Nitin Shukla / LED_Demo

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Dependencies:   MAX44000 nexpaq_mdk

Fork of LED_Demo by Maxim nexpaq

mbd_os/features/mbedtls/src/sha512.c@7:3a65ef12ba31, 2016-11-04 (annotated)

Committer:
nitsshukla
Date:
Fri Nov 04 12:06:04 2016 +0000
Revision:
7:3a65ef12ba31
Parent:
1:55a6170b404f 
kghj;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 /*
nexpaq 1:55a6170b404f 2 * FIPS-180-2 compliant SHA-384/512 implementation
nexpaq 1:55a6170b404f 3 *
nexpaq 1:55a6170b404f 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
nexpaq 1:55a6170b404f 5 * SPDX-License-Identifier: Apache-2.0
nexpaq 1:55a6170b404f 6 *
nexpaq 1:55a6170b404f 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
nexpaq 1:55a6170b404f 8 * not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 9 * You may obtain a copy of the License at
nexpaq 1:55a6170b404f 10 *
nexpaq 1:55a6170b404f 11 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 12 *
nexpaq 1:55a6170b404f 13 * Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
nexpaq 1:55a6170b404f 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 16 * See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 17 * limitations under the License.
nexpaq 1:55a6170b404f 18 *
nexpaq 1:55a6170b404f 19 * This file is part of mbed TLS (https://tls.mbed.org)
nexpaq 1:55a6170b404f 20 */
nexpaq 1:55a6170b404f 21 /*
nexpaq 1:55a6170b404f 22 * The SHA-512 Secure Hash Standard was published by NIST in 2002.
nexpaq 1:55a6170b404f 23 *
nexpaq 1:55a6170b404f 24 * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
nexpaq 1:55a6170b404f 25 */
nexpaq 1:55a6170b404f 26
nexpaq 1:55a6170b404f 27 #if !defined(MBEDTLS_CONFIG_FILE)
nexpaq 1:55a6170b404f 28 #include "mbedtls/config.h"
nexpaq 1:55a6170b404f 29 #else
nexpaq 1:55a6170b404f 30 #include MBEDTLS_CONFIG_FILE
nexpaq 1:55a6170b404f 31 #endif
nexpaq 1:55a6170b404f 32
nexpaq 1:55a6170b404f 33 #if defined(MBEDTLS_SHA512_C)
nexpaq 1:55a6170b404f 34
nexpaq 1:55a6170b404f 35 #include "mbedtls/sha512.h"
nexpaq 1:55a6170b404f 36
nexpaq 1:55a6170b404f 37 #if defined(_MSC_VER) || defined(__WATCOMC__)
nexpaq 1:55a6170b404f 38 #define UL64(x) x##ui64
nexpaq 1:55a6170b404f 39 #else
nexpaq 1:55a6170b404f 40 #define UL64(x) x##ULL
nexpaq 1:55a6170b404f 41 #endif
nexpaq 1:55a6170b404f 42
nexpaq 1:55a6170b404f 43 #include <string.h>
nexpaq 1:55a6170b404f 44
nexpaq 1:55a6170b404f 45 #if defined(MBEDTLS_SELF_TEST)
nexpaq 1:55a6170b404f 46 #if defined(MBEDTLS_PLATFORM_C)
nexpaq 1:55a6170b404f 47 #include "mbedtls/platform.h"
nexpaq 1:55a6170b404f 48 #else
nexpaq 1:55a6170b404f 49 #include <stdio.h>
nexpaq 1:55a6170b404f 50 #define mbedtls_printf printf
nexpaq 1:55a6170b404f 51 #endif /* MBEDTLS_PLATFORM_C */
nexpaq 1:55a6170b404f 52 #endif /* MBEDTLS_SELF_TEST */
nexpaq 1:55a6170b404f 53
nexpaq 1:55a6170b404f 54 #if !defined(MBEDTLS_SHA512_ALT)
nexpaq 1:55a6170b404f 55
nexpaq 1:55a6170b404f 56 /* Implementation that should never be optimized out by the compiler */
nexpaq 1:55a6170b404f 57 static void mbedtls_zeroize( void *v, size_t n ) {
nexpaq 1:55a6170b404f 58 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
nexpaq 1:55a6170b404f 59 }
nexpaq 1:55a6170b404f 60
nexpaq 1:55a6170b404f 61 /*
nexpaq 1:55a6170b404f 62 * 64-bit integer manipulation macros (big endian)
nexpaq 1:55a6170b404f 63 */
nexpaq 1:55a6170b404f 64 #ifndef GET_UINT64_BE
nexpaq 1:55a6170b404f 65 #define GET_UINT64_BE(n,b,i) \
nexpaq 1:55a6170b404f 66 { \
nexpaq 1:55a6170b404f 67 (n) = ( (uint64_t) (b)[(i) ] << 56 ) \
nexpaq 1:55a6170b404f 68 | ( (uint64_t) (b)[(i) + 1] << 48 ) \
nexpaq 1:55a6170b404f 69 | ( (uint64_t) (b)[(i) + 2] << 40 ) \
nexpaq 1:55a6170b404f 70 | ( (uint64_t) (b)[(i) + 3] << 32 ) \
nexpaq 1:55a6170b404f 71 | ( (uint64_t) (b)[(i) + 4] << 24 ) \
nexpaq 1:55a6170b404f 72 | ( (uint64_t) (b)[(i) + 5] << 16 ) \
nexpaq 1:55a6170b404f 73 | ( (uint64_t) (b)[(i) + 6] << 8 ) \
nexpaq 1:55a6170b404f 74 | ( (uint64_t) (b)[(i) + 7] ); \
nexpaq 1:55a6170b404f 75 }
nexpaq 1:55a6170b404f 76 #endif /* GET_UINT64_BE */
nexpaq 1:55a6170b404f 77
nexpaq 1:55a6170b404f 78 #ifndef PUT_UINT64_BE
nexpaq 1:55a6170b404f 79 #define PUT_UINT64_BE(n,b,i) \
nexpaq 1:55a6170b404f 80 { \
nexpaq 1:55a6170b404f 81 (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
nexpaq 1:55a6170b404f 82 (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
nexpaq 1:55a6170b404f 83 (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
nexpaq 1:55a6170b404f 84 (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
nexpaq 1:55a6170b404f 85 (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
nexpaq 1:55a6170b404f 86 (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
nexpaq 1:55a6170b404f 87 (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
nexpaq 1:55a6170b404f 88 (b)[(i) + 7] = (unsigned char) ( (n) ); \
nexpaq 1:55a6170b404f 89 }
nexpaq 1:55a6170b404f 90 #endif /* PUT_UINT64_BE */
nexpaq 1:55a6170b404f 91
nexpaq 1:55a6170b404f 92 void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
nexpaq 1:55a6170b404f 93 {
nexpaq 1:55a6170b404f 94 memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
nexpaq 1:55a6170b404f 95 }
nexpaq 1:55a6170b404f 96
nexpaq 1:55a6170b404f 97 void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
nexpaq 1:55a6170b404f 98 {
nexpaq 1:55a6170b404f 99 if( ctx == NULL )
nexpaq 1:55a6170b404f 100 return;
nexpaq 1:55a6170b404f 101
nexpaq 1:55a6170b404f 102 mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
nexpaq 1:55a6170b404f 103 }
nexpaq 1:55a6170b404f 104
nexpaq 1:55a6170b404f 105 void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
nexpaq 1:55a6170b404f 106 const mbedtls_sha512_context *src )
nexpaq 1:55a6170b404f 107 {
nexpaq 1:55a6170b404f 108 *dst = *src;
nexpaq 1:55a6170b404f 109 }
nexpaq 1:55a6170b404f 110
nexpaq 1:55a6170b404f 111 /*
nexpaq 1:55a6170b404f 112 * SHA-512 context setup
nexpaq 1:55a6170b404f 113 */
nexpaq 1:55a6170b404f 114 void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 )
nexpaq 1:55a6170b404f 115 {
nexpaq 1:55a6170b404f 116 ctx->total[0] = 0;
nexpaq 1:55a6170b404f 117 ctx->total[1] = 0;
nexpaq 1:55a6170b404f 118
nexpaq 1:55a6170b404f 119 if( is384 == 0 )
nexpaq 1:55a6170b404f 120 {
nexpaq 1:55a6170b404f 121 /* SHA-512 */
nexpaq 1:55a6170b404f 122 ctx->state[0] = UL64(0x6A09E667F3BCC908);
nexpaq 1:55a6170b404f 123 ctx->state[1] = UL64(0xBB67AE8584CAA73B);
nexpaq 1:55a6170b404f 124 ctx->state[2] = UL64(0x3C6EF372FE94F82B);
nexpaq 1:55a6170b404f 125 ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
nexpaq 1:55a6170b404f 126 ctx->state[4] = UL64(0x510E527FADE682D1);
nexpaq 1:55a6170b404f 127 ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
nexpaq 1:55a6170b404f 128 ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
nexpaq 1:55a6170b404f 129 ctx->state[7] = UL64(0x5BE0CD19137E2179);
nexpaq 1:55a6170b404f 130 }
nexpaq 1:55a6170b404f 131 else
nexpaq 1:55a6170b404f 132 {
nexpaq 1:55a6170b404f 133 /* SHA-384 */
nexpaq 1:55a6170b404f 134 ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
nexpaq 1:55a6170b404f 135 ctx->state[1] = UL64(0x629A292A367CD507);
nexpaq 1:55a6170b404f 136 ctx->state[2] = UL64(0x9159015A3070DD17);
nexpaq 1:55a6170b404f 137 ctx->state[3] = UL64(0x152FECD8F70E5939);
nexpaq 1:55a6170b404f 138 ctx->state[4] = UL64(0x67332667FFC00B31);
nexpaq 1:55a6170b404f 139 ctx->state[5] = UL64(0x8EB44A8768581511);
nexpaq 1:55a6170b404f 140 ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
nexpaq 1:55a6170b404f 141 ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
nexpaq 1:55a6170b404f 142 }
nexpaq 1:55a6170b404f 143
nexpaq 1:55a6170b404f 144 ctx->is384 = is384;
nexpaq 1:55a6170b404f 145 }
nexpaq 1:55a6170b404f 146
nexpaq 1:55a6170b404f 147 #if !defined(MBEDTLS_SHA512_PROCESS_ALT)
nexpaq 1:55a6170b404f 148
nexpaq 1:55a6170b404f 149 /*
nexpaq 1:55a6170b404f 150 * Round constants
nexpaq 1:55a6170b404f 151 */
nexpaq 1:55a6170b404f 152 static const uint64_t K[80] =
nexpaq 1:55a6170b404f 153 {
nexpaq 1:55a6170b404f 154 UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
nexpaq 1:55a6170b404f 155 UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
nexpaq 1:55a6170b404f 156 UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
nexpaq 1:55a6170b404f 157 UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
nexpaq 1:55a6170b404f 158 UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
nexpaq 1:55a6170b404f 159 UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
nexpaq 1:55a6170b404f 160 UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
nexpaq 1:55a6170b404f 161 UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
nexpaq 1:55a6170b404f 162 UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
nexpaq 1:55a6170b404f 163 UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
nexpaq 1:55a6170b404f 164 UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
nexpaq 1:55a6170b404f 165 UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
nexpaq 1:55a6170b404f 166 UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
nexpaq 1:55a6170b404f 167 UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
nexpaq 1:55a6170b404f 168 UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
nexpaq 1:55a6170b404f 169 UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
nexpaq 1:55a6170b404f 170 UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
nexpaq 1:55a6170b404f 171 UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
nexpaq 1:55a6170b404f 172 UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
nexpaq 1:55a6170b404f 173 UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
nexpaq 1:55a6170b404f 174 UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
nexpaq 1:55a6170b404f 175 UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
nexpaq 1:55a6170b404f 176 UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
nexpaq 1:55a6170b404f 177 UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
nexpaq 1:55a6170b404f 178 UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
nexpaq 1:55a6170b404f 179 UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
nexpaq 1:55a6170b404f 180 UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
nexpaq 1:55a6170b404f 181 UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
nexpaq 1:55a6170b404f 182 UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
nexpaq 1:55a6170b404f 183 UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
nexpaq 1:55a6170b404f 184 UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
nexpaq 1:55a6170b404f 185 UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
nexpaq 1:55a6170b404f 186 UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
nexpaq 1:55a6170b404f 187 UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
nexpaq 1:55a6170b404f 188 UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
nexpaq 1:55a6170b404f 189 UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
nexpaq 1:55a6170b404f 190 UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
nexpaq 1:55a6170b404f 191 UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
nexpaq 1:55a6170b404f 192 UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
nexpaq 1:55a6170b404f 193 UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
nexpaq 1:55a6170b404f 194 };
nexpaq 1:55a6170b404f 195
nexpaq 1:55a6170b404f 196 void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] )
nexpaq 1:55a6170b404f 197 {
nexpaq 1:55a6170b404f 198 int i;
nexpaq 1:55a6170b404f 199 uint64_t temp1, temp2, W[80];
nexpaq 1:55a6170b404f 200 uint64_t A, B, C, D, E, F, G, H;
nexpaq 1:55a6170b404f 201
nexpaq 1:55a6170b404f 202 #define SHR(x,n) (x >> n)
nexpaq 1:55a6170b404f 203 #define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
nexpaq 1:55a6170b404f 204
nexpaq 1:55a6170b404f 205 #define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
nexpaq 1:55a6170b404f 206 #define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
nexpaq 1:55a6170b404f 207
nexpaq 1:55a6170b404f 208 #define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
nexpaq 1:55a6170b404f 209 #define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
nexpaq 1:55a6170b404f 210
nexpaq 1:55a6170b404f 211 #define F0(x,y,z) ((x & y) | (z & (x | y)))
nexpaq 1:55a6170b404f 212 #define F1(x,y,z) (z ^ (x & (y ^ z)))
nexpaq 1:55a6170b404f 213
nexpaq 1:55a6170b404f 214 #define P(a,b,c,d,e,f,g,h,x,K) \
nexpaq 1:55a6170b404f 215 { \
nexpaq 1:55a6170b404f 216 temp1 = h + S3(e) + F1(e,f,g) + K + x; \
nexpaq 1:55a6170b404f 217 temp2 = S2(a) + F0(a,b,c); \
nexpaq 1:55a6170b404f 218 d += temp1; h = temp1 + temp2; \
nexpaq 1:55a6170b404f 219 }
nexpaq 1:55a6170b404f 220
nexpaq 1:55a6170b404f 221 for( i = 0; i < 16; i++ )
nexpaq 1:55a6170b404f 222 {
nexpaq 1:55a6170b404f 223 GET_UINT64_BE( W[i], data, i << 3 );
nexpaq 1:55a6170b404f 224 }
nexpaq 1:55a6170b404f 225
nexpaq 1:55a6170b404f 226 for( ; i < 80; i++ )
nexpaq 1:55a6170b404f 227 {
nexpaq 1:55a6170b404f 228 W[i] = S1(W[i - 2]) + W[i - 7] +
nexpaq 1:55a6170b404f 229 S0(W[i - 15]) + W[i - 16];
nexpaq 1:55a6170b404f 230 }
nexpaq 1:55a6170b404f 231
nexpaq 1:55a6170b404f 232 A = ctx->state[0];
nexpaq 1:55a6170b404f 233 B = ctx->state[1];
nexpaq 1:55a6170b404f 234 C = ctx->state[2];
nexpaq 1:55a6170b404f 235 D = ctx->state[3];
nexpaq 1:55a6170b404f 236 E = ctx->state[4];
nexpaq 1:55a6170b404f 237 F = ctx->state[5];
nexpaq 1:55a6170b404f 238 G = ctx->state[6];
nexpaq 1:55a6170b404f 239 H = ctx->state[7];
nexpaq 1:55a6170b404f 240 i = 0;
nexpaq 1:55a6170b404f 241
nexpaq 1:55a6170b404f 242 do
nexpaq 1:55a6170b404f 243 {
nexpaq 1:55a6170b404f 244 P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 245 P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 246 P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 247 P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 248 P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 249 P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 250 P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 251 P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
nexpaq 1:55a6170b404f 252 }
nexpaq 1:55a6170b404f 253 while( i < 80 );
nexpaq 1:55a6170b404f 254
nexpaq 1:55a6170b404f 255 ctx->state[0] += A;
nexpaq 1:55a6170b404f 256 ctx->state[1] += B;
nexpaq 1:55a6170b404f 257 ctx->state[2] += C;
nexpaq 1:55a6170b404f 258 ctx->state[3] += D;
nexpaq 1:55a6170b404f 259 ctx->state[4] += E;
nexpaq 1:55a6170b404f 260 ctx->state[5] += F;
nexpaq 1:55a6170b404f 261 ctx->state[6] += G;
nexpaq 1:55a6170b404f 262 ctx->state[7] += H;
nexpaq 1:55a6170b404f 263 }
nexpaq 1:55a6170b404f 264 #endif /* !MBEDTLS_SHA512_PROCESS_ALT */
nexpaq 1:55a6170b404f 265
nexpaq 1:55a6170b404f 266 /*
nexpaq 1:55a6170b404f 267 * SHA-512 process buffer
nexpaq 1:55a6170b404f 268 */
nexpaq 1:55a6170b404f 269 void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input,
nexpaq 1:55a6170b404f 270 size_t ilen )
nexpaq 1:55a6170b404f 271 {
nexpaq 1:55a6170b404f 272 size_t fill;
nexpaq 1:55a6170b404f 273 unsigned int left;
nexpaq 1:55a6170b404f 274
nexpaq 1:55a6170b404f 275 if( ilen == 0 )
nexpaq 1:55a6170b404f 276 return;
nexpaq 1:55a6170b404f 277
nexpaq 1:55a6170b404f 278 left = (unsigned int) (ctx->total[0] & 0x7F);
nexpaq 1:55a6170b404f 279 fill = 128 - left;
nexpaq 1:55a6170b404f 280
nexpaq 1:55a6170b404f 281 ctx->total[0] += (uint64_t) ilen;
nexpaq 1:55a6170b404f 282
nexpaq 1:55a6170b404f 283 if( ctx->total[0] < (uint64_t) ilen )
nexpaq 1:55a6170b404f 284 ctx->total[1]++;
nexpaq 1:55a6170b404f 285
nexpaq 1:55a6170b404f 286 if( left && ilen >= fill )
nexpaq 1:55a6170b404f 287 {
nexpaq 1:55a6170b404f 288 memcpy( (void *) (ctx->buffer + left), input, fill );
nexpaq 1:55a6170b404f 289 mbedtls_sha512_process( ctx, ctx->buffer );
nexpaq 1:55a6170b404f 290 input += fill;
nexpaq 1:55a6170b404f 291 ilen -= fill;
nexpaq 1:55a6170b404f 292 left = 0;
nexpaq 1:55a6170b404f 293 }
nexpaq 1:55a6170b404f 294
nexpaq 1:55a6170b404f 295 while( ilen >= 128 )
nexpaq 1:55a6170b404f 296 {
nexpaq 1:55a6170b404f 297 mbedtls_sha512_process( ctx, input );
nexpaq 1:55a6170b404f 298 input += 128;
nexpaq 1:55a6170b404f 299 ilen -= 128;
nexpaq 1:55a6170b404f 300 }
nexpaq 1:55a6170b404f 301
nexpaq 1:55a6170b404f 302 if( ilen > 0 )
nexpaq 1:55a6170b404f 303 memcpy( (void *) (ctx->buffer + left), input, ilen );
nexpaq 1:55a6170b404f 304 }
nexpaq 1:55a6170b404f 305
nexpaq 1:55a6170b404f 306 static const unsigned char sha512_padding[128] =
nexpaq 1:55a6170b404f 307 {
nexpaq 1:55a6170b404f 308 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 309 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 310 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 311 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 312 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
nexpaq 1:55a6170b404f 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
nexpaq 1:55a6170b404f 316 };
nexpaq 1:55a6170b404f 317
nexpaq 1:55a6170b404f 318 /*
nexpaq 1:55a6170b404f 319 * SHA-512 final digest
nexpaq 1:55a6170b404f 320 */
nexpaq 1:55a6170b404f 321 void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] )
nexpaq 1:55a6170b404f 322 {
nexpaq 1:55a6170b404f 323 size_t last, padn;
nexpaq 1:55a6170b404f 324 uint64_t high, low;
nexpaq 1:55a6170b404f 325 unsigned char msglen[16];
nexpaq 1:55a6170b404f 326
nexpaq 1:55a6170b404f 327 high = ( ctx->total[0] >> 61 )
nexpaq 1:55a6170b404f 328 | ( ctx->total[1] << 3 );
nexpaq 1:55a6170b404f 329 low = ( ctx->total[0] << 3 );
nexpaq 1:55a6170b404f 330
nexpaq 1:55a6170b404f 331 PUT_UINT64_BE( high, msglen, 0 );
nexpaq 1:55a6170b404f 332 PUT_UINT64_BE( low, msglen, 8 );
nexpaq 1:55a6170b404f 333
nexpaq 1:55a6170b404f 334 last = (size_t)( ctx->total[0] & 0x7F );
nexpaq 1:55a6170b404f 335 padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
nexpaq 1:55a6170b404f 336
nexpaq 1:55a6170b404f 337 mbedtls_sha512_update( ctx, sha512_padding, padn );
nexpaq 1:55a6170b404f 338 mbedtls_sha512_update( ctx, msglen, 16 );
nexpaq 1:55a6170b404f 339
nexpaq 1:55a6170b404f 340 PUT_UINT64_BE( ctx->state[0], output, 0 );
nexpaq 1:55a6170b404f 341 PUT_UINT64_BE( ctx->state[1], output, 8 );
nexpaq 1:55a6170b404f 342 PUT_UINT64_BE( ctx->state[2], output, 16 );
nexpaq 1:55a6170b404f 343 PUT_UINT64_BE( ctx->state[3], output, 24 );
nexpaq 1:55a6170b404f 344 PUT_UINT64_BE( ctx->state[4], output, 32 );
nexpaq 1:55a6170b404f 345 PUT_UINT64_BE( ctx->state[5], output, 40 );
nexpaq 1:55a6170b404f 346
nexpaq 1:55a6170b404f 347 if( ctx->is384 == 0 )
nexpaq 1:55a6170b404f 348 {
nexpaq 1:55a6170b404f 349 PUT_UINT64_BE( ctx->state[6], output, 48 );
nexpaq 1:55a6170b404f 350 PUT_UINT64_BE( ctx->state[7], output, 56 );
nexpaq 1:55a6170b404f 351 }
nexpaq 1:55a6170b404f 352 }
nexpaq 1:55a6170b404f 353
nexpaq 1:55a6170b404f 354 #endif /* !MBEDTLS_SHA512_ALT */
nexpaq 1:55a6170b404f 355
nexpaq 1:55a6170b404f 356 /*
nexpaq 1:55a6170b404f 357 * output = SHA-512( input buffer )
nexpaq 1:55a6170b404f 358 */
nexpaq 1:55a6170b404f 359 void mbedtls_sha512( const unsigned char *input, size_t ilen,
nexpaq 1:55a6170b404f 360 unsigned char output[64], int is384 )
nexpaq 1:55a6170b404f 361 {
nexpaq 1:55a6170b404f 362 mbedtls_sha512_context ctx;
nexpaq 1:55a6170b404f 363
nexpaq 1:55a6170b404f 364 mbedtls_sha512_init( &ctx );
nexpaq 1:55a6170b404f 365 mbedtls_sha512_starts( &ctx, is384 );
nexpaq 1:55a6170b404f 366 mbedtls_sha512_update( &ctx, input, ilen );
nexpaq 1:55a6170b404f 367 mbedtls_sha512_finish( &ctx, output );
nexpaq 1:55a6170b404f 368 mbedtls_sha512_free( &ctx );
nexpaq 1:55a6170b404f 369 }
nexpaq 1:55a6170b404f 370
nexpaq 1:55a6170b404f 371 #if defined(MBEDTLS_SELF_TEST)
nexpaq 1:55a6170b404f 372
nexpaq 1:55a6170b404f 373 /*
nexpaq 1:55a6170b404f 374 * FIPS-180-2 test vectors
nexpaq 1:55a6170b404f 375 */
nexpaq 1:55a6170b404f 376 static const unsigned char sha512_test_buf[3][113] =
nexpaq 1:55a6170b404f 377 {
nexpaq 1:55a6170b404f 378 { "abc" },
nexpaq 1:55a6170b404f 379 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
nexpaq 1:55a6170b404f 380 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
nexpaq 1:55a6170b404f 381 { "" }
nexpaq 1:55a6170b404f 382 };
nexpaq 1:55a6170b404f 383
nexpaq 1:55a6170b404f 384 static const int sha512_test_buflen[3] =
nexpaq 1:55a6170b404f 385 {
nexpaq 1:55a6170b404f 386 3, 112, 1000
nexpaq 1:55a6170b404f 387 };
nexpaq 1:55a6170b404f 388
nexpaq 1:55a6170b404f 389 static const unsigned char sha512_test_sum[6][64] =
nexpaq 1:55a6170b404f 390 {
nexpaq 1:55a6170b404f 391 /*
nexpaq 1:55a6170b404f 392 * SHA-384 test vectors
nexpaq 1:55a6170b404f 393 */
nexpaq 1:55a6170b404f 394 { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
nexpaq 1:55a6170b404f 395 0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
nexpaq 1:55a6170b404f 396 0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
nexpaq 1:55a6170b404f 397 0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
nexpaq 1:55a6170b404f 398 0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
nexpaq 1:55a6170b404f 399 0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
nexpaq 1:55a6170b404f 400 { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
nexpaq 1:55a6170b404f 401 0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
nexpaq 1:55a6170b404f 402 0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
nexpaq 1:55a6170b404f 403 0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
nexpaq 1:55a6170b404f 404 0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
nexpaq 1:55a6170b404f 405 0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
nexpaq 1:55a6170b404f 406 { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
nexpaq 1:55a6170b404f 407 0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
nexpaq 1:55a6170b404f 408 0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
nexpaq 1:55a6170b404f 409 0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
nexpaq 1:55a6170b404f 410 0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
nexpaq 1:55a6170b404f 411 0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
nexpaq 1:55a6170b404f 412
nexpaq 1:55a6170b404f 413 /*
nexpaq 1:55a6170b404f 414 * SHA-512 test vectors
nexpaq 1:55a6170b404f 415 */
nexpaq 1:55a6170b404f 416 { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
nexpaq 1:55a6170b404f 417 0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
nexpaq 1:55a6170b404f 418 0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
nexpaq 1:55a6170b404f 419 0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
nexpaq 1:55a6170b404f 420 0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
nexpaq 1:55a6170b404f 421 0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
nexpaq 1:55a6170b404f 422 0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
nexpaq 1:55a6170b404f 423 0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
nexpaq 1:55a6170b404f 424 { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
nexpaq 1:55a6170b404f 425 0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
nexpaq 1:55a6170b404f 426 0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
nexpaq 1:55a6170b404f 427 0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
nexpaq 1:55a6170b404f 428 0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
nexpaq 1:55a6170b404f 429 0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
nexpaq 1:55a6170b404f 430 0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
nexpaq 1:55a6170b404f 431 0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
nexpaq 1:55a6170b404f 432 { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
nexpaq 1:55a6170b404f 433 0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
nexpaq 1:55a6170b404f 434 0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
nexpaq 1:55a6170b404f 435 0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
nexpaq 1:55a6170b404f 436 0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
nexpaq 1:55a6170b404f 437 0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
nexpaq 1:55a6170b404f 438 0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
nexpaq 1:55a6170b404f 439 0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
nexpaq 1:55a6170b404f 440 };
nexpaq 1:55a6170b404f 441
nexpaq 1:55a6170b404f 442 /*
nexpaq 1:55a6170b404f 443 * Checkup routine
nexpaq 1:55a6170b404f 444 */
nexpaq 1:55a6170b404f 445 int mbedtls_sha512_self_test( int verbose )
nexpaq 1:55a6170b404f 446 {
nexpaq 1:55a6170b404f 447 int i, j, k, buflen, ret = 0;
nexpaq 1:55a6170b404f 448 unsigned char buf[1024];
nexpaq 1:55a6170b404f 449 unsigned char sha512sum[64];
nexpaq 1:55a6170b404f 450 mbedtls_sha512_context ctx;
nexpaq 1:55a6170b404f 451
nexpaq 1:55a6170b404f 452 mbedtls_sha512_init( &ctx );
nexpaq 1:55a6170b404f 453
nexpaq 1:55a6170b404f 454 for( i = 0; i < 6; i++ )
nexpaq 1:55a6170b404f 455 {
nexpaq 1:55a6170b404f 456 j = i % 3;
nexpaq 1:55a6170b404f 457 k = i < 3;
nexpaq 1:55a6170b404f 458
nexpaq 1:55a6170b404f 459 if( verbose != 0 )
nexpaq 1:55a6170b404f 460 mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
nexpaq 1:55a6170b404f 461
nexpaq 1:55a6170b404f 462 mbedtls_sha512_starts( &ctx, k );
nexpaq 1:55a6170b404f 463
nexpaq 1:55a6170b404f 464 if( j == 2 )
nexpaq 1:55a6170b404f 465 {
nexpaq 1:55a6170b404f 466 memset( buf, 'a', buflen = 1000 );
nexpaq 1:55a6170b404f 467
nexpaq 1:55a6170b404f 468 for( j = 0; j < 1000; j++ )
nexpaq 1:55a6170b404f 469 mbedtls_sha512_update( &ctx, buf, buflen );
nexpaq 1:55a6170b404f 470 }
nexpaq 1:55a6170b404f 471 else
nexpaq 1:55a6170b404f 472 mbedtls_sha512_update( &ctx, sha512_test_buf[j],
nexpaq 1:55a6170b404f 473 sha512_test_buflen[j] );
nexpaq 1:55a6170b404f 474
nexpaq 1:55a6170b404f 475 mbedtls_sha512_finish( &ctx, sha512sum );
nexpaq 1:55a6170b404f 476
nexpaq 1:55a6170b404f 477 if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
nexpaq 1:55a6170b404f 478 {
nexpaq 1:55a6170b404f 479 if( verbose != 0 )
nexpaq 1:55a6170b404f 480 mbedtls_printf( "failed\n" );
nexpaq 1:55a6170b404f 481
nexpaq 1:55a6170b404f 482 ret = 1;
nexpaq 1:55a6170b404f 483 goto exit;
nexpaq 1:55a6170b404f 484 }
nexpaq 1:55a6170b404f 485
nexpaq 1:55a6170b404f 486 if( verbose != 0 )
nexpaq 1:55a6170b404f 487 mbedtls_printf( "passed\n" );
nexpaq 1:55a6170b404f 488 }
nexpaq 1:55a6170b404f 489
nexpaq 1:55a6170b404f 490 if( verbose != 0 )
nexpaq 1:55a6170b404f 491 mbedtls_printf( "\n" );
nexpaq 1:55a6170b404f 492
nexpaq 1:55a6170b404f 493 exit:
nexpaq 1:55a6170b404f 494 mbedtls_sha512_free( &ctx );
nexpaq 1:55a6170b404f 495
nexpaq 1:55a6170b404f 496 return( ret );
nexpaq 1:55a6170b404f 497 }
nexpaq 1:55a6170b404f 498
nexpaq 1:55a6170b404f 499 #endif /* MBEDTLS_SELF_TEST */
nexpaq 1:55a6170b404f 500
nexpaq 1:55a6170b404f 501 #endif /* MBEDTLS_SHA512_C */