fork of cyassl-lib
Dependents: TLS_cyassl TLS_cyassl
cyassl/ctaocrypt/blake2-impl.h
- Committer:
- feb11
- Date:
- 2013-09-16
- Revision:
- 4:f377303c41be
- Parent:
- 0:714293de3836
File content as of revision 4:f377303c41be:
/* 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) 2006-2013 wolfSSL Inc. * * This file is part of CyaSSL. * * CyaSSL 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. * * CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #ifndef CTAOCRYPT_BLAKE2_IMPL_H #define CTAOCRYPT_BLAKE2_IMPL_H #include <cyassl/ctaocrypt/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 /* CTAOCRYPT_BLAKE2_IMPL_H */