Butler Lampson


I gave a series of lectures on security at TCS Excellence in Computer Science Week 2005, at the Tata Research Development and Design Center in Pune, India.

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These lectures cover the basic principles of trust and security for distributed systems under the following headings: 

Introduction: what is security?

Principals, the “speaks for” relation, and chains of responsibility

Secure channels and encryption

Names and groups

Authenticating systems