A Gröbner Basis Method for Modules over Rings of Differential Operators. - Toshinori Oaku; Takeshi Shimoyama (J. Symb. Comput., 1994)

Localization and Primary Decomposition of Polynomial Ideals. - Takeshi Shimoyama; Kazuhiro Yokoyama (J. Symb. Comput., 1996)

Improved fast software implementation of block ciphers. - Takeshi Shimoyama; Seiichi Amada; Shiho Moriai (ICICS, 1997)

Improving the Higher Order Differential Attack and Cryptanalysis of the KN Cipher. - Takeshi Shimoyama; Shiho Moriai; Toshinobu Kaneko (ISW, 1997)

Quadratic Relation of S-box and Its Application to the Linear Attack of Full Round DES. - Takeshi Shimoyama; Toshinobu Kaneko (CRYPTO, 1998)

Higher Order Differential Attak of CAST Cipher. - Shiho Moriai; Takeshi Shimoyama; Toshinobu Kaneko (FSE, 1998)

Higher Order Differential Attack Using Chosen Higher Order Differences. - Shiho Moriai; Takeshi Shimoyama; Toshinobu Kaneko (Selected Areas in Cryptography, 1998)

Interpolation Attacks of the Block Cipher: SNAKE. - Shiho Moriai; Takeshi Shimoyama; Toshinobu Kaneko (FSE, 1999)

The Block Cipher SC2000. - Takeshi Shimoyama; Hitoshi Yanami; Kazuhiro Yokoyama; Masahiko Takenaka; Kouichi Itoh; Jun Yajima; Naoya Torii; Hidema Tanaka (FSE, 2001)

Multiple Linear Cryptanalysis of a Reduced Round RC6. - Takeshi Shimoyama; Masahiko Takenaka; Takeshi Koshiba (FSE, 2002)

Differential and Linear Cryptanalysis of a Reduced-Round SC2000. - Hitoshi Yanami; Takeshi Shimoyama; Orr Dunkelman (FSE, 2002)

Differential Cryptanalysis of a Reduced-Round SEED. - Hitoshi Yanami; Takeshi Shimoyama (SCN, 2002)

Theoretical Analysis of "Correlations in RC6". - Masahiko Takenaka; Takeshi Shimoyama; Takeshi Koshiba (IACR Cryptol. ePrint Arch., 2002)

GNFS Factoring Statistics of RSA-100, 110, ..., 150. - Kazumaro Aoki; Yuji Kida; Takeshi Shimoyama; Hiroki Ueda (IACR Cryptol. ePrint Arch., 2004)

Theoretical Analysis of chi2 Attack on RC6. - Masahiko Takenaka; Takeshi Shimoyama; Takeshi Koshiba (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2004)

Analysis on the Clockwise Transposition Routing for Dedicated Factoring Devices. - Tetsuya Izu; Noboru Kunihiro; Kazuo Ohta; Takeshi Shimoyama (WISA, 2005)

Wang's sufficient conditions of MD5 are not sufficient. - Jun Yajima; Takeshi Shimoyama (IACR Cryptol. ePrint Arch., 2005)

Development of the Lead-Free Carbon Brush Material for Starters. - Ryoichi Honbo; Koichiro Sawa; Youichi Murakami; Hiroyuki Wakabayashi; Naruhiko Inayoshi; Kyoji Inukai; Takeshi Shimoyama; Naoki Morita (IEICE Trans. Electron., 2005)

Improved Collision Search for SHA-0. - Yusuke Naito 001; Yu Sasaki; Takeshi Shimoyama; Jun Yajima; Noboru Kunihiro; Kazuo Ohta (ASIACRYPT, 2006)

How to Construct Sufficient Conditions for Hash Functions. - Yu Sasaki; Yusuke Naito 001; Jun Yajima; Takeshi Shimoyama; Noboru Kunihiro; Kazuo Ohta (VIETCRYPT, 2006)

Message Modification for Step 21-23 on SHA-0. - Yusuke Naito 001; Yu Sasaki; Takeshi Shimoyama; Jun Yajima; Noboru Kunihiro; Kazuo Ohta (IACR Cryptol. ePrint Arch., 2006)

How to Construct Sufficient Condition in Searching Collisions of MD5. - Yu Sasaki; Yusuke Naito 001; Jun Yajima; Takeshi Shimoyama; Noboru Kunihiro; Kazuo Ohta (IACR Cryptol. ePrint Arch., 2006)

Analysis on Bleichenbacher's Forgery Attack. - Tetsuya Izu; Masahiko Takenaka; Takeshi Shimoyama (ARES, 2007)

A New Strategy for Finding a Differential Path of SHA-1. - Jun Yajima; Yu Sasaki; Yusuke Naito 001; Terutoshi Iwasaki; Takeshi Shimoyama; Noboru Kunihiro; Kazuo Ohta (ACISP, 2007)

CAIRN 2: An FPGA Implementation of the Sieving Step in the Number Field Sieve Method. - Tetsuya Izu; Jun Kogure; Takeshi Shimoyama (CHES, 2007)

Timing to Block Scanning Malwares by Using Combinatorics Proliferation Model. - Kazumasa Omote; Takeshi Shimoyama; Satoru Torii (ICETE (Selected Papers), 2007)

Two Methods for Speeding Up Similarity Measurement for Profile Data. - Takeshi Shimoyama; Yoichi Muraoka (IKE, 2007)

How to Forge a Time-Stamp Which Adobe's Acrobat Accepts. - Tetsuya Izu; Takeshi Shimoyama; Masahiko Takenaka (IMACC, 2007)

Experiments on the Linear Algebra Step in the Number Field Sieve. - Kazumaro Aoki; Takeshi Shimoyama; Hiroki Ueda (IWSEC, 2007)

A Combinatorics Proliferation Model to Determine the Timing for Blocking Scanning Malware. - Kazumasa Omote; Takeshi Shimoyama; Satoru Torii (SECRYPT, 2007)

Low-density attack revisited. - Tetsuya Izu; Jun Kogure; Takeshi Koshiba; Takeshi Shimoyama (Des. Codes Cryptogr., 2007)

Development of the Lead-Free Brush Material for the High-Load Starter. - Ryoichi Honbo; Youichi Murakami; Koichiro Sawa; Hiroyuki Wakabayashi; Naruhiko Inayoshi; Kyoji Inukai; Takeshi Shimoyama; Naoki Morita (IEICE Trans. Electron., 2007)

A strict evaluation method on the number of conditions for the SHA-1 collision search. - Jun Yajima; Terutoshi Iwasaki; Yusuke Naito 001; Yu Sasaki; Takeshi Shimoyama; Noboru Kunihiro; Kazuo Ohta (AsiaCCS, 2008)

Extending Bleichenbacher's Forgery Attack. - Tetsuya Izu; Takeshi Shimoyama; Masahiko Takenaka (J. Inf. Process., 2008)

Forgery Attacks on Time-Stamp, Signed PDF and X.509 Certificate. - Kouichi Itoh; Tetsuya Izu; Wakaha Ogata; Takeshi Shimoyama; Masahiko Takenaka (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

A Strict Evaluation on the Number of Conditions for SHA-1 Collision Search. - Jun Yajima; Terutoshi Iwasaki; Yusuke Naito 001; Yu Sasaki; Takeshi Shimoyama; Thomas Peyrin; Noboru Kunihiro; Kazuo Ohta (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Matrix Representation of Conditions for the Collision Attack of SHA-1 and Its Application to the Message Modification. - Jun Yajima; Takeshi Shimoyama (IWSEC, 2010)

CAIRN: Dedicated Integer Factoring Devices. - Tetsuya Izu; Jun Kogure; Takeshi Shimoyama (NBiS, 2010)

A Combinatorics Proliferation Model with Threshold for Malware Countermeasure. - Kazumasa Omote; Takeshi Shimoyama; Satoru Torii (J. Inf. Process., 2010)

Preimage Attacks on Full-ARIRANG (Poster). - Chiaki Ohtahara; Keita Okada; Yu Sasaki; Takeshi Shimoyama (ACISP, 2011)

Preimage Attacks on Full-ARIRANG: Analysis of DM-Mode with Middle Feed-Forward. - Chiaki Ohtahara; Keita Okada; Yu Sasaki; Takeshi Shimoyama (WISA, 2011)

Breaking Pairing-Based Cryptosystems Using η T Pairing over GF(397). - Takuya Hayashi 001; Takeshi Shimoyama; Naoyuki Shinohara; Tsuyoshi Takagi (ASIACRYPT, 2012)

Analysis of Lattice Reduction Attack against the Somewhat Homomorphic Encryption Based on Ideal Lattices. - Masaya Yasuda; Jun Yajima; Takeshi Shimoyama; Jun Kogure (EuroPKI, 2012)

Key Length Estimation of Pairing-Based Cryptosystems Using η T Pairing. - Naoyuki Shinohara; Takeshi Shimoyama; Takuya Hayashi 001; Tsuyoshi Takagi (ISPEC, 2012)

On the Strength Comparison of the ECDLP and the IFP. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Tetsuya Izu (SCN, 2012)

Breaking pairing-based cryptosystems using ηT pairing over GF(397). - Takuya Hayashi 001; Takeshi Shimoyama; Naoyuki Shinohara; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2012)

Key Length Estimation of Pairing-based Cryptosystems using ηT Pairing. - Naoyuki Shinohara; Takeshi Shimoyama; Takuya Hayashi 001; Tsuyoshi Takagi (IACR Cryptol. ePrint Arch., 2012)

Preimage Attacks on the Step-Reduced RIPEMD-128 and RIPEMD-160. - Chiaki Ohtahara; Yu Sasaki; Takeshi Shimoyama (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)

Packed Homomorphic Encryption Based on Ideal Lattices and Its Application to Biometrics. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (CD-ARES Workshops, 2013)

Secure pattern matching using somewhat homomorphic encryption. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (CCSW, 2013)

Practical Packing Method in Somewhat Homomorphic Encryption. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (DPM/SETOP, 2013)

Privacy-Preserving Wildcards Pattern Matching Using Symmetric Somewhat Homomorphic Encryption. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (ACISP, 2014)

Key Length Estimation of Pairing-Based Cryptosystems Using ηT Pairing over GF(3n). - Naoyuki Shinohara; Takeshi Shimoyama; Takuya Hayashi 001; Tsuyoshi Takagi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)

On the exact decryption range for Gentry-Halevi's implementation of fully homomorphic encryption. - Masaya Yasuda; Kazuhiro Yokoyama; Takeshi Shimoyama; Jun Kogure; Takeshi Koshiba (J. Math. Cryptol., 2014)

Secure Statistical Analysis Using RLWE-Based Homomorphic Encryption. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (ACISP, 2015)

Secure Data Devolution: Practical Re-encryption with Auxiliary Data in LWE-based Somewhat Homomorphic Encryption. - Masaya Yasuda; Takeshi Koshiba; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama (SCC@ASIACCS, 2015)

Privacy-Preserving Fuzzy Commitment for Biometrics via Layered Error-Correcting Codes. - Masaya Yasuda; Takeshi Shimoyama; Narishige Abe; Shigefumi Yamada; Takashi Shinzaki; Takeshi Koshiba (FPS, 2015)

New packing method in somewhat homomorphic encryption and its applications. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Kazuhiro Yokoyama; Takeshi Koshiba (Secur. Commun. Networks, 2015)

Computational hardness of IFP and ECDLP. - Masaya Yasuda; Takeshi Shimoyama; Jun Kogure; Tetsuya Izu (Appl. Algebra Eng. Commun. Comput., 2016)

Block Cipher Modes of Operation for Heterogeneous Format Preserving Encryption. - Toshiya Shimizu; Takeshi Shimoyama (ISPEC, 2017)

Recovering Attacks Against Linear Sketch in Fuzzy Signature Schemes of ACNS 2015 and 2016. - Masaya Yasuda; Takeshi Shimoyama; Masahiko Takenaka; Narishige Abe; Shigefumi Yamada; Junpei Yamaguchi (ISPEC, 2017)

Analysis of decreasing squared-sum of Gram-Schmidt lengths for short lattice vectors. - Masaya Yasuda; Kazuhiro Yokoyama; Takeshi Shimoyama; Jun Kogure; Takeshi Koshiba (J. Math. Cryptol., 2017)

A Novel Scheme of Schnorr Multi-signatures for Multiple Messages with Key Aggregation. - Rikuhiro Kojima; Dai Yamamoto; Takeshi Shimoyama; Kouichi Yasaki; Kazuaki Nimura (BWCCA, 2020)

A Setup-Free Threshold Encryption Scheme for the Bitcoin Protocol and Its Applications. - Goichiro Hanaoka; Yusuke Sakai 001; Toshiya Shimizu; Takeshi Shimoyama; SeongHan Shin (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020)

A New Schnorr Multi-Signatures to Support Both Multiple Messages Signing and Key Aggregation. - Rikuhiro Kojima; Dai Yamamoto; Takeshi Shimoyama; Kouichi Yasaki; Kazuaki Nimura (J. Inf. Process., 2021)