1/************************ sha-private.h ************************/
2/***************** See RFC 6234 for details. *******************/
3#ifndef _SHA_PRIVATE__H
4#define _SHA_PRIVATE__H
5/*
6 * These definitions are defined in FIPS 180-3, section 4.1.
7 * Ch() and Maj() are defined identically in sections 4.1.1,
8 * 4.1.2, and 4.1.3.
9 *
10 * The definitions used in FIPS 180-3 are as follows:
11 */
12
13#ifndef USE_MODIFIED_MACROS
14#define SHA_Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
15#define SHA_Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
16#else /* USE_MODIFIED_MACROS */
17/*
18 * The following definitions are equivalent and potentially faster.
19 */
20
21#define SHA_Ch(x, y, z) (((x) & ((y) ^ (z))) ^ (z))
22#define SHA_Maj(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
23
24#endif /* USE_MODIFIED_MACROS */
25
26#define SHA_Parity(x, y, z) ((x) ^ (y) ^ (z))
27
28#endif /* _SHA_PRIVATE__H */
29

source code of qtbase/src/3rdparty/rfc6234/sha-private.h