1#ifndef blamka_round_ref_H
2#define blamka_round_ref_H
3
4#include "private/common.h"
5
6/*designed by the Lyra PHC team */
7static inline uint64_t
8fBlaMka(uint64_t x, uint64_t y)
9{
10    const uint64_t m  = UINT64_C(0xFFFFFFFF);
11    const uint64_t xy = (x & m) * (y & m);
12    return x + y + 2 * xy;
13}
14
15#define G(a, b, c, d)          \
16    do {                       \
17        a = fBlaMka(a, b);     \
18        d = ROTR64(d ^ a, 32); \
19        c = fBlaMka(c, d);     \
20        b = ROTR64(b ^ c, 24); \
21        a = fBlaMka(a, b);     \
22        d = ROTR64(d ^ a, 16); \
23        c = fBlaMka(c, d);     \
24        b = ROTR64(b ^ c, 63); \
25    } while ((void) 0, 0)
26
27#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
28                           v12, v13, v14, v15)                               \
29    do {                                                                     \
30        G(v0, v4, v8, v12);                                                  \
31        G(v1, v5, v9, v13);                                                  \
32        G(v2, v6, v10, v14);                                                 \
33        G(v3, v7, v11, v15);                                                 \
34        G(v0, v5, v10, v15);                                                 \
35        G(v1, v6, v11, v12);                                                 \
36        G(v2, v7, v8, v13);                                                  \
37        G(v3, v4, v9, v14);                                                  \
38    } while ((void) 0, 0)
39
40#endif
41