Efficient Arithmetic on Subfield Elliptic Curves over Small Odd Characteristics. - Keisuke Hakuta; Hisayoshi Sato; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2005)

Efficient arithmetic on subfield elliptic curves over small finite fields of odd characteristic. - Keisuke Hakuta; Hisayoshi Sato; Tsuyoshi Takagi (J. Math. Cryptol., 2010)

Batch Verification Suitable for Efficiently Verifying a Limited Number of Signatures. - Keisuke Hakuta; Yosuke Katoh; Hisayoshi Sato; Tsuyoshi Takagi (ICISC, 2012)

Some properties of $τ$-adic expansions on hyperelliptic Koblitz curves. - Keisuke Hakuta; Hisayoshi Sato; Tsuyoshi Takagi (CoRR, 2014)

Metrics on the Sets of Nonsupersingular Elliptic Curves in Simplified Weierstrass Form over Finite Fields of Characteristic Two. - Keisuke Hakuta (Int. J. Math. Math. Sci., 2015)

On tameness of Matsumoto-Imai central maps in three variables over the finite field 픽2. - Keisuke Hakuta; Hisayoshi Sato; Tsuyoshi Takagi (Adv. Math. Commun., 2016)

Secure Comparison Protocol with Encrypted Output and the Computation for Proceeding 2 Bits-by-2 Bits. - Takumi Kobayashi; Keisuke Hakuta (WISA, 2018)

ECC Atomic Block against Strong Side-Channel Attacks Using Binary Curves. - Yusuke Takemura; Keisuke Hakuta; Naoyuki Shinohara (CANDAR Workshops, 2019)

ECC Atomic Block with NAF against Strong Side-Channel Attacks on Binary Curves. - Yusuke Takemura; Keisuke Hakuta; Naoyuki Shinohara (Int. J. Netw. Comput., 2020)

A Generalization of Secure Comparison Protocol with Encrypted Output and Its Efficiency Estimation. - Takumi Kobayashi; Keisuke Hakuta (ICICT (2), 2021)