mirror of
https://github.com/wangyu-/udp2raw.git
synced 2025-01-19 22:39:31 +08:00
wangyu-
GitHub
commit
687666cf05
474
lib/md5.c
474
lib/md5.c
@ -1,176 +1,312 @@
|
|||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <stdint.h>
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* this file comes from https://github.com/pod32g/MD5/blob/master/md5.c
|
* This file is adapted from PolarSSL 1.3.19 (GPL)
|
||||||
*/
|
*/
|
||||||
|
|
||||||
// Constants are the integer part of the sines of integers (in radians) * 2^32.
|
|
||||||
const uint32_t k[64] = {
|
|
||||||
0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee ,
|
|
||||||
0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501 ,
|
|
||||||
0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be ,
|
|
||||||
0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821 ,
|
|
||||||
0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa ,
|
|
||||||
0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8 ,
|
|
||||||
0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed ,
|
|
||||||
0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a ,
|
|
||||||
0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c ,
|
|
||||||
0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70 ,
|
|
||||||
0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05 ,
|
|
||||||
0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665 ,
|
|
||||||
0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039 ,
|
|
||||||
0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1 ,
|
|
||||||
0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1 ,
|
|
||||||
0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391 };
|
|
||||||
|
|
||||||
// r specifies the per-round shift amounts
|
|
||||||
const uint32_t r[] = {7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
|
|
||||||
5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
|
|
||||||
4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
|
|
||||||
6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21};
|
|
||||||
|
|
||||||
// leftrotate function definition
|
|
||||||
#define LEFTROTATE(x, c) (((x) << (c)) | ((x) >> (32 - (c))))
|
|
||||||
|
|
||||||
void to_bytes(uint32_t val, uint8_t *bytes)
|
|
||||||
{
|
|
||||||
bytes[0] = (uint8_t) val;
|
|
||||||
bytes[1] = (uint8_t) (val >> 8);
|
|
||||||
bytes[2] = (uint8_t) (val >> 16);
|
|
||||||
bytes[3] = (uint8_t) (val >> 24);
|
|
||||||
}
|
|
||||||
|
|
||||||
uint32_t to_int32(const uint8_t *bytes)
|
|
||||||
{
|
|
||||||
return (uint32_t) bytes[0]
|
|
||||||
| ((uint32_t) bytes[1] << 8)
|
|
||||||
| ((uint32_t) bytes[2] << 16)
|
|
||||||
| ((uint32_t) bytes[3] << 24);
|
|
||||||
}
|
|
||||||
|
|
||||||
void md5(const uint8_t *initial_msg, size_t initial_len, uint8_t *digest) {
|
|
||||||
|
|
||||||
// These vars will contain the hash
|
|
||||||
uint32_t h0, h1, h2, h3;
|
|
||||||
|
|
||||||
// Message (to prepare)
|
|
||||||
uint8_t *msg = NULL;
|
|
||||||
|
|
||||||
size_t new_len, offset;
|
|
||||||
uint32_t w[16];
|
|
||||||
uint32_t a, b, c, d, i, f, g, temp;
|
|
||||||
|
|
||||||
// Initialize variables - simple count in nibbles:
|
|
||||||
h0 = 0x67452301;
|
|
||||||
h1 = 0xefcdab89;
|
|
||||||
h2 = 0x98badcfe;
|
|
||||||
h3 = 0x10325476;
|
|
||||||
|
|
||||||
//Pre-processing:
|
|
||||||
//append "1" bit to message
|
|
||||||
//append "0" bits until message length in bits ≡ 448 (mod 512)
|
|
||||||
//append length mod (2^64) to message
|
|
||||||
|
|
||||||
for (new_len = initial_len + 1; new_len % (512/8) != 448/8; new_len++)
|
|
||||||
;
|
|
||||||
|
|
||||||
uint8_t buf[new_len + 8];
|
|
||||||
msg = buf;//(uint8_t*)malloc(new_len + 8);
|
|
||||||
memcpy(msg, initial_msg, initial_len);
|
|
||||||
msg[initial_len] = 0x80; // append the "1" bit; most significant bit is "first"
|
|
||||||
for (offset = initial_len + 1; offset < new_len; offset++)
|
|
||||||
msg[offset] = 0; // append "0" bits
|
|
||||||
|
|
||||||
// append the len in bits at the end of the buffer.
|
|
||||||
to_bytes(initial_len*8, msg + new_len);
|
|
||||||
// initial_len>>29 == initial_len*8>>32, but avoids overflow.
|
|
||||||
to_bytes(initial_len>>29, msg + new_len + 4);
|
|
||||||
|
|
||||||
// Process the message in successive 512-bit chunks:
|
|
||||||
//for each 512-bit chunk of message:
|
|
||||||
for(offset=0; offset<new_len; offset += (512/8)) {
|
|
||||||
|
|
||||||
// break chunk into sixteen 32-bit words w[j], 0 ≤ j ≤ 15
|
|
||||||
for (i = 0; i < 16; i++)
|
|
||||||
w[i] = to_int32(msg + offset + i*4);
|
|
||||||
|
|
||||||
// Initialize hash value for this chunk:
|
|
||||||
a = h0;
|
|
||||||
b = h1;
|
|
||||||
c = h2;
|
|
||||||
d = h3;
|
|
||||||
|
|
||||||
// Main loop:
|
|
||||||
for(i = 0; i<64; i++) {
|
|
||||||
|
|
||||||
if (i < 16) {
|
|
||||||
f = (b & c) | ((~b) & d);
|
|
||||||
g = i;
|
|
||||||
} else if (i < 32) {
|
|
||||||
f = (d & b) | ((~d) & c);
|
|
||||||
g = (5*i + 1) % 16;
|
|
||||||
} else if (i < 48) {
|
|
||||||
f = b ^ c ^ d;
|
|
||||||
g = (3*i + 5) % 16;
|
|
||||||
} else {
|
|
||||||
f = c ^ (b | (~d));
|
|
||||||
g = (7*i) % 16;
|
|
||||||
}
|
|
||||||
|
|
||||||
temp = d;
|
|
||||||
d = c;
|
|
||||||
c = b;
|
|
||||||
b = b + LEFTROTATE((a + f + k[i] + w[g]), r[i]);
|
|
||||||
a = temp;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
// Add this chunk's hash to result so far:
|
|
||||||
h0 += a;
|
|
||||||
h1 += b;
|
|
||||||
h2 += c;
|
|
||||||
h3 += d;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
// cleanup
|
|
||||||
//free(msg);
|
|
||||||
|
|
||||||
//var char digest[16] := h0 append h1 append h2 append h3 //(Output is in little-endian)
|
|
||||||
to_bytes(h0, digest);
|
|
||||||
to_bytes(h1, digest + 4);
|
|
||||||
to_bytes(h2, digest + 8);
|
|
||||||
to_bytes(h3, digest + 12);
|
|
||||||
}
|
|
||||||
/*
|
/*
|
||||||
int main(int argc, char **argv) {
|
* RFC 1321 compliant MD5 implementation
|
||||||
char *msg;
|
*
|
||||||
size_t len;
|
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
|
||||||
int i;
|
*
|
||||||
uint8_t result[16];
|
* This file is part of mbed TLS (https://tls.mbed.org)
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* 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 General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License along
|
||||||
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||||
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||||
|
*/
|
||||||
|
/*
|
||||||
|
* The MD5 algorithm was designed by Ron Rivest in 1991.
|
||||||
|
*
|
||||||
|
* http://www.ietf.org/rfc/rfc1321.txt
|
||||||
|
*/
|
||||||
|
|
||||||
if (argc < 2) {
|
#include <string.h>
|
||||||
printf("usage: %s 'string'\n", argv[0]);
|
#include <stddef.h>
|
||||||
return 1;
|
#include <stdint.h>
|
||||||
}
|
|
||||||
msg = argv[1];
|
|
||||||
|
|
||||||
len = strlen(msg);
|
typedef struct
|
||||||
|
{
|
||||||
// benchmark
|
uint32_t total[2]; /*!< number of bytes processed */
|
||||||
for (i = 0; i < 1000000; i++) {
|
uint32_t state[4]; /*!< intermediate digest state */
|
||||||
md5((uint8_t*)msg, len, result);
|
unsigned char buffer[64]; /*!< data block being processed */
|
||||||
}
|
}
|
||||||
|
md5_context;
|
||||||
// display result
|
|
||||||
for (i = 0; i < 16; i++)
|
/* Implementation that should never be optimized out by the compiler */
|
||||||
printf("%2.2x", result[i]);
|
static void polarssl_zeroize( void *v, size_t n ) {
|
||||||
puts("");
|
volatile unsigned char *p = (unsigned char *) v; while( n-- ) *p++ = 0;
|
||||||
|
}
|
||||||
return 0;
|
|
||||||
|
/*
|
||||||
|
* 32-bit integer manipulation macros (little endian)
|
||||||
|
*/
|
||||||
|
#ifndef GET_UINT32_LE
|
||||||
|
#define GET_UINT32_LE(n,b,i) \
|
||||||
|
{ \
|
||||||
|
(n) = ( (uint32_t) (b)[(i) ] ) \
|
||||||
|
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
|
||||||
|
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
|
||||||
|
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef PUT_UINT32_LE
|
||||||
|
#define PUT_UINT32_LE(n,b,i) \
|
||||||
|
{ \
|
||||||
|
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
|
||||||
|
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
|
||||||
|
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
|
||||||
|
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void md5_init( md5_context *ctx )
|
||||||
|
{
|
||||||
|
memset( ctx, 0, sizeof( md5_context ) );
|
||||||
|
}
|
||||||
|
|
||||||
|
void md5_free( md5_context *ctx )
|
||||||
|
{
|
||||||
|
if( ctx == NULL )
|
||||||
|
return;
|
||||||
|
|
||||||
|
polarssl_zeroize( ctx, sizeof( md5_context ) );
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* MD5 context setup
|
||||||
|
*/
|
||||||
|
void md5_starts( md5_context *ctx )
|
||||||
|
{
|
||||||
|
ctx->total[0] = 0;
|
||||||
|
ctx->total[1] = 0;
|
||||||
|
|
||||||
|
ctx->state[0] = 0x67452301;
|
||||||
|
ctx->state[1] = 0xEFCDAB89;
|
||||||
|
ctx->state[2] = 0x98BADCFE;
|
||||||
|
ctx->state[3] = 0x10325476;
|
||||||
|
}
|
||||||
|
|
||||||
|
void md5_process( md5_context *ctx, const unsigned char data[64] )
|
||||||
|
{
|
||||||
|
uint32_t X[16], A, B, C, D;
|
||||||
|
|
||||||
|
GET_UINT32_LE( X[ 0], data, 0 );
|
||||||
|
GET_UINT32_LE( X[ 1], data, 4 );
|
||||||
|
GET_UINT32_LE( X[ 2], data, 8 );
|
||||||
|
GET_UINT32_LE( X[ 3], data, 12 );
|
||||||
|
GET_UINT32_LE( X[ 4], data, 16 );
|
||||||
|
GET_UINT32_LE( X[ 5], data, 20 );
|
||||||
|
GET_UINT32_LE( X[ 6], data, 24 );
|
||||||
|
GET_UINT32_LE( X[ 7], data, 28 );
|
||||||
|
GET_UINT32_LE( X[ 8], data, 32 );
|
||||||
|
GET_UINT32_LE( X[ 9], data, 36 );
|
||||||
|
GET_UINT32_LE( X[10], data, 40 );
|
||||||
|
GET_UINT32_LE( X[11], data, 44 );
|
||||||
|
GET_UINT32_LE( X[12], data, 48 );
|
||||||
|
GET_UINT32_LE( X[13], data, 52 );
|
||||||
|
GET_UINT32_LE( X[14], data, 56 );
|
||||||
|
GET_UINT32_LE( X[15], data, 60 );
|
||||||
|
|
||||||
|
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
|
||||||
|
|
||||||
|
#define P(a,b,c,d,k,s,t) \
|
||||||
|
{ \
|
||||||
|
a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
|
||||||
|
}
|
||||||
|
|
||||||
|
A = ctx->state[0];
|
||||||
|
B = ctx->state[1];
|
||||||
|
C = ctx->state[2];
|
||||||
|
D = ctx->state[3];
|
||||||
|
|
||||||
|
#define F(x,y,z) (z ^ (x & (y ^ z)))
|
||||||
|
|
||||||
|
P( A, B, C, D, 0, 7, 0xD76AA478 );
|
||||||
|
P( D, A, B, C, 1, 12, 0xE8C7B756 );
|
||||||
|
P( C, D, A, B, 2, 17, 0x242070DB );
|
||||||
|
P( B, C, D, A, 3, 22, 0xC1BDCEEE );
|
||||||
|
P( A, B, C, D, 4, 7, 0xF57C0FAF );
|
||||||
|
P( D, A, B, C, 5, 12, 0x4787C62A );
|
||||||
|
P( C, D, A, B, 6, 17, 0xA8304613 );
|
||||||
|
P( B, C, D, A, 7, 22, 0xFD469501 );
|
||||||
|
P( A, B, C, D, 8, 7, 0x698098D8 );
|
||||||
|
P( D, A, B, C, 9, 12, 0x8B44F7AF );
|
||||||
|
P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
|
||||||
|
P( B, C, D, A, 11, 22, 0x895CD7BE );
|
||||||
|
P( A, B, C, D, 12, 7, 0x6B901122 );
|
||||||
|
P( D, A, B, C, 13, 12, 0xFD987193 );
|
||||||
|
P( C, D, A, B, 14, 17, 0xA679438E );
|
||||||
|
P( B, C, D, A, 15, 22, 0x49B40821 );
|
||||||
|
|
||||||
|
#undef F
|
||||||
|
|
||||||
|
#define F(x,y,z) (y ^ (z & (x ^ y)))
|
||||||
|
|
||||||
|
P( A, B, C, D, 1, 5, 0xF61E2562 );
|
||||||
|
P( D, A, B, C, 6, 9, 0xC040B340 );
|
||||||
|
P( C, D, A, B, 11, 14, 0x265E5A51 );
|
||||||
|
P( B, C, D, A, 0, 20, 0xE9B6C7AA );
|
||||||
|
P( A, B, C, D, 5, 5, 0xD62F105D );
|
||||||
|
P( D, A, B, C, 10, 9, 0x02441453 );
|
||||||
|
P( C, D, A, B, 15, 14, 0xD8A1E681 );
|
||||||
|
P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
|
||||||
|
P( A, B, C, D, 9, 5, 0x21E1CDE6 );
|
||||||
|
P( D, A, B, C, 14, 9, 0xC33707D6 );
|
||||||
|
P( C, D, A, B, 3, 14, 0xF4D50D87 );
|
||||||
|
P( B, C, D, A, 8, 20, 0x455A14ED );
|
||||||
|
P( A, B, C, D, 13, 5, 0xA9E3E905 );
|
||||||
|
P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
|
||||||
|
P( C, D, A, B, 7, 14, 0x676F02D9 );
|
||||||
|
P( B, C, D, A, 12, 20, 0x8D2A4C8A );
|
||||||
|
|
||||||
|
#undef F
|
||||||
|
|
||||||
|
#define F(x,y,z) (x ^ y ^ z)
|
||||||
|
|
||||||
|
P( A, B, C, D, 5, 4, 0xFFFA3942 );
|
||||||
|
P( D, A, B, C, 8, 11, 0x8771F681 );
|
||||||
|
P( C, D, A, B, 11, 16, 0x6D9D6122 );
|
||||||
|
P( B, C, D, A, 14, 23, 0xFDE5380C );
|
||||||
|
P( A, B, C, D, 1, 4, 0xA4BEEA44 );
|
||||||
|
P( D, A, B, C, 4, 11, 0x4BDECFA9 );
|
||||||
|
P( C, D, A, B, 7, 16, 0xF6BB4B60 );
|
||||||
|
P( B, C, D, A, 10, 23, 0xBEBFBC70 );
|
||||||
|
P( A, B, C, D, 13, 4, 0x289B7EC6 );
|
||||||
|
P( D, A, B, C, 0, 11, 0xEAA127FA );
|
||||||
|
P( C, D, A, B, 3, 16, 0xD4EF3085 );
|
||||||
|
P( B, C, D, A, 6, 23, 0x04881D05 );
|
||||||
|
P( A, B, C, D, 9, 4, 0xD9D4D039 );
|
||||||
|
P( D, A, B, C, 12, 11, 0xE6DB99E5 );
|
||||||
|
P( C, D, A, B, 15, 16, 0x1FA27CF8 );
|
||||||
|
P( B, C, D, A, 2, 23, 0xC4AC5665 );
|
||||||
|
|
||||||
|
#undef F
|
||||||
|
|
||||||
|
#define F(x,y,z) (y ^ (x | ~z))
|
||||||
|
|
||||||
|
P( A, B, C, D, 0, 6, 0xF4292244 );
|
||||||
|
P( D, A, B, C, 7, 10, 0x432AFF97 );
|
||||||
|
P( C, D, A, B, 14, 15, 0xAB9423A7 );
|
||||||
|
P( B, C, D, A, 5, 21, 0xFC93A039 );
|
||||||
|
P( A, B, C, D, 12, 6, 0x655B59C3 );
|
||||||
|
P( D, A, B, C, 3, 10, 0x8F0CCC92 );
|
||||||
|
P( C, D, A, B, 10, 15, 0xFFEFF47D );
|
||||||
|
P( B, C, D, A, 1, 21, 0x85845DD1 );
|
||||||
|
P( A, B, C, D, 8, 6, 0x6FA87E4F );
|
||||||
|
P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
|
||||||
|
P( C, D, A, B, 6, 15, 0xA3014314 );
|
||||||
|
P( B, C, D, A, 13, 21, 0x4E0811A1 );
|
||||||
|
P( A, B, C, D, 4, 6, 0xF7537E82 );
|
||||||
|
P( D, A, B, C, 11, 10, 0xBD3AF235 );
|
||||||
|
P( C, D, A, B, 2, 15, 0x2AD7D2BB );
|
||||||
|
P( B, C, D, A, 9, 21, 0xEB86D391 );
|
||||||
|
|
||||||
|
#undef F
|
||||||
|
|
||||||
|
ctx->state[0] += A;
|
||||||
|
ctx->state[1] += B;
|
||||||
|
ctx->state[2] += C;
|
||||||
|
ctx->state[3] += D;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* MD5 process buffer
|
||||||
|
*/
|
||||||
|
void md5_update( md5_context *ctx, const unsigned char *input, size_t ilen )
|
||||||
|
{
|
||||||
|
size_t fill;
|
||||||
|
uint32_t left;
|
||||||
|
|
||||||
|
if( ilen == 0 )
|
||||||
|
return;
|
||||||
|
|
||||||
|
left = ctx->total[0] & 0x3F;
|
||||||
|
fill = 64 - left;
|
||||||
|
|
||||||
|
ctx->total[0] += (uint32_t) ilen;
|
||||||
|
ctx->total[0] &= 0xFFFFFFFF;
|
||||||
|
|
||||||
|
if( ctx->total[0] < (uint32_t) ilen )
|
||||||
|
ctx->total[1]++;
|
||||||
|
|
||||||
|
if( left && ilen >= fill )
|
||||||
|
{
|
||||||
|
memcpy( (void *) (ctx->buffer + left), input, fill );
|
||||||
|
md5_process( ctx, ctx->buffer );
|
||||||
|
input += fill;
|
||||||
|
ilen -= fill;
|
||||||
|
left = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
while( ilen >= 64 )
|
||||||
|
{
|
||||||
|
md5_process( ctx, input );
|
||||||
|
input += 64;
|
||||||
|
ilen -= 64;
|
||||||
|
}
|
||||||
|
|
||||||
|
if( ilen > 0 )
|
||||||
|
{
|
||||||
|
memcpy( (void *) (ctx->buffer + left), input, ilen );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static const unsigned char md5_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
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* MD5 final digest
|
||||||
|
*/
|
||||||
|
void md5_finish( md5_context *ctx, unsigned char output[16] )
|
||||||
|
{
|
||||||
|
uint32_t last, padn;
|
||||||
|
uint32_t high, low;
|
||||||
|
unsigned char msglen[8];
|
||||||
|
|
||||||
|
high = ( ctx->total[0] >> 29 )
|
||||||
|
| ( ctx->total[1] << 3 );
|
||||||
|
low = ( ctx->total[0] << 3 );
|
||||||
|
|
||||||
|
PUT_UINT32_LE( low, msglen, 0 );
|
||||||
|
PUT_UINT32_LE( high, msglen, 4 );
|
||||||
|
|
||||||
|
last = ctx->total[0] & 0x3F;
|
||||||
|
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
|
||||||
|
|
||||||
|
md5_update( ctx, md5_padding, padn );
|
||||||
|
md5_update( ctx, msglen, 8 );
|
||||||
|
|
||||||
|
PUT_UINT32_LE( ctx->state[0], output, 0 );
|
||||||
|
PUT_UINT32_LE( ctx->state[1], output, 4 );
|
||||||
|
PUT_UINT32_LE( ctx->state[2], output, 8 );
|
||||||
|
PUT_UINT32_LE( ctx->state[3], output, 12 );
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* output = MD5( input buffer )
|
||||||
|
*/
|
||||||
|
void md5( const unsigned char *input, size_t ilen, unsigned char output[16] )
|
||||||
|
{
|
||||||
|
md5_context ctx;
|
||||||
|
|
||||||
|
md5_init( &ctx );
|
||||||
|
md5_starts( &ctx );
|
||||||
|
md5_update( &ctx, input, ilen );
|
||||||
|
md5_finish( &ctx, output );
|
||||||
|
md5_free( &ctx );
|
||||||
}
|
}
|
||||||
*/
|
|
||||||
|
|||||||
@ -1,9 +1,7 @@
|
|||||||
#ifndef _MD5_H_
|
#ifndef _MD5_H_
|
||||||
#define _MD5_H_
|
#define _MD5_H_
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
|
#include <stddef.h>
|
||||||
|
|
||||||
void md5(const uint8_t *initial_msg, size_t initial_len, uint8_t *digest);
|
void md5(const uint8_t *initial_msg, size_t initial_len, uint8_t *digest);
|
||||||
|
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user