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12th EAI International Conference on Security and Privacy in Communication Networks

October 10–12, 2016 | Guangzhou, People's Republic of China



Professor Kouichi Sakurai

Graduate School of Information Science and Electrical Engineering, Kyushu University, Japan.

Institute of Systems, Information Technologies and Nanotechnologies, Japan (ISIT)



Anti-forensic aspects of biometirics towards Receipt-freeness  and Coercion-Resistance in authentication protocols



Currently, cancelable biometrics, asymmetric biometric authentication, and some related methods are proposed as remote biometrics. These proposals are discussed in the viewpoint of privacy protection. Namely, that are regarded as a forensic approach which means collecting evidence for some person’s authentication. 

However, there are a few research on anti-forensic approach which includes remaining no data in authentication systems. Therefore, we define “receipt-freeness” of biometric authentication protocol, which means no evidence left, as a first step. We analyse some remote biometric authentication protocols about “receipt-freeness.”

This talk also consider the property and recent techniques for Coercion-Resistance in biometric authentication protocols, which have been investigated in electronic voting schemes.



Kouichi Sakurai received the B.S. degree in mathematics from the Faculty of Science, Kyushu University in 1986. He received the M.S. degree in applied science in 1988, and the Doctorate in engineering in 1993 from the Faculty of Engineering, Kyushu University. He was engaged in research and development on cryptography and information security at the Computer and Information Systems Laboratory at Mitsubishi Electric Corporation from 1988 to 1994. From 1994, he worked for the Dept. of Computer Science of Kyushu University in the capacity of associate professor, and became a full professor there in 2002. He is concurrently working also with the Institute of Systems & Information Technologies and Nanotechnologies, as the chief of Information Security laboratory, for promoting research co-oporations among the industry, university and government under the theme "Enhancing IT-security in social systems". He has been successful in generating such co-operation between Japan, China and Korea for security technologies as the leader of a Cooperative International Research Project supported by the National Institute of Information and Communications Technology (NICT) during 2005-2006. Moreover, in March 2006, he established research co-oporations under a Memorandum of Understanding in the field of information security with Professor Bimal Kumar Roy, the first time Japan has partnered with The Cryptology Research Society of India (CRSI). Professor Sakurai has published more than 250 academic papers around cryptography and information security (See:;