Ryou Fujita

Publication Activity (10 Years)

Years Active: 2004-2013
Publications (10 Years): 0

Top Topics

Privacy Preserving

Public Key Cryptosystem

Homomorphic Encryption

Top Venues

IACR Cryptol. ePrint Arch.

Financial Cryptography Workshops

Publications

Shigeo Tsujii, Hiroshi Doi, Ryou Fujita, Masahito Gotaishi, Yukiyasu Tsunoo, Takahiko Syouji
Privacy Preserving Data Processing with Collaboration of Homomorphic Cryptosystems. Financial Cryptography Workshops (2013)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Hiroshi Yamaguchi, Masahito Gotaishi, Yukiyasu Tsunoo, Takahiko Syouji, Norihisa Doi
Scheme overcoming incompatibility of privacy and utilization of personal data. ISITA (2012)
Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryou Fujita
Construction of the Tsujii-Shamir-Kasahara (TSK) Type Multivariate Public Key Cryptosystem, which relies on the Difficulty of Prime Factorization. IACR Cryptol. ePrint Arch. 2012 (2012)
Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita
Proposal of a Signature Scheme Based on STS Trapdoor. PQCrypto (2010)
Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita
Proposal of a Signature Scheme based on STS Trapdoor. IACR Cryptol. ePrint Arch. 2010 (2010)
Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita, Shigeo Tsujii
Dually-Perturbed Matsumoto-Imai Signature (DPMS) Scheme. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2010)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko
Security Enhancement of Various MPKCs by 2-layer Nonlinear Piece In Hand Method. IACR Cryptol. ePrint Arch. 2009 (2009)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko
Security Enhancement of Various MPKCs by 2-Layer Nonlinear Piece in Hand Method. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2009)
Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryou Fujita, Masao Kasahara
Proposal of PPS Multivariate Public Key Cryptosystems. IACR Cryptol. ePrint Arch. 2009 (2009)
Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii
Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems. PQCrypto (2008)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
Nonlinear Piece In Hand Matrix Method for Enhancing Security of Multivariate Public Key Cryptosystems. IACR Cryptol. ePrint Arch. 2008 (2008)
Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii
Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems. IACR Cryptol. ePrint Arch. 2008 (2008)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
Proposal for Piece in Hand Matrix: General Concept for Enhancing Security of Multivariate Public Key Cryptosystems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2007)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
Proposal for Piece In Hand Matrix Ver.2: General Concept for Enhancing Security of Multivariate Public Key Cryptosystems. IACR Cryptol. ePrint Arch. 2006 (2006)
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
Piece In Hand Concept for Enhancing the Security of Multivariate Type Public Key Cryptosystems: Public Key Without Containing All the Information of Secret Key. IACR Cryptol. ePrint Arch. 2004 (2004)