wolf SSL / CyaSSL-2.9.4

SSL/TLS Library

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CyaSSL is SSL/TLS library for embedded systems.

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cyassl/ctaocrypt/blake2-impl.h@0:9d17e4342598, 2014-04-20 (annotated)

Committer:
wolfSSL
Date:
Sun Apr 20 12:40:57 2014 +0000
Revision:
0:9d17e4342598
CyaSSL SSL/TLS Library 2.9.4;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 0:9d17e4342598 1 /*
wolfSSL 0:9d17e4342598 2 BLAKE2 reference source code package - reference C implementations
wolfSSL 0:9d17e4342598 3
wolfSSL 0:9d17e4342598 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
wolfSSL 0:9d17e4342598 5
wolfSSL 0:9d17e4342598 6 To the extent possible under law, the author(s) have dedicated all copyright
wolfSSL 0:9d17e4342598 7 and related and neighboring rights to this software to the public domain
wolfSSL 0:9d17e4342598 8 worldwide. This software is distributed without any warranty.
wolfSSL 0:9d17e4342598 9
wolfSSL 0:9d17e4342598 10 You should have received a copy of the CC0 Public Domain Dedication along with
wolfSSL 0:9d17e4342598 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
wolfSSL 0:9d17e4342598 12 */
wolfSSL 0:9d17e4342598 13 /* blake2-impl.h
wolfSSL 0:9d17e4342598 14 *
wolfSSL 0:9d17e4342598 15 * Copyright (C) 2006-2013 wolfSSL Inc.
wolfSSL 0:9d17e4342598 16 *
wolfSSL 0:9d17e4342598 17 * This file is part of CyaSSL.
wolfSSL 0:9d17e4342598 18 *
wolfSSL 0:9d17e4342598 19 * CyaSSL is free software; you can redistribute it and/or modify
wolfSSL 0:9d17e4342598 20 * it under the terms of the GNU General Public License as published by
wolfSSL 0:9d17e4342598 21 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 0:9d17e4342598 22 * (at your option) any later version.
wolfSSL 0:9d17e4342598 23 *
wolfSSL 0:9d17e4342598 24 * CyaSSL is distributed in the hope that it will be useful,
wolfSSL 0:9d17e4342598 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 0:9d17e4342598 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 0:9d17e4342598 27 * GNU General Public License for more details.
wolfSSL 0:9d17e4342598 28 *
wolfSSL 0:9d17e4342598 29 * You should have received a copy of the GNU General Public License
wolfSSL 0:9d17e4342598 30 * along with this program; if not, write to the Free Software
wolfSSL 0:9d17e4342598 31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
wolfSSL 0:9d17e4342598 32 */
wolfSSL 0:9d17e4342598 33
wolfSSL 0:9d17e4342598 34
wolfSSL 0:9d17e4342598 35 #ifndef CTAOCRYPT_BLAKE2_IMPL_H
wolfSSL 0:9d17e4342598 36 #define CTAOCRYPT_BLAKE2_IMPL_H
wolfSSL 0:9d17e4342598 37
wolfSSL 0:9d17e4342598 38 #include <cyassl/ctaocrypt/types.h>
wolfSSL 0:9d17e4342598 39
wolfSSL 0:9d17e4342598 40 static inline word32 load32( const void *src )
wolfSSL 0:9d17e4342598 41 {
wolfSSL 0:9d17e4342598 42 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 0:9d17e4342598 43 return *( word32 * )( src );
wolfSSL 0:9d17e4342598 44 #else
wolfSSL 0:9d17e4342598 45 const byte *p = ( byte * )src;
wolfSSL 0:9d17e4342598 46 word32 w = *p++;
wolfSSL 0:9d17e4342598 47 w |= ( word32 )( *p++ ) << 8;
wolfSSL 0:9d17e4342598 48 w |= ( word32 )( *p++ ) << 16;
wolfSSL 0:9d17e4342598 49 w |= ( word32 )( *p++ ) << 24;
wolfSSL 0:9d17e4342598 50 return w;
wolfSSL 0:9d17e4342598 51 #endif
wolfSSL 0:9d17e4342598 52 }
wolfSSL 0:9d17e4342598 53
wolfSSL 0:9d17e4342598 54 static inline word64 load64( const void *src )
wolfSSL 0:9d17e4342598 55 {
wolfSSL 0:9d17e4342598 56 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 0:9d17e4342598 57 return *( word64 * )( src );
wolfSSL 0:9d17e4342598 58 #else
wolfSSL 0:9d17e4342598 59 const byte *p = ( byte * )src;
wolfSSL 0:9d17e4342598 60 word64 w = *p++;
wolfSSL 0:9d17e4342598 61 w |= ( word64 )( *p++ ) << 8;
wolfSSL 0:9d17e4342598 62 w |= ( word64 )( *p++ ) << 16;
wolfSSL 0:9d17e4342598 63 w |= ( word64 )( *p++ ) << 24;
wolfSSL 0:9d17e4342598 64 w |= ( word64 )( *p++ ) << 32;
wolfSSL 0:9d17e4342598 65 w |= ( word64 )( *p++ ) << 40;
wolfSSL 0:9d17e4342598 66 w |= ( word64 )( *p++ ) << 48;
wolfSSL 0:9d17e4342598 67 w |= ( word64 )( *p++ ) << 56;
wolfSSL 0:9d17e4342598 68 return w;
wolfSSL 0:9d17e4342598 69 #endif
wolfSSL 0:9d17e4342598 70 }
wolfSSL 0:9d17e4342598 71
wolfSSL 0:9d17e4342598 72 static inline void store32( void *dst, word32 w )
wolfSSL 0:9d17e4342598 73 {
wolfSSL 0:9d17e4342598 74 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 0:9d17e4342598 75 *( word32 * )( dst ) = w;
wolfSSL 0:9d17e4342598 76 #else
wolfSSL 0:9d17e4342598 77 byte *p = ( byte * )dst;
wolfSSL 0:9d17e4342598 78 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 79 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 80 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 81 *p++ = ( byte )w;
wolfSSL 0:9d17e4342598 82 #endif
wolfSSL 0:9d17e4342598 83 }
wolfSSL 0:9d17e4342598 84
wolfSSL 0:9d17e4342598 85 static inline void store64( void *dst, word64 w )
wolfSSL 0:9d17e4342598 86 {
wolfSSL 0:9d17e4342598 87 #if defined(LITTLE_ENDIAN_ORDER)
wolfSSL 0:9d17e4342598 88 *( word64 * )( dst ) = w;
wolfSSL 0:9d17e4342598 89 #else
wolfSSL 0:9d17e4342598 90 byte *p = ( byte * )dst;
wolfSSL 0:9d17e4342598 91 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 92 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 93 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 94 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 95 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 96 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 97 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 98 *p++ = ( byte )w;
wolfSSL 0:9d17e4342598 99 #endif
wolfSSL 0:9d17e4342598 100 }
wolfSSL 0:9d17e4342598 101
wolfSSL 0:9d17e4342598 102 static inline word64 load48( const void *src )
wolfSSL 0:9d17e4342598 103 {
wolfSSL 0:9d17e4342598 104 const byte *p = ( const byte * )src;
wolfSSL 0:9d17e4342598 105 word64 w = *p++;
wolfSSL 0:9d17e4342598 106 w |= ( word64 )( *p++ ) << 8;
wolfSSL 0:9d17e4342598 107 w |= ( word64 )( *p++ ) << 16;
wolfSSL 0:9d17e4342598 108 w |= ( word64 )( *p++ ) << 24;
wolfSSL 0:9d17e4342598 109 w |= ( word64 )( *p++ ) << 32;
wolfSSL 0:9d17e4342598 110 w |= ( word64 )( *p++ ) << 40;
wolfSSL 0:9d17e4342598 111 return w;
wolfSSL 0:9d17e4342598 112 }
wolfSSL 0:9d17e4342598 113
wolfSSL 0:9d17e4342598 114 static inline void store48( void *dst, word64 w )
wolfSSL 0:9d17e4342598 115 {
wolfSSL 0:9d17e4342598 116 byte *p = ( byte * )dst;
wolfSSL 0:9d17e4342598 117 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 118 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 119 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 120 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 121 *p++ = ( byte )w; w >>= 8;
wolfSSL 0:9d17e4342598 122 *p++ = ( byte )w;
wolfSSL 0:9d17e4342598 123 }
wolfSSL 0:9d17e4342598 124
wolfSSL 0:9d17e4342598 125 static inline word32 rotl32( const word32 w, const unsigned c )
wolfSSL 0:9d17e4342598 126 {
wolfSSL 0:9d17e4342598 127 return ( w << c ) | ( w >> ( 32 - c ) );
wolfSSL 0:9d17e4342598 128 }
wolfSSL 0:9d17e4342598 129
wolfSSL 0:9d17e4342598 130 static inline word64 rotl64( const word64 w, const unsigned c )
wolfSSL 0:9d17e4342598 131 {
wolfSSL 0:9d17e4342598 132 return ( w << c ) | ( w >> ( 64 - c ) );
wolfSSL 0:9d17e4342598 133 }
wolfSSL 0:9d17e4342598 134
wolfSSL 0:9d17e4342598 135 static inline word32 rotr32( const word32 w, const unsigned c )
wolfSSL 0:9d17e4342598 136 {
wolfSSL 0:9d17e4342598 137 return ( w >> c ) | ( w << ( 32 - c ) );
wolfSSL 0:9d17e4342598 138 }
wolfSSL 0:9d17e4342598 139
wolfSSL 0:9d17e4342598 140 static inline word64 rotr64( const word64 w, const unsigned c )
wolfSSL 0:9d17e4342598 141 {
wolfSSL 0:9d17e4342598 142 return ( w >> c ) | ( w << ( 64 - c ) );
wolfSSL 0:9d17e4342598 143 }
wolfSSL 0:9d17e4342598 144
wolfSSL 0:9d17e4342598 145 /* prevents compiler optimizing out memset() */
wolfSSL 0:9d17e4342598 146 static inline void secure_zero_memory( void *v, word64 n )
wolfSSL 0:9d17e4342598 147 {
wolfSSL 0:9d17e4342598 148 volatile byte *p = ( volatile byte * )v;
wolfSSL 0:9d17e4342598 149
wolfSSL 0:9d17e4342598 150 while( n-- ) *p++ = 0;
wolfSSL 0:9d17e4342598 151 }
wolfSSL 0:9d17e4342598 152
wolfSSL 0:9d17e4342598 153 #endif /* CTAOCRYPT_BLAKE2_IMPL_H */
wolfSSL 0:9d17e4342598 154