| 2022 | ICISC | Preimage Sampling in the Higher-bit Approximate Setting with a Non-spherical Gaussian Sampler. | Analle Le Dvhat, Shingo Hasegawa, Hiroki Shizuya |
| 2021 | CANS | On the Higher-Bit Version of Approximate Inhomogeneous Short Integer Solution Problem. | Analle Le Dvhat, Hiroki Shizuya, Shingo Hasegawa |
| 2016 | ISITA | A construction of attribute-based aggregate signatures. | Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya, Ryo Takahashi |
| 2014 | ACISP | On the Impossibility of Proving Security of Strong-RSA Signatures via the RSA Assumption. | Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya |
| 2014 | FUN | Practical Card-Based Cryptography. | Takaaki Mizuki, Hiroki Shizuya |
| 2014 | ISITA | Password-protected secret-sharing schemes without random oracles. | Shingo Hasegawa, Shuji Isobe, Jun-ya Iwazaki, Eisuke Koizumi, Hiroki Shizuya |
| 2013 | ACISP | Toward Separating the Strong Adaptive Pseudo-freeness from the Strong RSA Assumption. | Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Eisuke Koizumi, Hiroki Shizuya |
| 2009 | CANS | On the Complexity of Computing Discrete Logarithms over Algebraic Tori. | Shuji Isobe, Eisuke Koizumi, Yuji Nishigaki, Hiroki Shizuya |
| 2002 | INDOCRYPT | Spending Offline Divisible Coins with Combining Capability. | Eikoh Chida, Yosuke Kasai, Masahiro Mambo, Hiroki Shizuya |
| 2001 | ACISP | Evaluation of Tamper-Resistant Software Deviating from Structured Programming Rules. | Hideaki Goto, Masahiro Mambo, Hiroki Shizuya, Yasuyoshi Watanabe |
| 1999 | EuroCrypt | Dealing Necessary and Sufficient Numbers of Cards for Sharing a One-Bit Secret Key. | Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki |
| 1998 | COCOON | Eulerian Secret Key Exchange. | Takaaki Mizuki, Hiroki Shizuya, Takao Nishizeki |
| 1998 | PKC | A Note on the Complexity of Breaking Okamoto-Tanaka ID-Based Key Exchange Scheme. | Masahiro Mambo, Hiroki Shizuya |
| 1995 | EuroCrypt | Relationships Among the Computational Powers of Breaking Discrete Log Cryptosystems. | Kouichi Sakurai, Hiroki Shizuya |
| 1994 | CRYPTO | Language Dependent Secure Bit Commitment. | Toshiya Itoh, Yuji Ohta, Hiroki Shizuya |
| 1992 | EuroCrypt | How Intractable Is the Discrete Logarithm for a General Finite Group? | Tatsuaki Okamoto, Kouichi Sakurai, Hiroki Shizuya |
| 1991 | ASIACRYPT | Any Language in IP Has a Divertable ZKIP. | Toshiya Itoh, Kouichi Sakurai, Hiroki Shizuya |
| 1991 | EuroCrypt | On the Complexity of Hyperelliptic Discrete Logarithm Problem. | Hiroki Shizuya, Toshiya Itoh, Kouichi Sakurai |
| 1990 | ASIACRYPT | Demonstrating Possession without Revealing Factors and its Application. | Hiroki Shizuya, Kenji Koyama, Toshiya Itoh |