diff options
Diffstat (limited to 'ext/hash/hash_snefru.c')
-rw-r--r-- | ext/hash/hash_snefru.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/ext/hash/hash_snefru.c b/ext/hash/hash_snefru.c deleted file mode 100644 index 327da849bc..0000000000 --- a/ext/hash/hash_snefru.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP Version 5 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997-2006 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 3.01 of the PHP license, | - | that is bundled with this package in the file LICENSE, and is | - | available through the world-wide-web at the following url: | - | http://www.php.net/license/3_01.txt | - | If you did not receive a copy of the PHP license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@php.net so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Authors: Michael Wallner <mike@php.net> | - | Sara Golemon <pollita@php.net> | - +----------------------------------------------------------------------+ -*/ - -/* $Id$ */ - -#include "php_hash.h" -#include "php_hash_snefru.h" -#include "php_hash_snefru_tables.h" - -#define round(L, C, N, SB) \ - SBE = SB[C & 0xff]; \ - L ^= SBE; \ - N ^= SBE - -#ifndef DBG_SNEFRU -#define DBG_SNEFRU 0 -#endif - -#if DBG_SNEFRU -void ph(php_hash_uint32 h[16]) -{ - int i; - for (i = 0; i < 16; i++) - printf ("%08lx", h[i]); printf("\n"); -} -#endif - -static inline void Snefru(php_hash_uint32 input[16]) -{ - static int shifts[4] = {16, 8, 16, 24}; - int b, index, rshift, lshift; - const php_hash_uint32 *t0,*t1; - php_hash_uint32 SBE,B00,B01,B02,B03,B04,B05,B06,B07,B08,B09,B10,B11,B12,B13,B14,B15; - - B00 = input[0]; - B01 = input[1]; - B02 = input[2]; - B03 = input[3]; - B04 = input[4]; - B05 = input[5]; - B06 = input[6]; - B07 = input[7]; - B08 = input[8]; - B09 = input[9]; - B10 = input[10]; - B11 = input[11]; - B12 = input[12]; - B13 = input[13]; - B14 = input[14]; - B15 = input[15]; - - for (index = 0; index < 8; index++) { - t0 = tables[2*index+0]; - t1 = tables[2*index+1]; - for (b = 0; b < 4; b++) { - round(B15, B00, B01, t0); - round(B00, B01, B02, t0); - round(B01, B02, B03, t1); - round(B02, B03, B04, t1); - round(B03, B04, B05, t0); - round(B04, B05, B06, t0); - round(B05, B06, B07, t1); - round(B06, B07, B08, t1); - round(B07, B08, B09, t0); - round(B08, B09, B10, t0); - round(B09, B10, B11, t1); - round(B10, B11, B12, t1); - round(B11, B12, B13, t0); - round(B12, B13, B14, t0); - round(B13, B14, B15, t1); - round(B14, B15, B00, t1); - - rshift = shifts[b]; - lshift = 32-rshift; - - B00 = (B00 >> rshift) | (B00 << lshift); - B01 = (B01 >> rshift) | (B01 << lshift); - B02 = (B02 >> rshift) | (B02 << lshift); - B03 = (B03 >> rshift) | (B03 << lshift); - B04 = (B04 >> rshift) | (B04 << lshift); - B05 = (B05 >> rshift) | (B05 << lshift); - B06 = (B06 >> rshift) | (B06 << lshift); - B07 = (B07 >> rshift) | (B07 << lshift); - B08 = (B08 >> rshift) | (B08 << lshift); - B09 = (B09 >> rshift) | (B09 << lshift); - B10 = (B10 >> rshift) | (B10 << lshift); - B11 = (B11 >> rshift) | (B11 << lshift); - B12 = (B12 >> rshift) | (B12 << lshift); - B13 = (B13 >> rshift) | (B13 << lshift); - B14 = (B14 >> rshift) | (B14 << lshift); - B15 = (B15 >> rshift) | (B15 << lshift); - } - } - input[0] ^= B15; - input[1] ^= B14; - input[2] ^= B13; - input[3] ^= B12; - input[4] ^= B11; - input[5] ^= B10; - input[6] ^= B09; - input[7] ^= B08; -#if DBG_SNEFRU - ph(input); -#endif -} - -static inline void SnefruTransform(PHP_SNEFRU_CTX *context, const unsigned char input[32]) -{ - int i, j; - - for (i = 0, j = 0; i < 32; i += 4, ++j) { - context->state[8+j] = ((input[i] & 0xff) << 24) | ((input[i+1] & 0xff) << 16) | - ((input[i+2] & 0xff) << 8) | (input[i+3] & 0xff); - } - Snefru(context->state); - memset(&context->state[8], 0, sizeof(php_hash_uint32) * 8); -} - -PHP_HASH_API void PHP_SNEFRUInit(PHP_SNEFRU_CTX *context) -{ - memset(context, 0, sizeof(*context)); -} - -static const php_hash_uint32 MAX32 = 0xffffffffLU; - -PHP_HASH_API void PHP_SNEFRUUpdate(PHP_SNEFRU_CTX *context, const unsigned char *input, size_t len) -{ - if ((MAX32 - context->count[1]) < (len * 8)) { - context->count[0]++; - context->count[1] = MAX32 - context->count[1]; - context->count[1] = (len * 8) - context->count[1]; - } else { - context->count[1] += len * 8; - } - - if (context->length + len < 32) { - memcpy(&context->buffer[context->length], input, len); - context->length += len; - } else { - size_t i = 0, r = (context->length + len) % 32; - - if (context->length) { - i = 32 - context->length; - memcpy(&context->buffer[context->length], input, i); - SnefruTransform(context, context->buffer); - } - - for (; i + 32 <= len; i += 32) { - SnefruTransform(context, input + i); - } - - memcpy(context->buffer, input + i, r); - memset(&context->buffer[r], 0, 32 - r); - context->length = r; - } -} - -PHP_HASH_API void PHP_SNEFRUFinal(unsigned char digest[32], PHP_SNEFRU_CTX *context) -{ - php_hash_uint32 i, j; - - if (context->length) { - SnefruTransform(context, context->buffer); - } - - context->state[14] = context->count[0]; - context->state[15] = context->count[1]; - Snefru(context->state); - - for (i = 0, j = 0; j < 32; i++, j += 4) { - digest[j] = (unsigned char) ((context->state[i] >> 24) & 0xff); - digest[j + 1] = (unsigned char) ((context->state[i] >> 16) & 0xff); - digest[j + 2] = (unsigned char) ((context->state[i] >> 8) & 0xff); - digest[j + 3] = (unsigned char) (context->state[i] & 0xff); - } - - memset(context, 0, sizeof(*context)); -} - -php_hash_ops php_hash_snefru_ops = { - (php_hash_init_func_t) PHP_SNEFRUInit, - (php_hash_update_func_t) PHP_SNEFRUUpdate, - (php_hash_final_func_t) PHP_SNEFRUFinal, - 32, - 32, - sizeof(PHP_SNEFRU_CTX) -}; - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim600: sw=4 ts=4 fdm=marker - * vim<600: sw=4 ts=4 - */ |