Varun Bahl / CyaSSL-Encryp

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sha512.c@2:d0516dc143b1, 2017-05-10 (annotated)

Committer:
vbahl2
Date:
Wed May 10 18:20:47 2017 +0000
Revision:
2:d0516dc143b1
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vbahl2 2:d0516dc143b1 1 /*
vbahl2 2:d0516dc143b1 2 * FIPS-180-2 compliant SHA-384/512 implementation
vbahl2 2:d0516dc143b1 3 *
vbahl2 2:d0516dc143b1 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
vbahl2 2:d0516dc143b1 5 * SPDX-License-Identifier: Apache-2.0
vbahl2 2:d0516dc143b1 6 *
vbahl2 2:d0516dc143b1 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
vbahl2 2:d0516dc143b1 8 * not use this file except in compliance with the License.
vbahl2 2:d0516dc143b1 9 * You may obtain a copy of the License at
vbahl2 2:d0516dc143b1 10 *
vbahl2 2:d0516dc143b1 11 * http://www.apache.org/licenses/LICENSE-2.0
vbahl2 2:d0516dc143b1 12 *
vbahl2 2:d0516dc143b1 13 * Unless required by applicable law or agreed to in writing, software
vbahl2 2:d0516dc143b1 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
vbahl2 2:d0516dc143b1 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vbahl2 2:d0516dc143b1 16 * See the License for the specific language governing permissions and
vbahl2 2:d0516dc143b1 17 * limitations under the License.
vbahl2 2:d0516dc143b1 18 *
vbahl2 2:d0516dc143b1 19 * This file is part of mbed TLS (https://tls.mbed.org)
vbahl2 2:d0516dc143b1 20 */
vbahl2 2:d0516dc143b1 21 /*
vbahl2 2:d0516dc143b1 22 * The SHA-512 Secure Hash Standard was published by NIST in 2002.
vbahl2 2:d0516dc143b1 23 *
vbahl2 2:d0516dc143b1 24 * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
vbahl2 2:d0516dc143b1 25 */
vbahl2 2:d0516dc143b1 26
vbahl2 2:d0516dc143b1 27 #if !defined(MBEDTLS_CONFIG_FILE)
vbahl2 2:d0516dc143b1 28 #include "config.h"
vbahl2 2:d0516dc143b1 29 #else
vbahl2 2:d0516dc143b1 30 #include MBEDTLS_CONFIG_FILE
vbahl2 2:d0516dc143b1 31 #endif
vbahl2 2:d0516dc143b1 32
vbahl2 2:d0516dc143b1 33 //#if defined(MBEDTLS_SHA512_C)
vbahl2 2:d0516dc143b1 34
vbahl2 2:d0516dc143b1 35 #include "sha512.h"
vbahl2 2:d0516dc143b1 36
vbahl2 2:d0516dc143b1 37 #if defined(_MSC_VER) || defined(__WATCOMC__)
vbahl2 2:d0516dc143b1 38 #define UL64(x) x##ui64
vbahl2 2:d0516dc143b1 39 #else
vbahl2 2:d0516dc143b1 40 #define UL64(x) x##ULL
vbahl2 2:d0516dc143b1 41 #endif
vbahl2 2:d0516dc143b1 42
vbahl2 2:d0516dc143b1 43 #include <string.h>
vbahl2 2:d0516dc143b1 44
vbahl2 2:d0516dc143b1 45 #if defined(MBEDTLS_SELF_TEST)
vbahl2 2:d0516dc143b1 46 #if defined(MBEDTLS_PLATFORM_C)
vbahl2 2:d0516dc143b1 47 #include <stdio.h>
vbahl2 2:d0516dc143b1 48 #include <stdlib.h>
vbahl2 2:d0516dc143b1 49 #define mbedtls_printf printf
vbahl2 2:d0516dc143b1 50 #define mbedtls_calloc calloc
vbahl2 2:d0516dc143b1 51 #define mbedtls_free free
vbahl2 2:d0516dc143b1 52 #endif /* MBEDTLS_PLATFORM_C */
vbahl2 2:d0516dc143b1 53 #endif /* MBEDTLS_SELF_TEST */
vbahl2 2:d0516dc143b1 54
vbahl2 2:d0516dc143b1 55 #if !defined(MBEDTLS_SHA512_ALT)
vbahl2 2:d0516dc143b1 56
vbahl2 2:d0516dc143b1 57 /* Implementation that should never be optimized out by the compiler */
vbahl2 2:d0516dc143b1 58 static void mbedtls_zeroize( void *v, size_t n ) {
vbahl2 2:d0516dc143b1 59 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
vbahl2 2:d0516dc143b1 60 }
vbahl2 2:d0516dc143b1 61
vbahl2 2:d0516dc143b1 62 /*
vbahl2 2:d0516dc143b1 63 * 64-bit integer manipulation macros (big endian)
vbahl2 2:d0516dc143b1 64 */
vbahl2 2:d0516dc143b1 65 #ifndef GET_UINT64_BE
vbahl2 2:d0516dc143b1 66 #define GET_UINT64_BE(n,b,i) \
vbahl2 2:d0516dc143b1 67 { \
vbahl2 2:d0516dc143b1 68 (n) = ( (uint64_t) (b)[(i) ] << 56 ) \
vbahl2 2:d0516dc143b1 69 | ( (uint64_t) (b)[(i) + 1] << 48 ) \
vbahl2 2:d0516dc143b1 70 | ( (uint64_t) (b)[(i) + 2] << 40 ) \
vbahl2 2:d0516dc143b1 71 | ( (uint64_t) (b)[(i) + 3] << 32 ) \
vbahl2 2:d0516dc143b1 72 | ( (uint64_t) (b)[(i) + 4] << 24 ) \
vbahl2 2:d0516dc143b1 73 | ( (uint64_t) (b)[(i) + 5] << 16 ) \
vbahl2 2:d0516dc143b1 74 | ( (uint64_t) (b)[(i) + 6] << 8 ) \
vbahl2 2:d0516dc143b1 75 | ( (uint64_t) (b)[(i) + 7] ); \
vbahl2 2:d0516dc143b1 76 }
vbahl2 2:d0516dc143b1 77 #endif /* GET_UINT64_BE */
vbahl2 2:d0516dc143b1 78
vbahl2 2:d0516dc143b1 79 #ifndef PUT_UINT64_BE
vbahl2 2:d0516dc143b1 80 #define PUT_UINT64_BE(n,b,i) \
vbahl2 2:d0516dc143b1 81 { \
vbahl2 2:d0516dc143b1 82 (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
vbahl2 2:d0516dc143b1 83 (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
vbahl2 2:d0516dc143b1 84 (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
vbahl2 2:d0516dc143b1 85 (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
vbahl2 2:d0516dc143b1 86 (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
vbahl2 2:d0516dc143b1 87 (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
vbahl2 2:d0516dc143b1 88 (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
vbahl2 2:d0516dc143b1 89 (b)[(i) + 7] = (unsigned char) ( (n) ); \
vbahl2 2:d0516dc143b1 90 }
vbahl2 2:d0516dc143b1 91 #endif /* PUT_UINT64_BE */
vbahl2 2:d0516dc143b1 92
vbahl2 2:d0516dc143b1 93 void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
vbahl2 2:d0516dc143b1 94 {
vbahl2 2:d0516dc143b1 95 memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
vbahl2 2:d0516dc143b1 96 }
vbahl2 2:d0516dc143b1 97
vbahl2 2:d0516dc143b1 98 void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
vbahl2 2:d0516dc143b1 99 {
vbahl2 2:d0516dc143b1 100 if( ctx == NULL )
vbahl2 2:d0516dc143b1 101 return;
vbahl2 2:d0516dc143b1 102
vbahl2 2:d0516dc143b1 103 mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
vbahl2 2:d0516dc143b1 104 }
vbahl2 2:d0516dc143b1 105
vbahl2 2:d0516dc143b1 106 void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
vbahl2 2:d0516dc143b1 107 const mbedtls_sha512_context *src )
vbahl2 2:d0516dc143b1 108 {
vbahl2 2:d0516dc143b1 109 *dst = *src;
vbahl2 2:d0516dc143b1 110 }
vbahl2 2:d0516dc143b1 111
vbahl2 2:d0516dc143b1 112 /*
vbahl2 2:d0516dc143b1 113 * SHA-512 context setup
vbahl2 2:d0516dc143b1 114 */
vbahl2 2:d0516dc143b1 115 void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 )
vbahl2 2:d0516dc143b1 116 {
vbahl2 2:d0516dc143b1 117 ctx->total[0] = 0;
vbahl2 2:d0516dc143b1 118 ctx->total[1] = 0;
vbahl2 2:d0516dc143b1 119
vbahl2 2:d0516dc143b1 120 if( is384 == 0 )
vbahl2 2:d0516dc143b1 121 {
vbahl2 2:d0516dc143b1 122 /* SHA-512 */
vbahl2 2:d0516dc143b1 123 ctx->state[0] = UL64(0x6A09E667F3BCC908);
vbahl2 2:d0516dc143b1 124 ctx->state[1] = UL64(0xBB67AE8584CAA73B);
vbahl2 2:d0516dc143b1 125 ctx->state[2] = UL64(0x3C6EF372FE94F82B);
vbahl2 2:d0516dc143b1 126 ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
vbahl2 2:d0516dc143b1 127 ctx->state[4] = UL64(0x510E527FADE682D1);
vbahl2 2:d0516dc143b1 128 ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
vbahl2 2:d0516dc143b1 129 ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
vbahl2 2:d0516dc143b1 130 ctx->state[7] = UL64(0x5BE0CD19137E2179);
vbahl2 2:d0516dc143b1 131 }
vbahl2 2:d0516dc143b1 132 else
vbahl2 2:d0516dc143b1 133 {
vbahl2 2:d0516dc143b1 134 /* SHA-384 */
vbahl2 2:d0516dc143b1 135 ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
vbahl2 2:d0516dc143b1 136 ctx->state[1] = UL64(0x629A292A367CD507);
vbahl2 2:d0516dc143b1 137 ctx->state[2] = UL64(0x9159015A3070DD17);
vbahl2 2:d0516dc143b1 138 ctx->state[3] = UL64(0x152FECD8F70E5939);
vbahl2 2:d0516dc143b1 139 ctx->state[4] = UL64(0x67332667FFC00B31);
vbahl2 2:d0516dc143b1 140 ctx->state[5] = UL64(0x8EB44A8768581511);
vbahl2 2:d0516dc143b1 141 ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
vbahl2 2:d0516dc143b1 142 ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
vbahl2 2:d0516dc143b1 143 }
vbahl2 2:d0516dc143b1 144
vbahl2 2:d0516dc143b1 145 ctx->is384 = is384;
vbahl2 2:d0516dc143b1 146 }
vbahl2 2:d0516dc143b1 147
vbahl2 2:d0516dc143b1 148 #if !defined(MBEDTLS_SHA512_PROCESS_ALT)
vbahl2 2:d0516dc143b1 149
vbahl2 2:d0516dc143b1 150 /*
vbahl2 2:d0516dc143b1 151 * Round constants
vbahl2 2:d0516dc143b1 152 */
vbahl2 2:d0516dc143b1 153 static const uint64_t K[80] =
vbahl2 2:d0516dc143b1 154 {
vbahl2 2:d0516dc143b1 155 UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
vbahl2 2:d0516dc143b1 156 UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
vbahl2 2:d0516dc143b1 157 UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
vbahl2 2:d0516dc143b1 158 UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
vbahl2 2:d0516dc143b1 159 UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
vbahl2 2:d0516dc143b1 160 UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
vbahl2 2:d0516dc143b1 161 UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
vbahl2 2:d0516dc143b1 162 UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
vbahl2 2:d0516dc143b1 163 UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
vbahl2 2:d0516dc143b1 164 UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
vbahl2 2:d0516dc143b1 165 UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
vbahl2 2:d0516dc143b1 166 UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
vbahl2 2:d0516dc143b1 167 UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
vbahl2 2:d0516dc143b1 168 UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
vbahl2 2:d0516dc143b1 169 UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
vbahl2 2:d0516dc143b1 170 UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
vbahl2 2:d0516dc143b1 171 UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
vbahl2 2:d0516dc143b1 172 UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
vbahl2 2:d0516dc143b1 173 UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
vbahl2 2:d0516dc143b1 174 UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
vbahl2 2:d0516dc143b1 175 UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
vbahl2 2:d0516dc143b1 176 UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
vbahl2 2:d0516dc143b1 177 UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
vbahl2 2:d0516dc143b1 178 UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
vbahl2 2:d0516dc143b1 179 UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
vbahl2 2:d0516dc143b1 180 UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
vbahl2 2:d0516dc143b1 181 UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
vbahl2 2:d0516dc143b1 182 UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
vbahl2 2:d0516dc143b1 183 UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
vbahl2 2:d0516dc143b1 184 UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
vbahl2 2:d0516dc143b1 185 UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
vbahl2 2:d0516dc143b1 186 UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
vbahl2 2:d0516dc143b1 187 UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
vbahl2 2:d0516dc143b1 188 UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
vbahl2 2:d0516dc143b1 189 UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
vbahl2 2:d0516dc143b1 190 UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
vbahl2 2:d0516dc143b1 191 UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
vbahl2 2:d0516dc143b1 192 UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
vbahl2 2:d0516dc143b1 193 UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
vbahl2 2:d0516dc143b1 194 UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
vbahl2 2:d0516dc143b1 195 };
vbahl2 2:d0516dc143b1 196
vbahl2 2:d0516dc143b1 197 void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] )
vbahl2 2:d0516dc143b1 198 {
vbahl2 2:d0516dc143b1 199 int i;
vbahl2 2:d0516dc143b1 200 uint64_t temp1, temp2, W[80];
vbahl2 2:d0516dc143b1 201 uint64_t A, B, C, D, E, F, G, H;
vbahl2 2:d0516dc143b1 202
vbahl2 2:d0516dc143b1 203 #define SHR(x,n) (x >> n)
vbahl2 2:d0516dc143b1 204 #define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
vbahl2 2:d0516dc143b1 205
vbahl2 2:d0516dc143b1 206 #define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
vbahl2 2:d0516dc143b1 207 #define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
vbahl2 2:d0516dc143b1 208
vbahl2 2:d0516dc143b1 209 #define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
vbahl2 2:d0516dc143b1 210 #define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
vbahl2 2:d0516dc143b1 211
vbahl2 2:d0516dc143b1 212 #define F0(x,y,z) ((x & y) | (z & (x | y)))
vbahl2 2:d0516dc143b1 213 #define F1(x,y,z) (z ^ (x & (y ^ z)))
vbahl2 2:d0516dc143b1 214
vbahl2 2:d0516dc143b1 215 #define P(a,b,c,d,e,f,g,h,x,K) \
vbahl2 2:d0516dc143b1 216 { \
vbahl2 2:d0516dc143b1 217 temp1 = h + S3(e) + F1(e,f,g) + K + x; \
vbahl2 2:d0516dc143b1 218 temp2 = S2(a) + F0(a,b,c); \
vbahl2 2:d0516dc143b1 219 d += temp1; h = temp1 + temp2; \
vbahl2 2:d0516dc143b1 220 }
vbahl2 2:d0516dc143b1 221
vbahl2 2:d0516dc143b1 222 for( i = 0; i < 16; i++ )
vbahl2 2:d0516dc143b1 223 {
vbahl2 2:d0516dc143b1 224 GET_UINT64_BE( W[i], data, i << 3 );
vbahl2 2:d0516dc143b1 225 }
vbahl2 2:d0516dc143b1 226
vbahl2 2:d0516dc143b1 227 for( ; i < 80; i++ )
vbahl2 2:d0516dc143b1 228 {
vbahl2 2:d0516dc143b1 229 W[i] = S1(W[i - 2]) + W[i - 7] +
vbahl2 2:d0516dc143b1 230 S0(W[i - 15]) + W[i - 16];
vbahl2 2:d0516dc143b1 231 }
vbahl2 2:d0516dc143b1 232
vbahl2 2:d0516dc143b1 233 A = ctx->state[0];
vbahl2 2:d0516dc143b1 234 B = ctx->state[1];
vbahl2 2:d0516dc143b1 235 C = ctx->state[2];
vbahl2 2:d0516dc143b1 236 D = ctx->state[3];
vbahl2 2:d0516dc143b1 237 E = ctx->state[4];
vbahl2 2:d0516dc143b1 238 F = ctx->state[5];
vbahl2 2:d0516dc143b1 239 G = ctx->state[6];
vbahl2 2:d0516dc143b1 240 H = ctx->state[7];
vbahl2 2:d0516dc143b1 241 i = 0;
vbahl2 2:d0516dc143b1 242
vbahl2 2:d0516dc143b1 243 do
vbahl2 2:d0516dc143b1 244 {
vbahl2 2:d0516dc143b1 245 P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 246 P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 247 P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 248 P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 249 P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 250 P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 251 P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 252 P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
vbahl2 2:d0516dc143b1 253 }
vbahl2 2:d0516dc143b1 254 while( i < 80 );
vbahl2 2:d0516dc143b1 255
vbahl2 2:d0516dc143b1 256 ctx->state[0] += A;
vbahl2 2:d0516dc143b1 257 ctx->state[1] += B;
vbahl2 2:d0516dc143b1 258 ctx->state[2] += C;
vbahl2 2:d0516dc143b1 259 ctx->state[3] += D;
vbahl2 2:d0516dc143b1 260 ctx->state[4] += E;
vbahl2 2:d0516dc143b1 261 ctx->state[5] += F;
vbahl2 2:d0516dc143b1 262 ctx->state[6] += G;
vbahl2 2:d0516dc143b1 263 ctx->state[7] += H;
vbahl2 2:d0516dc143b1 264 }
vbahl2 2:d0516dc143b1 265 #endif /* !MBEDTLS_SHA512_PROCESS_ALT */
vbahl2 2:d0516dc143b1 266
vbahl2 2:d0516dc143b1 267 /*
vbahl2 2:d0516dc143b1 268 * SHA-512 process buffer
vbahl2 2:d0516dc143b1 269 */
vbahl2 2:d0516dc143b1 270 void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input,
vbahl2 2:d0516dc143b1 271 size_t ilen )
vbahl2 2:d0516dc143b1 272 {
vbahl2 2:d0516dc143b1 273 size_t fill;
vbahl2 2:d0516dc143b1 274 unsigned int left;
vbahl2 2:d0516dc143b1 275
vbahl2 2:d0516dc143b1 276 if( ilen == 0 )
vbahl2 2:d0516dc143b1 277 return;
vbahl2 2:d0516dc143b1 278
vbahl2 2:d0516dc143b1 279 left = (unsigned int) (ctx->total[0] & 0x7F);
vbahl2 2:d0516dc143b1 280 fill = 128 - left;
vbahl2 2:d0516dc143b1 281
vbahl2 2:d0516dc143b1 282 ctx->total[0] += (uint64_t) ilen;
vbahl2 2:d0516dc143b1 283
vbahl2 2:d0516dc143b1 284 if( ctx->total[0] < (uint64_t) ilen )
vbahl2 2:d0516dc143b1 285 ctx->total[1]++;
vbahl2 2:d0516dc143b1 286
vbahl2 2:d0516dc143b1 287 if( left && ilen >= fill )
vbahl2 2:d0516dc143b1 288 {
vbahl2 2:d0516dc143b1 289 memcpy( (void *) (ctx->buffer + left), input, fill );
vbahl2 2:d0516dc143b1 290 mbedtls_sha512_process( ctx, ctx->buffer );
vbahl2 2:d0516dc143b1 291 input += fill;
vbahl2 2:d0516dc143b1 292 ilen -= fill;
vbahl2 2:d0516dc143b1 293 left = 0;
vbahl2 2:d0516dc143b1 294 }
vbahl2 2:d0516dc143b1 295
vbahl2 2:d0516dc143b1 296 while( ilen >= 128 )
vbahl2 2:d0516dc143b1 297 {
vbahl2 2:d0516dc143b1 298 mbedtls_sha512_process( ctx, input );
vbahl2 2:d0516dc143b1 299 input += 128;
vbahl2 2:d0516dc143b1 300 ilen -= 128;
vbahl2 2:d0516dc143b1 301 }
vbahl2 2:d0516dc143b1 302
vbahl2 2:d0516dc143b1 303 if( ilen > 0 )
vbahl2 2:d0516dc143b1 304 memcpy( (void *) (ctx->buffer + left), input, ilen );
vbahl2 2:d0516dc143b1 305 }
vbahl2 2:d0516dc143b1 306
vbahl2 2:d0516dc143b1 307 static const unsigned char sha512_padding[128] =
vbahl2 2:d0516dc143b1 308 {
vbahl2 2:d0516dc143b1 309 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 310 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 311 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 312 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
vbahl2 2:d0516dc143b1 316 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
vbahl2 2:d0516dc143b1 317 };
vbahl2 2:d0516dc143b1 318
vbahl2 2:d0516dc143b1 319 /*
vbahl2 2:d0516dc143b1 320 * SHA-512 final digest
vbahl2 2:d0516dc143b1 321 */
vbahl2 2:d0516dc143b1 322 void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] )
vbahl2 2:d0516dc143b1 323 {
vbahl2 2:d0516dc143b1 324 size_t last, padn;
vbahl2 2:d0516dc143b1 325 uint64_t high, low;
vbahl2 2:d0516dc143b1 326 unsigned char msglen[16];
vbahl2 2:d0516dc143b1 327
vbahl2 2:d0516dc143b1 328 high = ( ctx->total[0] >> 61 )
vbahl2 2:d0516dc143b1 329 | ( ctx->total[1] << 3 );
vbahl2 2:d0516dc143b1 330 low = ( ctx->total[0] << 3 );
vbahl2 2:d0516dc143b1 331
vbahl2 2:d0516dc143b1 332 PUT_UINT64_BE( high, msglen, 0 );
vbahl2 2:d0516dc143b1 333 PUT_UINT64_BE( low, msglen, 8 );
vbahl2 2:d0516dc143b1 334
vbahl2 2:d0516dc143b1 335 last = (size_t)( ctx->total[0] & 0x7F );
vbahl2 2:d0516dc143b1 336 padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
vbahl2 2:d0516dc143b1 337
vbahl2 2:d0516dc143b1 338 mbedtls_sha512_update( ctx, sha512_padding, padn );
vbahl2 2:d0516dc143b1 339 mbedtls_sha512_update( ctx, msglen, 16 );
vbahl2 2:d0516dc143b1 340
vbahl2 2:d0516dc143b1 341 PUT_UINT64_BE( ctx->state[0], output, 0 );
vbahl2 2:d0516dc143b1 342 PUT_UINT64_BE( ctx->state[1], output, 8 );
vbahl2 2:d0516dc143b1 343 PUT_UINT64_BE( ctx->state[2], output, 16 );
vbahl2 2:d0516dc143b1 344 PUT_UINT64_BE( ctx->state[3], output, 24 );
vbahl2 2:d0516dc143b1 345 PUT_UINT64_BE( ctx->state[4], output, 32 );
vbahl2 2:d0516dc143b1 346 PUT_UINT64_BE( ctx->state[5], output, 40 );
vbahl2 2:d0516dc143b1 347
vbahl2 2:d0516dc143b1 348 if( ctx->is384 == 0 )
vbahl2 2:d0516dc143b1 349 {
vbahl2 2:d0516dc143b1 350 PUT_UINT64_BE( ctx->state[6], output, 48 );
vbahl2 2:d0516dc143b1 351 PUT_UINT64_BE( ctx->state[7], output, 56 );
vbahl2 2:d0516dc143b1 352 }
vbahl2 2:d0516dc143b1 353 }
vbahl2 2:d0516dc143b1 354
vbahl2 2:d0516dc143b1 355 #endif /* !MBEDTLS_SHA512_ALT */
vbahl2 2:d0516dc143b1 356
vbahl2 2:d0516dc143b1 357 /*
vbahl2 2:d0516dc143b1 358 * output = SHA-512( input buffer )
vbahl2 2:d0516dc143b1 359 */
vbahl2 2:d0516dc143b1 360 void mbedtls_sha512( const unsigned char *input, size_t ilen,
vbahl2 2:d0516dc143b1 361 unsigned char output[64], int is384 )
vbahl2 2:d0516dc143b1 362 {
vbahl2 2:d0516dc143b1 363 mbedtls_sha512_context ctx;
vbahl2 2:d0516dc143b1 364
vbahl2 2:d0516dc143b1 365 mbedtls_sha512_init( &ctx );
vbahl2 2:d0516dc143b1 366 mbedtls_sha512_starts( &ctx, is384 );
vbahl2 2:d0516dc143b1 367 mbedtls_sha512_update( &ctx, input, ilen );
vbahl2 2:d0516dc143b1 368 mbedtls_sha512_finish( &ctx, output );
vbahl2 2:d0516dc143b1 369 mbedtls_sha512_free( &ctx );
vbahl2 2:d0516dc143b1 370 }
vbahl2 2:d0516dc143b1 371
vbahl2 2:d0516dc143b1 372 #if defined(MBEDTLS_SELF_TEST)
vbahl2 2:d0516dc143b1 373
vbahl2 2:d0516dc143b1 374 /*
vbahl2 2:d0516dc143b1 375 * FIPS-180-2 test vectors
vbahl2 2:d0516dc143b1 376 */
vbahl2 2:d0516dc143b1 377 static const unsigned char sha512_test_buf[3][113] =
vbahl2 2:d0516dc143b1 378 {
vbahl2 2:d0516dc143b1 379 { "abc" },
vbahl2 2:d0516dc143b1 380 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
vbahl2 2:d0516dc143b1 381 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
vbahl2 2:d0516dc143b1 382 { "" }
vbahl2 2:d0516dc143b1 383 };
vbahl2 2:d0516dc143b1 384
vbahl2 2:d0516dc143b1 385 static const int sha512_test_buflen[3] =
vbahl2 2:d0516dc143b1 386 {
vbahl2 2:d0516dc143b1 387 3, 112, 1000
vbahl2 2:d0516dc143b1 388 };
vbahl2 2:d0516dc143b1 389
vbahl2 2:d0516dc143b1 390 static const unsigned char sha512_test_sum[6][64] =
vbahl2 2:d0516dc143b1 391 {
vbahl2 2:d0516dc143b1 392 /*
vbahl2 2:d0516dc143b1 393 * SHA-384 test vectors
vbahl2 2:d0516dc143b1 394 */
vbahl2 2:d0516dc143b1 395 { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
vbahl2 2:d0516dc143b1 396 0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
vbahl2 2:d0516dc143b1 397 0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
vbahl2 2:d0516dc143b1 398 0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
vbahl2 2:d0516dc143b1 399 0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
vbahl2 2:d0516dc143b1 400 0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
vbahl2 2:d0516dc143b1 401 { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
vbahl2 2:d0516dc143b1 402 0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
vbahl2 2:d0516dc143b1 403 0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
vbahl2 2:d0516dc143b1 404 0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
vbahl2 2:d0516dc143b1 405 0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
vbahl2 2:d0516dc143b1 406 0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
vbahl2 2:d0516dc143b1 407 { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
vbahl2 2:d0516dc143b1 408 0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
vbahl2 2:d0516dc143b1 409 0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
vbahl2 2:d0516dc143b1 410 0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
vbahl2 2:d0516dc143b1 411 0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
vbahl2 2:d0516dc143b1 412 0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
vbahl2 2:d0516dc143b1 413
vbahl2 2:d0516dc143b1 414 /*
vbahl2 2:d0516dc143b1 415 * SHA-512 test vectors
vbahl2 2:d0516dc143b1 416 */
vbahl2 2:d0516dc143b1 417 { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
vbahl2 2:d0516dc143b1 418 0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
vbahl2 2:d0516dc143b1 419 0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
vbahl2 2:d0516dc143b1 420 0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
vbahl2 2:d0516dc143b1 421 0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
vbahl2 2:d0516dc143b1 422 0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
vbahl2 2:d0516dc143b1 423 0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
vbahl2 2:d0516dc143b1 424 0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
vbahl2 2:d0516dc143b1 425 { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
vbahl2 2:d0516dc143b1 426 0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
vbahl2 2:d0516dc143b1 427 0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
vbahl2 2:d0516dc143b1 428 0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
vbahl2 2:d0516dc143b1 429 0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
vbahl2 2:d0516dc143b1 430 0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
vbahl2 2:d0516dc143b1 431 0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
vbahl2 2:d0516dc143b1 432 0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
vbahl2 2:d0516dc143b1 433 { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
vbahl2 2:d0516dc143b1 434 0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
vbahl2 2:d0516dc143b1 435 0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
vbahl2 2:d0516dc143b1 436 0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
vbahl2 2:d0516dc143b1 437 0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
vbahl2 2:d0516dc143b1 438 0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
vbahl2 2:d0516dc143b1 439 0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
vbahl2 2:d0516dc143b1 440 0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
vbahl2 2:d0516dc143b1 441 };
vbahl2 2:d0516dc143b1 442
vbahl2 2:d0516dc143b1 443 /*
vbahl2 2:d0516dc143b1 444 * Checkup routine
vbahl2 2:d0516dc143b1 445 */
vbahl2 2:d0516dc143b1 446 int mbedtls_sha512_self_test( int verbose )
vbahl2 2:d0516dc143b1 447 {
vbahl2 2:d0516dc143b1 448 int i, j, k, buflen, ret = 0;
vbahl2 2:d0516dc143b1 449 unsigned char *buf;
vbahl2 2:d0516dc143b1 450 unsigned char sha512sum[64];
vbahl2 2:d0516dc143b1 451 mbedtls_sha512_context ctx;
vbahl2 2:d0516dc143b1 452
vbahl2 2:d0516dc143b1 453 buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
vbahl2 2:d0516dc143b1 454 if( NULL == buf )
vbahl2 2:d0516dc143b1 455 {
vbahl2 2:d0516dc143b1 456 if( verbose != 0 )
vbahl2 2:d0516dc143b1 457 mbedtls_printf( "Buffer allocation failed\n" );
vbahl2 2:d0516dc143b1 458
vbahl2 2:d0516dc143b1 459 return( 1 );
vbahl2 2:d0516dc143b1 460 }
vbahl2 2:d0516dc143b1 461
vbahl2 2:d0516dc143b1 462 mbedtls_sha512_init( &ctx );
vbahl2 2:d0516dc143b1 463
vbahl2 2:d0516dc143b1 464 for( i = 0; i < 6; i++ )
vbahl2 2:d0516dc143b1 465 {
vbahl2 2:d0516dc143b1 466 j = i % 3;
vbahl2 2:d0516dc143b1 467 k = i < 3;
vbahl2 2:d0516dc143b1 468
vbahl2 2:d0516dc143b1 469 if( verbose != 0 )
vbahl2 2:d0516dc143b1 470 mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
vbahl2 2:d0516dc143b1 471
vbahl2 2:d0516dc143b1 472 mbedtls_sha512_starts( &ctx, k );
vbahl2 2:d0516dc143b1 473
vbahl2 2:d0516dc143b1 474 if( j == 2 )
vbahl2 2:d0516dc143b1 475 {
vbahl2 2:d0516dc143b1 476 memset( buf, 'a', buflen = 1000 );
vbahl2 2:d0516dc143b1 477
vbahl2 2:d0516dc143b1 478 for( j = 0; j < 1000; j++ )
vbahl2 2:d0516dc143b1 479 mbedtls_sha512_update( &ctx, buf, buflen );
vbahl2 2:d0516dc143b1 480 }
vbahl2 2:d0516dc143b1 481 else
vbahl2 2:d0516dc143b1 482 mbedtls_sha512_update( &ctx, sha512_test_buf[j],
vbahl2 2:d0516dc143b1 483 sha512_test_buflen[j] );
vbahl2 2:d0516dc143b1 484
vbahl2 2:d0516dc143b1 485 mbedtls_sha512_finish( &ctx, sha512sum );
vbahl2 2:d0516dc143b1 486
vbahl2 2:d0516dc143b1 487 if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
vbahl2 2:d0516dc143b1 488 {
vbahl2 2:d0516dc143b1 489 if( verbose != 0 )
vbahl2 2:d0516dc143b1 490 mbedtls_printf( "failed\n" );
vbahl2 2:d0516dc143b1 491
vbahl2 2:d0516dc143b1 492 ret = 1;
vbahl2 2:d0516dc143b1 493 goto exit;
vbahl2 2:d0516dc143b1 494 }
vbahl2 2:d0516dc143b1 495
vbahl2 2:d0516dc143b1 496 if( verbose != 0 )
vbahl2 2:d0516dc143b1 497 mbedtls_printf( "passed\n" );
vbahl2 2:d0516dc143b1 498 }
vbahl2 2:d0516dc143b1 499
vbahl2 2:d0516dc143b1 500 if( verbose != 0 )
vbahl2 2:d0516dc143b1 501 mbedtls_printf( "\n" );
vbahl2 2:d0516dc143b1 502
vbahl2 2:d0516dc143b1 503 exit:
vbahl2 2:d0516dc143b1 504 mbedtls_sha512_free( &ctx );
vbahl2 2:d0516dc143b1 505 mbedtls_free( buf );
vbahl2 2:d0516dc143b1 506
vbahl2 2:d0516dc143b1 507 return( ret );
vbahl2 2:d0516dc143b1 508 }
vbahl2 2:d0516dc143b1 509
vbahl2 2:d0516dc143b1 510 #endif /* MBEDTLS_SELF_TEST */
vbahl2 2:d0516dc143b1 511
vbahl2 2:d0516dc143b1 512 //#endif /* MBEDTLS_SHA512_C */