Public-Key Cryptosystems with Primitive Power Roots of Unity. - Takato Hirano; Koichiro Wada; Keisuke Tanaka (ACISP, 2008)

Primitive Power Roots of Unity and Its Application to Encryption. - Takato Hirano; Koichiro Wada; Keisuke Tanaka (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Key Generation for Fast Inversion of the Paillier Encryption Function. - Takato Hirano; Keisuke Tanaka (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Ciphertext-Policy Delegatable Hidden Vector Encryption and Its Application to Searchable Encryption in Multi-user Setting. - Mitsuhiro Hattori; Takato Hirano; Takashi Ito; Nori Matsuda; Takumi Mori; Yusuke Sakai 001; Kazuo Ohta (IMACC, 2011)

Homomorphic encryption based cancelable biometrics secure against replay and its related attack. - Takato Hirano; Mitsuhiro Hattori; Takashi Ito; Nori Matsuda; Takumi Mori (ISITA, 2012)

Cryptographically-Secure and Efficient Remote Cancelable Biometrics Based on Public-Key Homomorphic Encryption. - Takato Hirano; Mitsuhiro Hattori; Takashi Ito; Nori Matsuda (IWSEC, 2013)

Ciphertext-Policy Delegatable Hidden Vector Encryption and Its Application. - Mitsuhiro Hattori; Takato Hirano; Takashi Ito; Nori Matsuda; Takumi Mori; Yusuke Sakai 001; Kazuo Ohta (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013)

SEPM: Efficient Partial Keyword Search on Encrypted Data. - Yutaka Kawai; Takato Hirano; Yoshihiro Koseki; Tatsuji Munaka (CANS, 2015)

Probabilistic Generation of Trapdoors: Reducing Information Leakage of Searchable Symmetric Encryption. - Kenichiro Hayasaka; Yutaka Kawai; Yoshihiro Koseki; Takato Hirano; Kazuo Ohta; Mitsugu Iwamoto (CANS, 2016)

A practical attack to AINA2014's countermeasure for cancelable biometric authentication protocols. - Takato Hirano; Takashi Ito; Yutaka Kawai; Nori Matsuda; Takumi Yamamoto; Tatsuji Munaka (ISITA, 2016)

Simple, Secure, and Efficient Searchable Symmetric Encryption with Multiple Encrypted Indexes. - Takato Hirano; Mitsuhiro Hattori; Yutaka Kawai; Nori Matsuda; Mitsugu Iwamoto; Kazuo Ohta; Yusuke Sakai 001; Tatsuji Munaka (IWSEC, 2016)

Privacy-Utility Tradeoff for Applications Using Energy Disaggregation of Smart-Meter Data. - Mitsuhiro Hattori; Takato Hirano; Nori Matsuda; Rina Shimizu; Ye Wang 001 (ACISP (2), 2017)

On methods for privacy-preserving energy disaggregation. - Ye Wang 001; Nisarg Raval; Prakash Ishwar; Mitsuhiro Hattori; Takato Hirano; Nori Matsuda; Rina Shimizu (ICASSP, 2017)

Efficient Trapdoor Generation from Multiple Hashing in Searchable Symmetric Encryption. - Takato Hirano; Yutaka Kawai; Yoshihiro Koseki (ISPEC, 2018)

Token-Based Multi-input Functional Encryption. - Nuttapong Attrapadung; Goichiro Hanaoka; Takato Hirano; Yutaka Kawai; Yoshihiro Koseki; Jacob C. N. Schuldt (ProvSec, 2018)

Privacy-Utility Tradeoff for Applications Using Energy Disaggregation of Smart-Meter Data. - Mitsuhiro Hattori; Takato Hirano; Nori Matsuda; Fumio Omatsu; Rina Shimizu; Ye Wang 001 (J. Inf. Process., 2018)

Proxy Re-Encryption That Supports Homomorphic Operations for Re-Encrypted Ciphertexts. - Yutaka Kawai; Takahiro Matsuda 002; Takato Hirano; Yoshihiro Koseki; Goichiro Hanaoka (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019)

Public-key Searchable Encryption with Index Generation for Shared Database. - Nori Matsuda; Takato Hirano; Yutaka Kawai; Takashi Ito; Mitsuhiro Hattori; Tadakazu Yamanaka; Masakatsu Nishigaki (J. Inf. Process., 2020)

DBMS-Friendly Searchable Symmetric Encryption: Constructing Index Generation Suitable for Database Management Systems. - Takato Hirano; Yutaka Kawai; Yoshihiro Koseki (DSC, 2021)

Determination of Parameters Balancing between Security and Search Performance on Searchable Encryption. - Ikumi Mori; Takato Hirano; Yoshitaka Nakamura; Hiroshi Inamura (ICMU, 2021)

Multi-user Dynamic Searchable Encryption for Prefix-Fixing Predicates from Symmetric-Key Primitives. - Takato Hirano; Yutaka Kawai; Yoshihiro Koseki; Satoshi Yasuda; Yohei Watanabe 001; Takumi Amada; Mitsugu Iwamoto; Kazuo Ohta (SAC (1), 2024)