--- a/telepathygabble/src/sha1.c Tue Feb 02 01:10:06 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,649 +0,0 @@
-/*-
- * Copyright (c) 2001-2003 Allan Saddi <allan@saddi.com>
- * All rights reserved.
- *
- * 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 above 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.
- *
- * THIS SOFTWARE IS PROVIDED BY ALLAN SADDI AND HIS CONTRIBUTORS ``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 ALLAN SADDI OR HIS 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.
- *
- * $Id: sha1.c 680 2003-07-25 21:57:38Z asaddi $
- */
-
-/*
- * Define WORDS_BIGENDIAN if compiling on a big-endian architecture.
- *
- * Define SHA1_TEST to test the implementation using the NIST's
- * sample messages. The output should be:
- *
- * a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d
- * 84983e44 1c3bd26e baae4aa1 f95129e5 e54670f1
- * 34aa973c d4c4daa4 f61eeb2b dbad2731 6534016f
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif /* HAVE_CONFIG_H */
-
-#if HAVE_INTTYPES_H
-# include <inttypes.h>
-#else
-# if HAVE_STDINT_H
-# include <stdint.h>
-# endif
-#endif
-
-#include <string.h>
-
-
-#include "sha1.h"
-
-#ifndef lint
-static const char rcsid[] =
- "$Id: sha1.c 680 2003-07-25 21:57:38Z asaddi $";
-#endif /* !lint */
-
-#define ROTL(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
-#define ROTR(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
-
-#define F_0_19(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
-#define F_20_39(x, y, z) ((x) ^ (y) ^ (z))
-#define F_40_59(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
-#define F_60_79(x, y, z) ((x) ^ (y) ^ (z))
-
-#define DO_ROUND(F, K) { \
- temp = ROTL(a, 5) + F(b, c, d) + e + *(W++) + K; \
- e = d; \
- d = c; \
- c = ROTL(b, 30); \
- b = a; \
- a = temp; \
-}
-
-#define K_0_19 0x5a827999L
-#define K_20_39 0x6ed9eba1L
-#define K_40_59 0x8f1bbcdcL
-#define K_60_79 0xca62c1d6L
-
-#ifndef RUNTIME_ENDIAN
-
-#ifdef WORDS_BIGENDIAN
-
-#define BYTESWAP(x) (x)
-#define BYTESWAP64(x) (x)
-
-#else /* WORDS_BIGENDIAN */
-
-#define BYTESWAP(x) ((ROTR((x), 8) & 0xff00ff00L) | \
- (ROTL((x), 8) & 0x00ff00ffL))
-#define BYTESWAP64(x) _byteswap64(x)
-
-static
-#ifdef G_HAVE_INLINE
-inline
-#endif
-uint64_t _byteswap64(uint64_t x)
-{
- uint32_t a = x >> 32;
- uint32_t b = (uint32_t) x;
- return ((uint64_t) BYTESWAP(b) << 32) | (uint64_t) BYTESWAP(a);
-}
-
-#endif /* WORDS_BIGENDIAN */
-
-#else /* !RUNTIME_ENDIAN */
-
-#define BYTESWAP(x) _byteswap(sc->littleEndian, x)
-#define BYTESWAP64(x) _byteswap64(sc->littleEndian, x)
-
-#define _BYTESWAP(x) ((ROTR((x), 8) & 0xff00ff00L) | \
- (ROTL((x), 8) & 0x00ff00ffL))
-#define _BYTESWAP64(x) __byteswap64(x)
-
-static
-#ifdef G_HAVE_INLINE
-inline
-#endif
-uint64_t __byteswap64(uint64_t x)
-{
- uint32_t a = x >> 32;
- uint32_t b = (uint32_t) x;
- return ((uint64_t) _BYTESWAP(b) << 32) | (uint64_t) _BYTESWAP(a);
-}
-
-static
-#ifdef G_HAVE_INLINE
-inline
-#endif
-uint32_t _byteswap(int littleEndian, uint32_t x)
-{
- if (!littleEndian)
- return x;
- else
- return _BYTESWAP(x);
-}
-
-static
-#ifdef G_HAVE_INLINE
-inline
-#endif
-uint64_t _byteswap64(int littleEndian, uint64_t x)
-{
- if (!littleEndian)
- return x;
- else
- return _BYTESWAP64(x);
-}
-
-static
-#ifdef G_HAVE_INLINE
-inline
-#endif
-void setEndian(int *littleEndianp)
-{
- union {
- uint32_t w;
- uint8_t b[4];
- } endian;
-
- endian.w = 1L;
- *littleEndianp = endian.b[0] != 0;
-}
-
-#endif /* !RUNTIME_ENDIAN */
-
-static const uint8_t padding[64] = {
- 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-void
-SHA1Init (SHA1Context *sc)
-{
-#ifdef RUNTIME_ENDIAN
- setEndian (&sc->littleEndian);
-#endif /* RUNTIME_ENDIAN */
-
- sc->totalLength = 0LL;
- sc->hash[0] = 0x67452301L;
- sc->hash[1] = 0xefcdab89L;
- sc->hash[2] = 0x98badcfeL;
- sc->hash[3] = 0x10325476L;
- sc->hash[4] = 0xc3d2e1f0L;
- sc->bufferLength = 0L;
-}
-
-static void
-burnStack (int size)
-{
- char buf[128];
-
- memset (buf, 0, sizeof (buf));
- size -= sizeof (buf);
- if (size > 0)
- burnStack (size);
-}
-
-static void
-SHA1Guts (SHA1Context *sc, const uint32_t *cbuf)
-{
- uint32_t buf[80];
- uint32_t *W, *W3, *W8, *W14, *W16;
- uint32_t a, b, c, d, e, temp;
- int i;
-
- W = buf;
-
- for (i = 15; i >= 0; i--) {
- *(W++) = BYTESWAP(*cbuf);
- cbuf++;
- }
-
- W16 = &buf[0];
- W14 = &buf[2];
- W8 = &buf[8];
- W3 = &buf[13];
-
- for (i = 63; i >= 0; i--) {
- *W = *(W3++) ^ *(W8++) ^ *(W14++) ^ *(W16++);
- *W = ROTL(*W, 1);
- W++;
- }
-
- a = sc->hash[0];
- b = sc->hash[1];
- c = sc->hash[2];
- d = sc->hash[3];
- e = sc->hash[4];
-
- W = buf;
-
-#ifndef SHA1_UNROLL
-#define SHA1_UNROLL 20
-#endif /* !SHA1_UNROLL */
-
-#if SHA1_UNROLL == 1
- for (i = 19; i >= 0; i--)
- DO_ROUND(F_0_19, K_0_19);
-
- for (i = 19; i >= 0; i--)
- DO_ROUND(F_20_39, K_20_39);
-
- for (i = 19; i >= 0; i--)
- DO_ROUND(F_40_59, K_40_59);
-
- for (i = 19; i >= 0; i--)
- DO_ROUND(F_60_79, K_60_79);
-#elif SHA1_UNROLL == 2
- for (i = 9; i >= 0; i--) {
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- }
-
- for (i = 9; i >= 0; i--) {
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- }
-
- for (i = 9; i >= 0; i--) {
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- }
-
- for (i = 9; i >= 0; i--) {
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- }
-#elif SHA1_UNROLL == 4
- for (i = 4; i >= 0; i--) {
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- }
-
- for (i = 4; i >= 0; i--) {
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- }
-
- for (i = 4; i >= 0; i--) {
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- }
-
- for (i = 4; i >= 0; i--) {
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- }
-#elif SHA1_UNROLL == 5
- for (i = 3; i >= 0; i--) {
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- }
-
- for (i = 3; i >= 0; i--) {
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- }
-
- for (i = 3; i >= 0; i--) {
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- }
-
- for (i = 3; i >= 0; i--) {
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- }
-#elif SHA1_UNROLL == 10
- for (i = 1; i >= 0; i--) {
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- }
-
- for (i = 1; i >= 0; i--) {
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- }
-
- for (i = 1; i >= 0; i--) {
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- }
-
- for (i = 1; i >= 0; i--) {
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- }
-#elif SHA1_UNROLL == 20
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
- DO_ROUND(F_0_19, K_0_19);
-
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
- DO_ROUND(F_20_39, K_20_39);
-
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
- DO_ROUND(F_40_59, K_40_59);
-
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
- DO_ROUND(F_60_79, K_60_79);
-#else /* SHA1_UNROLL */
-#error SHA1_UNROLL must be 1, 2, 4, 5, 10 or 20!
-#endif
-
- sc->hash[0] += a;
- sc->hash[1] += b;
- sc->hash[2] += c;
- sc->hash[3] += d;
- sc->hash[4] += e;
-}
-
-void
-SHA1Update (SHA1Context *sc, const void *vdata, uint32_t len)
-{
- const uint8_t *data = vdata;
- uint32_t bufferBytesLeft;
- uint32_t bytesToCopy;
- int needBurn = 0;
-
-#ifdef SHA1_FAST_COPY
- if (sc->bufferLength) {
- bufferBytesLeft = 64L - sc->bufferLength;
-
- bytesToCopy = bufferBytesLeft;
- if (bytesToCopy > len)
- bytesToCopy = len;
-
- memcpy (&sc->buffer.bytes[sc->bufferLength], data, bytesToCopy);
-
- sc->totalLength += bytesToCopy * 8L;
-
- sc->bufferLength += bytesToCopy;
- data += bytesToCopy;
- len -= bytesToCopy;
-
- if (sc->bufferLength == 64L) {
- SHA1Guts (sc, sc->buffer.words);
- needBurn = 1;
- sc->bufferLength = 0L;
- }
- }
-
- while (len > 63) {
- sc->totalLength += 512L;
-
- SHA1Guts (sc, data);
- needBurn = 1;
-
- data += 64L;
- len -= 64L;
- }
-
- if (len) {
- memcpy (&sc->buffer.bytes[sc->bufferLength], data, len);
-
- sc->totalLength += len * 8L;
-
- sc->bufferLength += len;
- }
-#else /* SHA1_FAST_COPY */
- while (len) {
- bufferBytesLeft = 64L - sc->bufferLength;
-
- bytesToCopy = bufferBytesLeft;
- if (bytesToCopy > len)
- bytesToCopy = len;
-
- memcpy (&sc->buffer.bytes[sc->bufferLength], data, bytesToCopy);
-
- sc->totalLength += bytesToCopy * 8L;
-
- sc->bufferLength += bytesToCopy;
- data += bytesToCopy;
- len -= bytesToCopy;
-
- if (sc->bufferLength == 64L) {
- SHA1Guts (sc, sc->buffer.words);
- needBurn = 1;
- sc->bufferLength = 0L;
- }
- }
-#endif /* SHA1_FAST_COPY */
-
- if (needBurn)
- burnStack (sizeof (uint32_t[86]) + sizeof (uint32_t *[5]) + sizeof (int));
-}
-
-void
-SHA1Final (SHA1Context *sc, uint8_t hash[SHA1_HASH_SIZE])
-{
- uint32_t bytesToPad;
- uint64_t lengthPad;
- int i;
-
- bytesToPad = 120L - sc->bufferLength;
- if (bytesToPad > 64L)
- bytesToPad -= 64L;
-
- lengthPad = BYTESWAP64(sc->totalLength);
-
- SHA1Update (sc, padding, bytesToPad);
- SHA1Update (sc, &lengthPad, 8L);
-
- if (hash) {
- for (i = 0; i < SHA1_HASH_WORDS; i++) {
-#ifdef SHA1_FAST_COPY
- *((uint32_t *) hash) = BYTESWAP(sc->hash[i]);
-#else /* SHA1_FAST_COPY */
- hash[0] = (uint8_t) (sc->hash[i] >> 24);
- hash[1] = (uint8_t) (sc->hash[i] >> 16);
- hash[2] = (uint8_t) (sc->hash[i] >> 8);
- hash[3] = (uint8_t) sc->hash[i];
-#endif /* SHA1_FAST_COPY */
- hash += 4;
- }
- }
-}
-
-#ifdef SHA1_TEST
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-int
-main (int argc, char *argv[])
-{
- SHA1Context foo;
- uint8_t hash[SHA1_HASH_SIZE];
- char buf[1000];
- int i;
-
- SHA1Init (&foo);
- SHA1Update (&foo, "abc", 3);
- SHA1Final (&foo, hash);
-
- for (i = 0; i < SHA1_HASH_SIZE;) {
- printf ("%02x", hash[i++]);
- if (!(i % 4))
- printf (" ");
- }
- printf ("\n");
-
- SHA1Init (&foo);
- SHA1Update (&foo,
- "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
- 56);
- SHA1Final (&foo, hash);
-
- for (i = 0; i < SHA1_HASH_SIZE;) {
- printf ("%02x", hash[i++]);
- if (!(i % 4))
- printf (" ");
- }
- printf ("\n");
-
- SHA1Init (&foo);
- memset (buf, 'a', sizeof (buf));
- for (i = 0; i < 1000; i++)
- SHA1Update (&foo, buf, sizeof (buf));
- SHA1Final (&foo, hash);
-
- for (i = 0; i < SHA1_HASH_SIZE;) {
- printf ("%02x", hash[i++]);
- if (!(i % 4))
- printf (" ");
- }
- printf ("\n");
-
- exit (0);
-}
-
-#endif /* SHA1_TEST */
-
-