Intrusion tolerant CA scheme with cheaters detection ability

Authors:
Liwu Zhang;Dengguo Feng
Affiliations:
State Key Laboratory of Information Security, (Institute of Software of Chinese Academy of Sciences), Beijing, P. R. China;State Key Laboratory of Information Security, (Institute of Software of Chinese Academy of Sciences), Beijing, P. R. China
Venue:
ISPA'05 Proceedings of the 2005 international conference on Parallel and Distributed Processing and Applications
Year:
2005

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Abstract

In this paper, we put forward a practical intrusion tolerant CA scheme with the ability of cheater detection. Compared to the scheme of ITTC’s project[1], the scheme has built-in ability of detecting cheaters, and has ability to generate signature without specifying one group of servers in the serial mode. We also present shares proactive refresh protocol to prevent key shares from gradually exposed or corrupted. Our scheme can be changed from (t,n) scheme to (t,n + 1) scheme.