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39 lines
2 KiB
C
39 lines
2 KiB
C
#ifndef BLAKE_ROUND_MKA_H
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#define BLAKE_ROUND_MKA_H
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#include "blake2.h"
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#include "blake2-impl.h"
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/*designed by the Lyra PHC team */
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static BLAKE2_INLINE uint64_t fBlaMka(uint64_t x, uint64_t y) {
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const uint64_t m = UINT64_C(0xFFFFFFFF);
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const uint64_t xy = (x & m) * (y & m);
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return x + y + 2 * xy;
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}
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#define G(a, b, c, d) \
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do { \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 32); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 24); \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 16); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 63); \
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} while ((void)0, 0)
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#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
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v12, v13, v14, v15) \
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do { \
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G(v0, v4, v8, v12); \
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G(v1, v5, v9, v13); \
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G(v2, v6, v10, v14); \
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G(v3, v7, v11, v15); \
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G(v0, v5, v10, v15); \
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G(v1, v6, v11, v12); \
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G(v2, v7, v8, v13); \
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G(v3, v4, v9, v14); \
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} while ((void)0, 0)
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#endif
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