secretflow/heu

OU解密

ssdyue opened this issue · 2 comments

ssdyue commented

heu/heu/library/algorithms/ou/decryptor.cc

Line 32 in 42fc559

MPInt::MulMod(c / sk_.p_, sk_.gp_inv_, sk_.p_, out);

根据ou解密公式 (c-1)/p * gp_inv mod p，此处是否少减了1:
MPInt::MulMod((c-MPInt::_1_) / sk_.p_, sk_.gp_inv_, sk_.p_, out);