Trust Management in the World Wide Web

Yang-hua Chu

Trust Management in the World Wide Web

Thanks

Overview

Recap From Last Week’s Talk on SDSI

A Real World Scenario: Code Signing

Problems Not Addressed by Most PKIs

What is Trust Management

More Complex Issues

Defining Terms

Design Goal

REFEREE: Rule-controlled Environment for Evaluation of Rules and Everything Else

Primitive Data Types in REFEREE #1

Primitive Data Types in REFEREE #2

Bootstrapping REFEREE

REFEREE Invocation

Reference Policy Language Construct

Key Features in REFEREE

A Peek at a Sample Policy

Sample Query

Sample Query Continue

Advantage Using REFEREE Model

Conclusion: Now and Future