--- /dev/null
+/* crypto/sha/sha_sgst.c */
+/* 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>
+
+#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);
+
projects / openssl.git / blobdiff