Formal methods for cryptographic protocol analysis: emerging issues and trends

The history of the application of formal methods to cryptographic protocol analysis spans over 20 years and has been showing signs of new maturity and consolidation. Not only have a number of specialized tools been developed, and general-purpose ones been adapted, but people have begun applying these tools to realistic protocols, in many cases supplying feedback to designers that can be used to improve the protocol´s security. In this paper, we describe some of the ongoing work in this area, as well as describe some of the new challenges and the ways in which they are being met.