diff options
Diffstat (limited to 'src/libsodium/crypto_generichash/blake2/ref/blake2-impl.h')
-rw-r--r-- | src/libsodium/crypto_generichash/blake2/ref/blake2-impl.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/libsodium/crypto_generichash/blake2/ref/blake2-impl.h b/src/libsodium/crypto_generichash/blake2/ref/blake2-impl.h new file mode 100644 index 0000000..276d305 --- /dev/null +++ b/src/libsodium/crypto_generichash/blake2/ref/blake2-impl.h @@ -0,0 +1,132 @@ +/* + 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/>. +*/ + +#ifndef __BLAKE2_IMPL_H__ +#define __BLAKE2_IMPL_H__ + +#include <stdint.h> + +#include "utils.h" + +static inline uint32_t load32( const void *src ) +{ +#if defined(NATIVE_LITTLE_ENDIAN) + return *( uint32_t * )( src ); +#else + const uint8_t *p = ( const uint8_t * )src; + uint32_t w = *p++; + w |= ( uint32_t )( *p++ ) << 8; + w |= ( uint32_t )( *p++ ) << 16; + w |= ( uint32_t )( *p++ ) << 24; + return w; +#endif +} + +static inline uint64_t load64( const void *src ) +{ +#if defined(NATIVE_LITTLE_ENDIAN) + return *( uint64_t * )( src ); +#else + const uint8_t *p = ( const uint8_t * )src; + uint64_t w = *p++; + w |= ( uint64_t )( *p++ ) << 8; + w |= ( uint64_t )( *p++ ) << 16; + w |= ( uint64_t )( *p++ ) << 24; + w |= ( uint64_t )( *p++ ) << 32; + w |= ( uint64_t )( *p++ ) << 40; + w |= ( uint64_t )( *p++ ) << 48; + w |= ( uint64_t )( *p++ ) << 56; + return w; +#endif +} + +static inline void store32( void *dst, uint32_t w ) +{ +#if defined(NATIVE_LITTLE_ENDIAN) + *( uint32_t * )( dst ) = w; +#else + uint8_t *p = ( uint8_t * )dst; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; +#endif +} + +static inline void store64( void *dst, uint64_t w ) +{ +#if defined(NATIVE_LITTLE_ENDIAN) + *( uint64_t * )( dst ) = w; +#else + uint8_t *p = ( uint8_t * )dst; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; +#endif +} + +static inline uint64_t load48( const void *src ) +{ + const uint8_t *p = ( const uint8_t * )src; + uint64_t w = *p++; + w |= ( uint64_t )( *p++ ) << 8; + w |= ( uint64_t )( *p++ ) << 16; + w |= ( uint64_t )( *p++ ) << 24; + w |= ( uint64_t )( *p++ ) << 32; + w |= ( uint64_t )( *p++ ) << 40; + return w; +} + +static inline void store48( void *dst, uint64_t w ) +{ + uint8_t *p = ( uint8_t * )dst; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; w >>= 8; + *p++ = ( uint8_t )w; +} + +static inline uint32_t rotl32( const uint32_t w, const unsigned c ) +{ + return ( w << c ) | ( w >> ( 32 - c ) ); +} + +static inline uint64_t rotl64( const uint64_t w, const unsigned c ) +{ + return ( w << c ) | ( w >> ( 64 - c ) ); +} + +static inline uint32_t rotr32( const uint32_t w, const unsigned c ) +{ + return ( w >> c ) | ( w << ( 32 - c ) ); +} + +static inline uint64_t rotr64( const uint64_t w, const unsigned c ) +{ + return ( w >> c ) | ( w << ( 64 - c ) ); +} + +/* prevents compiler optimizing out memset() */ +static inline void secure_zero_memory( void *v, size_t n ) +{ + sodium_memzero(v, n); +} + +#endif |