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Merge pull request #4973

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aaafa8a9 ringct: avoid repeated point conversion (moneromooo-monero)
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Riccardo Spagni 2019-01-16 19:03:45 +02:00
commit c07969d0d1
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GPG Key ID: 55432DF31CCD4FCD
1 changed files with 10 additions and 1 deletions
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11
src/ringct/rctSigs.cpp
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@ -605,10 +605,19 @@ namespace rct {
keyV tmp(rows + 1);
size_t i;
keyM M(cols, tmp);
ge_p3 Cp3;
CHECK_AND_ASSERT_MES_L1(ge_frombytes_vartime(&Cp3, C.bytes) == 0, false, "point conv failed");
ge_cached Ccached;
ge_p3_to_cached(&Ccached, &Cp3);
ge_p1p1 p1;
//create the matrix to mg sig
for (i = 0; i < cols; i++) {
M[i][0] = pubs[i].dest;
subKeys(M[i][1], pubs[i].mask, C);
ge_p3 p3;
CHECK_AND_ASSERT_MES_L1(ge_frombytes_vartime(&p3, pubs[i].mask.bytes) == 0, false, "point conv failed");
ge_sub(&p1, &p3, &Ccached);
ge_p1p1_to_p3(&p3, &p1);
ge_p3_tobytes(M[i][1].bytes, &p3);
}
//DP(C);
return MLSAG_Ver(message, M, mg, rows);