mirror of
https://github.com/bol-van/zapret.git
synced 2024-12-30 21:20:33 +05:00
26 lines
824 B
C
26 lines
824 B
C
|
/************************ sha-private.h ************************/
|
||
|
|
/***************** See RFC 6234 for details. *******************/
|
||
|
|
#pragma once
|
||
|
|
/*
|
||
|
|
* These definitions are defined in FIPS 180-3, section 4.1.
|
||
|
|
* Ch() and Maj() are defined identically in sections 4.1.1,
|
||
|
|
* 4.1.2, and 4.1.3.
|
||
|
|
*
|
||
|
|
* The definitions used in FIPS 180-3 are as follows:
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef USE_MODIFIED_MACROS
|
||
|
|
#define SHA_Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
|
||
|
|
#define SHA_Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
|
||
|
|
#else /* USE_MODIFIED_MACROS */
|
||
|
|
/*
|
||
|
|
* The following definitions are equivalent and potentially faster.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define SHA_Ch(x, y, z) (((x) & ((y) ^ (z))) ^ (z))
|
||
|
|
#define SHA_Maj(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
|
||
|
|
|
||
|
|
#endif /* USE_MODIFIED_MACROS */
|
||
|
|
|
||
|
|
#define SHA_Parity(x, y, z) ((x) ^ (y) ^ (z))
|