EL4121 Embedded System / mbed-os

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features/mbedtls/src/sha512.c@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /*
be_bryan 0:b74591d5ab33 2 * FIPS-180-2 compliant SHA-384/512 implementation
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
be_bryan 0:b74591d5ab33 5 * SPDX-License-Identifier: Apache-2.0
be_bryan 0:b74591d5ab33 6 *
be_bryan 0:b74591d5ab33 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
be_bryan 0:b74591d5ab33 8 * not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 9 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 10 *
be_bryan 0:b74591d5ab33 11 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 12 *
be_bryan 0:b74591d5ab33 13 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
be_bryan 0:b74591d5ab33 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 16 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 17 * limitations under the License.
be_bryan 0:b74591d5ab33 18 *
be_bryan 0:b74591d5ab33 19 * This file is part of mbed TLS (https://tls.mbed.org)
be_bryan 0:b74591d5ab33 20 */
be_bryan 0:b74591d5ab33 21 /*
be_bryan 0:b74591d5ab33 22 * The SHA-512 Secure Hash Standard was published by NIST in 2002.
be_bryan 0:b74591d5ab33 23 *
be_bryan 0:b74591d5ab33 24 * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
be_bryan 0:b74591d5ab33 25 */
be_bryan 0:b74591d5ab33 26
be_bryan 0:b74591d5ab33 27 #if !defined(MBEDTLS_CONFIG_FILE)
be_bryan 0:b74591d5ab33 28 #include "mbedtls/config.h"
be_bryan 0:b74591d5ab33 29 #else
be_bryan 0:b74591d5ab33 30 #include MBEDTLS_CONFIG_FILE
be_bryan 0:b74591d5ab33 31 #endif
be_bryan 0:b74591d5ab33 32
be_bryan 0:b74591d5ab33 33 #if defined(MBEDTLS_SHA512_C)
be_bryan 0:b74591d5ab33 34
be_bryan 0:b74591d5ab33 35 #include "mbedtls/sha512.h"
be_bryan 0:b74591d5ab33 36
be_bryan 0:b74591d5ab33 37 #if defined(_MSC_VER) || defined(__WATCOMC__)
be_bryan 0:b74591d5ab33 38 #define UL64(x) x##ui64
be_bryan 0:b74591d5ab33 39 #else
be_bryan 0:b74591d5ab33 40 #define UL64(x) x##ULL
be_bryan 0:b74591d5ab33 41 #endif
be_bryan 0:b74591d5ab33 42
be_bryan 0:b74591d5ab33 43 #include <string.h>
be_bryan 0:b74591d5ab33 44
be_bryan 0:b74591d5ab33 45 #if defined(MBEDTLS_SELF_TEST)
be_bryan 0:b74591d5ab33 46 #if defined(MBEDTLS_PLATFORM_C)
be_bryan 0:b74591d5ab33 47 #include "mbedtls/platform.h"
be_bryan 0:b74591d5ab33 48 #else
be_bryan 0:b74591d5ab33 49 #include <stdio.h>
be_bryan 0:b74591d5ab33 50 #include <stdlib.h>
be_bryan 0:b74591d5ab33 51 #define mbedtls_printf printf
be_bryan 0:b74591d5ab33 52 #define mbedtls_calloc calloc
be_bryan 0:b74591d5ab33 53 #define mbedtls_free free
be_bryan 0:b74591d5ab33 54 #endif /* MBEDTLS_PLATFORM_C */
be_bryan 0:b74591d5ab33 55 #endif /* MBEDTLS_SELF_TEST */
be_bryan 0:b74591d5ab33 56
be_bryan 0:b74591d5ab33 57 #if !defined(MBEDTLS_SHA512_ALT)
be_bryan 0:b74591d5ab33 58
be_bryan 0:b74591d5ab33 59 /* Implementation that should never be optimized out by the compiler */
be_bryan 0:b74591d5ab33 60 static void mbedtls_zeroize( void *v, size_t n ) {
be_bryan 0:b74591d5ab33 61 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
be_bryan 0:b74591d5ab33 62 }
be_bryan 0:b74591d5ab33 63
be_bryan 0:b74591d5ab33 64 /*
be_bryan 0:b74591d5ab33 65 * 64-bit integer manipulation macros (big endian)
be_bryan 0:b74591d5ab33 66 */
be_bryan 0:b74591d5ab33 67 #ifndef GET_UINT64_BE
be_bryan 0:b74591d5ab33 68 #define GET_UINT64_BE(n,b,i) \
be_bryan 0:b74591d5ab33 69 { \
be_bryan 0:b74591d5ab33 70 (n) = ( (uint64_t) (b)[(i) ] << 56 ) \
be_bryan 0:b74591d5ab33 71 | ( (uint64_t) (b)[(i) + 1] << 48 ) \
be_bryan 0:b74591d5ab33 72 | ( (uint64_t) (b)[(i) + 2] << 40 ) \
be_bryan 0:b74591d5ab33 73 | ( (uint64_t) (b)[(i) + 3] << 32 ) \
be_bryan 0:b74591d5ab33 74 | ( (uint64_t) (b)[(i) + 4] << 24 ) \
be_bryan 0:b74591d5ab33 75 | ( (uint64_t) (b)[(i) + 5] << 16 ) \
be_bryan 0:b74591d5ab33 76 | ( (uint64_t) (b)[(i) + 6] << 8 ) \
be_bryan 0:b74591d5ab33 77 | ( (uint64_t) (b)[(i) + 7] ); \
be_bryan 0:b74591d5ab33 78 }
be_bryan 0:b74591d5ab33 79 #endif /* GET_UINT64_BE */
be_bryan 0:b74591d5ab33 80
be_bryan 0:b74591d5ab33 81 #ifndef PUT_UINT64_BE
be_bryan 0:b74591d5ab33 82 #define PUT_UINT64_BE(n,b,i) \
be_bryan 0:b74591d5ab33 83 { \
be_bryan 0:b74591d5ab33 84 (b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
be_bryan 0:b74591d5ab33 85 (b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
be_bryan 0:b74591d5ab33 86 (b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
be_bryan 0:b74591d5ab33 87 (b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
be_bryan 0:b74591d5ab33 88 (b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
be_bryan 0:b74591d5ab33 89 (b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
be_bryan 0:b74591d5ab33 90 (b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
be_bryan 0:b74591d5ab33 91 (b)[(i) + 7] = (unsigned char) ( (n) ); \
be_bryan 0:b74591d5ab33 92 }
be_bryan 0:b74591d5ab33 93 #endif /* PUT_UINT64_BE */
be_bryan 0:b74591d5ab33 94
be_bryan 0:b74591d5ab33 95 void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
be_bryan 0:b74591d5ab33 96 {
be_bryan 0:b74591d5ab33 97 memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
be_bryan 0:b74591d5ab33 98 }
be_bryan 0:b74591d5ab33 99
be_bryan 0:b74591d5ab33 100 void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
be_bryan 0:b74591d5ab33 101 {
be_bryan 0:b74591d5ab33 102 if( ctx == NULL )
be_bryan 0:b74591d5ab33 103 return;
be_bryan 0:b74591d5ab33 104
be_bryan 0:b74591d5ab33 105 mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
be_bryan 0:b74591d5ab33 106 }
be_bryan 0:b74591d5ab33 107
be_bryan 0:b74591d5ab33 108 void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
be_bryan 0:b74591d5ab33 109 const mbedtls_sha512_context *src )
be_bryan 0:b74591d5ab33 110 {
be_bryan 0:b74591d5ab33 111 *dst = *src;
be_bryan 0:b74591d5ab33 112 }
be_bryan 0:b74591d5ab33 113
be_bryan 0:b74591d5ab33 114 /*
be_bryan 0:b74591d5ab33 115 * SHA-512 context setup
be_bryan 0:b74591d5ab33 116 */
be_bryan 0:b74591d5ab33 117 void mbedtls_sha512_starts( mbedtls_sha512_context *ctx, int is384 )
be_bryan 0:b74591d5ab33 118 {
be_bryan 0:b74591d5ab33 119 ctx->total[0] = 0;
be_bryan 0:b74591d5ab33 120 ctx->total[1] = 0;
be_bryan 0:b74591d5ab33 121
be_bryan 0:b74591d5ab33 122 if( is384 == 0 )
be_bryan 0:b74591d5ab33 123 {
be_bryan 0:b74591d5ab33 124 /* SHA-512 */
be_bryan 0:b74591d5ab33 125 ctx->state[0] = UL64(0x6A09E667F3BCC908);
be_bryan 0:b74591d5ab33 126 ctx->state[1] = UL64(0xBB67AE8584CAA73B);
be_bryan 0:b74591d5ab33 127 ctx->state[2] = UL64(0x3C6EF372FE94F82B);
be_bryan 0:b74591d5ab33 128 ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
be_bryan 0:b74591d5ab33 129 ctx->state[4] = UL64(0x510E527FADE682D1);
be_bryan 0:b74591d5ab33 130 ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
be_bryan 0:b74591d5ab33 131 ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
be_bryan 0:b74591d5ab33 132 ctx->state[7] = UL64(0x5BE0CD19137E2179);
be_bryan 0:b74591d5ab33 133 }
be_bryan 0:b74591d5ab33 134 else
be_bryan 0:b74591d5ab33 135 {
be_bryan 0:b74591d5ab33 136 /* SHA-384 */
be_bryan 0:b74591d5ab33 137 ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
be_bryan 0:b74591d5ab33 138 ctx->state[1] = UL64(0x629A292A367CD507);
be_bryan 0:b74591d5ab33 139 ctx->state[2] = UL64(0x9159015A3070DD17);
be_bryan 0:b74591d5ab33 140 ctx->state[3] = UL64(0x152FECD8F70E5939);
be_bryan 0:b74591d5ab33 141 ctx->state[4] = UL64(0x67332667FFC00B31);
be_bryan 0:b74591d5ab33 142 ctx->state[5] = UL64(0x8EB44A8768581511);
be_bryan 0:b74591d5ab33 143 ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
be_bryan 0:b74591d5ab33 144 ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
be_bryan 0:b74591d5ab33 145 }
be_bryan 0:b74591d5ab33 146
be_bryan 0:b74591d5ab33 147 ctx->is384 = is384;
be_bryan 0:b74591d5ab33 148 }
be_bryan 0:b74591d5ab33 149
be_bryan 0:b74591d5ab33 150 #if !defined(MBEDTLS_SHA512_PROCESS_ALT)
be_bryan 0:b74591d5ab33 151
be_bryan 0:b74591d5ab33 152 /*
be_bryan 0:b74591d5ab33 153 * Round constants
be_bryan 0:b74591d5ab33 154 */
be_bryan 0:b74591d5ab33 155 static const uint64_t K[80] =
be_bryan 0:b74591d5ab33 156 {
be_bryan 0:b74591d5ab33 157 UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
be_bryan 0:b74591d5ab33 158 UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
be_bryan 0:b74591d5ab33 159 UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
be_bryan 0:b74591d5ab33 160 UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
be_bryan 0:b74591d5ab33 161 UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
be_bryan 0:b74591d5ab33 162 UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
be_bryan 0:b74591d5ab33 163 UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
be_bryan 0:b74591d5ab33 164 UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
be_bryan 0:b74591d5ab33 165 UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
be_bryan 0:b74591d5ab33 166 UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
be_bryan 0:b74591d5ab33 167 UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
be_bryan 0:b74591d5ab33 168 UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
be_bryan 0:b74591d5ab33 169 UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
be_bryan 0:b74591d5ab33 170 UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
be_bryan 0:b74591d5ab33 171 UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
be_bryan 0:b74591d5ab33 172 UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
be_bryan 0:b74591d5ab33 173 UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
be_bryan 0:b74591d5ab33 174 UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
be_bryan 0:b74591d5ab33 175 UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
be_bryan 0:b74591d5ab33 176 UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
be_bryan 0:b74591d5ab33 177 UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
be_bryan 0:b74591d5ab33 178 UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
be_bryan 0:b74591d5ab33 179 UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
be_bryan 0:b74591d5ab33 180 UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
be_bryan 0:b74591d5ab33 181 UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
be_bryan 0:b74591d5ab33 182 UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
be_bryan 0:b74591d5ab33 183 UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
be_bryan 0:b74591d5ab33 184 UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
be_bryan 0:b74591d5ab33 185 UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
be_bryan 0:b74591d5ab33 186 UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
be_bryan 0:b74591d5ab33 187 UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
be_bryan 0:b74591d5ab33 188 UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
be_bryan 0:b74591d5ab33 189 UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
be_bryan 0:b74591d5ab33 190 UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
be_bryan 0:b74591d5ab33 191 UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
be_bryan 0:b74591d5ab33 192 UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
be_bryan 0:b74591d5ab33 193 UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
be_bryan 0:b74591d5ab33 194 UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
be_bryan 0:b74591d5ab33 195 UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
be_bryan 0:b74591d5ab33 196 UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
be_bryan 0:b74591d5ab33 197 };
be_bryan 0:b74591d5ab33 198
be_bryan 0:b74591d5ab33 199 void mbedtls_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] )
be_bryan 0:b74591d5ab33 200 {
be_bryan 0:b74591d5ab33 201 int i;
be_bryan 0:b74591d5ab33 202 uint64_t temp1, temp2, W[80];
be_bryan 0:b74591d5ab33 203 uint64_t A, B, C, D, E, F, G, H;
be_bryan 0:b74591d5ab33 204
be_bryan 0:b74591d5ab33 205 #define SHR(x,n) (x >> n)
be_bryan 0:b74591d5ab33 206 #define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
be_bryan 0:b74591d5ab33 207
be_bryan 0:b74591d5ab33 208 #define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
be_bryan 0:b74591d5ab33 209 #define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
be_bryan 0:b74591d5ab33 210
be_bryan 0:b74591d5ab33 211 #define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
be_bryan 0:b74591d5ab33 212 #define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
be_bryan 0:b74591d5ab33 213
be_bryan 0:b74591d5ab33 214 #define F0(x,y,z) ((x & y) | (z & (x | y)))
be_bryan 0:b74591d5ab33 215 #define F1(x,y,z) (z ^ (x & (y ^ z)))
be_bryan 0:b74591d5ab33 216
be_bryan 0:b74591d5ab33 217 #define P(a,b,c,d,e,f,g,h,x,K) \
be_bryan 0:b74591d5ab33 218 { \
be_bryan 0:b74591d5ab33 219 temp1 = h + S3(e) + F1(e,f,g) + K + x; \
be_bryan 0:b74591d5ab33 220 temp2 = S2(a) + F0(a,b,c); \
be_bryan 0:b74591d5ab33 221 d += temp1; h = temp1 + temp2; \
be_bryan 0:b74591d5ab33 222 }
be_bryan 0:b74591d5ab33 223
be_bryan 0:b74591d5ab33 224 for( i = 0; i < 16; i++ )
be_bryan 0:b74591d5ab33 225 {
be_bryan 0:b74591d5ab33 226 GET_UINT64_BE( W[i], data, i << 3 );
be_bryan 0:b74591d5ab33 227 }
be_bryan 0:b74591d5ab33 228
be_bryan 0:b74591d5ab33 229 for( ; i < 80; i++ )
be_bryan 0:b74591d5ab33 230 {
be_bryan 0:b74591d5ab33 231 W[i] = S1(W[i - 2]) + W[i - 7] +
be_bryan 0:b74591d5ab33 232 S0(W[i - 15]) + W[i - 16];
be_bryan 0:b74591d5ab33 233 }
be_bryan 0:b74591d5ab33 234
be_bryan 0:b74591d5ab33 235 A = ctx->state[0];
be_bryan 0:b74591d5ab33 236 B = ctx->state[1];
be_bryan 0:b74591d5ab33 237 C = ctx->state[2];
be_bryan 0:b74591d5ab33 238 D = ctx->state[3];
be_bryan 0:b74591d5ab33 239 E = ctx->state[4];
be_bryan 0:b74591d5ab33 240 F = ctx->state[5];
be_bryan 0:b74591d5ab33 241 G = ctx->state[6];
be_bryan 0:b74591d5ab33 242 H = ctx->state[7];
be_bryan 0:b74591d5ab33 243 i = 0;
be_bryan 0:b74591d5ab33 244
be_bryan 0:b74591d5ab33 245 do
be_bryan 0:b74591d5ab33 246 {
be_bryan 0:b74591d5ab33 247 P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 248 P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 249 P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 250 P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 251 P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 252 P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 253 P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 254 P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
be_bryan 0:b74591d5ab33 255 }
be_bryan 0:b74591d5ab33 256 while( i < 80 );
be_bryan 0:b74591d5ab33 257
be_bryan 0:b74591d5ab33 258 ctx->state[0] += A;
be_bryan 0:b74591d5ab33 259 ctx->state[1] += B;
be_bryan 0:b74591d5ab33 260 ctx->state[2] += C;
be_bryan 0:b74591d5ab33 261 ctx->state[3] += D;
be_bryan 0:b74591d5ab33 262 ctx->state[4] += E;
be_bryan 0:b74591d5ab33 263 ctx->state[5] += F;
be_bryan 0:b74591d5ab33 264 ctx->state[6] += G;
be_bryan 0:b74591d5ab33 265 ctx->state[7] += H;
be_bryan 0:b74591d5ab33 266 }
be_bryan 0:b74591d5ab33 267 #endif /* !MBEDTLS_SHA512_PROCESS_ALT */
be_bryan 0:b74591d5ab33 268
be_bryan 0:b74591d5ab33 269 /*
be_bryan 0:b74591d5ab33 270 * SHA-512 process buffer
be_bryan 0:b74591d5ab33 271 */
be_bryan 0:b74591d5ab33 272 void mbedtls_sha512_update( mbedtls_sha512_context *ctx, const unsigned char *input,
be_bryan 0:b74591d5ab33 273 size_t ilen )
be_bryan 0:b74591d5ab33 274 {
be_bryan 0:b74591d5ab33 275 size_t fill;
be_bryan 0:b74591d5ab33 276 unsigned int left;
be_bryan 0:b74591d5ab33 277
be_bryan 0:b74591d5ab33 278 if( ilen == 0 )
be_bryan 0:b74591d5ab33 279 return;
be_bryan 0:b74591d5ab33 280
be_bryan 0:b74591d5ab33 281 left = (unsigned int) (ctx->total[0] & 0x7F);
be_bryan 0:b74591d5ab33 282 fill = 128 - left;
be_bryan 0:b74591d5ab33 283
be_bryan 0:b74591d5ab33 284 ctx->total[0] += (uint64_t) ilen;
be_bryan 0:b74591d5ab33 285
be_bryan 0:b74591d5ab33 286 if( ctx->total[0] < (uint64_t) ilen )
be_bryan 0:b74591d5ab33 287 ctx->total[1]++;
be_bryan 0:b74591d5ab33 288
be_bryan 0:b74591d5ab33 289 if( left && ilen >= fill )
be_bryan 0:b74591d5ab33 290 {
be_bryan 0:b74591d5ab33 291 memcpy( (void *) (ctx->buffer + left), input, fill );
be_bryan 0:b74591d5ab33 292 mbedtls_sha512_process( ctx, ctx->buffer );
be_bryan 0:b74591d5ab33 293 input += fill;
be_bryan 0:b74591d5ab33 294 ilen -= fill;
be_bryan 0:b74591d5ab33 295 left = 0;
be_bryan 0:b74591d5ab33 296 }
be_bryan 0:b74591d5ab33 297
be_bryan 0:b74591d5ab33 298 while( ilen >= 128 )
be_bryan 0:b74591d5ab33 299 {
be_bryan 0:b74591d5ab33 300 mbedtls_sha512_process( ctx, input );
be_bryan 0:b74591d5ab33 301 input += 128;
be_bryan 0:b74591d5ab33 302 ilen -= 128;
be_bryan 0:b74591d5ab33 303 }
be_bryan 0:b74591d5ab33 304
be_bryan 0:b74591d5ab33 305 if( ilen > 0 )
be_bryan 0:b74591d5ab33 306 memcpy( (void *) (ctx->buffer + left), input, ilen );
be_bryan 0:b74591d5ab33 307 }
be_bryan 0:b74591d5ab33 308
be_bryan 0:b74591d5ab33 309 static const unsigned char sha512_padding[128] =
be_bryan 0:b74591d5ab33 310 {
be_bryan 0:b74591d5ab33 311 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 312 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 313 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 314 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 315 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 316 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 317 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
be_bryan 0:b74591d5ab33 318 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
be_bryan 0:b74591d5ab33 319 };
be_bryan 0:b74591d5ab33 320
be_bryan 0:b74591d5ab33 321 /*
be_bryan 0:b74591d5ab33 322 * SHA-512 final digest
be_bryan 0:b74591d5ab33 323 */
be_bryan 0:b74591d5ab33 324 void mbedtls_sha512_finish( mbedtls_sha512_context *ctx, unsigned char output[64] )
be_bryan 0:b74591d5ab33 325 {
be_bryan 0:b74591d5ab33 326 size_t last, padn;
be_bryan 0:b74591d5ab33 327 uint64_t high, low;
be_bryan 0:b74591d5ab33 328 unsigned char msglen[16];
be_bryan 0:b74591d5ab33 329
be_bryan 0:b74591d5ab33 330 high = ( ctx->total[0] >> 61 )
be_bryan 0:b74591d5ab33 331 | ( ctx->total[1] << 3 );
be_bryan 0:b74591d5ab33 332 low = ( ctx->total[0] << 3 );
be_bryan 0:b74591d5ab33 333
be_bryan 0:b74591d5ab33 334 PUT_UINT64_BE( high, msglen, 0 );
be_bryan 0:b74591d5ab33 335 PUT_UINT64_BE( low, msglen, 8 );
be_bryan 0:b74591d5ab33 336
be_bryan 0:b74591d5ab33 337 last = (size_t)( ctx->total[0] & 0x7F );
be_bryan 0:b74591d5ab33 338 padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
be_bryan 0:b74591d5ab33 339
be_bryan 0:b74591d5ab33 340 mbedtls_sha512_update( ctx, sha512_padding, padn );
be_bryan 0:b74591d5ab33 341 mbedtls_sha512_update( ctx, msglen, 16 );
be_bryan 0:b74591d5ab33 342
be_bryan 0:b74591d5ab33 343 PUT_UINT64_BE( ctx->state[0], output, 0 );
be_bryan 0:b74591d5ab33 344 PUT_UINT64_BE( ctx->state[1], output, 8 );
be_bryan 0:b74591d5ab33 345 PUT_UINT64_BE( ctx->state[2], output, 16 );
be_bryan 0:b74591d5ab33 346 PUT_UINT64_BE( ctx->state[3], output, 24 );
be_bryan 0:b74591d5ab33 347 PUT_UINT64_BE( ctx->state[4], output, 32 );
be_bryan 0:b74591d5ab33 348 PUT_UINT64_BE( ctx->state[5], output, 40 );
be_bryan 0:b74591d5ab33 349
be_bryan 0:b74591d5ab33 350 if( ctx->is384 == 0 )
be_bryan 0:b74591d5ab33 351 {
be_bryan 0:b74591d5ab33 352 PUT_UINT64_BE( ctx->state[6], output, 48 );
be_bryan 0:b74591d5ab33 353 PUT_UINT64_BE( ctx->state[7], output, 56 );
be_bryan 0:b74591d5ab33 354 }
be_bryan 0:b74591d5ab33 355 }
be_bryan 0:b74591d5ab33 356
be_bryan 0:b74591d5ab33 357 #endif /* !MBEDTLS_SHA512_ALT */
be_bryan 0:b74591d5ab33 358
be_bryan 0:b74591d5ab33 359 /*
be_bryan 0:b74591d5ab33 360 * output = SHA-512( input buffer )
be_bryan 0:b74591d5ab33 361 */
be_bryan 0:b74591d5ab33 362 void mbedtls_sha512( const unsigned char *input, size_t ilen,
be_bryan 0:b74591d5ab33 363 unsigned char output[64], int is384 )
be_bryan 0:b74591d5ab33 364 {
be_bryan 0:b74591d5ab33 365 mbedtls_sha512_context ctx;
be_bryan 0:b74591d5ab33 366
be_bryan 0:b74591d5ab33 367 mbedtls_sha512_init( &ctx );
be_bryan 0:b74591d5ab33 368 mbedtls_sha512_starts( &ctx, is384 );
be_bryan 0:b74591d5ab33 369 mbedtls_sha512_update( &ctx, input, ilen );
be_bryan 0:b74591d5ab33 370 mbedtls_sha512_finish( &ctx, output );
be_bryan 0:b74591d5ab33 371 mbedtls_sha512_free( &ctx );
be_bryan 0:b74591d5ab33 372 }
be_bryan 0:b74591d5ab33 373
be_bryan 0:b74591d5ab33 374 #if defined(MBEDTLS_SELF_TEST)
be_bryan 0:b74591d5ab33 375
be_bryan 0:b74591d5ab33 376 /*
be_bryan 0:b74591d5ab33 377 * FIPS-180-2 test vectors
be_bryan 0:b74591d5ab33 378 */
be_bryan 0:b74591d5ab33 379 static const unsigned char sha512_test_buf[3][113] =
be_bryan 0:b74591d5ab33 380 {
be_bryan 0:b74591d5ab33 381 { "abc" },
be_bryan 0:b74591d5ab33 382 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
be_bryan 0:b74591d5ab33 383 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
be_bryan 0:b74591d5ab33 384 { "" }
be_bryan 0:b74591d5ab33 385 };
be_bryan 0:b74591d5ab33 386
be_bryan 0:b74591d5ab33 387 static const int sha512_test_buflen[3] =
be_bryan 0:b74591d5ab33 388 {
be_bryan 0:b74591d5ab33 389 3, 112, 1000
be_bryan 0:b74591d5ab33 390 };
be_bryan 0:b74591d5ab33 391
be_bryan 0:b74591d5ab33 392 static const unsigned char sha512_test_sum[6][64] =
be_bryan 0:b74591d5ab33 393 {
be_bryan 0:b74591d5ab33 394 /*
be_bryan 0:b74591d5ab33 395 * SHA-384 test vectors
be_bryan 0:b74591d5ab33 396 */
be_bryan 0:b74591d5ab33 397 { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
be_bryan 0:b74591d5ab33 398 0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
be_bryan 0:b74591d5ab33 399 0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
be_bryan 0:b74591d5ab33 400 0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
be_bryan 0:b74591d5ab33 401 0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
be_bryan 0:b74591d5ab33 402 0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
be_bryan 0:b74591d5ab33 403 { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
be_bryan 0:b74591d5ab33 404 0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
be_bryan 0:b74591d5ab33 405 0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
be_bryan 0:b74591d5ab33 406 0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
be_bryan 0:b74591d5ab33 407 0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
be_bryan 0:b74591d5ab33 408 0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
be_bryan 0:b74591d5ab33 409 { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
be_bryan 0:b74591d5ab33 410 0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
be_bryan 0:b74591d5ab33 411 0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
be_bryan 0:b74591d5ab33 412 0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
be_bryan 0:b74591d5ab33 413 0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
be_bryan 0:b74591d5ab33 414 0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
be_bryan 0:b74591d5ab33 415
be_bryan 0:b74591d5ab33 416 /*
be_bryan 0:b74591d5ab33 417 * SHA-512 test vectors
be_bryan 0:b74591d5ab33 418 */
be_bryan 0:b74591d5ab33 419 { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
be_bryan 0:b74591d5ab33 420 0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
be_bryan 0:b74591d5ab33 421 0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
be_bryan 0:b74591d5ab33 422 0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
be_bryan 0:b74591d5ab33 423 0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
be_bryan 0:b74591d5ab33 424 0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
be_bryan 0:b74591d5ab33 425 0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
be_bryan 0:b74591d5ab33 426 0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
be_bryan 0:b74591d5ab33 427 { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
be_bryan 0:b74591d5ab33 428 0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
be_bryan 0:b74591d5ab33 429 0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
be_bryan 0:b74591d5ab33 430 0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
be_bryan 0:b74591d5ab33 431 0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
be_bryan 0:b74591d5ab33 432 0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
be_bryan 0:b74591d5ab33 433 0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
be_bryan 0:b74591d5ab33 434 0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
be_bryan 0:b74591d5ab33 435 { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
be_bryan 0:b74591d5ab33 436 0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
be_bryan 0:b74591d5ab33 437 0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
be_bryan 0:b74591d5ab33 438 0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
be_bryan 0:b74591d5ab33 439 0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
be_bryan 0:b74591d5ab33 440 0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
be_bryan 0:b74591d5ab33 441 0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
be_bryan 0:b74591d5ab33 442 0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
be_bryan 0:b74591d5ab33 443 };
be_bryan 0:b74591d5ab33 444
be_bryan 0:b74591d5ab33 445 /*
be_bryan 0:b74591d5ab33 446 * Checkup routine
be_bryan 0:b74591d5ab33 447 */
be_bryan 0:b74591d5ab33 448 int mbedtls_sha512_self_test( int verbose )
be_bryan 0:b74591d5ab33 449 {
be_bryan 0:b74591d5ab33 450 int i, j, k, buflen, ret = 0;
be_bryan 0:b74591d5ab33 451 unsigned char *buf;
be_bryan 0:b74591d5ab33 452 unsigned char sha512sum[64];
be_bryan 0:b74591d5ab33 453 mbedtls_sha512_context ctx;
be_bryan 0:b74591d5ab33 454
be_bryan 0:b74591d5ab33 455 buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
be_bryan 0:b74591d5ab33 456 if( NULL == buf )
be_bryan 0:b74591d5ab33 457 {
be_bryan 0:b74591d5ab33 458 if( verbose != 0 )
be_bryan 0:b74591d5ab33 459 mbedtls_printf( "Buffer allocation failed\n" );
be_bryan 0:b74591d5ab33 460
be_bryan 0:b74591d5ab33 461 return( 1 );
be_bryan 0:b74591d5ab33 462 }
be_bryan 0:b74591d5ab33 463
be_bryan 0:b74591d5ab33 464 mbedtls_sha512_init( &ctx );
be_bryan 0:b74591d5ab33 465
be_bryan 0:b74591d5ab33 466 for( i = 0; i < 6; i++ )
be_bryan 0:b74591d5ab33 467 {
be_bryan 0:b74591d5ab33 468 j = i % 3;
be_bryan 0:b74591d5ab33 469 k = i < 3;
be_bryan 0:b74591d5ab33 470
be_bryan 0:b74591d5ab33 471 if( verbose != 0 )
be_bryan 0:b74591d5ab33 472 mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
be_bryan 0:b74591d5ab33 473
be_bryan 0:b74591d5ab33 474 mbedtls_sha512_starts( &ctx, k );
be_bryan 0:b74591d5ab33 475
be_bryan 0:b74591d5ab33 476 if( j == 2 )
be_bryan 0:b74591d5ab33 477 {
be_bryan 0:b74591d5ab33 478 memset( buf, 'a', buflen = 1000 );
be_bryan 0:b74591d5ab33 479
be_bryan 0:b74591d5ab33 480 for( j = 0; j < 1000; j++ )
be_bryan 0:b74591d5ab33 481 mbedtls_sha512_update( &ctx, buf, buflen );
be_bryan 0:b74591d5ab33 482 }
be_bryan 0:b74591d5ab33 483 else
be_bryan 0:b74591d5ab33 484 mbedtls_sha512_update( &ctx, sha512_test_buf[j],
be_bryan 0:b74591d5ab33 485 sha512_test_buflen[j] );
be_bryan 0:b74591d5ab33 486
be_bryan 0:b74591d5ab33 487 mbedtls_sha512_finish( &ctx, sha512sum );
be_bryan 0:b74591d5ab33 488
be_bryan 0:b74591d5ab33 489 if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
be_bryan 0:b74591d5ab33 490 {
be_bryan 0:b74591d5ab33 491 if( verbose != 0 )
be_bryan 0:b74591d5ab33 492 mbedtls_printf( "failed\n" );
be_bryan 0:b74591d5ab33 493
be_bryan 0:b74591d5ab33 494 ret = 1;
be_bryan 0:b74591d5ab33 495 goto exit;
be_bryan 0:b74591d5ab33 496 }
be_bryan 0:b74591d5ab33 497
be_bryan 0:b74591d5ab33 498 if( verbose != 0 )
be_bryan 0:b74591d5ab33 499 mbedtls_printf( "passed\n" );
be_bryan 0:b74591d5ab33 500 }
be_bryan 0:b74591d5ab33 501
be_bryan 0:b74591d5ab33 502 if( verbose != 0 )
be_bryan 0:b74591d5ab33 503 mbedtls_printf( "\n" );
be_bryan 0:b74591d5ab33 504
be_bryan 0:b74591d5ab33 505 exit:
be_bryan 0:b74591d5ab33 506 mbedtls_sha512_free( &ctx );
be_bryan 0:b74591d5ab33 507 mbedtls_free( buf );
be_bryan 0:b74591d5ab33 508
be_bryan 0:b74591d5ab33 509 return( ret );
be_bryan 0:b74591d5ab33 510 }
be_bryan 0:b74591d5ab33 511
be_bryan 0:b74591d5ab33 512 #endif /* MBEDTLS_SELF_TEST */
be_bryan 0:b74591d5ab33 513
be_bryan 0:b74591d5ab33 514 #endif /* MBEDTLS_SHA512_C */