mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
278 lines
7.6 KiB
C
278 lines
7.6 KiB
C
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
/* Acquired from:
|
|
* $OpenBSD: sha1.c,v 1.9 1997/07/23 21:12:32 kstailey Exp $ */
|
|
|
|
/*
|
|
* SHA-1 in C
|
|
* By Steve Reid <steve@edmweb.com>
|
|
* 100% Public Domain
|
|
*
|
|
* Test Vectors (from FIPS PUB 180-1)
|
|
* "abc"
|
|
* A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
|
|
* "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
|
|
* 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
|
|
* A million repetitions of "a"
|
|
* 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
|
|
*/
|
|
|
|
/*
|
|
* This code assumes uint32 is 32 bits and char is 8 bits
|
|
*/
|
|
|
|
#include "portable.h"
|
|
#include <ac/string.h>
|
|
|
|
/* include socket.h to get sys/types.h and/or winsock2.h */
|
|
#include <ac/socket.h>
|
|
|
|
#include <ac/param.h>
|
|
|
|
#include "lutil_sha1.h"
|
|
|
|
/* undefining this will cause pointer alignment errors */
|
|
#define SHA1HANDSOFF /* Copies data before messing with it. */
|
|
#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
|
|
*/
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
# define blk0(i) (block[i] = (rol(block[i],24)&0xFF00FF00) \
|
|
|(rol(block[i],8)&0x00FF00FF))
|
|
#else
|
|
# define blk0(i) block[i]
|
|
#endif
|
|
#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \
|
|
^block[(i+2)&15]^block[i&15],1))
|
|
|
|
/*
|
|
* (R0+R1), R2, R3, R4 are the different operations (rounds) 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
|
|
lutil_SHA1Transform( uint32 *state, const unsigned char *buffer )
|
|
{
|
|
uint32 a, b, c, d, e;
|
|
|
|
#ifdef SHA1HANDSOFF
|
|
uint32 block[16];
|
|
(void)memcpy(block, buffer, 64);
|
|
#else
|
|
uint32 *block = (u_int32 *) 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;
|
|
}
|
|
|
|
|
|
/*
|
|
* lutil_SHA1Init - Initialize new context
|
|
*/
|
|
void
|
|
lutil_SHA1Init( lutil_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
|
|
lutil_SHA1Update(
|
|
lutil_SHA1_CTX *context,
|
|
const unsigned char *data,
|
|
uint32 len
|
|
)
|
|
{
|
|
u_int i, j;
|
|
|
|
j = context->count[0];
|
|
if ((context->count[0] += len << 3) < j)
|
|
context->count[1] += (len>>29)+1;
|
|
j = (j >> 3) & 63;
|
|
if ((j + len) > 63) {
|
|
(void)memcpy(&context->buffer[j], data, (i = 64-j));
|
|
lutil_SHA1Transform(context->state, context->buffer);
|
|
for ( ; i + 63 < len; i += 64)
|
|
lutil_SHA1Transform(context->state, &data[i]);
|
|
j = 0;
|
|
} else {
|
|
i = 0;
|
|
}
|
|
(void)memcpy(&context->buffer[j], &data[i], len - i);
|
|
}
|
|
|
|
|
|
/*
|
|
* Add padding and return the message digest.
|
|
*/
|
|
void
|
|
lutil_SHA1Final( unsigned char *digest, lutil_SHA1_CTX *context )
|
|
{
|
|
u_int i;
|
|
unsigned char finalcount[8];
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
|
|
>> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */
|
|
}
|
|
lutil_SHA1Update(context, (unsigned char *)"\200", 1);
|
|
while ((context->count[0] & 504) != 448)
|
|
lutil_SHA1Update(context, (unsigned char *)"\0", 1);
|
|
lutil_SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
|
|
|
|
if (digest) {
|
|
for (i = 0; i < 20; i++)
|
|
digest[i] = (unsigned char)
|
|
((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
|
|
}
|
|
}
|
|
|
|
|
|
/* sha1hl.c
|
|
* ----------------------------------------------------------------------------
|
|
* "THE BEER-WARE LICENSE" (Revision 42):
|
|
* <phk@login.dkuug.dk> wrote this file. As long as you retain this notice you
|
|
* can do whatever you want with this stuff. If we meet some day, and you think
|
|
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char rcsid[] = "$OpenBSD: sha1hl.c,v 1.1 1997/07/12 20:06:03 millert Exp $";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <stdio.h>
|
|
#include <ac/stdlib.h>
|
|
|
|
#include <ac/errno.h>
|
|
#include <ac/unistd.h>
|
|
|
|
#ifdef HAVE_SYS_FILE_H
|
|
#include <sys/file.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_UIO_H
|
|
#include <sys/uio.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_IO_H
|
|
#include <io.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FCNTL_H
|
|
#include <fcntl.h>
|
|
#endif
|
|
|
|
|
|
/* ARGSUSED */
|
|
char *
|
|
lutil_SHA1End( lutil_SHA1_CTX *ctx, char *buf )
|
|
{
|
|
int i;
|
|
char *p = buf;
|
|
unsigned char digest[20];
|
|
static const char hex[]="0123456789abcdef";
|
|
|
|
if (p == NULL && (p = malloc(41)) == NULL)
|
|
return 0;
|
|
|
|
lutil_SHA1Final(digest,ctx);
|
|
for (i = 0; i < 20; i++) {
|
|
p[i + i] = hex[digest[i] >> 4];
|
|
p[i + i + 1] = hex[digest[i] & 0x0f];
|
|
}
|
|
p[i + i] = '\0';
|
|
return(p);
|
|
}
|
|
|
|
char *
|
|
lutil_SHA1File( char *filename, char *buf )
|
|
{
|
|
unsigned char buffer[BUFSIZ];
|
|
lutil_SHA1_CTX ctx;
|
|
int fd, num, oerrno;
|
|
|
|
lutil_SHA1Init(&ctx);
|
|
|
|
if ((fd = open(filename,O_RDONLY)) < 0)
|
|
return(0);
|
|
|
|
while ((num = read(fd, buffer, sizeof(buffer))) > 0)
|
|
lutil_SHA1Update(&ctx, buffer, num);
|
|
|
|
oerrno = errno;
|
|
close(fd);
|
|
errno = oerrno;
|
|
return(num < 0 ? 0 : lutil_SHA1End(&ctx, buf));
|
|
}
|
|
|
|
char *
|
|
lutil_SHA1Data( const unsigned char *data, size_t len, char *buf )
|
|
{
|
|
lutil_SHA1_CTX ctx;
|
|
|
|
lutil_SHA1Init(&ctx);
|
|
lutil_SHA1Update(&ctx, data, len);
|
|
return(lutil_SHA1End(&ctx, buf));
|
|
}
|