Analysing Security Protocols with AVISPA

Usage of the Internet has increased rapidly over the past decade. Increased amount of network users has also brought along a need of network-based services that require security. Developing new security protocols is a difficult task and sometimes too difficult task for human mind. We need an efficient tools to help the development and verification of the protocols. In this paper we introduce the protocol analysis tool called AVISPA. The paper describes the architecture of the tool and syntax for protocol specification language called HLPSL. We give an example of how a real protocol can be specified with the HLPSL language and how the output of the AVISPA Tool is analysed.