Fast Elliptic Curve Algorithm Combining Frobenius Map and Table Reference to Adapt to Higher Characteristic. - Tetsutaro Kobayashi; Hikaru Morita; Kunio Kobayashi; Fumitaka Hoshino (EUROCRYPT, 1999)

Public-Key-Based High-Speed Payment (Electronic Money) System Using Contact-Less Smart Cards. - Hideo Yamamoto; Tetsutaro Kobayashi; Masahiro Morita; Ryuji Yamada (E-smart, 2001)

A Cyclic Window Algorithm for ECC Defined over Extension Fields. - Kazumaro Aoki; Fumitaka Hoshino; Tetsutaro Kobayashi (ICICS, 2001)

Elliptic Curve Arithmetic Using SIMD. - Kazumaro Aoki; Fumitaka Hoshino; Tetsutaro Kobayashi; Hiroaki Oguro (ISC, 2001)

Lenient/Strict Batch Verification in Several Groups. - Fumitaka Hoshino; Masayuki Abe; Tetsutaro Kobayashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

A Cyclic Window Algorithm for Elliptic Curves over OEF. - Tetsutaro Kobayashi; Fumitaka Hoshino; Kazumaro Aoki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Efficient τ-Adic Sliding Window Method on Elliptic Curve Cryptosystems. - Hiroaki Oguro; Tetsutaro Kobayashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Using the Elliptic Curve Signature Algorithm (ECDSA) for XML Digital Signatures. - Simon Blake-Wilson; Gregor Karlinger; Tetsutaro Kobayashi; Yongge Wang 001 (RFC, 2005)

Compressed Jacobian Coordinates for OEF. - Fumitaka Hoshino; Tetsutaro Kobayashi; Kazumaro Aoki (VIETCRYPT, 2006)

Efficient Algorithms for Tate Pairing. - Tetsutaro Kobayashi; Kazumaro Aoki; Hideki Imai (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Candidate One-Way Functions on Non-Supersingular Elliptic Curves. - Taiichi Saito; Fumitaka Hoshino; Shigenori Uchiyama; Tetsutaro Kobayashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Efficient GF(3m) Multiplication Algorithm for eta T Pairing. - Gen Takahashi; Fumitaka Hoshino; Tetsutaro Kobayashi (IACR Cryptol. ePrint Arch., 2007)

Security of ESIGN-PSS. - Tetsutaro Kobayashi; Eiichiro Fujisaki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Relinkable Ring Signature. - Koutarou Suzuki; Fumitaka Hoshino; Tetsutaro Kobayashi (CANS, 2009)

Anonymous Hierarchical Identity-Based Encryption with Constant Size Ciphertexts. - Jae Hong Seo; Tetsutaro Kobayashi; Miyako Ohkubo; Koutarou Suzuki (Public Key Cryptography, 2009)

An Improvement of Key Generation Algorithm for Gentry's Homomorphic Encryption Scheme. - Naoki Ogura; Go Yamamoto; Tetsutaro Kobayashi; Shigenori Uchiyama (IWSEC, 2010)

Anonymizable Signature and Its Construction from Pairings. - Fumitaka Hoshino; Tetsutaro Kobayashi; Koutarou Suzuki (Pairing, 2010)

Self-correctors for Cryptographic Modules. - Go Yamamoto; Tetsutaro Kobayashi (IMACC, 2011)

Faster MapToPoint on Supersingular Elliptic Curves in Characteristic 3. - Yuto Kawahara; Tetsutaro Kobayashi; Gen Takahashi; Tsuyoshi Takagi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Anonymous Hierarchical Identity-Based Encryption with Short Ciphertexts. - Jae Hong Seo; Tetsutaro Kobayashi; Miyako Ohkubo; Koutarou Suzuki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

An Experiment of Number Field Sieve for Discrete Logarithm Problem over GF(p 12). - Kenichiro Hayasaka; Kazumaro Aoki; Tetsutaro Kobayashi; Tsuyoshi Takagi (Number Theory and Cryptography, 2013)

Constructing Symmetric Pairings over Supersingular Elliptic Curves with Embedding Degree Three. - Tadanori Teruya; Kazutaka Saito; Naoki Kanayama; Yuto Kawahara; Tetsutaro Kobayashi; Eiji Okamoto (Pairing, 2013)

id-eCK Secure ID-Based Authenticated Key Exchange on Symmetric and Asymmetric Pairing. - Atsushi Fujioka; Fumitaka Hoshino; Tetsutaro Kobayashi; Koutarou Suzuki; Berkant Ustaoglu; Kazuki Yoneyama (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013)

An experiment of number field sieve for discrete logarithm problem over $ text{GF}(p^n)$. - Kenichiro Hayasaka; Kazumaro Aoki; Tetsutaro Kobayashi; Tsuyoshi Takagi (JSIAM Lett., 2014)

A construction of 3-dimensional lattice sieve for number field sieve over F_{p^n}. - Kenichiro Hayasaka; Kazumaro Aoki; Tetsutaro Kobayashi; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2015)

Multi-Cast Key Distribution: Scalable, Dynamic and Provably Secure Construction. - Kazuki Yoneyama; Reo Yoshida; Yuto Kawahara; Tetsutaro Kobayashi; Hitoshi Fuji; Tomohide Yamamoto (IACR Cryptol. ePrint Arch., 2016)

Secure and Efficient Pairing at 256-Bit Security Level. - Yutaro Kiyomura; Akiko Inoue; Yuto Kawahara; Masaya Yasuda; Tsuyoshi Takagi; Tetsutaro Kobayashi (ACNS, 2017)

Exposure-Resilient Identity-Based Dynamic Multi-Cast Key Distribution. - Kazuki Yoneyama; Reo Yoshida; Yuto Kawahara; Tetsutaro Kobayashi; Hitoshi Fuji; Tomohide Yamamoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)