Ajantha herath

Associate professor, Computer information Systems
University of Dubuque

“HIGH PERFORMANCE CRYPTOGRAPHY IN
DISTRIBUTED SECURE COMMUNICATIONS"

Thursday, March 4, 2004
11:00 a.m. – 12:00 noon
Room 405, IS Building

Abstract: Secure communication among users or processes in distributed systems is a very high priority than ever before. Different actors in distributed systems have access to different functionality and data. Encryption, the basic building block of information assurance and communication security, is used to prevent unauthorized access. Distributed systems should provide mechanisms to enforce variety of different security policies. System design includes mapping of subsystems to hardware. Developing and implementing security mechanisms with high performance are not easy problems to solve.

In this talk, first I will explore how two fundamental processes of encryption are used to develop more sophisticated modern advanced encryption standard algorithms. Thereafter, I will analyze few techniques used to reveal encrypted data. To help understand the subject matter, I will present examples and simple approaches that extend easily to more complicated ones. Finally, I will introduce recent results related to mapping subsystems to hardware focusing on High Level Language to Hardware Transformation of encryption and decryption algorithms for high performance implementation.