| /* |
| * RFC 1186/1320 compliant MD4 implementation |
| * |
| * Copyright The Mbed TLS Contributors |
| * 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. |
| */ |
| /* |
| * The MD4 algorithm was designed by Ron Rivest in 1990. |
| * |
| * http://www.ietf.org/rfc/rfc1186.txt |
| * http://www.ietf.org/rfc/rfc1320.txt |
| */ |
| |
| #include "common.h" |
| |
| #if defined(MBEDTLS_MD4_C) |
| |
| #include "mbedtls/md4.h" |
| #include "mbedtls/platform_util.h" |
| #include "mbedtls/error.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_MD4_PROCESS_ALT) |
| int mbedtls_internal_md4_process( mbedtls_md4_context *ctx, |
| const unsigned char data[64] ) |
| { |
| struct |
| { |
| uint32_t X[16], A, B, C, D; |
| } local; |
| |
| GET_UINT32_LE( local.X[ 0], data, 0 ); |
| GET_UINT32_LE( local.X[ 1], data, 4 ); |
| GET_UINT32_LE( local.X[ 2], data, 8 ); |
| GET_UINT32_LE( local.X[ 3], data, 12 ); |
| GET_UINT32_LE( local.X[ 4], data, 16 ); |
| GET_UINT32_LE( local.X[ 5], data, 20 ); |
| GET_UINT32_LE( local.X[ 6], data, 24 ); |
| GET_UINT32_LE( local.X[ 7], data, 28 ); |
| GET_UINT32_LE( local.X[ 8], data, 32 ); |
| GET_UINT32_LE( local.X[ 9], data, 36 ); |
| GET_UINT32_LE( local.X[10], data, 40 ); |
| GET_UINT32_LE( local.X[11], data, 44 ); |
| GET_UINT32_LE( local.X[12], data, 48 ); |
| GET_UINT32_LE( local.X[13], data, 52 ); |
| GET_UINT32_LE( local.X[14], data, 56 ); |
| GET_UINT32_LE( local.X[15], data, 60 ); |
| |
| #define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n)))) |
| |
| local.A = ctx->state[0]; |
| local.B = ctx->state[1]; |
| local.C = ctx->state[2]; |
| local.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( local.A, local.B, local.C, local.D, local.X[ 0], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 1], 7 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 2], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[ 3], 19 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 4], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 5], 7 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 6], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[ 7], 19 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 8], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 9], 7 ); |
| P( local.C, local.D, local.A, local.B, local.X[10], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[11], 19 ); |
| P( local.A, local.B, local.C, local.D, local.X[12], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[13], 7 ); |
| P( local.C, local.D, local.A, local.B, local.X[14], 11 ); |
| P( local.B, local.C, local.D, local.A, local.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( local.A, local.B, local.C, local.D, local.X[ 0], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 4], 5 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 8], 9 ); |
| P( local.B, local.C, local.D, local.A, local.X[12], 13 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 1], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 5], 5 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 9], 9 ); |
| P( local.B, local.C, local.D, local.A, local.X[13], 13 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 2], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 6], 5 ); |
| P( local.C, local.D, local.A, local.B, local.X[10], 9 ); |
| P( local.B, local.C, local.D, local.A, local.X[14], 13 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 3], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 7], 5 ); |
| P( local.C, local.D, local.A, local.B, local.X[11], 9 ); |
| P( local.B, local.C, local.D, local.A, local.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( local.A, local.B, local.C, local.D, local.X[ 0], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 8], 9 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 4], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[12], 15 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 2], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[10], 9 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 6], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[14], 15 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 1], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[ 9], 9 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 5], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[13], 15 ); |
| P( local.A, local.B, local.C, local.D, local.X[ 3], 3 ); |
| P( local.D, local.A, local.B, local.C, local.X[11], 9 ); |
| P( local.C, local.D, local.A, local.B, local.X[ 7], 11 ); |
| P( local.B, local.C, local.D, local.A, local.X[15], 15 ); |
| |
| #undef F |
| #undef P |
| |
| ctx->state[0] += local.A; |
| ctx->state[1] += local.B; |
| ctx->state[2] += local.C; |
| ctx->state[3] += local.D; |
| |
| /* Zeroise variables to clear sensitive data from memory. */ |
| mbedtls_platform_zeroize( &local, sizeof( local ) ); |
| |
| return( 0 ); |
| } |
| |
| #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 = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
| 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 ); |
| } |
| |
| 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 = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; |
| 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 ); |
| } |
| |
| #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_ERR_ERROR_CORRUPTION_DETECTED; |
| 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_SELF_TEST) |
| |
| /* |
| * RFC 1320 test vectors |
| */ |
| static const unsigned char md4_test_str[7][81] = |
| { |
| { "" }, |
| { "a" }, |
| { "abc" }, |
| { "message digest" }, |
| { "abcdefghijklmnopqrstuvwxyz" }, |
| { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, |
| { "12345678901234567890123456789012345678901234567890123456789012345678901234567890" } |
| }; |
| |
| 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 */ |