A key authentication scheme with non-repudiation

Authors:
Min-Shiang Hwang;Li-Hua Li;Cheng-Chi Lee
Affiliations:
National Chung Hsing University, Taiwan;Chaoyang University of Technology, Taichung County, Taiwan;National Chung Hsing University, Taiwan
Venue:
ACM SIGOPS Operating Systems Review
Year:
2004

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Abstract

In 1996, Horng and Yang proposed a key authentication scheme that requires no authorities. However, it is vulnerable to the guessing attack. An intruder can try out a password and forge the public key. To amend this problem, an improved authentication scheme intended to prevent the guessing attack and the forging problem was proposed by Zhan et al. in 1999. However, their scheme did not achieve non-repudiation of public key. In order to achieve non-repudiation of public key, two improvements of key authentication scheme for non-repudiation are discussed in this paper.