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precalc the ge_p3 representation of H

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moneromooo-monero
2018-05-24 20:14:09 +01:00
parent ef56529f93
commit 1b867e7f40
5 changed files with 26 additions and 14 deletions
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4
src/ringct/rctOps.cpp
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@@ -193,10 +193,8 @@ namespace rct {
//Computes aH where H= toPoint(cn_fast_hash(G)), G the basepoint
key scalarmultH(const key & a) {
ge_p3 A;
ge_p2 R;
CHECK_AND_ASSERT_THROW_MES_L1(ge_frombytes_vartime(&A, H.bytes) == 0, "ge_frombytes_vartime failed at "+boost::lexical_cast<std::string>(__LINE__));
ge_scalarmult(&R, a.bytes, &A);
ge_scalarmult(&R, a.bytes, &ge_p3_H);
key aP;
ge_tobytes(aP.bytes, &R);
return aP;