154 lines
3.3 KiB
C
154 lines
3.3 KiB
C
/*
|
|
* BIRD Library -- BLAKE2 Support Code
|
|
*
|
|
* Based on the code from BLAKE2 reference source code package
|
|
*
|
|
* 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 : https://creativecommons.org/publicdomain/zero/1.0
|
|
* - OpenSSL license : https://www.openssl.org/source/license.html
|
|
* - Apache 2.0 : https://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* More information about the BLAKE2 hash function can be found at
|
|
* https://blake2.net/ web.
|
|
*/
|
|
|
|
#ifndef _BIRD_BLAKE2_IMPL_H_
|
|
#define _BIRD_BLAKE2_IMPL_H_
|
|
|
|
#include "nest/bird.h"
|
|
|
|
|
|
static inline u32 load32(const void *src)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
u32 w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const u8 *p = (const u8 *) src;
|
|
return ((u32) (p[0]) << 0) |
|
|
((u32) (p[1]) << 8) |
|
|
((u32) (p[2]) << 16) |
|
|
((u32) (p[3]) << 24) ;
|
|
#endif
|
|
}
|
|
|
|
static inline u64 load64(const void *src)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
u64 w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const u8 *p = (const u8 *) src;
|
|
return ((u64) (p[0]) << 0) |
|
|
((u64) (p[1]) << 8) |
|
|
((u64) (p[2]) << 16) |
|
|
((u64) (p[3]) << 24) |
|
|
((u64) (p[4]) << 32) |
|
|
((u64) (p[5]) << 40) |
|
|
((u64) (p[6]) << 48) |
|
|
((u64) (p[7]) << 56) ;
|
|
#endif
|
|
}
|
|
|
|
static inline u16 load16(const void *src)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
u16 w;
|
|
memcpy(&w, src, sizeof w);
|
|
return w;
|
|
#else
|
|
const u8 *p = (const u8 *) src;
|
|
return (u16) (((u32) (p[0]) << 0) |
|
|
((u32) (p[1]) << 8));
|
|
#endif
|
|
}
|
|
|
|
static inline void store16(void *dst, u16 w)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
u8 *p = (u8 *) dst;
|
|
*p++ = (u8)w; w >>= 8;
|
|
*p++ = (u8)w;
|
|
#endif
|
|
}
|
|
|
|
static inline void store32(void *dst, u32 w)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
u8 *p = (u8 *)dst;
|
|
p[0] = (u8) (w >> 0);
|
|
p[1] = (u8) (w >> 8);
|
|
p[2] = (u8) (w >> 16);
|
|
p[3] = (u8) (w >> 24);
|
|
#endif
|
|
}
|
|
|
|
static inline void store64(void *dst, u64 w)
|
|
{
|
|
#if !defined(CPU_BIG_ENDIAN)
|
|
memcpy(dst, &w, sizeof w);
|
|
#else
|
|
u8 *p = (u8 *) dst;
|
|
p[0] = (u8) (w >> 0);
|
|
p[1] = (u8) (w >> 8);
|
|
p[2] = (u8) (w >> 16);
|
|
p[3] = (u8) (w >> 24);
|
|
p[4] = (u8) (w >> 32);
|
|
p[5] = (u8) (w >> 40);
|
|
p[6] = (u8) (w >> 48);
|
|
p[7] = (u8) (w >> 56);
|
|
#endif
|
|
}
|
|
|
|
static inline u64 load48(const void *src)
|
|
{
|
|
const u8 *p = (const u8 *) src;
|
|
return ((u64) (p[0]) << 0) |
|
|
((u64) (p[1]) << 8) |
|
|
((u64) (p[2]) << 16) |
|
|
((u64) (p[3]) << 24) |
|
|
((u64) (p[4]) << 32) |
|
|
((u64) (p[5]) << 40) ;
|
|
}
|
|
|
|
static inline void store48(void *dst, u64 w)
|
|
{
|
|
u8 *p = (u8 *) dst;
|
|
p[0] = (u8) (w >> 0);
|
|
p[1] = (u8) (w >> 8);
|
|
p[2] = (u8) (w >> 16);
|
|
p[3] = (u8) (w >> 24);
|
|
p[4] = (u8) (w >> 32);
|
|
p[5] = (u8) (w >> 40);
|
|
}
|
|
|
|
static inline u32 rotr32(const u32 w, const uint c)
|
|
{
|
|
return (w >> c) | (w << (32 - c));
|
|
}
|
|
|
|
static inline u64 rotr64(const u64 w, const uint c)
|
|
{
|
|
return (w >> c) | (w << (64 - c));
|
|
}
|
|
|
|
/* prevents compiler optimizing out memset() */
|
|
static 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
|