MultiTech / CyaSSL

A library for setting up Secure Socket Layer (SSL) connections and verifying remote hosts using certificates. Contains only the source files for mbed platform implementation of the library.

Dependents:   HTTPClient-SSL HTTPClient-SSL HTTPClient-SSL HTTPClient-SSL

ctaocrypt/src/sha512.c@6:cf58d49e1a86, 2015-03-23 (annotated)

Committer:
Mike Fiore
Date:
Mon Mar 23 16:51:07 2015 -0500
Revision:
6:cf58d49e1a86
Parent:
4:571a0c156d9d 
fix whitespace in sha512.c

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Vanger 0:b86d15c6ba29 1 /* sha512.c
Vanger 0:b86d15c6ba29 2 *
Vanger 0:b86d15c6ba29 3 * Copyright (C) 2006-2014 wolfSSL Inc.
Vanger 0:b86d15c6ba29 4 *
Vanger 0:b86d15c6ba29 5 * This file is part of CyaSSL.
Vanger 0:b86d15c6ba29 6 *
Vanger 0:b86d15c6ba29 7 * CyaSSL is free software; you can redistribute it and/or modify
Vanger 0:b86d15c6ba29 8 * it under the terms of the GNU General Public License as published by
Vanger 0:b86d15c6ba29 9 * the Free Software Foundation; either version 2 of the License, or
Vanger 0:b86d15c6ba29 10 * (at your option) any later version.
Vanger 0:b86d15c6ba29 11 *
Vanger 0:b86d15c6ba29 12 * CyaSSL is distributed in the hope that it will be useful,
Vanger 0:b86d15c6ba29 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Vanger 0:b86d15c6ba29 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Vanger 0:b86d15c6ba29 15 * GNU General Public License for more details.
Vanger 0:b86d15c6ba29 16 *
Vanger 0:b86d15c6ba29 17 * You should have received a copy of the GNU General Public License
Vanger 0:b86d15c6ba29 18 * along with this program; if not, write to the Free Software
Vanger 0:b86d15c6ba29 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Vanger 0:b86d15c6ba29 20 */
Mike Fiore 6:cf58d49e1a86 21
Vanger 0:b86d15c6ba29 22 #ifdef HAVE_CONFIG_H
Vanger 0:b86d15c6ba29 23 #include <config.h>
Vanger 0:b86d15c6ba29 24 #endif
Mike Fiore 6:cf58d49e1a86 25
Vanger 0:b86d15c6ba29 26 #include <cyassl/ctaocrypt/settings.h>
Mike Fiore 6:cf58d49e1a86 27
Vanger 0:b86d15c6ba29 28 #ifdef CYASSL_SHA512
Mike Fiore 6:cf58d49e1a86 29
Vanger 0:b86d15c6ba29 30 #ifdef HAVE_FIPS
Vanger 0:b86d15c6ba29 31 /* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */
Vanger 0:b86d15c6ba29 32 #define FIPS_NO_WRAPPERS
Vanger 0:b86d15c6ba29 33 #endif
Mike Fiore 6:cf58d49e1a86 34
Vanger 0:b86d15c6ba29 35 #include <cyassl/ctaocrypt/sha512.h>
Vanger 0:b86d15c6ba29 36 #include <cyassl/ctaocrypt/logging.h>
Vanger 0:b86d15c6ba29 37 #include <cyassl/ctaocrypt/error-crypt.h>
Mike Fiore 6:cf58d49e1a86 38
Vanger 0:b86d15c6ba29 39 #ifdef NO_INLINE
Vanger 0:b86d15c6ba29 40 #include <cyassl/ctaocrypt/misc.h>
Vanger 0:b86d15c6ba29 41 #else
Vanger 0:b86d15c6ba29 42 #include <ctaocrypt/src/misc.c>
Vanger 0:b86d15c6ba29 43 #endif
Mike Fiore 6:cf58d49e1a86 44
Mike Fiore 6:cf58d49e1a86 45
Vanger 0:b86d15c6ba29 46 #ifndef min
Mike Fiore 6:cf58d49e1a86 47
Vanger 0:b86d15c6ba29 48 static INLINE word32 min(word32 a, word32 b)
Vanger 0:b86d15c6ba29 49 {
Vanger 0:b86d15c6ba29 50 return a > b ? b : a;
Vanger 0:b86d15c6ba29 51 }
Mike Fiore 6:cf58d49e1a86 52
Vanger 0:b86d15c6ba29 53 #endif /* min */
Mike Fiore 6:cf58d49e1a86 54
Mike Fiore 6:cf58d49e1a86 55
Vanger 0:b86d15c6ba29 56 int InitSha512(Sha512* sha512)
Vanger 0:b86d15c6ba29 57 {
Vanger 0:b86d15c6ba29 58 sha512->digest[0] = W64LIT(0x6a09e667f3bcc908);
Vanger 0:b86d15c6ba29 59 sha512->digest[1] = W64LIT(0xbb67ae8584caa73b);
Vanger 0:b86d15c6ba29 60 sha512->digest[2] = W64LIT(0x3c6ef372fe94f82b);
Vanger 0:b86d15c6ba29 61 sha512->digest[3] = W64LIT(0xa54ff53a5f1d36f1);
Vanger 0:b86d15c6ba29 62 sha512->digest[4] = W64LIT(0x510e527fade682d1);
Vanger 0:b86d15c6ba29 63 sha512->digest[5] = W64LIT(0x9b05688c2b3e6c1f);
Vanger 0:b86d15c6ba29 64 sha512->digest[6] = W64LIT(0x1f83d9abfb41bd6b);
Vanger 0:b86d15c6ba29 65 sha512->digest[7] = W64LIT(0x5be0cd19137e2179);
Mike Fiore 6:cf58d49e1a86 66
Vanger 0:b86d15c6ba29 67 sha512->buffLen = 0;
Vanger 0:b86d15c6ba29 68 sha512->loLen = 0;
Vanger 0:b86d15c6ba29 69 sha512->hiLen = 0;
Mike Fiore 6:cf58d49e1a86 70
Vanger 0:b86d15c6ba29 71 return 0;
Vanger 0:b86d15c6ba29 72 }
Mike Fiore 6:cf58d49e1a86 73
Mike Fiore 6:cf58d49e1a86 74
Vanger 0:b86d15c6ba29 75 static const word64 K512[80] = {
Vanger 0:b86d15c6ba29 76 W64LIT(0x428a2f98d728ae22), W64LIT(0x7137449123ef65cd),
Vanger 0:b86d15c6ba29 77 W64LIT(0xb5c0fbcfec4d3b2f), W64LIT(0xe9b5dba58189dbbc),
Vanger 0:b86d15c6ba29 78 W64LIT(0x3956c25bf348b538), W64LIT(0x59f111f1b605d019),
Vanger 0:b86d15c6ba29 79 W64LIT(0x923f82a4af194f9b), W64LIT(0xab1c5ed5da6d8118),
Vanger 0:b86d15c6ba29 80 W64LIT(0xd807aa98a3030242), W64LIT(0x12835b0145706fbe),
Vanger 0:b86d15c6ba29 81 W64LIT(0x243185be4ee4b28c), W64LIT(0x550c7dc3d5ffb4e2),
Vanger 0:b86d15c6ba29 82 W64LIT(0x72be5d74f27b896f), W64LIT(0x80deb1fe3b1696b1),
Vanger 0:b86d15c6ba29 83 W64LIT(0x9bdc06a725c71235), W64LIT(0xc19bf174cf692694),
Vanger 0:b86d15c6ba29 84 W64LIT(0xe49b69c19ef14ad2), W64LIT(0xefbe4786384f25e3),
Vanger 0:b86d15c6ba29 85 W64LIT(0x0fc19dc68b8cd5b5), W64LIT(0x240ca1cc77ac9c65),
Vanger 0:b86d15c6ba29 86 W64LIT(0x2de92c6f592b0275), W64LIT(0x4a7484aa6ea6e483),
Vanger 0:b86d15c6ba29 87 W64LIT(0x5cb0a9dcbd41fbd4), W64LIT(0x76f988da831153b5),
Vanger 0:b86d15c6ba29 88 W64LIT(0x983e5152ee66dfab), W64LIT(0xa831c66d2db43210),
Vanger 0:b86d15c6ba29 89 W64LIT(0xb00327c898fb213f), W64LIT(0xbf597fc7beef0ee4),
Vanger 0:b86d15c6ba29 90 W64LIT(0xc6e00bf33da88fc2), W64LIT(0xd5a79147930aa725),
Vanger 0:b86d15c6ba29 91 W64LIT(0x06ca6351e003826f), W64LIT(0x142929670a0e6e70),
Vanger 0:b86d15c6ba29 92 W64LIT(0x27b70a8546d22ffc), W64LIT(0x2e1b21385c26c926),
Vanger 0:b86d15c6ba29 93 W64LIT(0x4d2c6dfc5ac42aed), W64LIT(0x53380d139d95b3df),
Vanger 0:b86d15c6ba29 94 W64LIT(0x650a73548baf63de), W64LIT(0x766a0abb3c77b2a8),
Vanger 0:b86d15c6ba29 95 W64LIT(0x81c2c92e47edaee6), W64LIT(0x92722c851482353b),
Vanger 0:b86d15c6ba29 96 W64LIT(0xa2bfe8a14cf10364), W64LIT(0xa81a664bbc423001),
Vanger 0:b86d15c6ba29 97 W64LIT(0xc24b8b70d0f89791), W64LIT(0xc76c51a30654be30),
Vanger 0:b86d15c6ba29 98 W64LIT(0xd192e819d6ef5218), W64LIT(0xd69906245565a910),
Vanger 0:b86d15c6ba29 99 W64LIT(0xf40e35855771202a), W64LIT(0x106aa07032bbd1b8),
Vanger 0:b86d15c6ba29 100 W64LIT(0x19a4c116b8d2d0c8), W64LIT(0x1e376c085141ab53),
Vanger 0:b86d15c6ba29 101 W64LIT(0x2748774cdf8eeb99), W64LIT(0x34b0bcb5e19b48a8),
Vanger 0:b86d15c6ba29 102 W64LIT(0x391c0cb3c5c95a63), W64LIT(0x4ed8aa4ae3418acb),
Vanger 0:b86d15c6ba29 103 W64LIT(0x5b9cca4f7763e373), W64LIT(0x682e6ff3d6b2b8a3),
Vanger 0:b86d15c6ba29 104 W64LIT(0x748f82ee5defb2fc), W64LIT(0x78a5636f43172f60),
Vanger 0:b86d15c6ba29 105 W64LIT(0x84c87814a1f0ab72), W64LIT(0x8cc702081a6439ec),
Vanger 0:b86d15c6ba29 106 W64LIT(0x90befffa23631e28), W64LIT(0xa4506cebde82bde9),
Vanger 0:b86d15c6ba29 107 W64LIT(0xbef9a3f7b2c67915), W64LIT(0xc67178f2e372532b),
Vanger 0:b86d15c6ba29 108 W64LIT(0xca273eceea26619c), W64LIT(0xd186b8c721c0c207),
Vanger 0:b86d15c6ba29 109 W64LIT(0xeada7dd6cde0eb1e), W64LIT(0xf57d4f7fee6ed178),
Vanger 0:b86d15c6ba29 110 W64LIT(0x06f067aa72176fba), W64LIT(0x0a637dc5a2c898a6),
Vanger 0:b86d15c6ba29 111 W64LIT(0x113f9804bef90dae), W64LIT(0x1b710b35131c471b),
Vanger 0:b86d15c6ba29 112 W64LIT(0x28db77f523047d84), W64LIT(0x32caab7b40c72493),
Vanger 0:b86d15c6ba29 113 W64LIT(0x3c9ebe0a15c9bebc), W64LIT(0x431d67c49c100d4c),
Vanger 0:b86d15c6ba29 114 W64LIT(0x4cc5d4becb3e42b6), W64LIT(0x597f299cfc657e2a),
Vanger 0:b86d15c6ba29 115 W64LIT(0x5fcb6fab3ad6faec), W64LIT(0x6c44198c4a475817)
Vanger 0:b86d15c6ba29 116 };
Vanger 0:b86d15c6ba29 117
Mike Fiore 6:cf58d49e1a86 118
Vanger 0:b86d15c6ba29 119 #define blk0(i) (W[i] = sha512->buffer[i])
Vanger 4:571a0c156d9d 120 #define blk2(i) (W[i&15] += s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15])+0)
Vanger 0:b86d15c6ba29 121
Vanger 0:b86d15c6ba29 122 #define Ch(x,y,z) (z^(x&(y^z)))
Vanger 0:b86d15c6ba29 123 #define Maj(x,y,z) ((x&y)|(z&(x|y)))
Vanger 0:b86d15c6ba29 124
Vanger 0:b86d15c6ba29 125 #define a(i) T[(0-i)&7]
Vanger 0:b86d15c6ba29 126 #define b(i) T[(1-i)&7]
Vanger 0:b86d15c6ba29 127 #define c(i) T[(2-i)&7]
Vanger 0:b86d15c6ba29 128 #define d(i) T[(3-i)&7]
Vanger 0:b86d15c6ba29 129 #define e(i) T[(4-i)&7]
Vanger 0:b86d15c6ba29 130 #define f(i) T[(5-i)&7]
Vanger 0:b86d15c6ba29 131 #define g(i) T[(6-i)&7]
Vanger 0:b86d15c6ba29 132 #define h(i) T[(7-i)&7]
Vanger 0:b86d15c6ba29 133
Vanger 0:b86d15c6ba29 134 #define S0(x) (rotrFixed64(x,28)^rotrFixed64(x,34)^rotrFixed64(x,39))
Vanger 0:b86d15c6ba29 135 #define S1(x) (rotrFixed64(x,14)^rotrFixed64(x,18)^rotrFixed64(x,41))
Vanger 0:b86d15c6ba29 136 #define s0(x) (rotrFixed64(x,1)^rotrFixed64(x,8)^(x>>7))
Vanger 0:b86d15c6ba29 137 #define s1(x) (rotrFixed64(x,19)^rotrFixed64(x,61)^(x>>6))
Vanger 0:b86d15c6ba29 138
Vanger 4:571a0c156d9d 139 #define R(i) (j?blk2(i):blk0(i));\
Vanger 4:571a0c156d9d 140 h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+W[i&15];\
Vanger 0:b86d15c6ba29 141 d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))
Vanger 0:b86d15c6ba29 142
Vanger 0:b86d15c6ba29 143 #define blk384(i) (W[i] = sha384->buffer[i])
Vanger 0:b86d15c6ba29 144
Vanger 4:571a0c156d9d 145 #define R2(i) (j?blk2(i):blk384(i));\
Vanger 4:571a0c156d9d 146 h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+W[i&15];\
Vanger 4:571a0c156d9d 147 d(i)+=h(i);\
Vanger 4:571a0c156d9d 148 h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))
Vanger 0:b86d15c6ba29 149
Mike Fiore 6:cf58d49e1a86 150
Vanger 0:b86d15c6ba29 151 static int Transform(Sha512* sha512)
Vanger 0:b86d15c6ba29 152 {
Vanger 0:b86d15c6ba29 153 const word64* K = K512;
Mike Fiore 6:cf58d49e1a86 154
Vanger 0:b86d15c6ba29 155 word32 j;
Vanger 0:b86d15c6ba29 156 word64 T[8];
Mike Fiore 6:cf58d49e1a86 157
Vanger 0:b86d15c6ba29 158 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 159 word64* W;
Mike Fiore 6:cf58d49e1a86 160
Vanger 0:b86d15c6ba29 161 W = (word64*) XMALLOC(sizeof(word64) * 16, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 162 if (W == NULL)
Vanger 0:b86d15c6ba29 163 return MEMORY_E;
Vanger 0:b86d15c6ba29 164 #else
Vanger 0:b86d15c6ba29 165 word64 W[16];
Vanger 0:b86d15c6ba29 166 #endif
Mike Fiore 6:cf58d49e1a86 167
Vanger 0:b86d15c6ba29 168 /* Copy digest to working vars */
Vanger 0:b86d15c6ba29 169 XMEMCPY(T, sha512->digest, sizeof(T));
Mike Fiore 6:cf58d49e1a86 170
Vanger 0:b86d15c6ba29 171 #ifdef USE_SLOW_SHA2
Vanger 0:b86d15c6ba29 172 /* over twice as small, but 50% slower */
Vanger 0:b86d15c6ba29 173 /* 80 operations, not unrolled */
Vanger 0:b86d15c6ba29 174 for (j = 0; j < 80; j += 16) {
Vanger 0:b86d15c6ba29 175 int m;
Vanger 0:b86d15c6ba29 176 for (m = 0; m < 16; m++) { /* braces needed here for macros {} */
Vanger 0:b86d15c6ba29 177 R(m);
Vanger 0:b86d15c6ba29 178 }
Vanger 0:b86d15c6ba29 179 }
Vanger 0:b86d15c6ba29 180 #else
Vanger 0:b86d15c6ba29 181 /* 80 operations, partially loop unrolled */
Vanger 0:b86d15c6ba29 182 for (j = 0; j < 80; j += 16) {
Vanger 0:b86d15c6ba29 183 R( 0); R( 1); R( 2); R( 3);
Vanger 0:b86d15c6ba29 184 R( 4); R( 5); R( 6); R( 7);
Vanger 0:b86d15c6ba29 185 R( 8); R( 9); R(10); R(11);
Vanger 0:b86d15c6ba29 186 R(12); R(13); R(14); R(15);
Vanger 0:b86d15c6ba29 187 }
Vanger 0:b86d15c6ba29 188 #endif /* USE_SLOW_SHA2 */
Mike Fiore 6:cf58d49e1a86 189
Vanger 0:b86d15c6ba29 190 /* Add the working vars back into digest */
Mike Fiore 6:cf58d49e1a86 191
Vanger 0:b86d15c6ba29 192 sha512->digest[0] += a(0);
Vanger 0:b86d15c6ba29 193 sha512->digest[1] += b(0);
Vanger 0:b86d15c6ba29 194 sha512->digest[2] += c(0);
Vanger 0:b86d15c6ba29 195 sha512->digest[3] += d(0);
Vanger 0:b86d15c6ba29 196 sha512->digest[4] += e(0);
Vanger 0:b86d15c6ba29 197 sha512->digest[5] += f(0);
Vanger 0:b86d15c6ba29 198 sha512->digest[6] += g(0);
Vanger 0:b86d15c6ba29 199 sha512->digest[7] += h(0);
Mike Fiore 6:cf58d49e1a86 200
Vanger 0:b86d15c6ba29 201 /* Wipe variables */
Vanger 0:b86d15c6ba29 202 XMEMSET(W, 0, sizeof(word64) * 16);
Vanger 0:b86d15c6ba29 203 XMEMSET(T, 0, sizeof(T));
Mike Fiore 6:cf58d49e1a86 204
Vanger 0:b86d15c6ba29 205 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 206 XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 207 #endif
Mike Fiore 6:cf58d49e1a86 208
Vanger 0:b86d15c6ba29 209 return 0;
Vanger 0:b86d15c6ba29 210 }
Mike Fiore 6:cf58d49e1a86 211
Mike Fiore 6:cf58d49e1a86 212
Vanger 0:b86d15c6ba29 213 static INLINE void AddLength(Sha512* sha512, word32 len)
Vanger 0:b86d15c6ba29 214 {
Vanger 0:b86d15c6ba29 215 word32 tmp = sha512->loLen;
Vanger 0:b86d15c6ba29 216 if ( (sha512->loLen += len) < tmp)
Vanger 0:b86d15c6ba29 217 sha512->hiLen++; /* carry low to high */
Vanger 0:b86d15c6ba29 218 }
Mike Fiore 6:cf58d49e1a86 219
Mike Fiore 6:cf58d49e1a86 220
Vanger 0:b86d15c6ba29 221 int Sha512Update(Sha512* sha512, const byte* data, word32 len)
Vanger 0:b86d15c6ba29 222 {
Vanger 0:b86d15c6ba29 223 /* do block size increments */
Vanger 0:b86d15c6ba29 224 byte* local = (byte*)sha512->buffer;
Mike Fiore 6:cf58d49e1a86 225
Vanger 0:b86d15c6ba29 226 while (len) {
Vanger 0:b86d15c6ba29 227 word32 add = min(len, SHA512_BLOCK_SIZE - sha512->buffLen);
Vanger 0:b86d15c6ba29 228 XMEMCPY(&local[sha512->buffLen], data, add);
Mike Fiore 6:cf58d49e1a86 229
Vanger 0:b86d15c6ba29 230 sha512->buffLen += add;
Vanger 0:b86d15c6ba29 231 data += add;
Vanger 0:b86d15c6ba29 232 len -= add;
Mike Fiore 6:cf58d49e1a86 233
Vanger 0:b86d15c6ba29 234 if (sha512->buffLen == SHA512_BLOCK_SIZE) {
Vanger 0:b86d15c6ba29 235 int ret;
Mike Fiore 6:cf58d49e1a86 236
Vanger 0:b86d15c6ba29 237 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 238 ByteReverseWords64(sha512->buffer, sha512->buffer,
Vanger 0:b86d15c6ba29 239 SHA512_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 240 #endif
Vanger 0:b86d15c6ba29 241 ret = Transform(sha512);
Vanger 0:b86d15c6ba29 242 if (ret != 0)
Vanger 0:b86d15c6ba29 243 return ret;
Mike Fiore 6:cf58d49e1a86 244
Vanger 0:b86d15c6ba29 245 AddLength(sha512, SHA512_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 246 sha512->buffLen = 0;
Vanger 0:b86d15c6ba29 247 }
Vanger 0:b86d15c6ba29 248 }
Vanger 0:b86d15c6ba29 249 return 0;
Vanger 0:b86d15c6ba29 250 }
Mike Fiore 6:cf58d49e1a86 251
Mike Fiore 6:cf58d49e1a86 252
Vanger 0:b86d15c6ba29 253 int Sha512Final(Sha512* sha512, byte* hash)
Vanger 0:b86d15c6ba29 254 {
Vanger 0:b86d15c6ba29 255 byte* local = (byte*)sha512->buffer;
Vanger 0:b86d15c6ba29 256 int ret;
Mike Fiore 6:cf58d49e1a86 257
Vanger 0:b86d15c6ba29 258 AddLength(sha512, sha512->buffLen); /* before adding pads */
Mike Fiore 6:cf58d49e1a86 259
Vanger 0:b86d15c6ba29 260 local[sha512->buffLen++] = 0x80; /* add 1 */
Mike Fiore 6:cf58d49e1a86 261
Vanger 0:b86d15c6ba29 262 /* pad with zeros */
Vanger 0:b86d15c6ba29 263 if (sha512->buffLen > SHA512_PAD_SIZE) {
Vanger 0:b86d15c6ba29 264 XMEMSET(&local[sha512->buffLen], 0, SHA512_BLOCK_SIZE -sha512->buffLen);
Vanger 0:b86d15c6ba29 265 sha512->buffLen += SHA512_BLOCK_SIZE - sha512->buffLen;
Mike Fiore 6:cf58d49e1a86 266
Vanger 0:b86d15c6ba29 267 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 268 ByteReverseWords64(sha512->buffer,sha512->buffer,SHA512_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 269 #endif
Vanger 0:b86d15c6ba29 270 ret = Transform(sha512);
Vanger 0:b86d15c6ba29 271 if (ret != 0)
Vanger 0:b86d15c6ba29 272 return ret;
Mike Fiore 6:cf58d49e1a86 273
Vanger 0:b86d15c6ba29 274 sha512->buffLen = 0;
Vanger 0:b86d15c6ba29 275 }
Vanger 0:b86d15c6ba29 276 XMEMSET(&local[sha512->buffLen], 0, SHA512_PAD_SIZE - sha512->buffLen);
Vanger 0:b86d15c6ba29 277
Vanger 0:b86d15c6ba29 278 /* put lengths in bits */
Vanger 0:b86d15c6ba29 279 sha512->hiLen = (sha512->loLen >> (8*sizeof(sha512->loLen) - 3)) +
Vanger 0:b86d15c6ba29 280 (sha512->hiLen << 3);
Vanger 0:b86d15c6ba29 281 sha512->loLen = sha512->loLen << 3;
Mike Fiore 6:cf58d49e1a86 282
Vanger 0:b86d15c6ba29 283 /* store lengths */
Vanger 0:b86d15c6ba29 284 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 285 ByteReverseWords64(sha512->buffer, sha512->buffer, SHA512_PAD_SIZE);
Vanger 0:b86d15c6ba29 286 #endif
Vanger 0:b86d15c6ba29 287 /* ! length ordering dependent on digest endian type ! */
Vanger 0:b86d15c6ba29 288 sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 2] = sha512->hiLen;
Vanger 0:b86d15c6ba29 289 sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 1] = sha512->loLen;
Mike Fiore 6:cf58d49e1a86 290
Vanger 0:b86d15c6ba29 291 ret = Transform(sha512);
Vanger 0:b86d15c6ba29 292 if (ret != 0)
Vanger 0:b86d15c6ba29 293 return ret;
Mike Fiore 6:cf58d49e1a86 294
Vanger 0:b86d15c6ba29 295 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 296 ByteReverseWords64(sha512->digest, sha512->digest, SHA512_DIGEST_SIZE);
Vanger 0:b86d15c6ba29 297 #endif
Vanger 0:b86d15c6ba29 298 XMEMCPY(hash, sha512->digest, SHA512_DIGEST_SIZE);
Mike Fiore 6:cf58d49e1a86 299
Vanger 0:b86d15c6ba29 300 return InitSha512(sha512); /* reset state */
Vanger 0:b86d15c6ba29 301 }
Mike Fiore 6:cf58d49e1a86 302
Mike Fiore 6:cf58d49e1a86 303
Vanger 0:b86d15c6ba29 304 int Sha512Hash(const byte* data, word32 len, byte* hash)
Vanger 0:b86d15c6ba29 305 {
Vanger 0:b86d15c6ba29 306 int ret = 0;
Vanger 0:b86d15c6ba29 307 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 308 Sha512* sha512;
Vanger 0:b86d15c6ba29 309 #else
Vanger 0:b86d15c6ba29 310 Sha512 sha512[1];
Vanger 0:b86d15c6ba29 311 #endif
Mike Fiore 6:cf58d49e1a86 312
Vanger 0:b86d15c6ba29 313 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 314 sha512 = (Sha512*)XMALLOC(sizeof(Sha512), NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 315 if (sha512 == NULL)
Vanger 0:b86d15c6ba29 316 return MEMORY_E;
Vanger 0:b86d15c6ba29 317 #endif
Vanger 0:b86d15c6ba29 318
Vanger 0:b86d15c6ba29 319 if ((ret = InitSha512(sha512)) != 0) {
Vanger 0:b86d15c6ba29 320 CYASSL_MSG("InitSha512 failed");
Vanger 0:b86d15c6ba29 321 }
Vanger 0:b86d15c6ba29 322 else if ((ret = Sha512Update(sha512, data, len)) != 0) {
Vanger 0:b86d15c6ba29 323 CYASSL_MSG("Sha512Update failed");
Vanger 0:b86d15c6ba29 324 }
Vanger 0:b86d15c6ba29 325 else if ((ret = Sha512Final(sha512, hash)) != 0) {
Vanger 0:b86d15c6ba29 326 CYASSL_MSG("Sha512Final failed");
Vanger 0:b86d15c6ba29 327 }
Vanger 0:b86d15c6ba29 328
Vanger 0:b86d15c6ba29 329 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 330 XFREE(sha512, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 331 #endif
Vanger 0:b86d15c6ba29 332
Vanger 0:b86d15c6ba29 333 return ret;
Vanger 0:b86d15c6ba29 334 }
Mike Fiore 6:cf58d49e1a86 335
Mike Fiore 6:cf58d49e1a86 336
Vanger 0:b86d15c6ba29 337 #ifdef CYASSL_SHA384
Mike Fiore 6:cf58d49e1a86 338
Vanger 0:b86d15c6ba29 339 int InitSha384(Sha384* sha384)
Vanger 0:b86d15c6ba29 340 {
Vanger 0:b86d15c6ba29 341 sha384->digest[0] = W64LIT(0xcbbb9d5dc1059ed8);
Vanger 0:b86d15c6ba29 342 sha384->digest[1] = W64LIT(0x629a292a367cd507);
Vanger 0:b86d15c6ba29 343 sha384->digest[2] = W64LIT(0x9159015a3070dd17);
Vanger 0:b86d15c6ba29 344 sha384->digest[3] = W64LIT(0x152fecd8f70e5939);
Vanger 0:b86d15c6ba29 345 sha384->digest[4] = W64LIT(0x67332667ffc00b31);
Vanger 0:b86d15c6ba29 346 sha384->digest[5] = W64LIT(0x8eb44a8768581511);
Vanger 0:b86d15c6ba29 347 sha384->digest[6] = W64LIT(0xdb0c2e0d64f98fa7);
Vanger 0:b86d15c6ba29 348 sha384->digest[7] = W64LIT(0x47b5481dbefa4fa4);
Mike Fiore 6:cf58d49e1a86 349
Vanger 0:b86d15c6ba29 350 sha384->buffLen = 0;
Vanger 0:b86d15c6ba29 351 sha384->loLen = 0;
Vanger 0:b86d15c6ba29 352 sha384->hiLen = 0;
Mike Fiore 6:cf58d49e1a86 353
Vanger 0:b86d15c6ba29 354 return 0;
Vanger 0:b86d15c6ba29 355 }
Mike Fiore 6:cf58d49e1a86 356
Mike Fiore 6:cf58d49e1a86 357
Vanger 0:b86d15c6ba29 358 static int Transform384(Sha384* sha384)
Vanger 0:b86d15c6ba29 359 {
Vanger 0:b86d15c6ba29 360 const word64* K = K512;
Mike Fiore 6:cf58d49e1a86 361
Vanger 0:b86d15c6ba29 362 word32 j;
Vanger 0:b86d15c6ba29 363 word64 T[8];
Mike Fiore 6:cf58d49e1a86 364
Vanger 0:b86d15c6ba29 365 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 366 word64* W;
Mike Fiore 6:cf58d49e1a86 367
Vanger 0:b86d15c6ba29 368 W = (word64*) XMALLOC(sizeof(word64) * 16, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 369 if (W == NULL)
Vanger 0:b86d15c6ba29 370 return MEMORY_E;
Vanger 0:b86d15c6ba29 371 #else
Vanger 0:b86d15c6ba29 372 word64 W[16];
Vanger 0:b86d15c6ba29 373 #endif
Mike Fiore 6:cf58d49e1a86 374
Vanger 0:b86d15c6ba29 375 /* Copy digest to working vars */
Vanger 0:b86d15c6ba29 376 XMEMCPY(T, sha384->digest, sizeof(T));
Mike Fiore 6:cf58d49e1a86 377
Vanger 0:b86d15c6ba29 378 #ifdef USE_SLOW_SHA2
Vanger 0:b86d15c6ba29 379 /* over twice as small, but 50% slower */
Vanger 0:b86d15c6ba29 380 /* 80 operations, not unrolled */
Vanger 0:b86d15c6ba29 381 for (j = 0; j < 80; j += 16) {
Vanger 0:b86d15c6ba29 382 int m;
Vanger 0:b86d15c6ba29 383 for (m = 0; m < 16; m++) { /* braces needed for macros {} */
Vanger 0:b86d15c6ba29 384 R2(m);
Vanger 0:b86d15c6ba29 385 }
Vanger 0:b86d15c6ba29 386 }
Vanger 0:b86d15c6ba29 387 #else
Vanger 0:b86d15c6ba29 388 /* 80 operations, partially loop unrolled */
Vanger 0:b86d15c6ba29 389 for (j = 0; j < 80; j += 16) {
Vanger 0:b86d15c6ba29 390 R2( 0); R2( 1); R2( 2); R2( 3);
Vanger 0:b86d15c6ba29 391 R2( 4); R2( 5); R2( 6); R2( 7);
Vanger 0:b86d15c6ba29 392 R2( 8); R2( 9); R2(10); R2(11);
Vanger 0:b86d15c6ba29 393 R2(12); R2(13); R2(14); R2(15);
Vanger 0:b86d15c6ba29 394 }
Vanger 0:b86d15c6ba29 395 #endif /* USE_SLOW_SHA2 */
Mike Fiore 6:cf58d49e1a86 396
Vanger 0:b86d15c6ba29 397 /* Add the working vars back into digest */
Mike Fiore 6:cf58d49e1a86 398
Vanger 0:b86d15c6ba29 399 sha384->digest[0] += a(0);
Vanger 0:b86d15c6ba29 400 sha384->digest[1] += b(0);
Vanger 0:b86d15c6ba29 401 sha384->digest[2] += c(0);
Vanger 0:b86d15c6ba29 402 sha384->digest[3] += d(0);
Vanger 0:b86d15c6ba29 403 sha384->digest[4] += e(0);
Vanger 0:b86d15c6ba29 404 sha384->digest[5] += f(0);
Vanger 0:b86d15c6ba29 405 sha384->digest[6] += g(0);
Vanger 0:b86d15c6ba29 406 sha384->digest[7] += h(0);
Mike Fiore 6:cf58d49e1a86 407
Vanger 0:b86d15c6ba29 408 /* Wipe variables */
Vanger 0:b86d15c6ba29 409 XMEMSET(W, 0, sizeof(word64) * 16);
Vanger 0:b86d15c6ba29 410 XMEMSET(T, 0, sizeof(T));
Mike Fiore 6:cf58d49e1a86 411
Vanger 0:b86d15c6ba29 412 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 413 XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 414 #endif
Mike Fiore 6:cf58d49e1a86 415
Vanger 0:b86d15c6ba29 416 return 0;
Vanger 0:b86d15c6ba29 417 }
Mike Fiore 6:cf58d49e1a86 418
Mike Fiore 6:cf58d49e1a86 419
Vanger 0:b86d15c6ba29 420 static INLINE void AddLength384(Sha384* sha384, word32 len)
Vanger 0:b86d15c6ba29 421 {
Vanger 0:b86d15c6ba29 422 word32 tmp = sha384->loLen;
Vanger 0:b86d15c6ba29 423 if ( (sha384->loLen += len) < tmp)
Vanger 0:b86d15c6ba29 424 sha384->hiLen++; /* carry low to high */
Vanger 0:b86d15c6ba29 425 }
Mike Fiore 6:cf58d49e1a86 426
Mike Fiore 6:cf58d49e1a86 427
Vanger 0:b86d15c6ba29 428 int Sha384Update(Sha384* sha384, const byte* data, word32 len)
Vanger 0:b86d15c6ba29 429 {
Vanger 0:b86d15c6ba29 430 /* do block size increments */
Vanger 0:b86d15c6ba29 431 byte* local = (byte*)sha384->buffer;
Mike Fiore 6:cf58d49e1a86 432
Vanger 0:b86d15c6ba29 433 while (len) {
Vanger 0:b86d15c6ba29 434 word32 add = min(len, SHA384_BLOCK_SIZE - sha384->buffLen);
Vanger 0:b86d15c6ba29 435 XMEMCPY(&local[sha384->buffLen], data, add);
Mike Fiore 6:cf58d49e1a86 436
Vanger 0:b86d15c6ba29 437 sha384->buffLen += add;
Vanger 0:b86d15c6ba29 438 data += add;
Vanger 0:b86d15c6ba29 439 len -= add;
Mike Fiore 6:cf58d49e1a86 440
Vanger 0:b86d15c6ba29 441 if (sha384->buffLen == SHA384_BLOCK_SIZE) {
Vanger 0:b86d15c6ba29 442 int ret;
Mike Fiore 6:cf58d49e1a86 443
Vanger 0:b86d15c6ba29 444 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 445 ByteReverseWords64(sha384->buffer, sha384->buffer,
Vanger 0:b86d15c6ba29 446 SHA384_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 447 #endif
Vanger 0:b86d15c6ba29 448 ret = Transform384(sha384);
Vanger 0:b86d15c6ba29 449 if (ret != 0)
Vanger 0:b86d15c6ba29 450 return ret;
Mike Fiore 6:cf58d49e1a86 451
Vanger 0:b86d15c6ba29 452 AddLength384(sha384, SHA384_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 453 sha384->buffLen = 0;
Vanger 0:b86d15c6ba29 454 }
Vanger 0:b86d15c6ba29 455 }
Vanger 0:b86d15c6ba29 456 return 0;
Vanger 0:b86d15c6ba29 457 }
Mike Fiore 6:cf58d49e1a86 458
Mike Fiore 6:cf58d49e1a86 459
Vanger 0:b86d15c6ba29 460 int Sha384Final(Sha384* sha384, byte* hash)
Vanger 0:b86d15c6ba29 461 {
Vanger 0:b86d15c6ba29 462 byte* local = (byte*)sha384->buffer;
Vanger 0:b86d15c6ba29 463 int ret;
Mike Fiore 6:cf58d49e1a86 464
Vanger 0:b86d15c6ba29 465 AddLength384(sha384, sha384->buffLen); /* before adding pads */
Mike Fiore 6:cf58d49e1a86 466
Vanger 0:b86d15c6ba29 467 local[sha384->buffLen++] = 0x80; /* add 1 */
Mike Fiore 6:cf58d49e1a86 468
Vanger 0:b86d15c6ba29 469 /* pad with zeros */
Vanger 0:b86d15c6ba29 470 if (sha384->buffLen > SHA384_PAD_SIZE) {
Vanger 0:b86d15c6ba29 471 XMEMSET(&local[sha384->buffLen], 0, SHA384_BLOCK_SIZE -sha384->buffLen);
Vanger 0:b86d15c6ba29 472 sha384->buffLen += SHA384_BLOCK_SIZE - sha384->buffLen;
Mike Fiore 6:cf58d49e1a86 473
Vanger 0:b86d15c6ba29 474 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 475 ByteReverseWords64(sha384->buffer,sha384->buffer,SHA384_BLOCK_SIZE);
Vanger 0:b86d15c6ba29 476 #endif
Vanger 0:b86d15c6ba29 477 ret = Transform384(sha384);
Vanger 0:b86d15c6ba29 478 if (ret != 0)
Vanger 0:b86d15c6ba29 479 return ret;
Mike Fiore 6:cf58d49e1a86 480
Vanger 0:b86d15c6ba29 481 sha384->buffLen = 0;
Vanger 0:b86d15c6ba29 482 }
Vanger 0:b86d15c6ba29 483 XMEMSET(&local[sha384->buffLen], 0, SHA384_PAD_SIZE - sha384->buffLen);
Vanger 0:b86d15c6ba29 484
Vanger 0:b86d15c6ba29 485 /* put lengths in bits */
Vanger 0:b86d15c6ba29 486 sha384->hiLen = (sha384->loLen >> (8*sizeof(sha384->loLen) - 3)) +
Vanger 0:b86d15c6ba29 487 (sha384->hiLen << 3);
Vanger 0:b86d15c6ba29 488 sha384->loLen = sha384->loLen << 3;
Mike Fiore 6:cf58d49e1a86 489
Vanger 0:b86d15c6ba29 490 /* store lengths */
Vanger 0:b86d15c6ba29 491 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 492 ByteReverseWords64(sha384->buffer, sha384->buffer, SHA384_PAD_SIZE);
Vanger 0:b86d15c6ba29 493 #endif
Vanger 0:b86d15c6ba29 494 /* ! length ordering dependent on digest endian type ! */
Vanger 0:b86d15c6ba29 495 sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 2] = sha384->hiLen;
Vanger 0:b86d15c6ba29 496 sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 1] = sha384->loLen;
Mike Fiore 6:cf58d49e1a86 497
Vanger 0:b86d15c6ba29 498 ret = Transform384(sha384);
Vanger 0:b86d15c6ba29 499 if (ret != 0)
Vanger 0:b86d15c6ba29 500 return ret;
Mike Fiore 6:cf58d49e1a86 501
Vanger 0:b86d15c6ba29 502 #ifdef LITTLE_ENDIAN_ORDER
Vanger 0:b86d15c6ba29 503 ByteReverseWords64(sha384->digest, sha384->digest, SHA384_DIGEST_SIZE);
Vanger 0:b86d15c6ba29 504 #endif
Vanger 0:b86d15c6ba29 505 XMEMCPY(hash, sha384->digest, SHA384_DIGEST_SIZE);
Mike Fiore 6:cf58d49e1a86 506
Vanger 0:b86d15c6ba29 507 return InitSha384(sha384); /* reset state */
Vanger 0:b86d15c6ba29 508 }
Mike Fiore 6:cf58d49e1a86 509
Mike Fiore 6:cf58d49e1a86 510
Vanger 0:b86d15c6ba29 511 int Sha384Hash(const byte* data, word32 len, byte* hash)
Vanger 0:b86d15c6ba29 512 {
Vanger 0:b86d15c6ba29 513 int ret = 0;
Vanger 0:b86d15c6ba29 514 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 515 Sha384* sha384;
Vanger 0:b86d15c6ba29 516 #else
Vanger 0:b86d15c6ba29 517 Sha384 sha384[1];
Vanger 0:b86d15c6ba29 518 #endif
Mike Fiore 6:cf58d49e1a86 519
Vanger 0:b86d15c6ba29 520 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 521 sha384 = (Sha384*)XMALLOC(sizeof(Sha384), NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 522 if (sha384 == NULL)
Vanger 0:b86d15c6ba29 523 return MEMORY_E;
Vanger 0:b86d15c6ba29 524 #endif
Mike Fiore 6:cf58d49e1a86 525
Vanger 0:b86d15c6ba29 526 if ((ret = InitSha384(sha384)) != 0) {
Vanger 0:b86d15c6ba29 527 CYASSL_MSG("InitSha384 failed");
Vanger 0:b86d15c6ba29 528 }
Vanger 0:b86d15c6ba29 529 else if ((ret = Sha384Update(sha384, data, len)) != 0) {
Vanger 0:b86d15c6ba29 530 CYASSL_MSG("Sha384Update failed");
Vanger 0:b86d15c6ba29 531 }
Vanger 0:b86d15c6ba29 532 else if ((ret = Sha384Final(sha384, hash)) != 0) {
Vanger 0:b86d15c6ba29 533 CYASSL_MSG("Sha384Final failed");
Vanger 0:b86d15c6ba29 534 }
Mike Fiore 6:cf58d49e1a86 535
Vanger 0:b86d15c6ba29 536 #ifdef CYASSL_SMALL_STACK
Vanger 0:b86d15c6ba29 537 XFREE(sha384, NULL, DYNAMIC_TYPE_TMP_BUFFER);
Vanger 0:b86d15c6ba29 538 #endif
Mike Fiore 6:cf58d49e1a86 539
Vanger 0:b86d15c6ba29 540 return ret;
Vanger 0:b86d15c6ba29 541 }
Mike Fiore 6:cf58d49e1a86 542
Vanger 0:b86d15c6ba29 543 #endif /* CYASSL_SHA384 */
Mike Fiore 6:cf58d49e1a86 544
Mike Fiore 6:cf58d49e1a86 545 #endif /* CYASSL_SHA512 */