mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 14:53:06 +00:00
7c3fd5c25d
The code is cross-ported from BLAKE2 reference implementation (https://github.com/BLAKE2/BLAKE2). With minimal change to remove unused macros/features. Currently there is only one user inside U-boot (btrfs), and since it only utilize BLAKE2B, all other favors are all removed. Signed-off-by: Qu Wenruo <wqu@suse.com> [trini: Rename ROUND to R to avoid clash with <linux/bitops.h> Signed-off-by: Tom Rini <trini@konsulko.com>
163 lines
4.1 KiB
C
163 lines
4.1 KiB
C
/* SPDX-License-Identifier: CC0-1.0 */
|
|
/*
|
|
BLAKE2 reference source code package - reference C implementations
|
|
|
|
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
|
|
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
|
|
your option. The terms of these licenses can be found at:
|
|
|
|
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
|
|
- OpenSSL license : https://www.openssl.org/source/license.html
|
|
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
More information about the BLAKE2 hash function can be found at
|
|
https://blake2.net.
|
|
*/
|
|
|
|
/*
|
|
* Cross-ported from BLAKE2 (https://github.com/BLAKE2/BLAKE2).
|
|
* Modifications includes:
|
|
*
|
|
* - Remove unsupported compilers like MSC/CPP
|
|
* - Use u-boot library functions/macros
|
|
*/
|
|
#ifndef BLAKE2_IMPL_H
|
|
#define BLAKE2_IMPL_H
|
|
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#define BLAKE2_INLINE inline
|
|
|
|
#ifdef __LITTLE_ENDIAN
|
|
# define NATIVE_LITTLE_ENDIAN
|
|
#endif
|
|
|
|
static BLAKE2_INLINE uint32_t load32( const void *src )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
uint32_t w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const uint8_t *p = ( const uint8_t * )src;
|
|
return (( uint32_t )( p[0] ) << 0) |
|
|
(( uint32_t )( p[1] ) << 8) |
|
|
(( uint32_t )( p[2] ) << 16) |
|
|
(( uint32_t )( p[3] ) << 24) ;
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE uint64_t load64( const void *src )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
uint64_t w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const uint8_t *p = ( const uint8_t * )src;
|
|
return (( uint64_t )( p[0] ) << 0) |
|
|
(( uint64_t )( p[1] ) << 8) |
|
|
(( uint64_t )( p[2] ) << 16) |
|
|
(( uint64_t )( p[3] ) << 24) |
|
|
(( uint64_t )( p[4] ) << 32) |
|
|
(( uint64_t )( p[5] ) << 40) |
|
|
(( uint64_t )( p[6] ) << 48) |
|
|
(( uint64_t )( p[7] ) << 56) ;
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE uint16_t load16( const void *src )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
uint16_t w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const uint8_t *p = ( const uint8_t * )src;
|
|
return ( uint16_t )((( uint32_t )( p[0] ) << 0) |
|
|
(( uint32_t )( p[1] ) << 8));
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE void store16( void *dst, uint16_t w )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
uint8_t *p = ( uint8_t * )dst;
|
|
*p++ = ( uint8_t )w; w >>= 8;
|
|
*p++ = ( uint8_t )w;
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE void store32( void *dst, uint32_t w )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
uint8_t *p = ( uint8_t * )dst;
|
|
p[0] = (uint8_t)(w >> 0);
|
|
p[1] = (uint8_t)(w >> 8);
|
|
p[2] = (uint8_t)(w >> 16);
|
|
p[3] = (uint8_t)(w >> 24);
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE void store64( void *dst, uint64_t w )
|
|
{
|
|
#if defined(NATIVE_LITTLE_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
uint8_t *p = ( uint8_t * )dst;
|
|
p[0] = (uint8_t)(w >> 0);
|
|
p[1] = (uint8_t)(w >> 8);
|
|
p[2] = (uint8_t)(w >> 16);
|
|
p[3] = (uint8_t)(w >> 24);
|
|
p[4] = (uint8_t)(w >> 32);
|
|
p[5] = (uint8_t)(w >> 40);
|
|
p[6] = (uint8_t)(w >> 48);
|
|
p[7] = (uint8_t)(w >> 56);
|
|
#endif
|
|
}
|
|
|
|
static BLAKE2_INLINE uint64_t load48( const void *src )
|
|
{
|
|
const uint8_t *p = ( const uint8_t * )src;
|
|
return (( uint64_t )( p[0] ) << 0) |
|
|
(( uint64_t )( p[1] ) << 8) |
|
|
(( uint64_t )( p[2] ) << 16) |
|
|
(( uint64_t )( p[3] ) << 24) |
|
|
(( uint64_t )( p[4] ) << 32) |
|
|
(( uint64_t )( p[5] ) << 40) ;
|
|
}
|
|
|
|
static BLAKE2_INLINE void store48( void *dst, uint64_t w )
|
|
{
|
|
uint8_t *p = ( uint8_t * )dst;
|
|
p[0] = (uint8_t)(w >> 0);
|
|
p[1] = (uint8_t)(w >> 8);
|
|
p[2] = (uint8_t)(w >> 16);
|
|
p[3] = (uint8_t)(w >> 24);
|
|
p[4] = (uint8_t)(w >> 32);
|
|
p[5] = (uint8_t)(w >> 40);
|
|
}
|
|
|
|
static BLAKE2_INLINE uint32_t rotr32( const uint32_t w, const unsigned c )
|
|
{
|
|
return ( w >> c ) | ( w << ( 32 - c ) );
|
|
}
|
|
|
|
static BLAKE2_INLINE uint64_t rotr64( const uint64_t w, const unsigned c )
|
|
{
|
|
return ( w >> c ) | ( w << ( 64 - c ) );
|
|
}
|
|
|
|
/* prevents compiler optimizing out memset() */
|
|
static BLAKE2_INLINE void secure_zero_memory(void *v, size_t n)
|
|
{
|
|
static void *(*const volatile memset_v)(void *, int, size_t) = &memset;
|
|
memset_v(v, 0, n);
|
|
}
|
|
|
|
#endif
|