/usr/include/wolfssl/wolfcrypt/blake2-impl.h is in libwolfssl-dev 3.4.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | /*
BLAKE2 reference source code package - reference C implementations
Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
To the extent possible under law, the author(s) have dedicated all copyright
and related and neighboring rights to this software to the public domain
worldwide. This software is distributed without any warranty.
You should have received a copy of the CC0 Public Domain Dedication along with
this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
*/
/* blake2-impl.h
*
* Copyright (C) 2006-2015 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef WOLFCRYPT_BLAKE2_IMPL_H
#define WOLFCRYPT_BLAKE2_IMPL_H
#include <wolfssl/wolfcrypt/types.h>
static inline word32 load32( const void *src )
{
#if defined(LITTLE_ENDIAN_ORDER)
return *( word32 * )( src );
#else
const byte *p = ( byte * )src;
word32 w = *p++;
w |= ( word32 )( *p++ ) << 8;
w |= ( word32 )( *p++ ) << 16;
w |= ( word32 )( *p++ ) << 24;
return w;
#endif
}
static inline word64 load64( const void *src )
{
#if defined(LITTLE_ENDIAN_ORDER)
return *( word64 * )( src );
#else
const byte *p = ( byte * )src;
word64 w = *p++;
w |= ( word64 )( *p++ ) << 8;
w |= ( word64 )( *p++ ) << 16;
w |= ( word64 )( *p++ ) << 24;
w |= ( word64 )( *p++ ) << 32;
w |= ( word64 )( *p++ ) << 40;
w |= ( word64 )( *p++ ) << 48;
w |= ( word64 )( *p++ ) << 56;
return w;
#endif
}
static inline void store32( void *dst, word32 w )
{
#if defined(LITTLE_ENDIAN_ORDER)
*( word32 * )( dst ) = w;
#else
byte *p = ( byte * )dst;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w;
#endif
}
static inline void store64( void *dst, word64 w )
{
#if defined(LITTLE_ENDIAN_ORDER)
*( word64 * )( dst ) = w;
#else
byte *p = ( byte * )dst;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w;
#endif
}
static inline word64 load48( const void *src )
{
const byte *p = ( const byte * )src;
word64 w = *p++;
w |= ( word64 )( *p++ ) << 8;
w |= ( word64 )( *p++ ) << 16;
w |= ( word64 )( *p++ ) << 24;
w |= ( word64 )( *p++ ) << 32;
w |= ( word64 )( *p++ ) << 40;
return w;
}
static inline void store48( void *dst, word64 w )
{
byte *p = ( byte * )dst;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w; w >>= 8;
*p++ = ( byte )w;
}
static inline word32 rotl32( const word32 w, const unsigned c )
{
return ( w << c ) | ( w >> ( 32 - c ) );
}
static inline word64 rotl64( const word64 w, const unsigned c )
{
return ( w << c ) | ( w >> ( 64 - c ) );
}
static inline word32 rotr32( const word32 w, const unsigned c )
{
return ( w >> c ) | ( w << ( 32 - c ) );
}
static inline word64 rotr64( const word64 w, const unsigned c )
{
return ( w >> c ) | ( w << ( 64 - c ) );
}
/* prevents compiler optimizing out memset() */
static inline void secure_zero_memory( void *v, word64 n )
{
volatile byte *p = ( volatile byte * )v;
while( n-- ) *p++ = 0;
}
#endif /* WOLFCRYPT_BLAKE2_IMPL_H */
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