Ryou Fujita

	2012
13		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 Cryptology ePrint Archive 2012: 145 (2012)
	2010
12		Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita: Proposal of a Signature Scheme Based on STS Trapdoor. PQCrypto 2010: 201-217
11		Shigeo Tsujii, Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita: Proposal of a Signature Scheme based on STS Trapdoor. IACR Cryptology ePrint Archive 2010: 118 (2010)
10		Masahito Gotaishi, Kohtaro Tadaki, Ryou Fujita, Shigeo Tsujii: Dually-Perturbed Matsumoto-Imai Signature (DPMS) Scheme. IEICE Transactions 93-A(6): 1078-1085 (2010)
	2009
9		Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryou Fujita, Masao Kasahara: Proposal of PPS Multivariate Public Key Cryptosystems. IACR Cryptology ePrint Archive 2009: 264 (2009)
8		Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko: Security Enhancement of Various MPKCs by 2-layer Nonlinear Piece In Hand Method. IACR Cryptology ePrint Archive 2009: 61 (2009)
7		Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita, Masahito Gotaishi, Toshinobu Kaneko: Security Enhancement of Various MPKCs by 2-Layer Nonlinear Piece in Hand Method. IEICE Transactions 92-A(10): 2438-2446 (2009)
	2008
6		Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii: Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems. PQCrypto 2008: 148-164
5		Ryou Fujita, Kohtaro Tadaki, Shigeo Tsujii: Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems. IACR Cryptology ePrint Archive 2008: 298 (2008)
4		Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita: Nonlinear Piece In Hand Matrix Method for Enhancing Security of Multivariate Public Key Cryptosystems. IACR Cryptology ePrint Archive 2008: 77 (2008)
	2007
3		Shigeo Tsujii, Kohtaro Tadaki, Ryou Fujita: Proposal for Piece in Hand Matrix: General Concept for Enhancing Security of Multivariate Public Key Cryptosystems. IEICE Transactions 90-A(5): 992-999 (2007)
	2006
2		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 Cryptology ePrint Archive 2006: 51 (2006)
	2004
1		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 Cryptology ePrint Archive 2004: 366 (2004)

Coauthor Index

1	Masahito Gotaishi	[7] [8] [9] [10] [11] [12] [13]
2	Toshinobu Kaneko	[7] [8]
3	Masao Kasahara	[9]
4	Kohtaro Tadaki	[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
5	Shigeo Tsujii	[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]

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