/* | |
* RFC 1321 compliant MD5 implementation | |
* | |
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved | |
* SPDX-License-Identifier: Apache-2.0 | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); you may | |
* not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | |
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
* | |
* This file is part of mbed TLS (https://tls.mbed.org) | |
*/ | |
/* | |
* The MD5 algorithm was designed by Ron Rivest in 1991. | |
* | |
* http://www.ietf.org/rfc/rfc1321.txt | |
*/ | |
#if !defined(MBEDTLS_CONFIG_FILE) | |
#include "mbedtls/config.h" | |
#else | |
#include MBEDTLS_CONFIG_FILE | |
#endif | |
#if defined(MBEDTLS_MD5_C) | |
#include "mbedtls/md5.h" | |
#include "mbedtls/platform_util.h" | |
#include <string.h> | |
#if defined(MBEDTLS_SELF_TEST) | |
#if defined(MBEDTLS_PLATFORM_C) | |
#include "mbedtls/platform.h" | |
#else | |
#include <stdio.h> | |
#define mbedtls_printf printf | |
#endif /* MBEDTLS_PLATFORM_C */ | |
#endif /* MBEDTLS_SELF_TEST */ | |
#if !defined(MBEDTLS_MD5_ALT) | |
/* | |
* 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 mbedtls_md5_init( mbedtls_md5_context *ctx ) | |
{ | |
memset( ctx, 0, sizeof( mbedtls_md5_context ) ); | |
} | |
void mbedtls_md5_free( mbedtls_md5_context *ctx ) | |
{ | |
if( ctx == NULL ) | |
return; | |
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) ); | |
} | |
void mbedtls_md5_clone( mbedtls_md5_context *dst, | |
const mbedtls_md5_context *src ) | |
{ | |
*dst = *src; | |
} | |
/* | |
* MD5 context setup | |
*/ | |
int mbedtls_md5_starts_ret( mbedtls_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; | |
return( 0 ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md5_starts( mbedtls_md5_context *ctx ) | |
{ | |
mbedtls_md5_starts_ret( ctx ); | |
} | |
#endif | |
#if !defined(MBEDTLS_MD5_PROCESS_ALT) | |
int mbedtls_internal_md5_process( mbedtls_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) \ | |
do \ | |
{ \ | |
(a) += F((b),(c),(d)) + X[(k)] + (t); \ | |
(a) = S((a),(s)) + (b); \ | |
} while( 0 ) | |
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; | |
return( 0 ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md5_process( mbedtls_md5_context *ctx, | |
const unsigned char data[64] ) | |
{ | |
mbedtls_internal_md5_process( ctx, data ); | |
} | |
#endif | |
#endif /* !MBEDTLS_MD5_PROCESS_ALT */ | |
/* | |
* MD5 process buffer | |
*/ | |
int mbedtls_md5_update_ret( mbedtls_md5_context *ctx, | |
const unsigned char *input, | |
size_t ilen ) | |
{ | |
int ret; | |
size_t fill; | |
uint32_t left; | |
if( ilen == 0 ) | |
return( 0 ); | |
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 ); | |
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 ) | |
return( ret ); | |
input += fill; | |
ilen -= fill; | |
left = 0; | |
} | |
while( ilen >= 64 ) | |
{ | |
if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 ) | |
return( ret ); | |
input += 64; | |
ilen -= 64; | |
} | |
if( ilen > 0 ) | |
{ | |
memcpy( (void *) (ctx->buffer + left), input, ilen ); | |
} | |
return( 0 ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md5_update( mbedtls_md5_context *ctx, | |
const unsigned char *input, | |
size_t ilen ) | |
{ | |
mbedtls_md5_update_ret( ctx, input, ilen ); | |
} | |
#endif | |
/* | |
* MD5 final digest | |
*/ | |
int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx, | |
unsigned char output[16] ) | |
{ | |
int ret; | |
uint32_t used; | |
uint32_t high, low; | |
/* | |
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length | |
*/ | |
used = ctx->total[0] & 0x3F; | |
ctx->buffer[used++] = 0x80; | |
if( used <= 56 ) | |
{ | |
/* Enough room for padding + length in current block */ | |
memset( ctx->buffer + used, 0, 56 - used ); | |
} | |
else | |
{ | |
/* We'll need an extra block */ | |
memset( ctx->buffer + used, 0, 64 - used ); | |
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 ) | |
return( ret ); | |
memset( ctx->buffer, 0, 56 ); | |
} | |
/* | |
* Add message length | |
*/ | |
high = ( ctx->total[0] >> 29 ) | |
| ( ctx->total[1] << 3 ); | |
low = ( ctx->total[0] << 3 ); | |
PUT_UINT32_LE( low, ctx->buffer, 56 ); | |
PUT_UINT32_LE( high, ctx->buffer, 60 ); | |
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 ) | |
return( ret ); | |
/* | |
* Output final state | |
*/ | |
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 ); | |
return( 0 ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md5_finish( mbedtls_md5_context *ctx, | |
unsigned char output[16] ) | |
{ | |
mbedtls_md5_finish_ret( ctx, output ); | |
} | |
#endif | |
#endif /* !MBEDTLS_MD5_ALT */ | |
/* | |
* output = MD5( input buffer ) | |
*/ | |
int mbedtls_md5_ret( const unsigned char *input, | |
size_t ilen, | |
unsigned char output[16] ) | |
{ | |
int ret; | |
mbedtls_md5_context ctx; | |
mbedtls_md5_init( &ctx ); | |
if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 ) | |
goto exit; | |
if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 ) | |
goto exit; | |
if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 ) | |
goto exit; | |
exit: | |
mbedtls_md5_free( &ctx ); | |
return( ret ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md5( const unsigned char *input, | |
size_t ilen, | |
unsigned char output[16] ) | |
{ | |
mbedtls_md5_ret( input, ilen, output ); | |
} | |
#endif | |
#if defined(MBEDTLS_SELF_TEST) | |
/* | |
* RFC 1321 test vectors | |
*/ | |
static const unsigned char md5_test_buf[7][81] = | |
{ | |
{ "" }, | |
{ "a" }, | |
{ "abc" }, | |
{ "message digest" }, | |
{ "abcdefghijklmnopqrstuvwxyz" }, | |
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, | |
{ "12345678901234567890123456789012345678901234567890123456789012" | |
"345678901234567890" } | |
}; | |
static const size_t md5_test_buflen[7] = | |
{ | |
0, 1, 3, 14, 26, 62, 80 | |
}; | |
static const unsigned char md5_test_sum[7][16] = | |
{ | |
{ 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04, | |
0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E }, | |
{ 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8, | |
0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 }, | |
{ 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0, | |
0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 }, | |
{ 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D, | |
0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 }, | |
{ 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00, | |
0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B }, | |
{ 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5, | |
0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F }, | |
{ 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55, | |
0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A } | |
}; | |
/* | |
* Checkup routine | |
*/ | |
int mbedtls_md5_self_test( int verbose ) | |
{ | |
int i, ret = 0; | |
unsigned char md5sum[16]; | |
for( i = 0; i < 7; i++ ) | |
{ | |
if( verbose != 0 ) | |
mbedtls_printf( " MD5 test #%d: ", i + 1 ); | |
ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum ); | |
if( ret != 0 ) | |
goto fail; | |
if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 ) | |
{ | |
ret = 1; | |
goto fail; | |
} | |
if( verbose != 0 ) | |
mbedtls_printf( "passed\n" ); | |
} | |
if( verbose != 0 ) | |
mbedtls_printf( "\n" ); | |
return( 0 ); | |
fail: | |
if( verbose != 0 ) | |
mbedtls_printf( "failed\n" ); | |
return( ret ); | |
} | |
#endif /* MBEDTLS_SELF_TEST */ | |
#endif /* MBEDTLS_MD5_C */ |