| /* |
| * 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) \ |
| { \ |
| 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; |
| |
| 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 */ |