18642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* $NetBSD: sha1.c,v 1.1 2005/12/20 20:29:40 christos Exp $ */ 28642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* $OpenBSD: sha1.c,v 1.9 1997/07/23 21:12:32 kstailey Exp $ */ 38642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 48642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 58642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * SHA-1 in C 68642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * By Steve Reid <steve@edmweb.com> 78642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * 100% Public Domain 88642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * 98642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * Test Vectors (from FIPS PUB 180-1) 108642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * "abc" 118642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D 128642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" 138642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 148642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * A million repetitions of "a" 158642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F 168642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 178642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 188642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define SHA1HANDSOFF /* Copies data before messing with it. */ 198642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 208642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include <sys/cdefs.h> 218642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include <sys/types.h> 228642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include <assert.h> 238642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include <string.h> 248642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 258642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include "sha1.h" 268642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 278642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#if HAVE_NBTOOL_CONFIG_H 288642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#include "nbtool_config.h" 298642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 308642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 318642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#if !HAVE_SHA1_H 328642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 338642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) 348642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 358642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 368642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * blk0() and blk() perform the initial expand. 378642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * I got the idea of expanding during the round function from SSLeay 388642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 398642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#if BYTE_ORDER == LITTLE_ENDIAN 408642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland# define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ 418642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland |(rol(block->l[i],8)&0x00FF00FF)) 428642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#else 438642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland# define blk0(i) block->l[i] 448642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 458642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ 468642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland ^block->l[(i+2)&15]^block->l[i&15],1)) 478642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 488642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 498642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1 508642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 518642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); 528642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); 538642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); 548642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); 558642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); 568642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 578642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandtypedef union { 588642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_char c[64]; 598642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int l[16]; 608642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} CHAR64LONG16; 618642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 628642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* old sparc64 gcc could not compile this */ 638642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#undef SPARC64_GCC_WORKAROUND 648642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#if defined(__sparc64__) && defined(__GNUC__) && __GNUC__ < 3 658642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define SPARC64_GCC_WORKAROUND 668642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 678642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 688642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#ifdef SPARC64_GCC_WORKAROUND 698642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid do_R01(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *); 708642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid do_R2(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *); 718642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid do_R3(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *); 728642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid do_R4(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *); 738642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 748642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define nR0(v,w,x,y,z,i) R0(*v,*w,*x,*y,*z,i) 758642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define nR1(v,w,x,y,z,i) R1(*v,*w,*x,*y,*z,i) 768642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define nR2(v,w,x,y,z,i) R2(*v,*w,*x,*y,*z,i) 778642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define nR3(v,w,x,y,z,i) R3(*v,*w,*x,*y,*z,i) 788642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#define nR4(v,w,x,y,z,i) R4(*v,*w,*x,*y,*z,i) 798642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 808642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid 818642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlanddo_R01(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *block) 828642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 838642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR0(a,b,c,d,e, 0); nR0(e,a,b,c,d, 1); nR0(d,e,a,b,c, 2); nR0(c,d,e,a,b, 3); 848642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR0(b,c,d,e,a, 4); nR0(a,b,c,d,e, 5); nR0(e,a,b,c,d, 6); nR0(d,e,a,b,c, 7); 858642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR0(c,d,e,a,b, 8); nR0(b,c,d,e,a, 9); nR0(a,b,c,d,e,10); nR0(e,a,b,c,d,11); 868642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR0(d,e,a,b,c,12); nR0(c,d,e,a,b,13); nR0(b,c,d,e,a,14); nR0(a,b,c,d,e,15); 878642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR1(e,a,b,c,d,16); nR1(d,e,a,b,c,17); nR1(c,d,e,a,b,18); nR1(b,c,d,e,a,19); 888642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 898642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 908642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid 918642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlanddo_R2(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *block) 928642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 938642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR2(a,b,c,d,e,20); nR2(e,a,b,c,d,21); nR2(d,e,a,b,c,22); nR2(c,d,e,a,b,23); 948642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR2(b,c,d,e,a,24); nR2(a,b,c,d,e,25); nR2(e,a,b,c,d,26); nR2(d,e,a,b,c,27); 958642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR2(c,d,e,a,b,28); nR2(b,c,d,e,a,29); nR2(a,b,c,d,e,30); nR2(e,a,b,c,d,31); 968642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR2(d,e,a,b,c,32); nR2(c,d,e,a,b,33); nR2(b,c,d,e,a,34); nR2(a,b,c,d,e,35); 978642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR2(e,a,b,c,d,36); nR2(d,e,a,b,c,37); nR2(c,d,e,a,b,38); nR2(b,c,d,e,a,39); 988642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 998642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1008642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid 1018642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlanddo_R3(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *block) 1028642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 1038642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR3(a,b,c,d,e,40); nR3(e,a,b,c,d,41); nR3(d,e,a,b,c,42); nR3(c,d,e,a,b,43); 1048642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR3(b,c,d,e,a,44); nR3(a,b,c,d,e,45); nR3(e,a,b,c,d,46); nR3(d,e,a,b,c,47); 1058642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR3(c,d,e,a,b,48); nR3(b,c,d,e,a,49); nR3(a,b,c,d,e,50); nR3(e,a,b,c,d,51); 1068642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR3(d,e,a,b,c,52); nR3(c,d,e,a,b,53); nR3(b,c,d,e,a,54); nR3(a,b,c,d,e,55); 1078642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR3(e,a,b,c,d,56); nR3(d,e,a,b,c,57); nR3(c,d,e,a,b,58); nR3(b,c,d,e,a,59); 1088642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 1098642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1108642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid 1118642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlanddo_R4(u_int32_t *a, u_int32_t *b, u_int32_t *c, u_int32_t *d, u_int32_t *e, CHAR64LONG16 *block) 1128642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 1138642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR4(a,b,c,d,e,60); nR4(e,a,b,c,d,61); nR4(d,e,a,b,c,62); nR4(c,d,e,a,b,63); 1148642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR4(b,c,d,e,a,64); nR4(a,b,c,d,e,65); nR4(e,a,b,c,d,66); nR4(d,e,a,b,c,67); 1158642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR4(c,d,e,a,b,68); nR4(b,c,d,e,a,69); nR4(a,b,c,d,e,70); nR4(e,a,b,c,d,71); 1168642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR4(d,e,a,b,c,72); nR4(c,d,e,a,b,73); nR4(b,c,d,e,a,74); nR4(a,b,c,d,e,75); 1178642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland nR4(e,a,b,c,d,76); nR4(d,e,a,b,c,77); nR4(c,d,e,a,b,78); nR4(b,c,d,e,a,79); 1188642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 1198642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 1208642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1218642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 1228642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * Hash a single 512-bit block. This is the core of the algorithm. 1238642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 1248642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid SHA1Transform(state, buffer) 1258642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int32_t state[5]; 1268642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland const u_char buffer[64]; 1278642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 1288642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int32_t a, b, c, d, e; 1298642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland CHAR64LONG16 *block; 1308642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1318642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#ifdef SHA1HANDSOFF 1328642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland CHAR64LONG16 workspace; 1338642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 1348642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1358642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(buffer != 0); 1368642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(state != 0); 1378642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1388642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#ifdef SHA1HANDSOFF 1398642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland block = &workspace; 1408642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland (void)memcpy(block, buffer, 64); 1418642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#else 1428642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland block = (CHAR64LONG16 *)(void *)buffer; 1438642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 1448642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1458642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland /* Copy context->state[] to working vars */ 1468642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland a = state[0]; 1478642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland b = state[1]; 1488642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland c = state[2]; 1498642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland d = state[3]; 1508642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland e = state[4]; 1518642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1528642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#ifdef SPARC64_GCC_WORKAROUND 1538642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland do_R01(&a, &b, &c, &d, &e, block); 1548642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland do_R2(&a, &b, &c, &d, &e, block); 1558642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland do_R3(&a, &b, &c, &d, &e, block); 1568642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland do_R4(&a, &b, &c, &d, &e, block); 1578642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#else 1588642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland /* 4 rounds of 20 operations each. Loop unrolled. */ 1598642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); 1608642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); 1618642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); 1628642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); 1638642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); 1648642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); 1658642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); 1668642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); 1678642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); 1688642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); 1698642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); 1708642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); 1718642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); 1728642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); 1738642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); 1748642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); 1758642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); 1768642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); 1778642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); 1788642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); 1798642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif 1808642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1818642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland /* Add the working vars back into context.state[] */ 1828642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland state[0] += a; 1838642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland state[1] += b; 1848642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland state[2] += c; 1858642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland state[3] += d; 1868642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland state[4] += e; 1878642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1888642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland /* Wipe variables */ 1898642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland a = b = c = d = e = 0; 1908642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 1918642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1928642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 1938642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 1948642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * SHA1Init - Initialize new context 1958642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 1968642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid SHA1Init(context) 1978642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1_CTX *context; 1988642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 1998642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2008642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(context != 0); 2018642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2028642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland /* SHA1 initialization constants */ 2038642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->state[0] = 0x67452301; 2048642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->state[1] = 0xEFCDAB89; 2058642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->state[2] = 0x98BADCFE; 2068642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->state[3] = 0x10325476; 2078642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->state[4] = 0xC3D2E1F0; 2088642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->count[0] = context->count[1] = 0; 2098642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 2108642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2118642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2128642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 2138642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * Run your data through this. 2148642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 2158642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid SHA1Update(context, data, len) 2168642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1_CTX *context; 2178642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland const u_char *data; 2188642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int len; 2198642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 2208642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int i, j; 2218642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2228642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(context != 0); 2238642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(data != 0); 2248642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2258642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland j = context->count[0]; 2268642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland if ((context->count[0] += len << 3) < j) 2278642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland context->count[1] += (len>>29)+1; 2288642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland j = (j >> 3) & 63; 2298642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland if ((j + len) > 63) { 2308642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland (void)memcpy(&context->buffer[j], data, (i = 64-j)); 2318642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1Transform(context->state, context->buffer); 2328642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland for ( ; i + 63 < len; i += 64) 2338642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1Transform(context->state, &data[i]); 2348642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland j = 0; 2358642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland } else { 2368642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland i = 0; 2378642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland } 2388642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland (void)memcpy(&context->buffer[j], &data[i], len - i); 2398642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 2408642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2418642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2428642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland/* 2438642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland * Add padding and return the message digest. 2448642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland */ 2458642b7fba54727a38f751516bcdc452fb09ef610Brian Swetlandvoid SHA1Final(digest, context) 2468642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_char digest[20]; 2478642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1_CTX* context; 2488642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland{ 2498642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_int i; 2508642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland u_char finalcount[8]; 2518642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2528642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(digest != 0); 2538642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland assert(context != 0); 2548642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2558642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland for (i = 0; i < 8; i++) { 2568642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland finalcount[i] = (u_char)((context->count[(i >= 4 ? 0 : 1)] 2578642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ 2588642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland } 2598642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1Update(context, (const u_char *)"\200", 1); 2608642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland while ((context->count[0] & 504) != 448) 2618642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1Update(context, (const u_char *)"\0", 1); 2628642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ 2638642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2648642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland if (digest) { 2658642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland for (i = 0; i < 20; i++) 2668642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland digest[i] = (u_char) 2678642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); 2688642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland } 2698642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland} 2708642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland 2718642b7fba54727a38f751516bcdc452fb09ef610Brian Swetland#endif /* HAVE_SHA1_H */ 272