Complexity bounds on Semaev’s naive index calculus method for ECDLP

by Yokoyama Kazuhiro, Yasuda Masaya, Takahashi Yasushi, Kogure Jun
Published 2020-10-01

Analysis of decreasing squared-sum of Gram–Schmidt lengths for short lattice vectors

by Yasuda Masaya, Yokoyama Kazuhiro, Shimoyama Takeshi, Kogure Jun, Koshiba Takeshi
Published 2017-03-01

On the exact decryption range for Gentry–Halevi's implementation of fully homomorphic encryption

by Yasuda Masaya, Yokoyama Kazuhiro, Shimoyama Takeshi, Kogure Jun, Koshiba Takeshi
Published 2014-09-01

Algebraic approaches for solving isogeny problems of prime power degrees

by Takahashi Yasushi, Kudo Momonari, Fukasaku Ryoya, Ikematsu Yasuhiko, Yasuda Masaya, Yokoyama Kazuhiro
Published 2020-11-01