Xuyi Wang / wolfSSL

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wolfssl/wolfcrypt/blake2-impl.h@15:117db924cf7c, 2018-08-18 (annotated)

Committer:
wolfSSL
Date:
Sat Aug 18 22:20:43 2018 +0000
Revision:
15:117db924cf7c
wolfSSL 3.15.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 15:117db924cf7c 1 /*
wolfSSL 15:117db924cf7c 2 BLAKE2 reference source code package - reference C implementations
wolfSSL 15:117db924cf7c 3
wolfSSL 15:117db924cf7c 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
wolfSSL 15:117db924cf7c 5
wolfSSL 15:117db924cf7c 6 To the extent possible under law, the author(s) have dedicated all copyright
wolfSSL 15:117db924cf7c 7 and related and neighboring rights to this software to the public domain
wolfSSL 15:117db924cf7c 8 worldwide. This software is distributed without any warranty.
wolfSSL 15:117db924cf7c 9
wolfSSL 15:117db924cf7c 10 You should have received a copy of the CC0 Public Domain Dedication along with
wolfSSL 15:117db924cf7c 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
wolfSSL 15:117db924cf7c 12 */
wolfSSL 15:117db924cf7c 13 /* blake2-impl.h
wolfSSL 15:117db924cf7c 14 *
wolfSSL 15:117db924cf7c 15 * Copyright (C) 2006-2017 wolfSSL Inc.
wolfSSL 15:117db924cf7c 16 *
wolfSSL 15:117db924cf7c 17 * This file is part of wolfSSL.
wolfSSL 15:117db924cf7c 18 *
wolfSSL 15:117db924cf7c 19 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 15:117db924cf7c 20 * it under the terms of the GNU General Public License as published by
wolfSSL 15:117db924cf7c 21 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 15:117db924cf7c 22 * (at your option) any later version.
wolfSSL 15:117db924cf7c 23 *
wolfSSL 15:117db924cf7c 24 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 15:117db924cf7c 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 15:117db924cf7c 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 15:117db924cf7c 27 * GNU General Public License for more details.
wolfSSL 15:117db924cf7c 28 *
wolfSSL 15:117db924cf7c 29 * You should have received a copy of the GNU General Public License
wolfSSL 15:117db924cf7c 30 * along with this program; if not, write to the Free Software
wolfSSL 15:117db924cf7c 31 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 15:117db924cf7c 32 */
wolfSSL 15:117db924cf7c 33
wolfSSL 15:117db924cf7c 34
wolfSSL 15:117db924cf7c 35
wolfSSL 15:117db924cf7c 36 #ifndef WOLFCRYPT_BLAKE2_IMPL_H
wolfSSL 15:117db924cf7c 37 #define WOLFCRYPT_BLAKE2_IMPL_H
wolfSSL 15:117db924cf7c 38
wolfSSL 15:117db924cf7c 39 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 15:117db924cf7c 40
wolfSSL 15:117db924cf7c 41 static WC_INLINE word32 load32( const void *src )
wolfSSL 15:117db924cf7c 42 {
wolfSSL 15:117db924cf7c 43 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 15:117db924cf7c 44 return *( word32 * )( src );
wolfSSL 15:117db924cf7c 45 #else
wolfSSL 15:117db924cf7c 46 const byte *p = ( byte * )src;
wolfSSL 15:117db924cf7c 47 word32 w = *p++;
wolfSSL 15:117db924cf7c 48 w |= ( word32 )( *p++ ) << 8;
wolfSSL 15:117db924cf7c 49 w |= ( word32 )( *p++ ) << 16;
wolfSSL 15:117db924cf7c 50 w |= ( word32 )( *p++ ) << 24;
wolfSSL 15:117db924cf7c 51 return w;
wolfSSL 15:117db924cf7c 52 #endif
wolfSSL 15:117db924cf7c 53 }
wolfSSL 15:117db924cf7c 54
wolfSSL 15:117db924cf7c 55 static WC_INLINE word64 load64( const void *src )
wolfSSL 15:117db924cf7c 56 {
wolfSSL 15:117db924cf7c 57 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 15:117db924cf7c 58 return *( word64 * )( src );
wolfSSL 15:117db924cf7c 59 #else
wolfSSL 15:117db924cf7c 60 const byte *p = ( byte * )src;
wolfSSL 15:117db924cf7c 61 word64 w = *p++;
wolfSSL 15:117db924cf7c 62 w |= ( word64 )( *p++ ) << 8;
wolfSSL 15:117db924cf7c 63 w |= ( word64 )( *p++ ) << 16;
wolfSSL 15:117db924cf7c 64 w |= ( word64 )( *p++ ) << 24;
wolfSSL 15:117db924cf7c 65 w |= ( word64 )( *p++ ) << 32;
wolfSSL 15:117db924cf7c 66 w |= ( word64 )( *p++ ) << 40;
wolfSSL 15:117db924cf7c 67 w |= ( word64 )( *p++ ) << 48;
wolfSSL 15:117db924cf7c 68 w |= ( word64 )( *p++ ) << 56;
wolfSSL 15:117db924cf7c 69 return w;
wolfSSL 15:117db924cf7c 70 #endif
wolfSSL 15:117db924cf7c 71 }
wolfSSL 15:117db924cf7c 72
wolfSSL 15:117db924cf7c 73 static WC_INLINE void store32( void *dst, word32 w )
wolfSSL 15:117db924cf7c 74 {
wolfSSL 15:117db924cf7c 75 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 15:117db924cf7c 76 *( word32 * )( dst ) = w;
wolfSSL 15:117db924cf7c 77 #else
wolfSSL 15:117db924cf7c 78 byte *p = ( byte * )dst;
wolfSSL 15:117db924cf7c 79 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 80 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 81 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 82 *p++ = ( byte )w;
wolfSSL 15:117db924cf7c 83 #endif
wolfSSL 15:117db924cf7c 84 }
wolfSSL 15:117db924cf7c 85
wolfSSL 15:117db924cf7c 86 static WC_INLINE void store64( void *dst, word64 w )
wolfSSL 15:117db924cf7c 87 {
wolfSSL 15:117db924cf7c 88 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 15:117db924cf7c 89 *( word64 * )( dst ) = w;
wolfSSL 15:117db924cf7c 90 #else
wolfSSL 15:117db924cf7c 91 byte *p = ( byte * )dst;
wolfSSL 15:117db924cf7c 92 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 93 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 94 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 95 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 96 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 97 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 98 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 99 *p++ = ( byte )w;
wolfSSL 15:117db924cf7c 100 #endif
wolfSSL 15:117db924cf7c 101 }
wolfSSL 15:117db924cf7c 102
wolfSSL 15:117db924cf7c 103 static WC_INLINE word64 load48( const void *src )
wolfSSL 15:117db924cf7c 104 {
wolfSSL 15:117db924cf7c 105 const byte *p = ( const byte * )src;
wolfSSL 15:117db924cf7c 106 word64 w = *p++;
wolfSSL 15:117db924cf7c 107 w |= ( word64 )( *p++ ) << 8;
wolfSSL 15:117db924cf7c 108 w |= ( word64 )( *p++ ) << 16;
wolfSSL 15:117db924cf7c 109 w |= ( word64 )( *p++ ) << 24;
wolfSSL 15:117db924cf7c 110 w |= ( word64 )( *p++ ) << 32;
wolfSSL 15:117db924cf7c 111 w |= ( word64 )( *p++ ) << 40;
wolfSSL 15:117db924cf7c 112 return w;
wolfSSL 15:117db924cf7c 113 }
wolfSSL 15:117db924cf7c 114
wolfSSL 15:117db924cf7c 115 static WC_INLINE void store48( void *dst, word64 w )
wolfSSL 15:117db924cf7c 116 {
wolfSSL 15:117db924cf7c 117 byte *p = ( byte * )dst;
wolfSSL 15:117db924cf7c 118 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 119 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 120 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 121 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 122 *p++ = ( byte )w; w >>= 8;
wolfSSL 15:117db924cf7c 123 *p++ = ( byte )w;
wolfSSL 15:117db924cf7c 124 }
wolfSSL 15:117db924cf7c 125
wolfSSL 15:117db924cf7c 126 static WC_INLINE word32 rotl32( const word32 w, const unsigned c )
wolfSSL 15:117db924cf7c 127 {
wolfSSL 15:117db924cf7c 128 return ( w << c ) | ( w >> ( 32 - c ) );
wolfSSL 15:117db924cf7c 129 }
wolfSSL 15:117db924cf7c 130
wolfSSL 15:117db924cf7c 131 static WC_INLINE word64 rotl64( const word64 w, const unsigned c )
wolfSSL 15:117db924cf7c 132 {
wolfSSL 15:117db924cf7c 133 return ( w << c ) | ( w >> ( 64 - c ) );
wolfSSL 15:117db924cf7c 134 }
wolfSSL 15:117db924cf7c 135
wolfSSL 15:117db924cf7c 136 static WC_INLINE word32 rotr32( const word32 w, const unsigned c )
wolfSSL 15:117db924cf7c 137 {
wolfSSL 15:117db924cf7c 138 return ( w >> c ) | ( w << ( 32 - c ) );
wolfSSL 15:117db924cf7c 139 }
wolfSSL 15:117db924cf7c 140
wolfSSL 15:117db924cf7c 141 static WC_INLINE word64 rotr64( const word64 w, const unsigned c )
wolfSSL 15:117db924cf7c 142 {
wolfSSL 15:117db924cf7c 143 return ( w >> c ) | ( w << ( 64 - c ) );
wolfSSL 15:117db924cf7c 144 }
wolfSSL 15:117db924cf7c 145
wolfSSL 15:117db924cf7c 146 /* prevents compiler optimizing out memset() */
wolfSSL 15:117db924cf7c 147 static WC_INLINE void secure_zero_memory( void *v, word64 n )
wolfSSL 15:117db924cf7c 148 {
wolfSSL 15:117db924cf7c 149 volatile byte *p = ( volatile byte * )v;
wolfSSL 15:117db924cf7c 150
wolfSSL 15:117db924cf7c 151 while( n-- ) *p++ = 0;
wolfSSL 15:117db924cf7c 152 }
wolfSSL 15:117db924cf7c 153
wolfSSL 15:117db924cf7c 154 #endif /* WOLFCRYPT_BLAKE2_IMPL_H */
wolfSSL 15:117db924cf7c 155
wolfSSL 15:117db924cf7c 156