diff options
Diffstat (limited to 'sqmail-4.3.07/src/sha1.c')
-rw-r--r-- | sqmail-4.3.07/src/sha1.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/sqmail-4.3.07/src/sha1.c b/sqmail-4.3.07/src/sha1.c deleted file mode 100644 index ee06e92..0000000 --- a/sqmail-4.3.07/src/sha1.c +++ /dev/null @@ -1,188 +0,0 @@ -/* -SHA-1 in C -By Steve Reid <sreid@sea-to-sky.net> -100% Public Domain - ------------------ -Modified 7/98 -By James H. Brown <jbrown@burgoyne.com> -Still 100% Public Domain - ------------------ -Adopted for s/qmail 2/2020 -feh -Still 100% Public Domain; though requiring fehQlibs-14 - -*/ - -#include <string.h> -#include "sha1.h" -#include "byte.h" - -// #define SHA1HANDSOFF - -#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) - -/* blk0() and blk() perform the initial expand. */ -/* I got the idea of expanding during the round function from SSLeay */ -/* FIXME: can we do this in an endian-proof way? */ -#ifndef WORDS_BIGENDIAN -#define blk0(i) (block->l[i] = (rol(block->l[i],24) & 0xFF00FF00) \ - | (rol(block->l[i],8) & 0x00FF00FF)) -#else -#define blk0(i) block->l[i] -#endif -#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ - ^block->l[(i+2)&15]^block->l[i&15],1)) - -/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ -#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); -#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); -#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); -#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); -#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); - -/* Hash a single 512-bit block. This is the core of the algorithm. */ - -void sha1_transform(uint32_t state[5],const uint8_t buffer[SHA1_BLOCKSIZE]) -{ - uint32_t a, b, c, d, e; - typedef union { - uint8_t c[SHA1_BLOCKSIZE]; - uint32_t l[16]; - } CHAR64LONG16; - CHAR64LONG16 *block; - -#ifdef SHA1HANDSOFF - static uint8_t workspace[SHA1_BLOCKSIZE]; - - block = (CHAR64LONG16 *) workspace; - byte_copy(block,SHA1_BLOCKSIZE,buffer); -#else - block = (CHAR64LONG16 *) buffer; -#endif - - /* Copy context->state[] to working vars */ - a = state[0]; - b = state[1]; - c = state[2]; - d = state[3]; - e = state[4]; - - /* 4 rounds of 20 operations each. Loop unrolled. */ - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - 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); - - /* Add the working vars back into context.state[] */ - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - state[4] += e; - - /* Wipe variables */ - a = b = c = d = e = 0; - -#ifdef SHA1HANDSOFF - byte_zero(block,64); -#endif -} - -/* SHA1Init - Initialize new context */ - -void sha1_init(sha1_ctx *context) -{ - /* SHA1 initialization constants */ - context->state[0] = 0x67452301; - context->state[1] = 0xEFCDAB89; - context->state[2] = 0x98BADCFE; - context->state[3] = 0x10325476; - context->state[4] = 0xC3D2E1F0; - context->count[0] = context->count[1] = 0; -} - -/* Run your data through this. */ - -void sha1_update(sha1_ctx *context,const uint8_t *data,uint32_t len) -{ - uint32_t i, j; - - j = (context->count[0] >> 3) & 63; - if ((context->count[0] += len << 3) < (len << 3)) - context->count[1]++; - context->count[1] += (len >> 29); - if ((j + len) > 63) { - byte_copy(&context->buffer[j],(i = 64 - j),data); - sha1_transform(context->state,context->buffer); - for (; i + 63 < len; i += 64) { - sha1_transform(context->state,data + i); - } - j = 0; - } else - i = 0; - byte_copy(&context->buffer[j],len - i,&data[i]); -} - -/* Add padding and return the message digest. */ - -void sha1_final(uint8_t digest[SHA1_DIGESTSIZE],sha1_ctx *context) -{ - uint32_t i; - uint8_t finalcount[8]; - - for (i = 0; i < 8; i++) { - finalcount[i] = (uint8_t)((context->count[(i >= 4 ? 0 : 1)] - >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */ - } - sha1_update(context,(uint8_t *) "\200",1); - - while ((context->count[0] & 504) != 448) - sha1_update(context,(uint8_t *) "\0",1); - - sha1_update(context,finalcount,8); /* Should cause a SHA1_Transform() */ - - for (i = 0; i < SHA1_DIGESTSIZE; i++) - digest[i] = (uint8_t) ((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255); - - /* Wipe variables */ - i = 0; - byte_zero(context->buffer,64); - byte_zero(context->state,20); - byte_zero(context->count,8); - byte_zero(finalcount,8); - -#ifdef SHA1HANDSOFF /* make SHA1Transform overwrite its own static vars */ - sha1_transform(context->state,context->buffer); -#endif -} - -void sha1_hash(char *hash,const char *str,uint32_t len) -{ - sha1_ctx context; - int i; - - sha1_init(&context); - for (i = 0; i < len; i++) - sha1_update(&context,(uint8_t *)str + i,1); - - sha1_final((uint8_t *)hash,&context); - hash[20] = '\0'; -} |