ULg Research Unit in Networking RUN

Specification and verification of a TTP protocol for the conditional access to services

G. Leduc1 , O. Bonaventure1, E. Koerner1, L. Léonard1, C. Pecheur1 and D. Zanetti1

1 Research unit in Networking, EECS department, University of Liège, Belgium



We use the formal language LOTOS to specify the Equicrypt protocol and verify its robustness to attacks by an intruder. We use the model-based CADP verification tools from the Eucalyptus toolbox to discover some successful attacks against this protocol.


formal verification, LOTOS, model-checking, security protocol

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