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#pragma once
#include "argon2_base.h"
#include <library/cpp/digest/argonish/internal/rotations/rotations_ref.h>
namespace NArgonish {
static inline ui64 FBlaMka(ui64 x, ui64 y) {
const ui64 m = 0xFFFFFFFF;
const ui64 xy = (x & m) * (y & m);
return x + y + 2 * xy;
}
static inline void BlamkaGRef(ui64& a, ui64& b, ui64& c, ui64& d) {
a = FBlaMka(a, b);
d = Rotr(d ^ a, 32);
c = FBlaMka(c, d);
b = Rotr(b ^ c, 24);
a = FBlaMka(a, b);
d = Rotr(d ^ a, 16);
c = FBlaMka(c, d);
b = Rotr(b ^ c, 63);
}
static inline void BlamkaRoundRef(
ui64& v0, ui64& v1, ui64& v2, ui64& v3,
ui64& v4, ui64& v5, ui64& v6, ui64& v7,
ui64& v8, ui64& v9, ui64& v10, ui64& v11,
ui64& v12, ui64& v13, ui64& v14, ui64& v15) {
BlamkaGRef(v0, v4, v8, v12);
BlamkaGRef(v1, v5, v9, v13);
BlamkaGRef(v2, v6, v10, v14);
BlamkaGRef(v3, v7, v11, v15);
BlamkaGRef(v0, v5, v10, v15);
BlamkaGRef(v1, v6, v11, v12);
BlamkaGRef(v2, v7, v8, v13);
BlamkaGRef(v3, v4, v9, v14);
}
template <ui32 mcost, ui32 threads>
class TArgon2REF final: public TArgon2<EInstructionSet::REF, mcost, threads> {
public:
TArgon2REF(EArgon2Type atype, ui32 tcost, const ui8* key, ui32 keylen)
: TArgon2<EInstructionSet::REF, mcost, threads>(atype, tcost, key, keylen)
{
}
protected:
virtual void XorBlock_(TBlock* dst, const TBlock* src) const override {
for (ui32 i = 0; i < ARGON2_QWORDS_IN_BLOCK; ++i) {
dst->V[i] ^= src->V[i];
}
}
virtual void CopyBlock_(TBlock* dst, const TBlock* src) const override {
memcpy(dst->V, src->V, sizeof(ui64) * ARGON2_QWORDS_IN_BLOCK);
}
virtual void FillBlock_(const TBlock* prevBlock, const TBlock* refBlock, TBlock* nextBlock, bool withXor) const override {
TBlock blockR, blockTmp;
CopyBlock_(&blockR, refBlock);
XorBlock_(&blockR, prevBlock);
CopyBlock_(&blockTmp, &blockR);
if (withXor) {
XorBlock_(&blockTmp, nextBlock);
}
for (ui32 i = 0; i < 8; ++i) {
BlamkaRoundRef(
blockR.V[16 * i + 0], blockR.V[16 * i + 1], blockR.V[16 * i + 2], blockR.V[16 * i + 3],
blockR.V[16 * i + 4], blockR.V[16 * i + 5], blockR.V[16 * i + 6], blockR.V[16 * i + 7],
blockR.V[16 * i + 8], blockR.V[16 * i + 9], blockR.V[16 * i + 10], blockR.V[16 * i + 11],
blockR.V[16 * i + 12], blockR.V[16 * i + 13], blockR.V[16 * i + 14], blockR.V[16 * i + 15]);
}
for (ui32 i = 0; i < 8; ++i) {
BlamkaRoundRef(
blockR.V[2 * i + 0], blockR.V[2 * i + 1], blockR.V[2 * i + 16], blockR.V[2 * i + 17],
blockR.V[2 * i + 32], blockR.V[2 * i + 33], blockR.V[2 * i + 48], blockR.V[2 * i + 49],
blockR.V[2 * i + 64], blockR.V[2 * i + 65], blockR.V[2 * i + 80], blockR.V[2 * i + 81],
blockR.V[2 * i + 96], blockR.V[2 * i + 97], blockR.V[2 * i + 112], blockR.V[2 * i + 113]);
}
CopyBlock_(nextBlock, &blockTmp);
XorBlock_(nextBlock, &blockR);
}
};
}
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