This paper applies the theory of Communicating Sequential Processes (CSP) to the modelling and analysis of a non-repudiation protocol. Non-repudiation protocols di er from authent...
Abstract. A multi-party fair exchange protocol is a cryptographic protocol allowing several parties to exchange commodities in such a way that everyone gives an item away if and on...
We formally specify a payment protocol described in [Vogt et al., 2001]. This protocol is intended for fair exchange of time-sensitive data. Here the µCRL language is used to form...
Recently, Nenadi´c et al. (2004) proposed the RSA-CEGD protocol for certified delivery of e-goods. This is a relatively complex scheme based on verifiable and recoverable encryp...
We analyze the multi-party contract-signing protocols of Garay and MacKenzie (GM) and of Baum and Waidner (BW). We use a finite-state tool, MOCHA, which allows specification of pr...