Ryou Fujita

15 papers C 3Journal 11Unranked 1
YearRankTypeTitle / Venue / Authors
2013 — conf
Privacy Preserving Data Processing with Collaboration of Homomorphic Cryptosystems.
Financial Cryptography Workshops
Shigeo Tsujii, Hiroshi Doi, Ryou Fujita, Masahito Gotaishi, Yukiyasu Tsunoo, Takahiko Syouji
2012 J jnl
Construction of the Tsujii-Shamir-Kasahara (TSK) Type Multivariate Public Key Cryptosystem, which relies on the Difficulty of Prime Factorization.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryou Fujita
2012 C conf
Scheme overcoming incompatibility of privacy and utilization of personal data.
ISITA
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Hiroshi Yamaguchi, Masahito Gotaishi, Yukiyasu Tsunoo, Takahiko Syouji, Norihisa Doi
2010 J jnl
Dually-Perturbed Matsumoto-Imai Signature (DPMS) Scheme.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita, Shigeo Tsujii
2010 C conf
Proposal of a Signature Scheme Based on STS Trapdoor.
PQCrypto
Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita
2010 J jnl
Proposal of a Signature Scheme based on STS Trapdoor.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita
2009 J jnl
Proposal of PPS Multivariate Public Key Cryptosystems.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryou Fujita, Masao Kasahara
2009 J jnl
Security Enhancement of Various MPKCs by 2-Layer Nonlinear Piece in Hand Method.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko
2009 J jnl
Security Enhancement of Various MPKCs by 2-layer Nonlinear Piece In Hand Method.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko
2008 J jnl
Nonlinear Piece In Hand Matrix Method for Enhancing Security of Multivariate Public Key Cryptosystems.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
2008 C conf
Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems.
PQCrypto
Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii
2008 J jnl
Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems.
IACR Cryptol. ePrint Arch.
Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii
2007 J jnl
Proposal for Piece in Hand Matrix: General Concept for Enhancing Security of Multivariate Public Key Cryptosystems.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
2006 J jnl
Proposal for Piece In Hand Matrix Ver.2: General Concept for Enhancing Security of Multivariate Public Key Cryptosystems.
IACR Cryptol. ePrint Arch.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita
2004 J jnl
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.
Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita