1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownStick the enclosed text in a file "sha1.test.c". 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownHere is a sample run: 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hugh $ cc sha1.test.c 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hugh $ valgrind ./a.out 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26189== valgrind-20020227, a memory error detector for x86 GNU/Linux. 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26189== Copyright (C) 2000-200x, and GNU GPL'd, by Julian Seward. 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26189== For more details, rerun with: -v 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26189== 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown valgrind: vg_main.c:495 (vgPlain_create_translation_for): Assertion `trans_size > 0 && trans_size < 65536' failed. 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Please report this bug to me at: jseward@acm.org 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown hugh $ valgrind --instrument=no ./a.out 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26209== valgrind-20020227, a memory error detector for x86 GNU/Linux. 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26209== Copyright (C) 2000-200x, and GNU GPL'd, by Julian Seward. 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26209== For more details, rerun with: -v 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26209== 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ==26209== 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* ================ sha1.c ================ */ 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownSHA-1 in C 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBy Steve Reid <steve@edmweb.com> 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown100% Public Domain 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownTest Vectors (from FIPS PUB 180-1) 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown"abc" 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownA million repetitions of "a" 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* #define LITTLE_ENDIAN * This should be #define'd already, if true. */ 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* #define SHA1HANDSOFF * Copies data before messing with it. */ 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SHA1HANDSOFF 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <config.h> 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <string.h> 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <sys/types.h> /* for u_int*_t */ 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* ================ sha1.h ================ */ 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownSHA-1 in C 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBy Steve Reid <steve@edmweb.com> 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown100% Public Domain 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef struct { 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown u_int32_t state[5]; 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown u_int32_t count[2]; 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned char buffer[64]; 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} SHA1_CTX; 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]); 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Init(SHA1_CTX* context); 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len); 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Final(unsigned char digest[20], SHA1_CTX* context); 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* ================ end of sha1.h ================ */ 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef HAVE_SYS_ENDIAN_H 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <sys/endian.h> 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef HAVE_ENDIAN_H 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <endian.h> 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* blk0() and blk() perform the initial expand. */ 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* I got the idea of expanding during the round function from SSLeay */ 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if BYTE_ORDER == LITTLE_ENDIAN 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ 83ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown |(rol(block->l[i],8)&0x00FF00FF)) 84ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#elif BYTE_ORDER == BIG_ENDIAN 85ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define blk0(i) block->l[i] 86ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 87ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#error "Endianness not defined!" 88ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 89ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ 90ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ^block->l[(i+2)&15]^block->l[i&15],1)) 91ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 92ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ 93ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); 94ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); 95ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); 96ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); 97ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); 98ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 99ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Hash a single 512-bit block. This is the core of the algorithm. */ 101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]) 103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownu_int32_t a, b, c, d, e; 105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Browntypedef union { 106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned char c[64]; 107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown u_int32_t l[16]; 108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} CHAR64LONG16; 109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef SHA1HANDSOFF 110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownCHAR64LONG16 block[1]; /* use array to appear as a pointer */ 111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memcpy(block, buffer, 64); 112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* The following had better never be used because it causes the 114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * pointer-to-const buffer to be cast into a pointer to non-const. 115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * And the result is written through. I threw a "const" in, hoping 116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * this will cause a diagnostic. 117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownCHAR64LONG16* block = (const CHAR64LONG16*)buffer; 119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Copy context->state[] to working vars */ 121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown a = state[0]; 122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown b = state[1]; 123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c = state[2]; 124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown d = state[3]; 125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown e = state[4]; 126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* 4 rounds of 20 operations each. Loop unrolled. */ 127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 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); 147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Add the working vars back into context.state[] */ 148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown state[0] += a; 149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown state[1] += b; 150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown state[2] += c; 151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown state[3] += d; 152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown state[4] += e; 153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Wipe variables */ 154ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown a = b = c = d = e = 0; 155ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifdef SHA1HANDSOFF 156ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memset(block, '\0', sizeof(block)); 157ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 158ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 159ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 160ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 161ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* SHA1Init - Initialize new context */ 162ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 163ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Init(SHA1_CTX* context) 164ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 165ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* SHA1 initialization constants */ 166ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->state[0] = 0x67452301; 167ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->state[1] = 0xEFCDAB89; 168ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->state[2] = 0x98BADCFE; 169ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->state[3] = 0x10325476; 170ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->state[4] = 0xC3D2E1F0; 171ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->count[0] = context->count[1] = 0; 172ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 173ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 174ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 175ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Run your data through this. */ 176ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 177ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len) 178ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 179ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownu_int32_t i; 180ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownu_int32_t j; 181ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 182ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = context->count[0]; 183ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ((context->count[0] += len << 3) < j) 184ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->count[1]++; 185ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown context->count[1] += (len>>29); 186ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = (j >> 3) & 63; 187ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown if ((j + len) > 63) { 188ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memcpy(&context->buffer[j], data, (i = 64-j)); 189ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Transform(context->state, context->buffer); 190ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for ( ; i + 63 < len; i += 64) { 191ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Transform(context->state, &data[i]); 192ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 193ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown j = 0; 194ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 195ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown else i = 0; 196ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memcpy(&context->buffer[j], &data[i], len - i); 197ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 198ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 199ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 200ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Add padding and return the message digest. */ 201ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 202ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownvoid SHA1Final(unsigned char digest[20], SHA1_CTX* context) 203ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 204ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownunsigned i; 205ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownunsigned char finalcount[8]; 206ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownunsigned char c; 207ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 208ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if 0 /* untested "improvement" by DHR */ 209ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Convert context->count to a sequence of bytes 210ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * in finalcount. Second element first, but 211ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * big-endian order within element. 212ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown * But we do it all backwards. 213ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown */ 214ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned char *fcp = &finalcount[8]; 215ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 216ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 2; i++) 217ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown { 218ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown u_int32_t t = context->count[i]; 219ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown int j; 220ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 221ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (j = 0; j < 4; t >>= 8, j++) 222ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown *--fcp = (unsigned char) t 223ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 224ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 225ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 8; i++) { 226ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)] 227ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ 228ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 229ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 230ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c = 0200; 231ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Update(context, &c, 1); 232ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown while ((context->count[0] & 504) != 448) { 233ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown c = 0000; 234ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Update(context, &c, 1); 235ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 236ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ 237ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown for (i = 0; i < 20; i++) { 238ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown digest[i] = (unsigned char) 239ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); 240ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown } 241ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Wipe variables */ 242ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memset(context, '\0', sizeof(*context)); 243ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown memset(&finalcount, '\0', sizeof(finalcount)); 244ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 245ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* ================ end of sha1.c ================ */ 246ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 247ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownint 248ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmain(int argc, char **argv) 249ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown{ 250ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1_CTX ctx; 251ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned char hash[20]; 252436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov unsigned char abc[] = "abc"; 253ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 254ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Init(&ctx); 255436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov SHA1Update(&ctx, abc, 3); 256ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SHA1Final(hash, &ctx); 257ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown return 0; 258ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown} 259ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 260ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 261