Xuyi Wang / wolfcrypt

ssh lib

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wolfcrypt/blake2-impl.h@1:e4ea39eba2fb, 2019-11-25 (annotated)

Committer:
sPymbed
Date:
Mon Nov 25 14:23:49 2019 +0000
Revision:
1:e4ea39eba2fb
Parent:
0:1387ff3eed4a 
improved

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sPymbed 0:1387ff3eed4a 1 /*
sPymbed 0:1387ff3eed4a 2 BLAKE2 reference source code package - reference C implementations
sPymbed 0:1387ff3eed4a 3
sPymbed 0:1387ff3eed4a 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
sPymbed 0:1387ff3eed4a 5
sPymbed 0:1387ff3eed4a 6 To the extent possible under law, the author(s) have dedicated all copyright
sPymbed 0:1387ff3eed4a 7 and related and neighboring rights to this software to the public domain
sPymbed 0:1387ff3eed4a 8 worldwide. This software is distributed without any warranty.
sPymbed 0:1387ff3eed4a 9
sPymbed 0:1387ff3eed4a 10 You should have received a copy of the CC0 Public Domain Dedication along with
sPymbed 0:1387ff3eed4a 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
sPymbed 0:1387ff3eed4a 12 */
sPymbed 0:1387ff3eed4a 13 /* blake2-impl.h
sPymbed 0:1387ff3eed4a 14 *
sPymbed 0:1387ff3eed4a 15 * Copyright (C) 2006-2017 wolfSSL Inc.
sPymbed 0:1387ff3eed4a 16 *
sPymbed 0:1387ff3eed4a 17 * This file is part of wolfSSL.
sPymbed 0:1387ff3eed4a 18 *
sPymbed 0:1387ff3eed4a 19 * wolfSSL is free software; you can redistribute it and/or modify
sPymbed 0:1387ff3eed4a 20 * it under the terms of the GNU General Public License as published by
sPymbed 0:1387ff3eed4a 21 * the Free Software Foundation; either version 2 of the License, or
sPymbed 0:1387ff3eed4a 22 * (at your option) any later version.
sPymbed 0:1387ff3eed4a 23 *
sPymbed 0:1387ff3eed4a 24 * wolfSSL is distributed in the hope that it will be useful,
sPymbed 0:1387ff3eed4a 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
sPymbed 0:1387ff3eed4a 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
sPymbed 0:1387ff3eed4a 27 * GNU General Public License for more details.
sPymbed 0:1387ff3eed4a 28 *
sPymbed 0:1387ff3eed4a 29 * You should have received a copy of the GNU General Public License
sPymbed 0:1387ff3eed4a 30 * along with this program; if not, write to the Free Software
sPymbed 0:1387ff3eed4a 31 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
sPymbed 0:1387ff3eed4a 32 */
sPymbed 0:1387ff3eed4a 33
sPymbed 0:1387ff3eed4a 34
sPymbed 0:1387ff3eed4a 35
sPymbed 0:1387ff3eed4a 36 #ifndef WOLFCRYPT_BLAKE2_IMPL_H
sPymbed 0:1387ff3eed4a 37 #define WOLFCRYPT_BLAKE2_IMPL_H
sPymbed 0:1387ff3eed4a 38
sPymbed 0:1387ff3eed4a 39 #include <wolfcrypt/types.h>
sPymbed 0:1387ff3eed4a 40
sPymbed 0:1387ff3eed4a 41 static WC_INLINE word32 load32( const void *src )
sPymbed 0:1387ff3eed4a 42 {
sPymbed 0:1387ff3eed4a 43 #if defined(LITTLE_ENDIAN_ORDER)
sPymbed 0:1387ff3eed4a 44 return *( word32 * )( src );
sPymbed 0:1387ff3eed4a 45 #else
sPymbed 0:1387ff3eed4a 46 const byte *p = ( byte * )src;
sPymbed 0:1387ff3eed4a 47 word32 w = *p++;
sPymbed 0:1387ff3eed4a 48 w |= ( word32 )( *p++ ) << 8;
sPymbed 0:1387ff3eed4a 49 w |= ( word32 )( *p++ ) << 16;
sPymbed 0:1387ff3eed4a 50 w |= ( word32 )( *p++ ) << 24;
sPymbed 0:1387ff3eed4a 51 return w;
sPymbed 0:1387ff3eed4a 52 #endif
sPymbed 0:1387ff3eed4a 53 }
sPymbed 0:1387ff3eed4a 54
sPymbed 0:1387ff3eed4a 55 static WC_INLINE word64 load64( const void *src )
sPymbed 0:1387ff3eed4a 56 {
sPymbed 0:1387ff3eed4a 57 #if defined(LITTLE_ENDIAN_ORDER)
sPymbed 0:1387ff3eed4a 58 return *( word64 * )( src );
sPymbed 0:1387ff3eed4a 59 #else
sPymbed 0:1387ff3eed4a 60 const byte *p = ( byte * )src;
sPymbed 0:1387ff3eed4a 61 word64 w = *p++;
sPymbed 0:1387ff3eed4a 62 w |= ( word64 )( *p++ ) << 8;
sPymbed 0:1387ff3eed4a 63 w |= ( word64 )( *p++ ) << 16;
sPymbed 0:1387ff3eed4a 64 w |= ( word64 )( *p++ ) << 24;
sPymbed 0:1387ff3eed4a 65 w |= ( word64 )( *p++ ) << 32;
sPymbed 0:1387ff3eed4a 66 w |= ( word64 )( *p++ ) << 40;
sPymbed 0:1387ff3eed4a 67 w |= ( word64 )( *p++ ) << 48;
sPymbed 0:1387ff3eed4a 68 w |= ( word64 )( *p++ ) << 56;
sPymbed 0:1387ff3eed4a 69 return w;
sPymbed 0:1387ff3eed4a 70 #endif
sPymbed 0:1387ff3eed4a 71 }
sPymbed 0:1387ff3eed4a 72
sPymbed 0:1387ff3eed4a 73 static WC_INLINE void store32( void *dst, word32 w )
sPymbed 0:1387ff3eed4a 74 {
sPymbed 0:1387ff3eed4a 75 #if defined(LITTLE_ENDIAN_ORDER)
sPymbed 0:1387ff3eed4a 76 *( word32 * )( dst ) = w;
sPymbed 0:1387ff3eed4a 77 #else
sPymbed 0:1387ff3eed4a 78 byte *p = ( byte * )dst;
sPymbed 0:1387ff3eed4a 79 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 80 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 81 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 82 *p++ = ( byte )w;
sPymbed 0:1387ff3eed4a 83 #endif
sPymbed 0:1387ff3eed4a 84 }
sPymbed 0:1387ff3eed4a 85
sPymbed 0:1387ff3eed4a 86 static WC_INLINE void store64( void *dst, word64 w )
sPymbed 0:1387ff3eed4a 87 {
sPymbed 0:1387ff3eed4a 88 #if defined(LITTLE_ENDIAN_ORDER)
sPymbed 0:1387ff3eed4a 89 *( word64 * )( dst ) = w;
sPymbed 0:1387ff3eed4a 90 #else
sPymbed 0:1387ff3eed4a 91 byte *p = ( byte * )dst;
sPymbed 0:1387ff3eed4a 92 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 93 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 94 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 95 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 96 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 97 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 98 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 99 *p++ = ( byte )w;
sPymbed 0:1387ff3eed4a 100 #endif
sPymbed 0:1387ff3eed4a 101 }
sPymbed 0:1387ff3eed4a 102
sPymbed 0:1387ff3eed4a 103 static WC_INLINE word64 load48( const void *src )
sPymbed 0:1387ff3eed4a 104 {
sPymbed 0:1387ff3eed4a 105 const byte *p = ( const byte * )src;
sPymbed 0:1387ff3eed4a 106 word64 w = *p++;
sPymbed 0:1387ff3eed4a 107 w |= ( word64 )( *p++ ) << 8;
sPymbed 0:1387ff3eed4a 108 w |= ( word64 )( *p++ ) << 16;
sPymbed 0:1387ff3eed4a 109 w |= ( word64 )( *p++ ) << 24;
sPymbed 0:1387ff3eed4a 110 w |= ( word64 )( *p++ ) << 32;
sPymbed 0:1387ff3eed4a 111 w |= ( word64 )( *p++ ) << 40;
sPymbed 0:1387ff3eed4a 112 return w;
sPymbed 0:1387ff3eed4a 113 }
sPymbed 0:1387ff3eed4a 114
sPymbed 0:1387ff3eed4a 115 static WC_INLINE void store48( void *dst, word64 w )
sPymbed 0:1387ff3eed4a 116 {
sPymbed 0:1387ff3eed4a 117 byte *p = ( byte * )dst;
sPymbed 0:1387ff3eed4a 118 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 119 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 120 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 121 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 122 *p++ = ( byte )w; w >>= 8;
sPymbed 0:1387ff3eed4a 123 *p++ = ( byte )w;
sPymbed 0:1387ff3eed4a 124 }
sPymbed 0:1387ff3eed4a 125
sPymbed 0:1387ff3eed4a 126 static WC_INLINE word32 rotl32( const word32 w, const unsigned c )
sPymbed 0:1387ff3eed4a 127 {
sPymbed 0:1387ff3eed4a 128 return ( w << c ) | ( w >> ( 32 - c ) );
sPymbed 0:1387ff3eed4a 129 }
sPymbed 0:1387ff3eed4a 130
sPymbed 0:1387ff3eed4a 131 static WC_INLINE word64 rotl64( const word64 w, const unsigned c )
sPymbed 0:1387ff3eed4a 132 {
sPymbed 0:1387ff3eed4a 133 return ( w << c ) | ( w >> ( 64 - c ) );
sPymbed 0:1387ff3eed4a 134 }
sPymbed 0:1387ff3eed4a 135
sPymbed 0:1387ff3eed4a 136 static WC_INLINE word32 rotr32( const word32 w, const unsigned c )
sPymbed 0:1387ff3eed4a 137 {
sPymbed 0:1387ff3eed4a 138 return ( w >> c ) | ( w << ( 32 - c ) );
sPymbed 0:1387ff3eed4a 139 }
sPymbed 0:1387ff3eed4a 140
sPymbed 0:1387ff3eed4a 141 static WC_INLINE word64 rotr64( const word64 w, const unsigned c )
sPymbed 0:1387ff3eed4a 142 {
sPymbed 0:1387ff3eed4a 143 return ( w >> c ) | ( w << ( 64 - c ) );
sPymbed 0:1387ff3eed4a 144 }
sPymbed 0:1387ff3eed4a 145
sPymbed 0:1387ff3eed4a 146 /* prevents compiler optimizing out memset() */
sPymbed 0:1387ff3eed4a 147 static WC_INLINE void secure_zero_memory( void *v, word64 n )
sPymbed 0:1387ff3eed4a 148 {
sPymbed 0:1387ff3eed4a 149 volatile byte *p = ( volatile byte * )v;
sPymbed 0:1387ff3eed4a 150
sPymbed 0:1387ff3eed4a 151 while( n-- ) *p++ = 0;
sPymbed 0:1387ff3eed4a 152 }
sPymbed 0:1387ff3eed4a 153
sPymbed 0:1387ff3eed4a 154 #endif /* WOLFCRYPT_BLAKE2_IMPL_H */
sPymbed 0:1387ff3eed4a 155
sPymbed 0:1387ff3eed4a 156