/* | |
* RFC 1186/1320 compliant MD4 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 MD4 algorithm was designed by Ron Rivest in 1990. | |
* | |
* http://www.ietf.org/rfc/rfc1186.txt | |
* http://www.ietf.org/rfc/rfc1320.txt | |
*/ | |
#if !defined(MBEDTLS_CONFIG_FILE) | |
#include "mbedtls/config.h" | |
#else | |
#include MBEDTLS_CONFIG_FILE | |
#endif | |
#if defined(MBEDTLS_MD4_C) | |
#include "mbedtls/md4.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_MD4_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_md4_init( mbedtls_md4_context *ctx ) | |
{ | |
memset( ctx, 0, sizeof( mbedtls_md4_context ) ); | |
} | |
void mbedtls_md4_free( mbedtls_md4_context *ctx ) | |
{ | |
if( ctx == NULL ) | |
return; | |
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md4_context ) ); | |
} | |
void mbedtls_md4_clone( mbedtls_md4_context *dst, | |
const mbedtls_md4_context *src ) | |
{ | |
*dst = *src; | |
} | |
/* | |
* MD4 context setup | |
*/ | |
int mbedtls_md4_starts_ret( mbedtls_md4_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_md4_starts( mbedtls_md4_context *ctx ) | |
{ | |
mbedtls_md4_starts_ret( ctx ); | |
} | |
#endif | |
#if !defined(MBEDTLS_MD4_PROCESS_ALT) | |
int mbedtls_internal_md4_process( mbedtls_md4_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)))) | |
A = ctx->state[0]; | |
B = ctx->state[1]; | |
C = ctx->state[2]; | |
D = ctx->state[3]; | |
#define F(x, y, z) (((x) & (y)) | ((~(x)) & (z))) | |
#define P(a,b,c,d,x,s) \ | |
do \ | |
{ \ | |
(a) += F((b),(c),(d)) + (x); \ | |
(a) = S((a),(s)); \ | |
} while( 0 ) | |
P( A, B, C, D, X[ 0], 3 ); | |
P( D, A, B, C, X[ 1], 7 ); | |
P( C, D, A, B, X[ 2], 11 ); | |
P( B, C, D, A, X[ 3], 19 ); | |
P( A, B, C, D, X[ 4], 3 ); | |
P( D, A, B, C, X[ 5], 7 ); | |
P( C, D, A, B, X[ 6], 11 ); | |
P( B, C, D, A, X[ 7], 19 ); | |
P( A, B, C, D, X[ 8], 3 ); | |
P( D, A, B, C, X[ 9], 7 ); | |
P( C, D, A, B, X[10], 11 ); | |
P( B, C, D, A, X[11], 19 ); | |
P( A, B, C, D, X[12], 3 ); | |
P( D, A, B, C, X[13], 7 ); | |
P( C, D, A, B, X[14], 11 ); | |
P( B, C, D, A, X[15], 19 ); | |
#undef P | |
#undef F | |
#define F(x,y,z) (((x) & (y)) | ((x) & (z)) | ((y) & (z))) | |
#define P(a,b,c,d,x,s) \ | |
do \ | |
{ \ | |
(a) += F((b),(c),(d)) + (x) + 0x5A827999; \ | |
(a) = S((a),(s)); \ | |
} while( 0 ) | |
P( A, B, C, D, X[ 0], 3 ); | |
P( D, A, B, C, X[ 4], 5 ); | |
P( C, D, A, B, X[ 8], 9 ); | |
P( B, C, D, A, X[12], 13 ); | |
P( A, B, C, D, X[ 1], 3 ); | |
P( D, A, B, C, X[ 5], 5 ); | |
P( C, D, A, B, X[ 9], 9 ); | |
P( B, C, D, A, X[13], 13 ); | |
P( A, B, C, D, X[ 2], 3 ); | |
P( D, A, B, C, X[ 6], 5 ); | |
P( C, D, A, B, X[10], 9 ); | |
P( B, C, D, A, X[14], 13 ); | |
P( A, B, C, D, X[ 3], 3 ); | |
P( D, A, B, C, X[ 7], 5 ); | |
P( C, D, A, B, X[11], 9 ); | |
P( B, C, D, A, X[15], 13 ); | |
#undef P | |
#undef F | |
#define F(x,y,z) ((x) ^ (y) ^ (z)) | |
#define P(a,b,c,d,x,s) \ | |
do \ | |
{ \ | |
(a) += F((b),(c),(d)) + (x) + 0x6ED9EBA1; \ | |
(a) = S((a),(s)); \ | |
} while( 0 ) | |
P( A, B, C, D, X[ 0], 3 ); | |
P( D, A, B, C, X[ 8], 9 ); | |
P( C, D, A, B, X[ 4], 11 ); | |
P( B, C, D, A, X[12], 15 ); | |
P( A, B, C, D, X[ 2], 3 ); | |
P( D, A, B, C, X[10], 9 ); | |
P( C, D, A, B, X[ 6], 11 ); | |
P( B, C, D, A, X[14], 15 ); | |
P( A, B, C, D, X[ 1], 3 ); | |
P( D, A, B, C, X[ 9], 9 ); | |
P( C, D, A, B, X[ 5], 11 ); | |
P( B, C, D, A, X[13], 15 ); | |
P( A, B, C, D, X[ 3], 3 ); | |
P( D, A, B, C, X[11], 9 ); | |
P( C, D, A, B, X[ 7], 11 ); | |
P( B, C, D, A, X[15], 15 ); | |
#undef F | |
#undef P | |
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_md4_process( mbedtls_md4_context *ctx, | |
const unsigned char data[64] ) | |
{ | |
mbedtls_internal_md4_process( ctx, data ); | |
} | |
#endif | |
#endif /* !MBEDTLS_MD4_PROCESS_ALT */ | |
/* | |
* MD4 process buffer | |
*/ | |
int mbedtls_md4_update_ret( mbedtls_md4_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), | |
(void *) input, fill ); | |
if( ( ret = mbedtls_internal_md4_process( ctx, ctx->buffer ) ) != 0 ) | |
return( ret ); | |
input += fill; | |
ilen -= fill; | |
left = 0; | |
} | |
while( ilen >= 64 ) | |
{ | |
if( ( ret = mbedtls_internal_md4_process( ctx, input ) ) != 0 ) | |
return( ret ); | |
input += 64; | |
ilen -= 64; | |
} | |
if( ilen > 0 ) | |
{ | |
memcpy( (void *) (ctx->buffer + left), | |
(void *) input, ilen ); | |
} | |
return( 0 ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md4_update( mbedtls_md4_context *ctx, | |
const unsigned char *input, | |
size_t ilen ) | |
{ | |
mbedtls_md4_update_ret( ctx, input, ilen ); | |
} | |
#endif | |
static const unsigned char md4_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 | |
}; | |
/* | |
* MD4 final digest | |
*/ | |
int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx, | |
unsigned char output[16] ) | |
{ | |
int ret; | |
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 ); | |
ret = mbedtls_md4_update_ret( ctx, (unsigned char *)md4_padding, padn ); | |
if( ret != 0 ) | |
return( ret ); | |
if( ( ret = mbedtls_md4_update_ret( ctx, msglen, 8 ) ) != 0 ) | |
return( ret ); | |
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_md4_finish( mbedtls_md4_context *ctx, | |
unsigned char output[16] ) | |
{ | |
mbedtls_md4_finish_ret( ctx, output ); | |
} | |
#endif | |
#endif /* !MBEDTLS_MD4_ALT */ | |
/* | |
* output = MD4( input buffer ) | |
*/ | |
int mbedtls_md4_ret( const unsigned char *input, | |
size_t ilen, | |
unsigned char output[16] ) | |
{ | |
int ret; | |
mbedtls_md4_context ctx; | |
mbedtls_md4_init( &ctx ); | |
if( ( ret = mbedtls_md4_starts_ret( &ctx ) ) != 0 ) | |
goto exit; | |
if( ( ret = mbedtls_md4_update_ret( &ctx, input, ilen ) ) != 0 ) | |
goto exit; | |
if( ( ret = mbedtls_md4_finish_ret( &ctx, output ) ) != 0 ) | |
goto exit; | |
exit: | |
mbedtls_md4_free( &ctx ); | |
return( ret ); | |
} | |
#if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
void mbedtls_md4( const unsigned char *input, | |
size_t ilen, | |
unsigned char output[16] ) | |
{ | |
mbedtls_md4_ret( input, ilen, output ); | |
} | |
#endif | |
#if defined(MBEDTLS_SELF_TEST) | |
/* | |
* RFC 1320 test vectors | |
*/ | |
static const unsigned char md4_test_str[7][81] = | |
{ | |
{ "" }, | |
{ "a" }, | |
{ "abc" }, | |
{ "message digest" }, | |
{ "abcdefghijklmnopqrstuvwxyz" }, | |
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, | |
{ "12345678901234567890123456789012345678901234567890123456789012" | |
"345678901234567890" } | |
}; | |
static const size_t md4_test_strlen[7] = | |
{ | |
0, 1, 3, 14, 26, 62, 80 | |
}; | |
static const unsigned char md4_test_sum[7][16] = | |
{ | |
{ 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31, | |
0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 }, | |
{ 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46, | |
0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 }, | |
{ 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52, | |
0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D }, | |
{ 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8, | |
0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B }, | |
{ 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD, | |
0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 }, | |
{ 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35, | |
0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 }, | |
{ 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19, | |
0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 } | |
}; | |
/* | |
* Checkup routine | |
*/ | |
int mbedtls_md4_self_test( int verbose ) | |
{ | |
int i, ret = 0; | |
unsigned char md4sum[16]; | |
for( i = 0; i < 7; i++ ) | |
{ | |
if( verbose != 0 ) | |
mbedtls_printf( " MD4 test #%d: ", i + 1 ); | |
ret = mbedtls_md4_ret( md4_test_str[i], md4_test_strlen[i], md4sum ); | |
if( ret != 0 ) | |
goto fail; | |
if( memcmp( md4sum, md4_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_MD4_C */ |