[398] | 1 | /*
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| 2 | * FIPS-180-2 compliant SHA-256 implementation
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| 3 | *
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| 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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| 5 | * SPDX-License-Identifier: Apache-2.0
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| 6 | *
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may
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| 8 | * not use this file except in compliance with the License.
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| 9 | * You may obtain a copy of the License at
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| 10 | *
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0
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| 12 | *
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| 13 | * Unless required by applicable law or agreed to in writing, software
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 16 | * See the License for the specific language governing permissions and
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| 17 | * limitations under the License.
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| 18 | *
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| 19 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 20 | */
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| 21 | /*
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| 22 | * The SHA-256 Secure Hash Standard was published by NIST in 2002.
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| 23 | *
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| 24 | * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
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| 25 | */
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| 26 |
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| 27 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 28 | #include "mbedtls/config.h"
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| 29 | #else
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| 30 | #include MBEDTLS_CONFIG_FILE
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| 31 | #endif
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| 32 |
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| 33 | #if defined(MBEDTLS_SHA256_C)
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| 34 |
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| 35 | #include "mbedtls/sha256.h"
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| 36 | #include "mbedtls/platform_util.h"
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| 37 |
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| 38 | #include <string.h>
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| 39 |
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| 40 | #if defined(MBEDTLS_SELF_TEST)
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| 41 | #if defined(MBEDTLS_PLATFORM_C)
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| 42 | #include "mbedtls/platform.h"
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| 43 | #else
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| 44 | #include <stdio.h>
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| 45 | #include <stdlib.h>
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| 46 | #define mbedtls_printf printf
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| 47 | #define mbedtls_calloc calloc
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| 48 | #define mbedtls_free free
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| 49 | #endif /* MBEDTLS_PLATFORM_C */
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| 50 | #endif /* MBEDTLS_SELF_TEST */
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| 51 |
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| 52 | #define SHA256_VALIDATE_RET(cond) \
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| 53 | MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA256_BAD_INPUT_DATA )
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| 54 | #define SHA256_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
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| 55 |
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| 56 | #if !defined(MBEDTLS_SHA256_ALT)
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| 57 |
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| 58 | /*
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| 59 | * 32-bit integer manipulation macros (big endian)
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| 60 | */
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| 61 | #ifndef GET_UINT32_BE
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| 62 | #define GET_UINT32_BE(n,b,i) \
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| 63 | do { \
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| 64 | (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
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| 65 | | ( (uint32_t) (b)[(i) + 1] << 16 ) \
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| 66 | | ( (uint32_t) (b)[(i) + 2] << 8 ) \
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| 67 | | ( (uint32_t) (b)[(i) + 3] ); \
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| 68 | } while( 0 )
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| 69 | #endif
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| 70 |
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| 71 | #ifndef PUT_UINT32_BE
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| 72 | #define PUT_UINT32_BE(n,b,i) \
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| 73 | do { \
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| 74 | (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
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| 75 | (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
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| 76 | (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
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| 77 | (b)[(i) + 3] = (unsigned char) ( (n) ); \
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| 78 | } while( 0 )
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| 79 | #endif
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| 80 |
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| 81 | void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
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| 82 | {
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| 83 | SHA256_VALIDATE( ctx != NULL );
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| 84 |
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| 85 | memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
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| 86 | }
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| 87 |
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| 88 | void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
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| 89 | {
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| 90 | if( ctx == NULL )
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| 91 | return;
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| 92 |
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| 93 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
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| 94 | }
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| 95 |
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| 96 | void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
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| 97 | const mbedtls_sha256_context *src )
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| 98 | {
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| 99 | SHA256_VALIDATE( dst != NULL );
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| 100 | SHA256_VALIDATE( src != NULL );
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| 101 |
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| 102 | *dst = *src;
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| 103 | }
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| 104 |
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| 105 | /*
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| 106 | * SHA-256 context setup
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| 107 | */
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| 108 | int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 )
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| 109 | {
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| 110 | SHA256_VALIDATE_RET( ctx != NULL );
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| 111 | SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
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| 112 |
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| 113 | ctx->total[0] = 0;
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| 114 | ctx->total[1] = 0;
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| 115 |
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| 116 | if( is224 == 0 )
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| 117 | {
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| 118 | /* SHA-256 */
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| 119 | ctx->state[0] = 0x6A09E667;
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| 120 | ctx->state[1] = 0xBB67AE85;
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| 121 | ctx->state[2] = 0x3C6EF372;
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| 122 | ctx->state[3] = 0xA54FF53A;
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| 123 | ctx->state[4] = 0x510E527F;
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| 124 | ctx->state[5] = 0x9B05688C;
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| 125 | ctx->state[6] = 0x1F83D9AB;
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| 126 | ctx->state[7] = 0x5BE0CD19;
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| 127 | }
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| 128 | else
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| 129 | {
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| 130 | /* SHA-224 */
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| 131 | ctx->state[0] = 0xC1059ED8;
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| 132 | ctx->state[1] = 0x367CD507;
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| 133 | ctx->state[2] = 0x3070DD17;
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| 134 | ctx->state[3] = 0xF70E5939;
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| 135 | ctx->state[4] = 0xFFC00B31;
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| 136 | ctx->state[5] = 0x68581511;
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| 137 | ctx->state[6] = 0x64F98FA7;
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| 138 | ctx->state[7] = 0xBEFA4FA4;
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| 139 | }
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| 140 |
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| 141 | ctx->is224 = is224;
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| 142 |
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| 143 | return( 0 );
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| 144 | }
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| 145 |
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| 146 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 147 | void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
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| 148 | int is224 )
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| 149 | {
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| 150 | mbedtls_sha256_starts_ret( ctx, is224 );
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| 151 | }
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| 152 | #endif
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| 153 |
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| 154 | #if !defined(MBEDTLS_SHA256_PROCESS_ALT)
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| 155 | static const uint32_t K[] =
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| 156 | {
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| 157 | 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
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| 158 | 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
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| 159 | 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
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| 160 | 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
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| 161 | 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
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| 162 | 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
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| 163 | 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
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| 164 | 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
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| 165 | 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
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| 166 | 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
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| 167 | 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
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| 168 | 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
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| 169 | 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
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| 170 | 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
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| 171 | 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
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| 172 | 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
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| 173 | };
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| 174 |
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| 175 | #define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
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| 176 | #define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
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| 177 |
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| 178 | #define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
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| 179 | #define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
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| 180 |
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| 181 | #define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
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| 182 | #define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
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| 183 |
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| 184 | #define F0(x,y,z) ((x & y) | (z & (x | y)))
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| 185 | #define F1(x,y,z) (z ^ (x & (y ^ z)))
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| 186 |
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| 187 | #define R(t) \
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| 188 | ( \
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| 189 | W[t] = S1(W[t - 2]) + W[t - 7] + \
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| 190 | S0(W[t - 15]) + W[t - 16] \
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| 191 | )
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| 192 |
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| 193 | #define P(a,b,c,d,e,f,g,h,x,K) \
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| 194 | { \
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| 195 | temp1 = h + S3(e) + F1(e,f,g) + K + x; \
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| 196 | temp2 = S2(a) + F0(a,b,c); \
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| 197 | d += temp1; h = temp1 + temp2; \
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| 198 | }
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| 199 |
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| 200 | int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
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| 201 | const unsigned char data[64] )
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| 202 | {
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| 203 | uint32_t temp1, temp2, W[64];
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| 204 | uint32_t A[8];
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| 205 | unsigned int i;
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| 206 |
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| 207 | SHA256_VALIDATE_RET( ctx != NULL );
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| 208 | SHA256_VALIDATE_RET( (const unsigned char *)data != NULL );
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| 209 |
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| 210 | for( i = 0; i < 8; i++ )
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| 211 | A[i] = ctx->state[i];
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| 212 |
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| 213 | #if defined(MBEDTLS_SHA256_SMALLER)
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| 214 | for( i = 0; i < 64; i++ )
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| 215 | {
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| 216 | if( i < 16 )
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| 217 | GET_UINT32_BE( W[i], data, 4 * i );
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| 218 | else
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| 219 | R( i );
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| 220 |
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| 221 | P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
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| 222 |
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| 223 | temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
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| 224 | A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
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| 225 | }
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| 226 | #else /* MBEDTLS_SHA256_SMALLER */
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| 227 | for( i = 0; i < 16; i++ )
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| 228 | GET_UINT32_BE( W[i], data, 4 * i );
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| 229 |
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| 230 | for( i = 0; i < 16; i += 8 )
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| 231 | {
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| 232 | P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] );
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| 233 | P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] );
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| 234 | P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] );
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| 235 | P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] );
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| 236 | P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] );
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| 237 | P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] );
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| 238 | P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] );
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| 239 | P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] );
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| 240 | }
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| 241 |
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| 242 | for( i = 16; i < 64; i += 8 )
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| 243 | {
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| 244 | P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] );
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| 245 | P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] );
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| 246 | P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] );
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| 247 | P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] );
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| 248 | P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] );
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| 249 | P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] );
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| 250 | P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] );
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| 251 | P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] );
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| 252 | }
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| 253 | #endif /* MBEDTLS_SHA256_SMALLER */
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| 254 |
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| 255 | for( i = 0; i < 8; i++ )
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| 256 | ctx->state[i] += A[i];
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| 257 |
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| 258 | return( 0 );
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| 259 | }
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| 260 |
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| 261 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 262 | void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
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| 263 | const unsigned char data[64] )
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| 264 | {
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| 265 | mbedtls_internal_sha256_process( ctx, data );
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| 266 | }
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| 267 | #endif
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| 268 | #endif /* !MBEDTLS_SHA256_PROCESS_ALT */
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| 269 |
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| 270 | /*
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| 271 | * SHA-256 process buffer
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| 272 | */
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| 273 | int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
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| 274 | const unsigned char *input,
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| 275 | size_t ilen )
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| 276 | {
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| 277 | int ret;
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| 278 | size_t fill;
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| 279 | uint32_t left;
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| 280 |
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| 281 | SHA256_VALIDATE_RET( ctx != NULL );
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| 282 | SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
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| 283 |
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| 284 | if( ilen == 0 )
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| 285 | return( 0 );
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| 286 |
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| 287 | left = ctx->total[0] & 0x3F;
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| 288 | fill = 64 - left;
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| 289 |
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| 290 | ctx->total[0] += (uint32_t) ilen;
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| 291 | ctx->total[0] &= 0xFFFFFFFF;
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| 292 |
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| 293 | if( ctx->total[0] < (uint32_t) ilen )
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| 294 | ctx->total[1]++;
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| 295 |
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| 296 | if( left && ilen >= fill )
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| 297 | {
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| 298 | memcpy( (void *) (ctx->buffer + left), input, fill );
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| 299 |
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| 300 | if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
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| 301 | return( ret );
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| 302 |
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| 303 | input += fill;
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| 304 | ilen -= fill;
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| 305 | left = 0;
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| 306 | }
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| 307 |
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| 308 | while( ilen >= 64 )
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| 309 | {
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| 310 | if( ( ret = mbedtls_internal_sha256_process( ctx, input ) ) != 0 )
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| 311 | return( ret );
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| 312 |
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| 313 | input += 64;
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| 314 | ilen -= 64;
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| 315 | }
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| 316 |
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| 317 | if( ilen > 0 )
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| 318 | memcpy( (void *) (ctx->buffer + left), input, ilen );
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| 319 |
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| 320 | return( 0 );
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| 321 | }
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| 322 |
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| 323 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 324 | void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
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| 325 | const unsigned char *input,
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| 326 | size_t ilen )
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| 327 | {
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| 328 | mbedtls_sha256_update_ret( ctx, input, ilen );
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| 329 | }
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| 330 | #endif
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| 331 |
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| 332 | /*
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| 333 | * SHA-256 final digest
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| 334 | */
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| 335 | int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
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| 336 | unsigned char output[32] )
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| 337 | {
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| 338 | int ret;
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| 339 | uint32_t used;
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| 340 | uint32_t high, low;
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| 341 |
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| 342 | SHA256_VALIDATE_RET( ctx != NULL );
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| 343 | SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
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| 344 |
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| 345 | /*
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| 346 | * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
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| 347 | */
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| 348 | used = ctx->total[0] & 0x3F;
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| 349 |
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| 350 | ctx->buffer[used++] = 0x80;
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| 351 |
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| 352 | if( used <= 56 )
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| 353 | {
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| 354 | /* Enough room for padding + length in current block */
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| 355 | memset( ctx->buffer + used, 0, 56 - used );
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| 356 | }
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| 357 | else
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| 358 | {
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| 359 | /* We'll need an extra block */
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| 360 | memset( ctx->buffer + used, 0, 64 - used );
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| 361 |
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| 362 | if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
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| 363 | return( ret );
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| 364 |
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| 365 | memset( ctx->buffer, 0, 56 );
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| 366 | }
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| 367 |
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| 368 | /*
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| 369 | * Add message length
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| 370 | */
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| 371 | high = ( ctx->total[0] >> 29 )
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| 372 | | ( ctx->total[1] << 3 );
|
---|
| 373 | low = ( ctx->total[0] << 3 );
|
---|
| 374 |
|
---|
| 375 | PUT_UINT32_BE( high, ctx->buffer, 56 );
|
---|
| 376 | PUT_UINT32_BE( low, ctx->buffer, 60 );
|
---|
| 377 |
|
---|
| 378 | if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
|
---|
| 379 | return( ret );
|
---|
| 380 |
|
---|
| 381 | /*
|
---|
| 382 | * Output final state
|
---|
| 383 | */
|
---|
| 384 | PUT_UINT32_BE( ctx->state[0], output, 0 );
|
---|
| 385 | PUT_UINT32_BE( ctx->state[1], output, 4 );
|
---|
| 386 | PUT_UINT32_BE( ctx->state[2], output, 8 );
|
---|
| 387 | PUT_UINT32_BE( ctx->state[3], output, 12 );
|
---|
| 388 | PUT_UINT32_BE( ctx->state[4], output, 16 );
|
---|
| 389 | PUT_UINT32_BE( ctx->state[5], output, 20 );
|
---|
| 390 | PUT_UINT32_BE( ctx->state[6], output, 24 );
|
---|
| 391 |
|
---|
| 392 | if( ctx->is224 == 0 )
|
---|
| 393 | PUT_UINT32_BE( ctx->state[7], output, 28 );
|
---|
| 394 |
|
---|
| 395 | return( 0 );
|
---|
| 396 | }
|
---|
| 397 |
|
---|
| 398 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
---|
| 399 | void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
|
---|
| 400 | unsigned char output[32] )
|
---|
| 401 | {
|
---|
| 402 | mbedtls_sha256_finish_ret( ctx, output );
|
---|
| 403 | }
|
---|
| 404 | #endif
|
---|
| 405 |
|
---|
| 406 | #endif /* !MBEDTLS_SHA256_ALT */
|
---|
| 407 |
|
---|
| 408 | /*
|
---|
| 409 | * output = SHA-256( input buffer )
|
---|
| 410 | */
|
---|
| 411 | int mbedtls_sha256_ret( const unsigned char *input,
|
---|
| 412 | size_t ilen,
|
---|
| 413 | unsigned char output[32],
|
---|
| 414 | int is224 )
|
---|
| 415 | {
|
---|
| 416 | int ret;
|
---|
| 417 | mbedtls_sha256_context ctx;
|
---|
| 418 |
|
---|
| 419 | SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
|
---|
| 420 | SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
|
---|
| 421 | SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
|
---|
| 422 |
|
---|
| 423 | mbedtls_sha256_init( &ctx );
|
---|
| 424 |
|
---|
| 425 | if( ( ret = mbedtls_sha256_starts_ret( &ctx, is224 ) ) != 0 )
|
---|
| 426 | goto exit;
|
---|
| 427 |
|
---|
| 428 | if( ( ret = mbedtls_sha256_update_ret( &ctx, input, ilen ) ) != 0 )
|
---|
| 429 | goto exit;
|
---|
| 430 |
|
---|
| 431 | if( ( ret = mbedtls_sha256_finish_ret( &ctx, output ) ) != 0 )
|
---|
| 432 | goto exit;
|
---|
| 433 |
|
---|
| 434 | exit:
|
---|
| 435 | mbedtls_sha256_free( &ctx );
|
---|
| 436 |
|
---|
| 437 | return( ret );
|
---|
| 438 | }
|
---|
| 439 |
|
---|
| 440 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
---|
| 441 | void mbedtls_sha256( const unsigned char *input,
|
---|
| 442 | size_t ilen,
|
---|
| 443 | unsigned char output[32],
|
---|
| 444 | int is224 )
|
---|
| 445 | {
|
---|
| 446 | mbedtls_sha256_ret( input, ilen, output, is224 );
|
---|
| 447 | }
|
---|
| 448 | #endif
|
---|
| 449 |
|
---|
| 450 | #if defined(MBEDTLS_SELF_TEST)
|
---|
| 451 | /*
|
---|
| 452 | * FIPS-180-2 test vectors
|
---|
| 453 | */
|
---|
| 454 | static const unsigned char sha256_test_buf[3][57] =
|
---|
| 455 | {
|
---|
| 456 | { "abc" },
|
---|
| 457 | { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
|
---|
| 458 | { "" }
|
---|
| 459 | };
|
---|
| 460 |
|
---|
| 461 | static const size_t sha256_test_buflen[3] =
|
---|
| 462 | {
|
---|
| 463 | 3, 56, 1000
|
---|
| 464 | };
|
---|
| 465 |
|
---|
| 466 | static const unsigned char sha256_test_sum[6][32] =
|
---|
| 467 | {
|
---|
| 468 | /*
|
---|
| 469 | * SHA-224 test vectors
|
---|
| 470 | */
|
---|
| 471 | { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
|
---|
| 472 | 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
|
---|
| 473 | 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
|
---|
| 474 | 0xE3, 0x6C, 0x9D, 0xA7 },
|
---|
| 475 | { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
|
---|
| 476 | 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
|
---|
| 477 | 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
|
---|
| 478 | 0x52, 0x52, 0x25, 0x25 },
|
---|
| 479 | { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
|
---|
| 480 | 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
|
---|
| 481 | 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
|
---|
| 482 | 0x4E, 0xE7, 0xAD, 0x67 },
|
---|
| 483 |
|
---|
| 484 | /*
|
---|
| 485 | * SHA-256 test vectors
|
---|
| 486 | */
|
---|
| 487 | { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
|
---|
| 488 | 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
|
---|
| 489 | 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
|
---|
| 490 | 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
|
---|
| 491 | { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
|
---|
| 492 | 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
|
---|
| 493 | 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
|
---|
| 494 | 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
|
---|
| 495 | { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
|
---|
| 496 | 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
|
---|
| 497 | 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
|
---|
| 498 | 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
|
---|
| 499 | };
|
---|
| 500 |
|
---|
| 501 | /*
|
---|
| 502 | * Checkup routine
|
---|
| 503 | */
|
---|
| 504 | int mbedtls_sha256_self_test( int verbose )
|
---|
| 505 | {
|
---|
| 506 | int i, j, k, buflen, ret = 0;
|
---|
| 507 | unsigned char *buf;
|
---|
| 508 | unsigned char sha256sum[32];
|
---|
| 509 | mbedtls_sha256_context ctx;
|
---|
| 510 |
|
---|
| 511 | buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
|
---|
| 512 | if( NULL == buf )
|
---|
| 513 | {
|
---|
| 514 | if( verbose != 0 )
|
---|
| 515 | mbedtls_printf( "Buffer allocation failed\n" );
|
---|
| 516 |
|
---|
| 517 | return( 1 );
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | mbedtls_sha256_init( &ctx );
|
---|
| 521 |
|
---|
| 522 | for( i = 0; i < 6; i++ )
|
---|
| 523 | {
|
---|
| 524 | j = i % 3;
|
---|
| 525 | k = i < 3;
|
---|
| 526 |
|
---|
| 527 | if( verbose != 0 )
|
---|
| 528 | mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
|
---|
| 529 |
|
---|
| 530 | if( ( ret = mbedtls_sha256_starts_ret( &ctx, k ) ) != 0 )
|
---|
| 531 | goto fail;
|
---|
| 532 |
|
---|
| 533 | if( j == 2 )
|
---|
| 534 | {
|
---|
| 535 | memset( buf, 'a', buflen = 1000 );
|
---|
| 536 |
|
---|
| 537 | for( j = 0; j < 1000; j++ )
|
---|
| 538 | {
|
---|
| 539 | ret = mbedtls_sha256_update_ret( &ctx, buf, buflen );
|
---|
| 540 | if( ret != 0 )
|
---|
| 541 | goto fail;
|
---|
| 542 | }
|
---|
| 543 |
|
---|
| 544 | }
|
---|
| 545 | else
|
---|
| 546 | {
|
---|
| 547 | ret = mbedtls_sha256_update_ret( &ctx, sha256_test_buf[j],
|
---|
| 548 | sha256_test_buflen[j] );
|
---|
| 549 | if( ret != 0 )
|
---|
| 550 | goto fail;
|
---|
| 551 | }
|
---|
| 552 |
|
---|
| 553 | if( ( ret = mbedtls_sha256_finish_ret( &ctx, sha256sum ) ) != 0 )
|
---|
| 554 | goto fail;
|
---|
| 555 |
|
---|
| 556 |
|
---|
| 557 | if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
|
---|
| 558 | {
|
---|
| 559 | ret = 1;
|
---|
| 560 | goto fail;
|
---|
| 561 | }
|
---|
| 562 |
|
---|
| 563 | if( verbose != 0 )
|
---|
| 564 | mbedtls_printf( "passed\n" );
|
---|
| 565 | }
|
---|
| 566 |
|
---|
| 567 | if( verbose != 0 )
|
---|
| 568 | mbedtls_printf( "\n" );
|
---|
| 569 |
|
---|
| 570 | goto exit;
|
---|
| 571 |
|
---|
| 572 | fail:
|
---|
| 573 | if( verbose != 0 )
|
---|
| 574 | mbedtls_printf( "failed\n" );
|
---|
| 575 |
|
---|
| 576 | exit:
|
---|
| 577 | mbedtls_sha256_free( &ctx );
|
---|
| 578 | mbedtls_free( buf );
|
---|
| 579 |
|
---|
| 580 | return( ret );
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | #endif /* MBEDTLS_SELF_TEST */
|
---|
| 584 |
|
---|
| 585 | #endif /* MBEDTLS_SHA256_C */
|
---|