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-rw-r--r--lib/crypto_backend/argon2/blake2/blamka-round-ref.h56
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diff --git a/lib/crypto_backend/argon2/blake2/blamka-round-ref.h b/lib/crypto_backend/argon2/blake2/blamka-round-ref.h
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+++ b/lib/crypto_backend/argon2/blake2/blamka-round-ref.h
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+/*
+ * Argon2 reference source code package - reference C implementations
+ *
+ * Copyright 2015
+ * Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
+ *
+ * You may use this work under the terms of a Creative Commons CC0 1.0
+ * License/Waiver or the Apache Public License 2.0, at your option. The terms of
+ * these licenses can be found at:
+ *
+ * - CC0 1.0 Universal : https://creativecommons.org/publicdomain/zero/1.0
+ * - Apache 2.0 : https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * You should have received a copy of both of these licenses along with this
+ * software. If not, they may be obtained at the above URLs.
+ */
+
+#ifndef BLAKE_ROUND_MKA_H
+#define BLAKE_ROUND_MKA_H
+
+#include "blake2.h"
+#include "blake2-impl.h"
+
+/* designed by the Lyra PHC team */
+static BLAKE2_INLINE uint64_t fBlaMka(uint64_t x, uint64_t y) {
+ const uint64_t m = UINT64_C(0xFFFFFFFF);
+ const uint64_t xy = (x & m) * (y & m);
+ return x + y + 2 * xy;
+}
+
+#define G(a, b, c, d) \
+ do { \
+ a = fBlaMka(a, b); \
+ d = rotr64(d ^ a, 32); \
+ c = fBlaMka(c, d); \
+ b = rotr64(b ^ c, 24); \
+ a = fBlaMka(a, b); \
+ d = rotr64(d ^ a, 16); \
+ c = fBlaMka(c, d); \
+ b = rotr64(b ^ c, 63); \
+ } while ((void)0, 0)
+
+#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
+ v12, v13, v14, v15) \
+ do { \
+ G(v0, v4, v8, v12); \
+ G(v1, v5, v9, v13); \
+ G(v2, v6, v10, v14); \
+ G(v3, v7, v11, v15); \
+ G(v0, v5, v10, v15); \
+ G(v1, v6, v11, v12); \
+ G(v2, v7, v8, v13); \
+ G(v3, v4, v9, v14); \
+ } while ((void)0, 0)
+
+#endif