Security Analysis of Micali's Fair Contract Signing Protocol by Using Coloured Petri Nets

Authors:
Panupong Sornkhom;Yongyuth Permpoontanalarp
Affiliations:
-;-
Venue:
SNPD '08 Proceedings of the 2008 Ninth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Year:
2008

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Abstract

In this paper, we present a systematic method to analyze the security of Micali’s fair contract signing protocol by using Coloured Petri Nets (CPN). By using CPN, we found two new attacks in the protocol. Also, we show that Bao’s improved version of the protocol is secure against known message replay attacks on Micali’s protocol and our new attacks.