Security Group Seminar, 8th October 1996

[ Changed 25th January 1997 ]

Speaker:

Andrew D. Gordon, University of Cambridge Computer Laboratory

Date:

Tuesday 8th October

Place:

Room TP4, Computer Laboratory

Title:

A CALCULUS FOR CRYPTOGRAPHIC PROTOCOLS: THE SPI CALCULUS

We introduce the spi calculus, an extension of the pi calculus designed for the description and analysis of cryptographic protocols. We show how to use the spi calculus, particularly for studying authentication protocols. The pi calculus (without extension) suffices for some abstract protocols; the spi calculus enables us to consider cryptographic issues in more detail. We represent protocols as processes in the spi calculus and state their security properties in terms of coarse-grained notions of protocol equivalence.

This is joint work with Martin Abadi.