Mark Radbourne
mbed TLS Build
Dependents: Encrypt_Decrypt1 mbed_blink_tls encrypt encrypt
Diff: library/md5.c
- Revision:
- 0:cdf462088d13
diff -r 000000000000 -r cdf462088d13 library/md5.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/library/md5.c Thu Jan 05 00:18:44 2017 +0000
@@ -0,0 +1,404 @@
+/*
+ * 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 <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)
+
+/* Implementation that should never be optimized out by the compiler */
+static void mbedtls_zeroize( void *v, size_t n ) {
+ volatile unsigned char *p = v; while( n-- ) *p++ = 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 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_zeroize( ctx, sizeof( mbedtls_md5_context ) );
+}
+
+void mbedtls_md5_clone( mbedtls_md5_context *dst,
+ const mbedtls_md5_context *src )
+{
+ *dst = *src;
+}
+
+/*
+ * MD5 context setup
+ */
+void mbedtls_md5_starts( 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;
+}
+
+#if !defined(MBEDTLS_MD5_PROCESS_ALT)
+void mbedtls_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;
+}
+#endif /* !MBEDTLS_MD5_PROCESS_ALT */
+
+/*
+ * MD5 process buffer
+ */
+void mbedtls_md5_update( mbedtls_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 );
+ mbedtls_md5_process( ctx, ctx->buffer );
+ input += fill;
+ ilen -= fill;
+ left = 0;
+ }
+
+ while( ilen >= 64 )
+ {
+ mbedtls_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 mbedtls_md5_finish( mbedtls_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 );
+
+ mbedtls_md5_update( ctx, md5_padding, padn );
+ mbedtls_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 );
+}
+
+#endif /* !MBEDTLS_MD5_ALT */
+
+/*
+ * output = MD5( input buffer )
+ */
+void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] )
+{
+ mbedtls_md5_context ctx;
+
+ mbedtls_md5_init( &ctx );
+ mbedtls_md5_starts( &ctx );
+ mbedtls_md5_update( &ctx, input, ilen );
+ mbedtls_md5_finish( &ctx, output );
+ mbedtls_md5_free( &ctx );
+}
+
+#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 int 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;
+ unsigned char md5sum[16];
+
+ for( i = 0; i < 7; i++ )
+ {
+ if( verbose != 0 )
+ mbedtls_printf( " MD5 test #%d: ", i + 1 );
+
+ mbedtls_md5( md5_test_buf[i], md5_test_buflen[i], md5sum );
+
+ if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
+ {
+ if( verbose != 0 )
+ mbedtls_printf( "failed\n" );
+
+ return( 1 );
+ }
+
+ if( verbose != 0 )
+ mbedtls_printf( "passed\n" );
+ }
+
+ if( verbose != 0 )
+ mbedtls_printf( "\n" );
+
+ return( 0 );
+}
+
+#endif /* MBEDTLS_SELF_TEST */
+
+#endif /* MBEDTLS_MD5_C */