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archived-php-src/ext/hash/hash_ripemd.c
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Anatol Belski 110b4e9094 hash: Support custom algo parameters 
The concrete need on this change is to support passing an initial seed
to the murmur hash. Passing a custom seed is important in terms of
randomizing the hash function.

The suggested implementation adds a HashTable parameter to all the
init callbacks. Further on, an array with custom arguments is accepted
from `hash` or `hash_init` from the user land. Currently several things
like `hash_hkdf` are not touched, as they don't need passing custom
args.

Some convenience macros have been added to the SHA/MD families of
functions, so the consuming code doesn't have to be changed widely.

Another way to implement this is to add another type of the init that
would accept a HT with arguments. However, that would still require
touching all the context structs in all the algos. That would also
increase the size of those structs. As an init function is called just
once, the way of modifying the existing init callback has been seen
as more preferrable.

Closes GH-6400.

Signed-off-by: Anatol Belski <ab@php.net>
Co-Developed-by: Nikita Popov <nikita.ppv@googlemail.com>
Signed-off-by: Nikita Popov <nikita.ppv@googlemail.com>
Acked-by: Michael Wallner <mike@php.net>
Reviewed-by: Máté Kocsis <kocsismate@woohoolabs.com>
Reviewed-by: Eddie Kohler <ekohler@gmail.com>
2020-12-13 14:14:07 +01:00

783 lines
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/*
+----------------------------------------------------------------------+
| Copyright (c) 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. |
+----------------------------------------------------------------------+
| Author: Sara Golemon <pollita@php.net> |
+----------------------------------------------------------------------+
*/
/* Heavily borrowed from md5.c & sha1.c of PHP archival fame
Note that ripemd laughs in the face of logic and uses
little endian byte ordering */
#include "php_hash.h"
#include "php_hash_ripemd.h"
const php_hash_ops php_hash_ripemd128_ops = {
"ripemd128",
(php_hash_init_func_t) PHP_RIPEMD128Init,
(php_hash_update_func_t) PHP_RIPEMD128Update,
(php_hash_final_func_t) PHP_RIPEMD128Final,
php_hash_copy,
php_hash_serialize,
php_hash_unserialize,
PHP_RIPEMD128_SPEC,
16,
64,
sizeof(PHP_RIPEMD128_CTX),
1
};
const php_hash_ops php_hash_ripemd160_ops = {
"ripemd160",
(php_hash_init_func_t) PHP_RIPEMD160Init,
(php_hash_update_func_t) PHP_RIPEMD160Update,
(php_hash_final_func_t) PHP_RIPEMD160Final,
php_hash_copy,
php_hash_serialize,
php_hash_unserialize,
PHP_RIPEMD160_SPEC,
20,
64,
sizeof(PHP_RIPEMD160_CTX),
1
};
const php_hash_ops php_hash_ripemd256_ops = {
"ripemd256",
(php_hash_init_func_t) PHP_RIPEMD256Init,
(php_hash_update_func_t) PHP_RIPEMD256Update,
(php_hash_final_func_t) PHP_RIPEMD256Final,
php_hash_copy,
php_hash_serialize,
php_hash_unserialize,
PHP_RIPEMD256_SPEC,
32,
64,
sizeof(PHP_RIPEMD256_CTX),
1
};
const php_hash_ops php_hash_ripemd320_ops = {
"ripemd320",
(php_hash_init_func_t) PHP_RIPEMD320Init,
(php_hash_update_func_t) PHP_RIPEMD320Update,
(php_hash_final_func_t) PHP_RIPEMD320Final,
php_hash_copy,
php_hash_serialize,
php_hash_unserialize,
PHP_RIPEMD320_SPEC,
40,
64,
sizeof(PHP_RIPEMD320_CTX),
1
};
/* {{{ PHP_RIPEMD128Init
* ripemd128 initialization. Begins a ripemd128 operation, writing a new context.
*/
PHP_HASH_API void PHP_RIPEMD128Init(PHP_RIPEMD128_CTX * context, ZEND_ATTRIBUTE_UNUSED HashTable *args)
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
*/
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
}
/* }}} */
/* {{{ PHP_RIPEMD256Init
* ripemd256 initialization. Begins a ripemd256 operation, writing a new context.
*/
PHP_HASH_API void PHP_RIPEMD256Init(PHP_RIPEMD256_CTX * context, ZEND_ATTRIBUTE_UNUSED HashTable *args)
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
*/
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0x76543210;
context->state[5] = 0xFEDCBA98;
context->state[6] = 0x89ABCDEF;
context->state[7] = 0x01234567;
}
/* }}} */
/* {{{ PHP_RIPEMD160Init
* ripemd160 initialization. Begins a ripemd160 operation, writing a new context.
*/
PHP_HASH_API void PHP_RIPEMD160Init(PHP_RIPEMD160_CTX * context, ZEND_ATTRIBUTE_UNUSED HashTable *args)
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
*/
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0xC3D2E1F0;
}
/* }}} */
/* {{{ PHP_RIPEMD320Init
* ripemd320 initialization. Begins a ripemd320 operation, writing a new context.
*/
PHP_HASH_API void PHP_RIPEMD320Init(PHP_RIPEMD320_CTX * context, ZEND_ATTRIBUTE_UNUSED HashTable *args)
{
context->count[0] = context->count[1] = 0;
/* Load magic initialization constants.
*/
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0xC3D2E1F0;
context->state[5] = 0x76543210;
context->state[6] = 0xFEDCBA98;
context->state[7] = 0x89ABCDEF;
context->state[8] = 0x01234567;
context->state[9] = 0x3C2D1E0F;
}
/* }}} */
/* Basic ripemd function */
#define F0(x,y,z) ((x) ^ (y) ^ (z))
#define F1(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
#define F2(x,y,z) (((x) | (~(y))) ^ (z))
#define F3(x,y,z) (((x) & (z)) | ((y) & (~(z))))
#define F4(x,y,z) ((x) ^ ((y) | (~(z))))
static const uint32_t K_values[5] = { 0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E }; /* 128, 256, 160, 320 */
static const uint32_t KK_values[4] = { 0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x00000000 }; /* 128 & 256 */
static const uint32_t KK160_values[5] = { 0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000 }; /* 160 & 320 */
#define K(n) K_values[ (n) >> 4]
#define KK(n) KK_values[(n) >> 4]
#define KK160(n) KK160_values[(n) >> 4]
static const unsigned char R[80] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 };
static const unsigned char RR[80] = {
5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 };
static const unsigned char S[80] = {
11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 };
static const unsigned char SS[80] = {
8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 };
#define ROLS(j, x) (((x) << S[j]) | ((x) >> (32 - S[j])))
#define ROLSS(j, x) (((x) << SS[j]) | ((x) >> (32 - SS[j])))
#define ROL(n, x) (((x) << n) | ((x) >> (32 - n)))
/* {{{ RIPEMDDecode
Decodes input (unsigned char) into output (uint32_t). Assumes len is
a multiple of 4.
*/
static void RIPEMDDecode(uint32_t *output, const unsigned char *input, unsigned int len)
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] = ((uint32_t) input[j + 0]) | (((uint32_t) input[j + 1]) << 8) |
(((uint32_t) input[j + 2]) << 16) | (((uint32_t) input[j + 3]) << 24);
}
/* }}} */
/* {{{ RIPEMD128Transform
* ripemd128 basic transformation. Transforms state based on block.
*/
static void RIPEMD128Transform(uint32_t state[4], const unsigned char block[64])
{
uint32_t a = state[0], b = state[1], c = state[2], d = state[3];
uint32_t aa = state[0], bb = state[1], cc = state[2], dd = state[3];
uint32_t tmp, x[16];
int j;
RIPEMDDecode(x, block, 64);
for(j = 0; j < 16; j++) {
tmp = ROLS( j, a + F0(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F3(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
for(j = 16; j < 32; j++) {
tmp = ROLS( j, a + F1(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F2(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
for(j = 32; j < 48; j++) {
tmp = ROLS( j, a + F2(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F1(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
for(j = 48; j < 64; j++) {
tmp = ROLS( j, a + F3(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F0(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
tmp = state[1] + c + dd;
state[1] = state[2] + d + aa;
state[2] = state[3] + a + bb;
state[3] = state[0] + b + cc;
state[0] = tmp;
tmp = 0;
ZEND_SECURE_ZERO(x, sizeof(x));
}
/* }}} */
/* {{{ PHP_RIPEMD128Update
ripemd128 block update operation. Continues a ripemd128 message-digest
operation, processing another message block, and updating the
context.
*/
PHP_HASH_API void PHP_RIPEMD128Update(PHP_RIPEMD128_CTX * context, const unsigned char *input, size_t inputLen)
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
if ((context->count[0] += ((uint32_t) inputLen << 3)) < ((uint32_t) inputLen << 3)) {
context->count[1]++;
}
context->count[1] += ((uint32_t) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
RIPEMD128Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
RIPEMD128Transform(context->state, &input[i]);
}
index = 0;
} else {
i = 0;
}
/* Buffer remaining input */
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
}
/* }}} */
/* {{{ RIPEMD256Transform
* ripemd256 basic transformation. Transforms state based on block.
*/
static void RIPEMD256Transform(uint32_t state[8], const unsigned char block[64])
{
uint32_t a = state[0], b = state[1], c = state[2], d = state[3];
uint32_t aa = state[4], bb = state[5], cc = state[6], dd = state[7];
uint32_t tmp, x[16];
int j;
RIPEMDDecode(x, block, 64);
for(j = 0; j < 16; j++) {
tmp = ROLS( j, a + F0(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F3(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
tmp = a; a = aa; aa = tmp;
for(j = 16; j < 32; j++) {
tmp = ROLS( j, a + F1(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F2(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
tmp = b; b = bb; bb = tmp;
for(j = 32; j < 48; j++) {
tmp = ROLS( j, a + F2(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F1(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
tmp = c; c = cc; cc = tmp;
for(j = 48; j < 64; j++) {
tmp = ROLS( j, a + F3(b, c, d) + x[R[j]] + K(j));
a = d; d = c; c = b; b = tmp;
tmp = ROLSS(j, aa + F0(bb, cc, dd) + x[RR[j]] + KK(j));
aa = dd; dd = cc; cc = bb; bb = tmp;
}
tmp = d; d = dd; dd = tmp;
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += aa;
state[5] += bb;
state[6] += cc;
state[7] += dd;
tmp = 0;
ZEND_SECURE_ZERO(x, sizeof(x));
}
/* }}} */
/* {{{ PHP_RIPEMD256Update
ripemd256 block update operation. Continues a ripemd256 message-digest
operation, processing another message block, and updating the
context.
*/
PHP_HASH_API void PHP_RIPEMD256Update(PHP_RIPEMD256_CTX * context, const unsigned char *input, size_t inputLen)
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
if ((context->count[0] += ((uint32_t) inputLen << 3)) < ((uint32_t) inputLen << 3)) {
context->count[1]++;
}
context->count[1] += ((uint32_t) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
RIPEMD256Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
RIPEMD256Transform(context->state, &input[i]);
}
index = 0;
} else {
i = 0;
}
/* Buffer remaining input */
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
}
/* }}} */
/* {{{ RIPEMD160Transform
* ripemd160 basic transformation. Transforms state based on block.
*/
static void RIPEMD160Transform(uint32_t state[5], const unsigned char block[64])
{
uint32_t a = state[0], b = state[1], c = state[2], d = state[3], e = state[4];
uint32_t aa = state[0], bb = state[1], cc = state[2], dd = state[3], ee = state[4];
uint32_t tmp, x[16];
int j;
RIPEMDDecode(x, block, 64);
for(j = 0; j < 16; j++) {
tmp = ROLS( j, a + F0(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F4(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
for(j = 16; j < 32; j++) {
tmp = ROLS( j, a + F1(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F3(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
for(j = 32; j < 48; j++) {
tmp = ROLS( j, a + F2(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F2(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
for(j = 48; j < 64; j++) {
tmp = ROLS( j, a + F3(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F1(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
for(j = 64; j < 80; j++) {
tmp = ROLS( j, a + F4(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F0(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = state[1] + c + dd;
state[1] = state[2] + d + ee;
state[2] = state[3] + e + aa;
state[3] = state[4] + a + bb;
state[4] = state[0] + b + cc;
state[0] = tmp;
tmp = 0;
ZEND_SECURE_ZERO(x, sizeof(x));
}
/* }}} */
/* {{{ PHP_RIPEMD160Update
ripemd160 block update operation. Continues a ripemd160 message-digest
operation, processing another message block, and updating the
context.
*/
PHP_HASH_API void PHP_RIPEMD160Update(PHP_RIPEMD160_CTX * context, const unsigned char *input, size_t inputLen)
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
if ((context->count[0] += ((uint32_t) inputLen << 3)) < ((uint32_t) inputLen << 3)) {
context->count[1]++;
}
context->count[1] += ((uint32_t) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
RIPEMD160Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
RIPEMD160Transform(context->state, &input[i]);
}
index = 0;
} else {
i = 0;
}
/* Buffer remaining input */
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
}
/* }}} */
/* {{{ RIPEMD320Transform
* ripemd320 basic transformation. Transforms state based on block.
*/
static void RIPEMD320Transform(uint32_t state[10], const unsigned char block[64])
{
uint32_t a = state[0], b = state[1], c = state[2], d = state[3], e = state[4];
uint32_t aa = state[5], bb = state[6], cc = state[7], dd = state[8], ee = state[9];
uint32_t tmp, x[16];
int j;
RIPEMDDecode(x, block, 64);
for(j = 0; j < 16; j++) {
tmp = ROLS( j, a + F0(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F4(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = b; b = bb; bb = tmp;
for(j = 16; j < 32; j++) {
tmp = ROLS( j, a + F1(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F3(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = d; d = dd; dd = tmp;
for(j = 32; j < 48; j++) {
tmp = ROLS( j, a + F2(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F2(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = a; a = aa; aa = tmp;
for(j = 48; j < 64; j++) {
tmp = ROLS( j, a + F3(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F1(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = c; c = cc; cc = tmp;
for(j = 64; j < 80; j++) {
tmp = ROLS( j, a + F4(b, c, d) + x[R[j]] + K(j)) + e;
a = e; e = d; d = ROL(10, c); c = b; b = tmp;
tmp = ROLSS(j, aa + F0(bb, cc, dd) + x[RR[j]] + KK160(j)) + ee;
aa = ee; ee = dd; dd = ROL(10, cc); cc = bb; bb = tmp;
}
tmp = e; e = ee; ee = tmp;
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += e;
state[5] += aa;
state[6] += bb;
state[7] += cc;
state[8] += dd;
state[9] += ee;
tmp = 0;
ZEND_SECURE_ZERO(x, sizeof(x));
}
/* }}} */
/* {{{ PHP_RIPEMD320Update
ripemd320 block update operation. Continues a ripemd320 message-digest
operation, processing another message block, and updating the
context.
*/
PHP_HASH_API void PHP_RIPEMD320Update(PHP_RIPEMD320_CTX * context, const unsigned char *input, size_t inputLen)
{
unsigned int i, index, partLen;
/* Compute number of bytes mod 64 */
index = (unsigned int) ((context->count[0] >> 3) & 0x3F);
/* Update number of bits */
if ((context->count[0] += ((uint32_t) inputLen << 3)) < ((uint32_t) inputLen << 3)) {
context->count[1]++;
}
context->count[1] += ((uint32_t) inputLen >> 29);
partLen = 64 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) input, partLen);
RIPEMD320Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
RIPEMD320Transform(context->state, &input[i]);
}
index = 0;
} else {
i = 0;
}
/* Buffer remaining input */
memcpy((unsigned char*) & context->buffer[index], (unsigned char*) & input[i], inputLen - i);
}
/* }}} */
static const unsigned char PADDING[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/* {{{ RIPEMDEncode
Encodes input (uint32_t) into output (unsigned char). Assumes len is
a multiple of 4.
*/
static void RIPEMDEncode(unsigned char *output, uint32_t *input, unsigned int len)
{
unsigned int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j + 3] = (unsigned char) ((input[i] >> 24) & 0xff);
output[j + 2] = (unsigned char) ((input[i] >> 16) & 0xff);
output[j + 1] = (unsigned char) ((input[i] >> 8) & 0xff);
output[j + 0] = (unsigned char) (input[i] & 0xff);
}
}
/* }}} */
/* {{{ PHP_RIPEMD128Final
ripemd128 finalization. Ends a ripemd128 message-digest operation, writing the
the message digest and zeroizing the context.
*/
PHP_HASH_API void PHP_RIPEMD128Final(unsigned char digest[16], PHP_RIPEMD128_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
/* Save number of bits */
bits[0] = (unsigned char) (context->count[0] & 0xFF);
bits[1] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
bits[2] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
bits[3] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
bits[4] = (unsigned char) (context->count[1] & 0xFF);
bits[5] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
bits[6] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
bits[7] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
/* Pad out to 56 mod 64.
*/
index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
PHP_RIPEMD128Update(context, PADDING, padLen);
/* Append length (before padding) */
PHP_RIPEMD128Update(context, bits, 8);
/* Store state in digest */
RIPEMDEncode(digest, context->state, 16);
/* Zeroize sensitive information.
*/
ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
}
/* }}} */
/* {{{ PHP_RIPEMD256Final
ripemd256 finalization. Ends a ripemd256 message-digest operation, writing the
the message digest and zeroizing the context.
*/
PHP_HASH_API void PHP_RIPEMD256Final(unsigned char digest[32], PHP_RIPEMD256_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
/* Save number of bits */
bits[0] = (unsigned char) (context->count[0] & 0xFF);
bits[1] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
bits[2] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
bits[3] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
bits[4] = (unsigned char) (context->count[1] & 0xFF);
bits[5] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
bits[6] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
bits[7] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
/* Pad out to 56 mod 64.
*/
index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
PHP_RIPEMD256Update(context, PADDING, padLen);
/* Append length (before padding) */
PHP_RIPEMD256Update(context, bits, 8);
/* Store state in digest */
RIPEMDEncode(digest, context->state, 32);
/* Zeroize sensitive information.
*/
ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
}
/* }}} */
/* {{{ PHP_RIPEMD160Final
ripemd160 finalization. Ends a ripemd160 message-digest operation, writing the
the message digest and zeroizing the context.
*/
PHP_HASH_API void PHP_RIPEMD160Final(unsigned char digest[20], PHP_RIPEMD160_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
/* Save number of bits */
bits[0] = (unsigned char) (context->count[0] & 0xFF);
bits[1] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
bits[2] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
bits[3] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
bits[4] = (unsigned char) (context->count[1] & 0xFF);
bits[5] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
bits[6] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
bits[7] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
/* Pad out to 56 mod 64.
*/
index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
PHP_RIPEMD160Update(context, PADDING, padLen);
/* Append length (before padding) */
PHP_RIPEMD160Update(context, bits, 8);
/* Store state in digest */
RIPEMDEncode(digest, context->state, 20);
/* Zeroize sensitive information.
*/
ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
}
/* }}} */
/* {{{ PHP_RIPEMD320Final
ripemd320 finalization. Ends a ripemd320 message-digest operation, writing the
the message digest and zeroizing the context.
*/
PHP_HASH_API void PHP_RIPEMD320Final(unsigned char digest[40], PHP_RIPEMD320_CTX * context)
{
unsigned char bits[8];
unsigned int index, padLen;
/* Save number of bits */
bits[0] = (unsigned char) (context->count[0] & 0xFF);
bits[1] = (unsigned char) ((context->count[0] >> 8) & 0xFF);
bits[2] = (unsigned char) ((context->count[0] >> 16) & 0xFF);
bits[3] = (unsigned char) ((context->count[0] >> 24) & 0xFF);
bits[4] = (unsigned char) (context->count[1] & 0xFF);
bits[5] = (unsigned char) ((context->count[1] >> 8) & 0xFF);
bits[6] = (unsigned char) ((context->count[1] >> 16) & 0xFF);
bits[7] = (unsigned char) ((context->count[1] >> 24) & 0xFF);
/* Pad out to 56 mod 64.
*/
index = (unsigned int) ((context->count[0] >> 3) & 0x3f);
padLen = (index < 56) ? (56 - index) : (120 - index);
PHP_RIPEMD320Update(context, PADDING, padLen);
/* Append length (before padding) */
PHP_RIPEMD320Update(context, bits, 8);
/* Store state in digest */
RIPEMDEncode(digest, context->state, 40);
/* Zeroize sensitive information.
*/
ZEND_SECURE_ZERO((unsigned char*) context, sizeof(*context));
}
/* }}} */
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