diff options
Diffstat (limited to 'protocols/Gadu-Gadu/libgadu/sha1.c')
| -rw-r--r-- | protocols/Gadu-Gadu/libgadu/sha1.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/protocols/Gadu-Gadu/libgadu/sha1.c b/protocols/Gadu-Gadu/libgadu/sha1.c new file mode 100644 index 0000000000..d68efc5b98 --- /dev/null +++ b/protocols/Gadu-Gadu/libgadu/sha1.c @@ -0,0 +1,308 @@ +/* coding: UTF-8 */
+/* $Id: sha1.c,v 1.4 2007-07-20 23:00:50 wojtekka Exp $ */
+
+/*
+ * (C) Copyright 2007 Wojtek Kaniewski <wojtekka@irc.pl>
+ *
+ * Public domain SHA-1 implementation by Steve Reid <steve@edmweb.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License Version
+ * 2.1 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+/**
+ * \file sha1.c
+ *
+ * \brief Funkcje wyznaczania skrĂłtu SHA1
+ */
+
+#include <string.h>
+#include <sys/types.h>
+#ifdef _WIN32
+#include "win32.h"
+#else
+#include <unistd.h>
+#endif
+
+#include "libgadu.h"
+
+/** \cond ignore */
+
+#if defined(GG_CONFIG_HAVE_OPENSSL) && !defined(GG_CONFIG_MIRANDA)
+
+#include <openssl/sha.h>
+
+#else
+
+/*
+SHA-1 in C
+By Steve Reid <steve@edmweb.com>
+100% Public Domain
+
+Modified by Wojtek Kaniewski <wojtekka@toxygen.net> for compatibility
+with libgadu and OpenSSL API.
+
+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
+*/
+
+/* #define LITTLE_ENDIAN * This should be #define'd if true. */
+/* #define SHA1HANDSOFF * Copies data before messing with it. */
+
+#include <string.h>
+
+typedef struct {
+ uint32_t state[5];
+ uint32_t count[2];
+ unsigned char buffer[64];
+} SHA_CTX;
+
+static void SHA1_Transform(uint32_t state[5], const unsigned char buffer[64]);
+static void SHA1_Init(SHA_CTX* context);
+static void SHA1_Update(SHA_CTX* context, const unsigned char* data, unsigned int len);
+static void SHA1_Final(unsigned char digest[20], SHA_CTX* context);
+
+#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 */
+#ifndef GG_CONFIG_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. */
+
+static void SHA1_Transform(uint32_t state[5], const unsigned char buffer[64])
+{
+uint32_t a, b, c, d, e;
+typedef union {
+ unsigned char c[64];
+ uint32_t l[16];
+} CHAR64LONG16;
+CHAR64LONG16* block;
+static unsigned char workspace[64];
+ block = (CHAR64LONG16*)workspace;
+ memcpy(block, buffer, 64);
+ /* 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;
+}
+
+
+/* SHA1_Init - Initialize new context */
+
+static void SHA1_Init(SHA_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. */
+
+static void SHA1_Update(SHA_CTX* context, const unsigned char* data, unsigned int len)
+{
+unsigned int 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) {
+ memcpy(&context->buffer[j], data, (i = 64-j));
+ SHA1_Transform(context->state, context->buffer);
+ for ( ; i + 63 < len; i += 64) {
+ SHA1_Transform(context->state, &data[i]);
+ }
+ j = 0;
+ }
+ else i = 0;
+ memcpy(&context->buffer[j], &data[i], len - i);
+}
+
+
+/* Add padding and return the message digest. */
+
+static void SHA1_Final(unsigned char digest[20], SHA_CTX* context)
+{
+uint32_t i, j;
+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 */
+ }
+ SHA1_Update(context, (unsigned char *)"\200", 1);
+ while ((context->count[0] & 504) != 448) {
+ SHA1_Update(context, (unsigned char *)"\0", 1);
+ }
+ SHA1_Update(context, finalcount, 8); /* Should cause a SHA1_Transform() */
+ for (i = 0; i < 20; i++) {
+ digest[i] = (unsigned char)
+ ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
+ }
+ /* Wipe variables */
+ i = j = 0;
+ memset(context->buffer, 0, 64);
+ memset(context->state, 0, 20);
+ memset(context->count, 0, 8);
+ memset(&finalcount, 0, 8);
+#ifdef SHA1HANDSOFF /* make SHA1_Transform overwrite it's own static vars */
+ SHA1_Transform(context->state, context->buffer);
+#endif
+}
+
+#endif /* GG_CONFIG_HAVE_OPENSSL */
+
+/** \endcond */
+
+/** \cond internal */
+
+/**
+ * \internal Liczy skrĂłt SHA1 z ziarna i hasĹa.
+ *
+ * \param password HasĹo
+ * \param seed Ziarno
+ * \param result Bufor na wynik funkcji skrĂłtu (20 bajtĂłw)
+ */
+void gg_login_hash_sha1(const char *password, uint32_t seed, uint8_t *result)
+{
+ SHA_CTX ctx;
+
+ SHA1_Init(&ctx);
+ SHA1_Update(&ctx, (const unsigned char*) password, (unsigned int)strlen(password));
+ seed = gg_fix32(seed);
+ SHA1_Update(&ctx, (uint8_t*) &seed, 4);
+
+ SHA1_Final(result, &ctx);
+}
+
+/**
+ * \internal Liczy skrĂłt SHA1 z pliku.
+ *
+ * \param fd Deskryptor pliku
+ * \param result WskaĹşnik na skrĂłt
+ *
+ * \return 0 lub -1
+ */
+int gg_file_hash_sha1(int fd, uint8_t *result)
+{
+ unsigned char buf[4096];
+ SHA_CTX ctx;
+ off_t pos, len;
+ int res;
+
+ if ((pos = lseek(fd, 0, SEEK_CUR)) == (off_t) -1)
+ return -1;
+
+ if ((len = lseek(fd, 0, SEEK_END)) == (off_t) -1)
+ return -1;
+
+ if (lseek(fd, 0, SEEK_SET) == (off_t) -1)
+ return -1;
+
+ SHA1_Init(&ctx);
+
+ if (len <= 10485760) {
+ while ((res = read(fd, buf, sizeof(buf))) > 0)
+ SHA1_Update(&ctx, buf, res);
+ } else {
+ int i;
+
+ for (i = 0; i < 9; i++) {
+ int j;
+
+ if (lseek(fd, (len - 1048576) / 9 * i, SEEK_SET) == (off_t) - 1)
+ return -1;
+
+ for (j = 0; j < 1048576 / sizeof(buf); j++) {
+ if ((res = read(fd, buf, sizeof(buf))) != sizeof(buf)) {
+ res = -1;
+ break;
+ }
+
+ SHA1_Update(&ctx, buf, res);
+ }
+
+ if (res == -1)
+ break;
+ }
+ }
+
+ if (res == -1)
+ return -1;
+
+ SHA1_Final(result, &ctx);
+
+ if (lseek(fd, pos, SEEK_SET) == (off_t) -1)
+ return -1;
+
+ return 0;
+}
+
+/** \endcond */
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