Francois Berder / cyassl-lib

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cyassl/ctaocrypt/blake2-impl.h@0:714293de3836, 2013-09-05 (annotated)

Committer:
ashleymills
Date:
Thu Sep 05 10:33:04 2013 +0000
Revision:
0:714293de3836
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ashleymills 0:714293de3836 1 /*
ashleymills 0:714293de3836 2 BLAKE2 reference source code package - reference C implementations
ashleymills 0:714293de3836 3
ashleymills 0:714293de3836 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
ashleymills 0:714293de3836 5
ashleymills 0:714293de3836 6 To the extent possible under law, the author(s) have dedicated all copyright
ashleymills 0:714293de3836 7 and related and neighboring rights to this software to the public domain
ashleymills 0:714293de3836 8 worldwide. This software is distributed without any warranty.
ashleymills 0:714293de3836 9
ashleymills 0:714293de3836 10 You should have received a copy of the CC0 Public Domain Dedication along with
ashleymills 0:714293de3836 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
ashleymills 0:714293de3836 12 */
ashleymills 0:714293de3836 13 /* blake2-impl.h
ashleymills 0:714293de3836 14 *
ashleymills 0:714293de3836 15 * Copyright (C) 2006-2013 wolfSSL Inc.
ashleymills 0:714293de3836 16 *
ashleymills 0:714293de3836 17 * This file is part of CyaSSL.
ashleymills 0:714293de3836 18 *
ashleymills 0:714293de3836 19 * CyaSSL is free software; you can redistribute it and/or modify
ashleymills 0:714293de3836 20 * it under the terms of the GNU General Public License as published by
ashleymills 0:714293de3836 21 * the Free Software Foundation; either version 2 of the License, or
ashleymills 0:714293de3836 22 * (at your option) any later version.
ashleymills 0:714293de3836 23 *
ashleymills 0:714293de3836 24 * CyaSSL is distributed in the hope that it will be useful,
ashleymills 0:714293de3836 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ashleymills 0:714293de3836 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ashleymills 0:714293de3836 27 * GNU General Public License for more details.
ashleymills 0:714293de3836 28 *
ashleymills 0:714293de3836 29 * You should have received a copy of the GNU General Public License
ashleymills 0:714293de3836 30 * along with this program; if not, write to the Free Software
ashleymills 0:714293de3836 31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
ashleymills 0:714293de3836 32 */
ashleymills 0:714293de3836 33
ashleymills 0:714293de3836 34
ashleymills 0:714293de3836 35 #ifndef CTAOCRYPT_BLAKE2_IMPL_H
ashleymills 0:714293de3836 36 #define CTAOCRYPT_BLAKE2_IMPL_H
ashleymills 0:714293de3836 37
ashleymills 0:714293de3836 38 #include <cyassl/ctaocrypt/types.h>
ashleymills 0:714293de3836 39
ashleymills 0:714293de3836 40 static inline word32 load32( const void *src )
ashleymills 0:714293de3836 41 {
ashleymills 0:714293de3836 42 #if defined(LITTLE_ENDIAN_ORDER)
ashleymills 0:714293de3836 43 return *( word32 * )( src );
ashleymills 0:714293de3836 44 #else
ashleymills 0:714293de3836 45 const byte *p = ( byte * )src;
ashleymills 0:714293de3836 46 word32 w = *p++;
ashleymills 0:714293de3836 47 w |= ( word32 )( *p++ ) << 8;
ashleymills 0:714293de3836 48 w |= ( word32 )( *p++ ) << 16;
ashleymills 0:714293de3836 49 w |= ( word32 )( *p++ ) << 24;
ashleymills 0:714293de3836 50 return w;
ashleymills 0:714293de3836 51 #endif
ashleymills 0:714293de3836 52 }
ashleymills 0:714293de3836 53
ashleymills 0:714293de3836 54 static inline word64 load64( const void *src )
ashleymills 0:714293de3836 55 {
ashleymills 0:714293de3836 56 #if defined(LITTLE_ENDIAN_ORDER)
ashleymills 0:714293de3836 57 return *( word64 * )( src );
ashleymills 0:714293de3836 58 #else
ashleymills 0:714293de3836 59 const byte *p = ( byte * )src;
ashleymills 0:714293de3836 60 word64 w = *p++;
ashleymills 0:714293de3836 61 w |= ( word64 )( *p++ ) << 8;
ashleymills 0:714293de3836 62 w |= ( word64 )( *p++ ) << 16;
ashleymills 0:714293de3836 63 w |= ( word64 )( *p++ ) << 24;
ashleymills 0:714293de3836 64 w |= ( word64 )( *p++ ) << 32;
ashleymills 0:714293de3836 65 w |= ( word64 )( *p++ ) << 40;
ashleymills 0:714293de3836 66 w |= ( word64 )( *p++ ) << 48;
ashleymills 0:714293de3836 67 w |= ( word64 )( *p++ ) << 56;
ashleymills 0:714293de3836 68 return w;
ashleymills 0:714293de3836 69 #endif
ashleymills 0:714293de3836 70 }
ashleymills 0:714293de3836 71
ashleymills 0:714293de3836 72 static inline void store32( void *dst, word32 w )
ashleymills 0:714293de3836 73 {
ashleymills 0:714293de3836 74 #if defined(LITTLE_ENDIAN_ORDER)
ashleymills 0:714293de3836 75 *( word32 * )( dst ) = w;
ashleymills 0:714293de3836 76 #else
ashleymills 0:714293de3836 77 byte *p = ( byte * )dst;
ashleymills 0:714293de3836 78 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 79 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 80 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 81 *p++ = ( byte )w;
ashleymills 0:714293de3836 82 #endif
ashleymills 0:714293de3836 83 }
ashleymills 0:714293de3836 84
ashleymills 0:714293de3836 85 static inline void store64( void *dst, word64 w )
ashleymills 0:714293de3836 86 {
ashleymills 0:714293de3836 87 #if defined(LITTLE_ENDIAN_ORDER)
ashleymills 0:714293de3836 88 *( word64 * )( dst ) = w;
ashleymills 0:714293de3836 89 #else
ashleymills 0:714293de3836 90 byte *p = ( byte * )dst;
ashleymills 0:714293de3836 91 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 92 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 93 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 94 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 95 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 96 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 97 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 98 *p++ = ( byte )w;
ashleymills 0:714293de3836 99 #endif
ashleymills 0:714293de3836 100 }
ashleymills 0:714293de3836 101
ashleymills 0:714293de3836 102 static inline word64 load48( const void *src )
ashleymills 0:714293de3836 103 {
ashleymills 0:714293de3836 104 const byte *p = ( const byte * )src;
ashleymills 0:714293de3836 105 word64 w = *p++;
ashleymills 0:714293de3836 106 w |= ( word64 )( *p++ ) << 8;
ashleymills 0:714293de3836 107 w |= ( word64 )( *p++ ) << 16;
ashleymills 0:714293de3836 108 w |= ( word64 )( *p++ ) << 24;
ashleymills 0:714293de3836 109 w |= ( word64 )( *p++ ) << 32;
ashleymills 0:714293de3836 110 w |= ( word64 )( *p++ ) << 40;
ashleymills 0:714293de3836 111 return w;
ashleymills 0:714293de3836 112 }
ashleymills 0:714293de3836 113
ashleymills 0:714293de3836 114 static inline void store48( void *dst, word64 w )
ashleymills 0:714293de3836 115 {
ashleymills 0:714293de3836 116 byte *p = ( byte * )dst;
ashleymills 0:714293de3836 117 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 118 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 119 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 120 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 121 *p++ = ( byte )w; w >>= 8;
ashleymills 0:714293de3836 122 *p++ = ( byte )w;
ashleymills 0:714293de3836 123 }
ashleymills 0:714293de3836 124
ashleymills 0:714293de3836 125 static inline word32 rotl32( const word32 w, const unsigned c )
ashleymills 0:714293de3836 126 {
ashleymills 0:714293de3836 127 return ( w << c ) | ( w >> ( 32 - c ) );
ashleymills 0:714293de3836 128 }
ashleymills 0:714293de3836 129
ashleymills 0:714293de3836 130 static inline word64 rotl64( const word64 w, const unsigned c )
ashleymills 0:714293de3836 131 {
ashleymills 0:714293de3836 132 return ( w << c ) | ( w >> ( 64 - c ) );
ashleymills 0:714293de3836 133 }
ashleymills 0:714293de3836 134
ashleymills 0:714293de3836 135 static inline word32 rotr32( const word32 w, const unsigned c )
ashleymills 0:714293de3836 136 {
ashleymills 0:714293de3836 137 return ( w >> c ) | ( w << ( 32 - c ) );
ashleymills 0:714293de3836 138 }
ashleymills 0:714293de3836 139
ashleymills 0:714293de3836 140 static inline word64 rotr64( const word64 w, const unsigned c )
ashleymills 0:714293de3836 141 {
ashleymills 0:714293de3836 142 return ( w >> c ) | ( w << ( 64 - c ) );
ashleymills 0:714293de3836 143 }
ashleymills 0:714293de3836 144
ashleymills 0:714293de3836 145 /* prevents compiler optimizing out memset() */
ashleymills 0:714293de3836 146 static inline void secure_zero_memory( void *v, word64 n )
ashleymills 0:714293de3836 147 {
ashleymills 0:714293de3836 148 volatile byte *p = ( volatile byte * )v;
ashleymills 0:714293de3836 149
ashleymills 0:714293de3836 150 while( n-- ) *p++ = 0;
ashleymills 0:714293de3836 151 }
ashleymills 0:714293de3836 152
ashleymills 0:714293de3836 153 #endif /* CTAOCRYPT_BLAKE2_IMPL_H */
ashleymills 0:714293de3836 154