Semantic Interoperability for Knowledge-Based Service. - Hiroshi Yamaguchi; Masahito Gotaishi; Yuko Mori; Chittoor V. Ramamoorthy (ICSC, 2009)

Proposal of PPS Multivariate Public Key Cryptosystems. - Shigeo Tsujii; Kohtaro Tadaki; Masahito Gotaishi; Ryou Fujita; Masao Kasahara (IACR Cryptol. ePrint Arch., 2009)

Security Enhancement of Various MPKCs by 2-Layer Nonlinear Piece in Hand Method. - Shigeo Tsujii; Kohtaro Tadaki; Ryou Fujita; Masahito Gotaishi; Toshinobu Kaneko (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Improvement of the Low Rank Attack. - Masahito Gotaishi (ISITA, 2010)

Enhanced STS using Check Equation -Extended Version of the Signature scheme proposed in the PQCrypt2010-. - Shigeo Tsujii; Masahito Gotaishi (IACR Cryptol. ePrint Arch., 2010)

Proposal of a Signature Scheme based on STS Trapdoor. - Shigeo Tsujii; Masahito Gotaishi; Kohtaro Tadaki; Ryou Fujita (IACR Cryptol. ePrint Arch., 2010)

Dually-Perturbed Matsumoto-Imai Signature (DPMS) Scheme. - Masahito Gotaishi; Kohtaro Tadaki; Ryou Fujita; Shigeo Tsujii (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Hidden Pair of Bijection Signature Scheme. - Masahito Gotaishi; Shigeo Tsujii (IACR Cryptol. ePrint Arch., 2011)

Scheme overcoming incompatibility of privacy and utilization of personal data. - Shigeo Tsujii; Kohtaro Tadaki; Ryou Fujita; Hiroshi Yamaguchi; Masahito Gotaishi; Yukiyasu Tsunoo; Takahiko Syouji; Norihisa Doi (ISITA, 2012)

Construction of the Tsujii-Shamir-Kasahara (TSK) Type Multivariate Public Key Cryptosystem, which relies on the Difficulty of Prime Factorization. - Shigeo Tsujii; Kohtaro Tadaki; Masahito Gotaishi; Ryou Fujita (IACR Cryptol. ePrint Arch., 2012)

Privacy Preserving Data Processing with Collaboration of Homomorphic Cryptosystems. - Shigeo Tsujii; Hiroshi Doi; Ryou Fujita; Masahito Gotaishi; Yukiyasu Tsunoo; Takahiko Syouji (Financial Cryptography Workshops, 2013)

Privacy Preserving Problem Solving Scheme. - Hiroshi Yamaguchi; Masahito Gotaishi; Phillip C.-Y. Sheu; Shigeo Tsujii (ICITCS, 2013)

Privacy Preserving Data Processing. - Hiroshi Yamaguchi; Masahito Gotaishi; Phillip C.-Y. Sheu; Shigeo Tsujii (AINA, 2015)

Secure problems solving scheme. - Hiroshi Yamaguchi; Masahito Gotaishi; Shigeo Tsujii (ICSC, 2015)

Proposal of the Multivariate Public Key Cryptosystem Relying on the Difficulty of Factoring a Product of Two Large Prime Numbers. - Shigeo Tsujii; Kohtaro Tadaki; Ryo Fujita; Masahito Gotaishi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

Organizational Cryptography for Access Control. - Masahito Gotaishi; Shigeo Tsujii (IACR Cryptol. ePrint Arch., 2018)

Proposal of Multivariate Public Key Cryptosystem Based on Modulus of Numerous Prime Numbers and CRT with Security of IND-CPA. - Shigeo Tsujii; Ryo Fujita; Masahito Gotaishi (IACR Cryptol. ePrint Arch., 2020)

3-Layer Public Key Cryptosystem with Short Tandem Repeat DNA. - Shigeo Tsujii; Toshiaki Saisho; Masao Yamasawa; Masahito Gotaishi; Kou Shikata; Koji Sasaki; Nobuharu Suzuki; Masaki Hashiyada (IACR Cryptol. ePrint Arch., 2020)