Xuyi Wang / wolfSSL

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wolfcrypt/src/blake2b.c@4:1b0d80432c79, 2016-04-28 (annotated)

Committer:
wolfSSL
Date:
Thu Apr 28 00:57:21 2016 +0000
Revision:
4:1b0d80432c79
wolfSSL 3.9.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 4:1b0d80432c79 1 /*
wolfSSL 4:1b0d80432c79 2 BLAKE2 reference source code package - reference C implementations
wolfSSL 4:1b0d80432c79 3
wolfSSL 4:1b0d80432c79 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
wolfSSL 4:1b0d80432c79 5
wolfSSL 4:1b0d80432c79 6 To the extent possible under law, the author(s) have dedicated all copyright
wolfSSL 4:1b0d80432c79 7 and related and neighboring rights to this software to the public domain
wolfSSL 4:1b0d80432c79 8 worldwide. This software is distributed without any warranty.
wolfSSL 4:1b0d80432c79 9
wolfSSL 4:1b0d80432c79 10 You should have received a copy of the CC0 Public Domain Dedication along with
wolfSSL 4:1b0d80432c79 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
wolfSSL 4:1b0d80432c79 12 */
wolfSSL 4:1b0d80432c79 13 /* blake2b.c
wolfSSL 4:1b0d80432c79 14 *
wolfSSL 4:1b0d80432c79 15 * Copyright (C) 2006-2016 wolfSSL Inc.
wolfSSL 4:1b0d80432c79 16 *
wolfSSL 4:1b0d80432c79 17 * This file is part of wolfSSL.
wolfSSL 4:1b0d80432c79 18 *
wolfSSL 4:1b0d80432c79 19 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 4:1b0d80432c79 20 * it under the terms of the GNU General Public License as published by
wolfSSL 4:1b0d80432c79 21 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 4:1b0d80432c79 22 * (at your option) any later version.
wolfSSL 4:1b0d80432c79 23 *
wolfSSL 4:1b0d80432c79 24 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 4:1b0d80432c79 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 4:1b0d80432c79 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 4:1b0d80432c79 27 * GNU General Public License for more details.
wolfSSL 4:1b0d80432c79 28 *
wolfSSL 4:1b0d80432c79 29 * You should have received a copy of the GNU General Public License
wolfSSL 4:1b0d80432c79 30 * along with this program; if not, write to the Free Software
wolfSSL 4:1b0d80432c79 31 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 4:1b0d80432c79 32 */
wolfSSL 4:1b0d80432c79 33
wolfSSL 4:1b0d80432c79 34
wolfSSL 4:1b0d80432c79 35
wolfSSL 4:1b0d80432c79 36 #ifdef HAVE_CONFIG_H
wolfSSL 4:1b0d80432c79 37 #include <config.h>
wolfSSL 4:1b0d80432c79 38 #endif
wolfSSL 4:1b0d80432c79 39
wolfSSL 4:1b0d80432c79 40 #include <wolfssl/wolfcrypt/settings.h>
wolfSSL 4:1b0d80432c79 41
wolfSSL 4:1b0d80432c79 42 #ifdef HAVE_BLAKE2
wolfSSL 4:1b0d80432c79 43
wolfSSL 4:1b0d80432c79 44 #include <wolfssl/wolfcrypt/blake2.h>
wolfSSL 4:1b0d80432c79 45 #include <wolfssl/wolfcrypt/blake2-impl.h>
wolfSSL 4:1b0d80432c79 46
wolfSSL 4:1b0d80432c79 47
wolfSSL 4:1b0d80432c79 48 static const word64 blake2b_IV[8] =
wolfSSL 4:1b0d80432c79 49 {
wolfSSL 4:1b0d80432c79 50 0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
wolfSSL 4:1b0d80432c79 51 0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
wolfSSL 4:1b0d80432c79 52 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
wolfSSL 4:1b0d80432c79 53 0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
wolfSSL 4:1b0d80432c79 54 };
wolfSSL 4:1b0d80432c79 55
wolfSSL 4:1b0d80432c79 56 static const byte blake2b_sigma[12][16] =
wolfSSL 4:1b0d80432c79 57 {
wolfSSL 4:1b0d80432c79 58 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
wolfSSL 4:1b0d80432c79 59 { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
wolfSSL 4:1b0d80432c79 60 { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
wolfSSL 4:1b0d80432c79 61 { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
wolfSSL 4:1b0d80432c79 62 { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
wolfSSL 4:1b0d80432c79 63 { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
wolfSSL 4:1b0d80432c79 64 { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
wolfSSL 4:1b0d80432c79 65 { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
wolfSSL 4:1b0d80432c79 66 { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
wolfSSL 4:1b0d80432c79 67 { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
wolfSSL 4:1b0d80432c79 68 { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
wolfSSL 4:1b0d80432c79 69 { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
wolfSSL 4:1b0d80432c79 70 };
wolfSSL 4:1b0d80432c79 71
wolfSSL 4:1b0d80432c79 72
wolfSSL 4:1b0d80432c79 73 static INLINE int blake2b_set_lastnode( blake2b_state *S )
wolfSSL 4:1b0d80432c79 74 {
wolfSSL 4:1b0d80432c79 75 S->f[1] = ~0ULL;
wolfSSL 4:1b0d80432c79 76 return 0;
wolfSSL 4:1b0d80432c79 77 }
wolfSSL 4:1b0d80432c79 78
wolfSSL 4:1b0d80432c79 79 /* Some helper functions, not necessarily useful */
wolfSSL 4:1b0d80432c79 80 static INLINE int blake2b_set_lastblock( blake2b_state *S )
wolfSSL 4:1b0d80432c79 81 {
wolfSSL 4:1b0d80432c79 82 if( S->last_node ) blake2b_set_lastnode( S );
wolfSSL 4:1b0d80432c79 83
wolfSSL 4:1b0d80432c79 84 S->f[0] = ~0ULL;
wolfSSL 4:1b0d80432c79 85 return 0;
wolfSSL 4:1b0d80432c79 86 }
wolfSSL 4:1b0d80432c79 87
wolfSSL 4:1b0d80432c79 88 static INLINE int blake2b_increment_counter( blake2b_state *S, const word64
wolfSSL 4:1b0d80432c79 89 inc )
wolfSSL 4:1b0d80432c79 90 {
wolfSSL 4:1b0d80432c79 91 S->t[0] += inc;
wolfSSL 4:1b0d80432c79 92 S->t[1] += ( S->t[0] < inc );
wolfSSL 4:1b0d80432c79 93 return 0;
wolfSSL 4:1b0d80432c79 94 }
wolfSSL 4:1b0d80432c79 95
wolfSSL 4:1b0d80432c79 96 static INLINE int blake2b_init0( blake2b_state *S )
wolfSSL 4:1b0d80432c79 97 {
wolfSSL 4:1b0d80432c79 98 int i;
wolfSSL 4:1b0d80432c79 99 XMEMSET( S, 0, sizeof( blake2b_state ) );
wolfSSL 4:1b0d80432c79 100
wolfSSL 4:1b0d80432c79 101 for( i = 0; i < 8; ++i ) S->h[i] = blake2b_IV[i];
wolfSSL 4:1b0d80432c79 102
wolfSSL 4:1b0d80432c79 103 return 0;
wolfSSL 4:1b0d80432c79 104 }
wolfSSL 4:1b0d80432c79 105
wolfSSL 4:1b0d80432c79 106 /* init xors IV with input parameter block */
wolfSSL 4:1b0d80432c79 107 int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
wolfSSL 4:1b0d80432c79 108 {
wolfSSL 4:1b0d80432c79 109 word32 i;
wolfSSL 4:1b0d80432c79 110 byte *p ;
wolfSSL 4:1b0d80432c79 111 blake2b_init0( S );
wolfSSL 4:1b0d80432c79 112 p = ( byte * )( P );
wolfSSL 4:1b0d80432c79 113
wolfSSL 4:1b0d80432c79 114 /* IV XOR ParamBlock */
wolfSSL 4:1b0d80432c79 115 for( i = 0; i < 8; ++i )
wolfSSL 4:1b0d80432c79 116 S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );
wolfSSL 4:1b0d80432c79 117
wolfSSL 4:1b0d80432c79 118 return 0;
wolfSSL 4:1b0d80432c79 119 }
wolfSSL 4:1b0d80432c79 120
wolfSSL 4:1b0d80432c79 121
wolfSSL 4:1b0d80432c79 122
wolfSSL 4:1b0d80432c79 123 int blake2b_init( blake2b_state *S, const byte outlen )
wolfSSL 4:1b0d80432c79 124 {
wolfSSL 4:1b0d80432c79 125 blake2b_param P[1];
wolfSSL 4:1b0d80432c79 126
wolfSSL 4:1b0d80432c79 127 if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
wolfSSL 4:1b0d80432c79 128
wolfSSL 4:1b0d80432c79 129 P->digest_length = outlen;
wolfSSL 4:1b0d80432c79 130 P->key_length = 0;
wolfSSL 4:1b0d80432c79 131 P->fanout = 1;
wolfSSL 4:1b0d80432c79 132 P->depth = 1;
wolfSSL 4:1b0d80432c79 133 store32( &P->leaf_length, 0 );
wolfSSL 4:1b0d80432c79 134 store64( &P->node_offset, 0 );
wolfSSL 4:1b0d80432c79 135 P->node_depth = 0;
wolfSSL 4:1b0d80432c79 136 P->inner_length = 0;
wolfSSL 4:1b0d80432c79 137 XMEMSET( P->reserved, 0, sizeof( P->reserved ) );
wolfSSL 4:1b0d80432c79 138 XMEMSET( P->salt, 0, sizeof( P->salt ) );
wolfSSL 4:1b0d80432c79 139 XMEMSET( P->personal, 0, sizeof( P->personal ) );
wolfSSL 4:1b0d80432c79 140 return blake2b_init_param( S, P );
wolfSSL 4:1b0d80432c79 141 }
wolfSSL 4:1b0d80432c79 142
wolfSSL 4:1b0d80432c79 143
wolfSSL 4:1b0d80432c79 144 int blake2b_init_key( blake2b_state *S, const byte outlen, const void *key,
wolfSSL 4:1b0d80432c79 145 const byte keylen )
wolfSSL 4:1b0d80432c79 146 {
wolfSSL 4:1b0d80432c79 147 blake2b_param P[1];
wolfSSL 4:1b0d80432c79 148
wolfSSL 4:1b0d80432c79 149 if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
wolfSSL 4:1b0d80432c79 150
wolfSSL 4:1b0d80432c79 151 if ( !key || !keylen || keylen > BLAKE2B_KEYBYTES ) return -1;
wolfSSL 4:1b0d80432c79 152
wolfSSL 4:1b0d80432c79 153 P->digest_length = outlen;
wolfSSL 4:1b0d80432c79 154 P->key_length = keylen;
wolfSSL 4:1b0d80432c79 155 P->fanout = 1;
wolfSSL 4:1b0d80432c79 156 P->depth = 1;
wolfSSL 4:1b0d80432c79 157 store32( &P->leaf_length, 0 );
wolfSSL 4:1b0d80432c79 158 store64( &P->node_offset, 0 );
wolfSSL 4:1b0d80432c79 159 P->node_depth = 0;
wolfSSL 4:1b0d80432c79 160 P->inner_length = 0;
wolfSSL 4:1b0d80432c79 161 XMEMSET( P->reserved, 0, sizeof( P->reserved ) );
wolfSSL 4:1b0d80432c79 162 XMEMSET( P->salt, 0, sizeof( P->salt ) );
wolfSSL 4:1b0d80432c79 163 XMEMSET( P->personal, 0, sizeof( P->personal ) );
wolfSSL 4:1b0d80432c79 164
wolfSSL 4:1b0d80432c79 165 if( blake2b_init_param( S, P ) < 0 ) return -1;
wolfSSL 4:1b0d80432c79 166
wolfSSL 4:1b0d80432c79 167 {
wolfSSL 4:1b0d80432c79 168 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 169 byte* block;
wolfSSL 4:1b0d80432c79 170
wolfSSL 4:1b0d80432c79 171 block = (byte*)XMALLOC(BLAKE2B_BLOCKBYTES, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 172
wolfSSL 4:1b0d80432c79 173 if ( block == NULL ) return -1;
wolfSSL 4:1b0d80432c79 174 #else
wolfSSL 4:1b0d80432c79 175 byte block[BLAKE2B_BLOCKBYTES];
wolfSSL 4:1b0d80432c79 176 #endif
wolfSSL 4:1b0d80432c79 177
wolfSSL 4:1b0d80432c79 178 XMEMSET( block, 0, BLAKE2B_BLOCKBYTES );
wolfSSL 4:1b0d80432c79 179 XMEMCPY( block, key, keylen );
wolfSSL 4:1b0d80432c79 180 blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
wolfSSL 4:1b0d80432c79 181 secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from */
wolfSSL 4:1b0d80432c79 182 /* memory */
wolfSSL 4:1b0d80432c79 183
wolfSSL 4:1b0d80432c79 184 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 185 XFREE(block, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 186 #endif
wolfSSL 4:1b0d80432c79 187 }
wolfSSL 4:1b0d80432c79 188 return 0;
wolfSSL 4:1b0d80432c79 189 }
wolfSSL 4:1b0d80432c79 190
wolfSSL 4:1b0d80432c79 191 static int blake2b_compress( blake2b_state *S,
wolfSSL 4:1b0d80432c79 192 const byte block[BLAKE2B_BLOCKBYTES] )
wolfSSL 4:1b0d80432c79 193 {
wolfSSL 4:1b0d80432c79 194 int i;
wolfSSL 4:1b0d80432c79 195
wolfSSL 4:1b0d80432c79 196 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 197 word64* m;
wolfSSL 4:1b0d80432c79 198 word64* v;
wolfSSL 4:1b0d80432c79 199
wolfSSL 4:1b0d80432c79 200 m = (word64*)XMALLOC(sizeof(word64) * 16, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 201
wolfSSL 4:1b0d80432c79 202 if ( m == NULL ) return -1;
wolfSSL 4:1b0d80432c79 203
wolfSSL 4:1b0d80432c79 204 v = (word64*)XMALLOC(sizeof(word64) * 16, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 205
wolfSSL 4:1b0d80432c79 206 if ( v == NULL )
wolfSSL 4:1b0d80432c79 207 {
wolfSSL 4:1b0d80432c79 208 XFREE(m, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 209 return -1;
wolfSSL 4:1b0d80432c79 210 }
wolfSSL 4:1b0d80432c79 211 #else
wolfSSL 4:1b0d80432c79 212 word64 m[16];
wolfSSL 4:1b0d80432c79 213 word64 v[16];
wolfSSL 4:1b0d80432c79 214 #endif
wolfSSL 4:1b0d80432c79 215
wolfSSL 4:1b0d80432c79 216 for( i = 0; i < 16; ++i )
wolfSSL 4:1b0d80432c79 217 m[i] = load64( block + i * sizeof( m[i] ) );
wolfSSL 4:1b0d80432c79 218
wolfSSL 4:1b0d80432c79 219 for( i = 0; i < 8; ++i )
wolfSSL 4:1b0d80432c79 220 v[i] = S->h[i];
wolfSSL 4:1b0d80432c79 221
wolfSSL 4:1b0d80432c79 222 v[ 8] = blake2b_IV[0];
wolfSSL 4:1b0d80432c79 223 v[ 9] = blake2b_IV[1];
wolfSSL 4:1b0d80432c79 224 v[10] = blake2b_IV[2];
wolfSSL 4:1b0d80432c79 225 v[11] = blake2b_IV[3];
wolfSSL 4:1b0d80432c79 226 v[12] = S->t[0] ^ blake2b_IV[4];
wolfSSL 4:1b0d80432c79 227 v[13] = S->t[1] ^ blake2b_IV[5];
wolfSSL 4:1b0d80432c79 228 v[14] = S->f[0] ^ blake2b_IV[6];
wolfSSL 4:1b0d80432c79 229 v[15] = S->f[1] ^ blake2b_IV[7];
wolfSSL 4:1b0d80432c79 230 #define G(r,i,a,b,c,d) \
wolfSSL 4:1b0d80432c79 231 do { \
wolfSSL 4:1b0d80432c79 232 a = a + b + m[blake2b_sigma[r][2*i+0]]; \
wolfSSL 4:1b0d80432c79 233 d = rotr64(d ^ a, 32); \
wolfSSL 4:1b0d80432c79 234 c = c + d; \
wolfSSL 4:1b0d80432c79 235 b = rotr64(b ^ c, 24); \
wolfSSL 4:1b0d80432c79 236 a = a + b + m[blake2b_sigma[r][2*i+1]]; \
wolfSSL 4:1b0d80432c79 237 d = rotr64(d ^ a, 16); \
wolfSSL 4:1b0d80432c79 238 c = c + d; \
wolfSSL 4:1b0d80432c79 239 b = rotr64(b ^ c, 63); \
wolfSSL 4:1b0d80432c79 240 } while(0)
wolfSSL 4:1b0d80432c79 241 #define ROUND(r) \
wolfSSL 4:1b0d80432c79 242 do { \
wolfSSL 4:1b0d80432c79 243 G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
wolfSSL 4:1b0d80432c79 244 G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
wolfSSL 4:1b0d80432c79 245 G(r,2,v[ 2],v[ 6],v[10],v[14]); \
wolfSSL 4:1b0d80432c79 246 G(r,3,v[ 3],v[ 7],v[11],v[15]); \
wolfSSL 4:1b0d80432c79 247 G(r,4,v[ 0],v[ 5],v[10],v[15]); \
wolfSSL 4:1b0d80432c79 248 G(r,5,v[ 1],v[ 6],v[11],v[12]); \
wolfSSL 4:1b0d80432c79 249 G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
wolfSSL 4:1b0d80432c79 250 G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
wolfSSL 4:1b0d80432c79 251 } while(0)
wolfSSL 4:1b0d80432c79 252 ROUND( 0 );
wolfSSL 4:1b0d80432c79 253 ROUND( 1 );
wolfSSL 4:1b0d80432c79 254 ROUND( 2 );
wolfSSL 4:1b0d80432c79 255 ROUND( 3 );
wolfSSL 4:1b0d80432c79 256 ROUND( 4 );
wolfSSL 4:1b0d80432c79 257 ROUND( 5 );
wolfSSL 4:1b0d80432c79 258 ROUND( 6 );
wolfSSL 4:1b0d80432c79 259 ROUND( 7 );
wolfSSL 4:1b0d80432c79 260 ROUND( 8 );
wolfSSL 4:1b0d80432c79 261 ROUND( 9 );
wolfSSL 4:1b0d80432c79 262 ROUND( 10 );
wolfSSL 4:1b0d80432c79 263 ROUND( 11 );
wolfSSL 4:1b0d80432c79 264
wolfSSL 4:1b0d80432c79 265 for( i = 0; i < 8; ++i )
wolfSSL 4:1b0d80432c79 266 S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
wolfSSL 4:1b0d80432c79 267
wolfSSL 4:1b0d80432c79 268 #undef G
wolfSSL 4:1b0d80432c79 269 #undef ROUND
wolfSSL 4:1b0d80432c79 270
wolfSSL 4:1b0d80432c79 271 #ifdef WOLFSSL_SMALL_STACK
wolfSSL 4:1b0d80432c79 272 XFREE(m, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 273 XFREE(v, NULL, DYNAMIC_TYPE_TMP_BUFFER);
wolfSSL 4:1b0d80432c79 274 #endif
wolfSSL 4:1b0d80432c79 275
wolfSSL 4:1b0d80432c79 276 return 0;
wolfSSL 4:1b0d80432c79 277 }
wolfSSL 4:1b0d80432c79 278
wolfSSL 4:1b0d80432c79 279 /* inlen now in bytes */
wolfSSL 4:1b0d80432c79 280 int blake2b_update( blake2b_state *S, const byte *in, word64 inlen )
wolfSSL 4:1b0d80432c79 281 {
wolfSSL 4:1b0d80432c79 282 while( inlen > 0 )
wolfSSL 4:1b0d80432c79 283 {
wolfSSL 4:1b0d80432c79 284 word64 left = S->buflen;
wolfSSL 4:1b0d80432c79 285 word64 fill = 2 * BLAKE2B_BLOCKBYTES - left;
wolfSSL 4:1b0d80432c79 286
wolfSSL 4:1b0d80432c79 287 if( inlen > fill )
wolfSSL 4:1b0d80432c79 288 {
wolfSSL 4:1b0d80432c79 289 XMEMCPY( S->buf + left, in, (wolfssl_word)fill ); /* Fill buffer */
wolfSSL 4:1b0d80432c79 290 S->buflen += fill;
wolfSSL 4:1b0d80432c79 291 blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
wolfSSL 4:1b0d80432c79 292
wolfSSL 4:1b0d80432c79 293 if ( blake2b_compress( S, S->buf ) < 0 ) return -1; /* Compress */
wolfSSL 4:1b0d80432c79 294
wolfSSL 4:1b0d80432c79 295 XMEMCPY( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES );
wolfSSL 4:1b0d80432c79 296 /* Shift buffer left */
wolfSSL 4:1b0d80432c79 297 S->buflen -= BLAKE2B_BLOCKBYTES;
wolfSSL 4:1b0d80432c79 298 in += fill;
wolfSSL 4:1b0d80432c79 299 inlen -= fill;
wolfSSL 4:1b0d80432c79 300 }
wolfSSL 4:1b0d80432c79 301 else /* inlen <= fill */
wolfSSL 4:1b0d80432c79 302 {
wolfSSL 4:1b0d80432c79 303 XMEMCPY( S->buf + left, in, (wolfssl_word)inlen );
wolfSSL 4:1b0d80432c79 304 S->buflen += inlen; /* Be lazy, do not compress */
wolfSSL 4:1b0d80432c79 305 in += inlen;
wolfSSL 4:1b0d80432c79 306 inlen -= inlen;
wolfSSL 4:1b0d80432c79 307 }
wolfSSL 4:1b0d80432c79 308 }
wolfSSL 4:1b0d80432c79 309
wolfSSL 4:1b0d80432c79 310 return 0;
wolfSSL 4:1b0d80432c79 311 }
wolfSSL 4:1b0d80432c79 312
wolfSSL 4:1b0d80432c79 313 /* Is this correct? */
wolfSSL 4:1b0d80432c79 314 int blake2b_final( blake2b_state *S, byte *out, byte outlen )
wolfSSL 4:1b0d80432c79 315 {
wolfSSL 4:1b0d80432c79 316 byte buffer[BLAKE2B_OUTBYTES];
wolfSSL 4:1b0d80432c79 317 int i;
wolfSSL 4:1b0d80432c79 318
wolfSSL 4:1b0d80432c79 319 if( S->buflen > BLAKE2B_BLOCKBYTES )
wolfSSL 4:1b0d80432c79 320 {
wolfSSL 4:1b0d80432c79 321 blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
wolfSSL 4:1b0d80432c79 322
wolfSSL 4:1b0d80432c79 323 if ( blake2b_compress( S, S->buf ) < 0 ) return -1;
wolfSSL 4:1b0d80432c79 324
wolfSSL 4:1b0d80432c79 325 S->buflen -= BLAKE2B_BLOCKBYTES;
wolfSSL 4:1b0d80432c79 326 XMEMCPY( S->buf, S->buf + BLAKE2B_BLOCKBYTES, (wolfssl_word)S->buflen );
wolfSSL 4:1b0d80432c79 327 }
wolfSSL 4:1b0d80432c79 328
wolfSSL 4:1b0d80432c79 329 blake2b_increment_counter( S, S->buflen );
wolfSSL 4:1b0d80432c79 330 blake2b_set_lastblock( S );
wolfSSL 4:1b0d80432c79 331 XMEMSET( S->buf + S->buflen, 0, (wolfssl_word)(2 * BLAKE2B_BLOCKBYTES - S->buflen) );
wolfSSL 4:1b0d80432c79 332 /* Padding */
wolfSSL 4:1b0d80432c79 333 if ( blake2b_compress( S, S->buf ) < 0 ) return -1;
wolfSSL 4:1b0d80432c79 334
wolfSSL 4:1b0d80432c79 335 for( i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
wolfSSL 4:1b0d80432c79 336 store64( buffer + sizeof( S->h[i] ) * i, S->h[i] );
wolfSSL 4:1b0d80432c79 337
wolfSSL 4:1b0d80432c79 338 XMEMCPY( out, buffer, outlen );
wolfSSL 4:1b0d80432c79 339 return 0;
wolfSSL 4:1b0d80432c79 340 }
wolfSSL 4:1b0d80432c79 341
wolfSSL 4:1b0d80432c79 342 /* inlen, at least, should be word64. Others can be size_t. */
wolfSSL 4:1b0d80432c79 343 int blake2b( byte *out, const void *in, const void *key, const byte outlen,
wolfSSL 4:1b0d80432c79 344 const word64 inlen, byte keylen )
wolfSSL 4:1b0d80432c79 345 {
wolfSSL 4:1b0d80432c79 346 blake2b_state S[1];
wolfSSL 4:1b0d80432c79 347
wolfSSL 4:1b0d80432c79 348 /* Verify parameters */
wolfSSL 4:1b0d80432c79 349 if ( NULL == in ) return -1;
wolfSSL 4:1b0d80432c79 350
wolfSSL 4:1b0d80432c79 351 if ( NULL == out ) return -1;
wolfSSL 4:1b0d80432c79 352
wolfSSL 4:1b0d80432c79 353 if( NULL == key ) keylen = 0;
wolfSSL 4:1b0d80432c79 354
wolfSSL 4:1b0d80432c79 355 if( keylen > 0 )
wolfSSL 4:1b0d80432c79 356 {
wolfSSL 4:1b0d80432c79 357 if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
wolfSSL 4:1b0d80432c79 358 }
wolfSSL 4:1b0d80432c79 359 else
wolfSSL 4:1b0d80432c79 360 {
wolfSSL 4:1b0d80432c79 361 if( blake2b_init( S, outlen ) < 0 ) return -1;
wolfSSL 4:1b0d80432c79 362 }
wolfSSL 4:1b0d80432c79 363
wolfSSL 4:1b0d80432c79 364 if ( blake2b_update( S, ( byte * )in, inlen ) < 0) return -1;
wolfSSL 4:1b0d80432c79 365
wolfSSL 4:1b0d80432c79 366 return blake2b_final( S, out, outlen );
wolfSSL 4:1b0d80432c79 367 }
wolfSSL 4:1b0d80432c79 368
wolfSSL 4:1b0d80432c79 369 #if defined(BLAKE2B_SELFTEST)
wolfSSL 4:1b0d80432c79 370 #include <string.h>
wolfSSL 4:1b0d80432c79 371 #include "blake2-kat.h"
wolfSSL 4:1b0d80432c79 372 int main( int argc, char **argv )
wolfSSL 4:1b0d80432c79 373 {
wolfSSL 4:1b0d80432c79 374 byte key[BLAKE2B_KEYBYTES];
wolfSSL 4:1b0d80432c79 375 byte buf[KAT_LENGTH];
wolfSSL 4:1b0d80432c79 376
wolfSSL 4:1b0d80432c79 377 for( word32 i = 0; i < BLAKE2B_KEYBYTES; ++i )
wolfSSL 4:1b0d80432c79 378 key[i] = ( byte )i;
wolfSSL 4:1b0d80432c79 379
wolfSSL 4:1b0d80432c79 380 for( word32 i = 0; i < KAT_LENGTH; ++i )
wolfSSL 4:1b0d80432c79 381 buf[i] = ( byte )i;
wolfSSL 4:1b0d80432c79 382
wolfSSL 4:1b0d80432c79 383 for( word32 i = 0; i < KAT_LENGTH; ++i )
wolfSSL 4:1b0d80432c79 384 {
wolfSSL 4:1b0d80432c79 385 byte hash[BLAKE2B_OUTBYTES];
wolfSSL 4:1b0d80432c79 386 if ( blake2b( hash, buf, key, BLAKE2B_OUTBYTES, i, BLAKE2B_KEYBYTES ) < 0 )
wolfSSL 4:1b0d80432c79 387 {
wolfSSL 4:1b0d80432c79 388 puts( "error" );
wolfSSL 4:1b0d80432c79 389 return -1;
wolfSSL 4:1b0d80432c79 390 }
wolfSSL 4:1b0d80432c79 391
wolfSSL 4:1b0d80432c79 392 if( 0 != memcmp( hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
wolfSSL 4:1b0d80432c79 393 {
wolfSSL 4:1b0d80432c79 394 puts( "error" );
wolfSSL 4:1b0d80432c79 395 return -1;
wolfSSL 4:1b0d80432c79 396 }
wolfSSL 4:1b0d80432c79 397 }
wolfSSL 4:1b0d80432c79 398
wolfSSL 4:1b0d80432c79 399 puts( "ok" );
wolfSSL 4:1b0d80432c79 400 return 0;
wolfSSL 4:1b0d80432c79 401 }
wolfSSL 4:1b0d80432c79 402 #endif
wolfSSL 4:1b0d80432c79 403
wolfSSL 4:1b0d80432c79 404
wolfSSL 4:1b0d80432c79 405 /* wolfCrypt API */
wolfSSL 4:1b0d80432c79 406
wolfSSL 4:1b0d80432c79 407 /* Init Blake2b digest, track size in case final doesn't want to "remember" */
wolfSSL 4:1b0d80432c79 408 int wc_InitBlake2b(Blake2b* b2b, word32 digestSz)
wolfSSL 4:1b0d80432c79 409 {
wolfSSL 4:1b0d80432c79 410 b2b->digestSz = digestSz;
wolfSSL 4:1b0d80432c79 411
wolfSSL 4:1b0d80432c79 412 return blake2b_init(b2b->S, (byte)digestSz);
wolfSSL 4:1b0d80432c79 413 }
wolfSSL 4:1b0d80432c79 414
wolfSSL 4:1b0d80432c79 415
wolfSSL 4:1b0d80432c79 416 /* Blake2b Update */
wolfSSL 4:1b0d80432c79 417 int wc_Blake2bUpdate(Blake2b* b2b, const byte* data, word32 sz)
wolfSSL 4:1b0d80432c79 418 {
wolfSSL 4:1b0d80432c79 419 return blake2b_update(b2b->S, data, sz);
wolfSSL 4:1b0d80432c79 420 }
wolfSSL 4:1b0d80432c79 421
wolfSSL 4:1b0d80432c79 422
wolfSSL 4:1b0d80432c79 423 /* Blake2b Final, if pass in zero size we use init digestSz */
wolfSSL 4:1b0d80432c79 424 int wc_Blake2bFinal(Blake2b* b2b, byte* final, word32 requestSz)
wolfSSL 4:1b0d80432c79 425 {
wolfSSL 4:1b0d80432c79 426 word32 sz = requestSz ? requestSz : b2b->digestSz;
wolfSSL 4:1b0d80432c79 427
wolfSSL 4:1b0d80432c79 428 return blake2b_final(b2b->S, final, (byte)sz);
wolfSSL 4:1b0d80432c79 429 }
wolfSSL 4:1b0d80432c79 430
wolfSSL 4:1b0d80432c79 431
wolfSSL 4:1b0d80432c79 432 /* end CTaoCrypt API */
wolfSSL 4:1b0d80432c79 433
wolfSSL 4:1b0d80432c79 434 #endif /* HAVE_BLAKE2 */
wolfSSL 4:1b0d80432c79 435
wolfSSL 4:1b0d80432c79 436