School of Computer Science and Engineering, University of Electronic Science and Technology of China State Key Laboratory of Information Security, Graduate School of Chinese Academy of Sciences Faculty of Mathematics, Kyushu University
Jiang DENG
School of Computer Science and Engineering, University of Electronic Science and Technology of China
Authenticated encryption schemes are very useful for private and authenticated communication. In 2010, Rasslan and Youssef showed that the Hwang et al.'s authenticated encryption scheme is not secure by presenting a message forgery attack. However, Rasslan and Youssef did not give how to solve the security issue. In this letter, we give an improvement of the Hwang et al.'s scheme. The improved scheme not only solves the security issue of the original scheme, but also maintains its efficiency.
