Abstract
We use a PVS embedding of the stable failures model of CSP to verify non-repudiation protocols, allowing us to prove the correctness of properties that are difficult to analyze in full generality with a model checker. The PVS formalization comprises a semantic embedding of CSP and a collection of theorems and proof rules for reasoning about non-repudiation properties. The well-known Zhou-Gollmann protocol is analyzed within this framework. © Springer-Verlag Berlin Heidelberg 2007.