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57 lines
2.7 KiB
57 lines
2.7 KiB
5 years ago
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/*
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* Argon2 reference source code package - reference C implementations
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*
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* Copyright 2015
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* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
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*
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* You may use this work under the terms of a Creative Commons CC0 1.0
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* License/Waiver or the Apache Public License 2.0, at your option. The terms of
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* these licenses can be found at:
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*
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* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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*
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* You should have received a copy of both of these licenses along with this
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* software. If not, they may be obtained at the above URLs.
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*/
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#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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