Jun Furukawa, Akihiro Sakai, Takashi Nishide, Yoshiaki Hori, Kouichi Sakurai, "Design and Implementation of a Forced Encryption Kernel Module", 5th International Workshop on Advances in Information Security (WAIS), Seoul, Korea, June 30--July 2, 2011, pp.663--667, 2011, doi:10.1109/IMIS.2011.68.
Jingyu Hua, Kouichi Sakurai, "A SMS-Based Mobile Botnet Using Flooding Algorithm", Proceeding of the 5th Workshop in Information Security and Privacy (WISTP11), Springer LNCS 6633, pp. 264-279, Greece, June, 2011
Rimba Whidiana, Aulia Fajar, Fazmah Arif Yulianto, Kouichi Sakurai, "An Efficient Key Generation Method In Audio Zero-Watermarking", The Seventh International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP-2011), October 14-16, 2010, Dalian, China
Amril Syalim, Takashi Nishide, Kouichi Sakurai, "Realizing Proxy Re-encryption in the Symmetric World", The International Conference on Informatics Engineering & Information Science (ICIEIS), Malaysia, Nov.14--16, CCIS 251, pp.259--274, Springer-Verlag, 2011.