,i,xa,xb,xc,xd); \
|
|
(f)+=(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|
|
#define BODY_20_31(i,a,b,c,d,e,f,xa,xb,xc,xd) \
|
|
Xupdate(f,i,xa,xb,xc,xd); \
|
|
(f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|
|
#define BODY_32_39(i,a,b,c,d,e,f,xa) \
|
|
Xupdate(f,i,xa,xa,xa,xa); \
|
|
(f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|
|
#define BODY_40_59(i,a,b,c,d,e,f,xa) \
|
|
Xupdate(f,i,xa,xa,xa,xa); \
|
|
(f)+=(e)+K_40_59+ROTATE((a),5)+F_40_59((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|
|
#define BODY_60_79(i,a,b,c,d,e,f,xa) \
|
|
Xupdate(f,i,xa,xa,xa,xa); \
|
|
(f)=X[(i)&0x0f]+(e)+K_60_79+ROTATE((a),5)+F_60_79((b),(c),(d)); \
|
|
(b)=ROTATE((b),30);
|
|
|