Tuesday 24 October, 9:00-12:30
Tutorial 1: Introduction to Cryptography and Authentication Protocols
Jonathan Moffett, University of York (UK)

The explosive increase in Internet traffic, and its expansion to e-commerce, has brought a whole host of security concerns and their solutions. It is hard to get the threats and protection measures into perspective. How much should you be concerned whether you have got 40-bit or 128-bit encryption? What is the difference between Symmetric and Public-Key Encryption? What is the purpose of Public Key Infrastructure?

This tutorial is an introduction to the basics of Cryptography and Authentication Protocols for those with little previous experience of the area. It will cover: fundamentals of cryptography; symmetric encryption algorithms (including DES); public-key encryption algorithms (including RSA); applications of encryption; key distribution and public-key infrastructure; authentication protocols and their problems; practical consequences for internet security.

Dr. Jonathan Moffett is a Lecturer in the Computer Science Department at the University of York, England. He was a member of the Distributed Systems Engineering group at Imperial College, London from 1986-92. His previous experience has been as a systems consultant on large commercial systems, including acting as computer controls and security adviser at Esso Europe Inc, and as consultant to one of the London Clearing Banks, for whom he wrote their computer security standards.