Hiroki Shizuya

Publication Activity (10 Years)

Years Active: 1990-2022
Publications (10 Years): 9

Top Topics

Integer Solution

Top Venues

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

IEICE Trans. Inf. Syst.

Publications

Anaëlle Le Dévéhat, Hiroki Shizuya, Shingo Hasegawa
On the Higher bit Version of Approximate Inhomogeneous Short Integer Solution Problem. IACR Cryptol. ePrint Arch. 2022 (2022)
Anaëlle Le Dévéhat, Shingo Hasegawa, Hiroki Shizuya
Preimage Sampling in the Higher-bit Approximate Setting with a Non-spherical Gaussian Sampler. ICISC (2022)
Anaëlle Le Dévéhat, Hiroki Shizuya, Shingo Hasegawa
On the Higher-Bit Version of Approximate Inhomogeneous Short Integer Solution Problem. CANS (2021)
Firas Kraiem, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
On a Relation between Knowledge-of-Exponent Assumptions and the DLog vs. CDH Question. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2021)
Shingo Hasegawa, Masashi Hisai, Hiroki Shizuya
Public-Key Projective Arithmetic Functional Encryption. Int. J. Netw. Comput. 11 (2) (2021)
Shingo Hasegawa, Masashi Hisai, Hiroki Shizuya
Public-key Projective Arithmetic Functional Encryption. CANDAR (2020)
Takahiro Saito, Daiki Miyahara, Yuta Abe, Takaaki Mizuki, Hiroki Shizuya
How to Implement a Non-uniform or Non-closed Shuffle. TPNC (2020)
Takaaki Mizuki, Hiroki Shizuya
Computational Model of Card-Based Cryptographic Protocols and Its Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2017)
Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya, Ryo Takahashi
A construction of attribute-based aggregate signatures. ISITA (2016)
Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Hiroki Shizuya
A Strengthened Security Notion for Password-Protected Secret Sharing Schemes. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2015)
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya
On the Impossibility of Proving Security of Strong-RSA Signatures via the RSA Assumption. ACISP (2014)
Shuji Isobe, Eisuke Koizumi, Yuji Nishigaki, Hiroki Shizuya
On the Complexity of Computing Discrete Logarithms over Algebraic Tori. IEICE Trans. Inf. Syst. (3) (2014)
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya
The RSA Group Is Adaptive Pseudo-Free under the RSA Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2014)
Takaaki Mizuki, Hiroki Shizuya
Practical Card-Based Cryptography. FUN (2014)
Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Hiroki Shizuya
Password-protected secret-sharing schemes without random oracles. ISITA (2014)
Takaaki Mizuki, Hiroki Shizuya
A formalization of card-based cryptographic protocols via abstract machine. Int. J. Inf. Sec. 13 (1) (2014)
Ji-Won Huh, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
On the Length-Decreasing Self-Reducibility and the Many-One-Like Reducibilities for Partial Multivalued Functions. IEICE Trans. Inf. Syst. (3) (2013)
Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
Toward Separating the Strong Adaptive Pseudo-freeness from the Strong RSA Assumption. ACISP (2013)
Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya, Katsuhiro Tashiro
On the pseudo-freeness and the CDH assumption. Int. J. Inf. Sec. 8 (5) (2009)
Shuji Isobe, Eisuke Koizumi, Yuji Nishigaki, Hiroki Shizuya
On the Complexity of Computing Discrete Logarithms over Algebraic Tori. CANS (2009)
Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya
NPMV-Complete Functions That Compute Discrete Logarithms and Integer Factorization. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2008)
Shingo Hasegawa, Hiroyuki Hatanaka, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya
Making Cryptographic Primitives Harder. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2008)
Shuji Isobe, Wataru Kumagai, Masahiro Mambo, Hiroki Shizuya
. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2007)
Shuji Isobe, Tetsuo Kuriyama, Masahiro Mambo, Hiroki Shizuya
On the Polynomial Time Computability of Abstract Ray-Tracing Problems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2005)
Chisato Konoma, Masahiro Mambo, Hiroki Shizuya
The Computational Difficulty of Solving Cryptographic Primitive Problems Related to the Discrete Logarithm Problem. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2005)
Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki
Characterization of optimal key set protocols. Discret. Appl. Math. 131 (1) (2003)
Soohyun Oh, Masahiro Mambo, Hiroki Shizuya, Dongho Won
On the Security of Girault Key Agreement Protocols against Active Attacks. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2003)
Eikoh Chida, Toshiya Itoh, Hiroki Shizuya
A Note on the Relationships among Certified Discrete Log Cryptosystems. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2003)
Shintaro Itagaki, Masahiro Mambo, Hiroki Shizuya
On the Strength of the Strong RSA Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2003)
Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki
A complete characterization of a family of key exchange protocols. Int. J. Inf. Sec. 1 (2) (2002)
Eikoh Chida, Yosuke Kasai, Masahiro Mambo, Hiroki Shizuya
Spending Offline Divisible Coins with Combining Capability. INDOCRYPT (2002)
Hideaki Goto, Masahiro Mambo, Hiroki Shizuya, Yasuyoshi Watanabe
Evaluation of Tamper-Resistant Software Deviating from Structured Programming Rules. ACISP (2001)
Hideaki Goto, Masahiro Mambo, Kenjiro Matsumura, Hiroki Shizuya
An Approach to the Objective and Quantitative Evaluation of Tamper-Resistant Software. ISW (2000)
Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki
Characterization of Optimal Key Set Protocols. IFIP TCS (2000)
Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki
Dealing Necessary and Sufficient Numbers of Cards for Sharing a One-Bit Secret Key. EUROCRYPT (1999)
Mike Burmester, Yvo Desmedt, Toshiya Itoh, Kouichi Sakurai, Hiroki Shizuya
Divertible and Subliminal-Free Zero-Knowledge Proofs for Languages. J. Cryptol. 12 (3) (1999)
Masahiro Mambo, Hiroki Shizuya
A Note on the Complexity of Breaking Okamoto-Tanaka ID-Based Key Exchange Scheme. Public Key Cryptography (1998)
Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki
Eulerian Secret Key Exchange. COCOON (1998)
Kouichi Sakurai, Hiroki Shizuya
A Structural Comparison of the Computational Difficulty of Breaking Discrete Log Cryptosystems. J. Cryptol. 11 (1) (1998)
Toshiya Itoh, Yuji Ohta, Hiroki Shizuya
A Language-Dependent Cryptographic Primitive. J. Cryptol. 10 (1) (1997)
Mike Burmester, Yvo Desmedt, Toshiya Itoh, Kouichi Sakurai, Hiroki Shizuya, Moti Yung
A Progress Report on Subliminal-Free Channels. Information Hiding (1996)
Kouichi Sakurai, Hiroki Shizuya
Relationships Among the Computational Powers of Breaking Discrete Log Cryptosystems. EUROCRYPT (1995)
Toshiya Itoh, Yuji Ohta, Hiroki Shizuya
Language Dependent Secure Bit Commitment. CRYPTO (1994)
Tatsuaki Okamoto, Kouichi Sakurai, Hiroki Shizuya
How Intractable Is the Discrete Logarithm for a General Finite Group? EUROCRYPT (1992)
Hiroki Shizuya, Toshiya Itoh, Kouichi Sakurai
On the Complexity of Hyperelliptic Discrete Logarithm Problem. EUROCRYPT (1991)
Toshiya Itoh, Kouichi Sakurai, Hiroki Shizuya
Any Language in IP Has a Divertable ZKIP. ASIACRYPT (1991)
Hiroki Shizuya, Kenji Koyama, Toshiya Itoh
Demonstrating Possession without Revealing Factors and its Application. AUSCRYPT (1990)