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

DPA Countermeasures by Improving the Window Method. - Kouichi Itoh; Jun Yajima; Masahiko Takenaka; Naoya Torii (CHES, 2002)

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

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)

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)

A Very Compact Hardware Implementation of the MISTY1 Block Cipher. - Dai Yamamoto; Jun Yajima; Kouichi Itoh (CHES, 2008)

Collision-Based Power Attack for RSA with Small Public Exponent. - Kouichi Itoh; Dai Yamamoto; Jun Yajima; Wakaha Ogata (IEICE Trans. Inf. Syst., 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)

A Very Compact Hardware Implementation of the KASUMI Block Cipher. - Dai Yamamoto; Kouichi Itoh; Jun Yajima (WISTP, 2010)

Compact Architecture for ASIC Implementation of the MISTY1 Block Cipher. - Dai Yamamoto; Jun Yajima; Kouichi Itoh (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Compact Architecture for ASIC and FPGA Implementation of the KASUMI Block Cipher. - Dai Yamamoto; Kouichi Itoh; Jun Yajima (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

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

Integrity Assurance for Real-Time Video Recording. - Tetsuya Izu; Masahiko Takenaka; Jun Yajima; Takashi Yoshioka (IMIS, 2012)

Data Relation Analysis Focusing on Plural Data Transition for Detecting Attacks on Vehicular Network. - Jun Yajima; Takayuki Hasebe; Takao Okubo (NBiS, 2019)

Anomaly Detection Method "Cumulative Sum Detection" for In-Vehicle Networks. - Jun Yajima; Yasuhiko Abe; Takayuki Hasebe; Takao Okubo (J. Inf. Process., 2020)

First to Possess His Statistics: Data-Free Model Extraction Attack on Tabular Data. - Masataka Tasumi; Kazuki Iwahana; Naoto Yanai; Katsunari Shishido; Toshiya Shimizu; Yuji Higuchi; Ikuya Morikawa; Jun Yajima (CoRR, 2021)

A new approach for machine learning security risk assessment: work in progress. - Jun Yajima; Maki Inui; Takanori Oikawa; Fumiyoshi Kasahara; Ikuya Morikawa; Nobukazu Yoshioka (CAIN, 2022)

ASRA-Q: AI Security Risk Assessment by Selective Questions. - Jun Yajima; Maki Inui; Takanori Oikawa; Fumiyoshi Kasahara; Kentaro Tsuji; Ikuya Morikawa; Nobukazu Yoshioka (J. Inf. Process., 2023)

Taxonomy of Generative AI Applications for Risk Assessment. - Hiroshi Tanaka; Masaru Ide; Jun Yajima; Sachiko Onodera; Kazuki Munakata; Nobukazu Yoshioka (CAIN, 2024)

Toward a Trustworthy Artificial Intelligence System Considering Security, Ethics, and Quality. - Jun Yajima; Satoko Shiga; Kyoko Ohashi; Masaru Ide; Hiroshi Tanaka; Sachiko Onodera (PRDC, 2024)