Rosen 1.3 Propositional Functions Propositional functions (or predicates) are propositions that contain variables. Ex: Let P(x) denote x > 3 P(x) has.
Key Exchange Protocols J. Mitchell CS 259. Next few lectures uToday Key exchange protocols and properties uThursday Cathy Meadows: GDOI uNext Tues Contract-signing.
Key Management Protocols and Compositionality John Mitchell Stanford TECS Week2005.
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Copyright © 1995-2008 Clifford Neuman - UNIVERSITY OF SOUTHERN CALIFORNIA - INFORMATION SCIENCES INSTITUTE USC CSci530 Computer Security Systems Lecture.
Module 7 A famous story. Look at the picture and say what you think is strange.
Calculi for Access Control
Blind Vision Shai Avidan, Moshe Butman Yuval Schwartz.
AdCity Magazine January 2011
Internet Security CSCE 813 IPsec. CSCE 813 - Farkas2 Reading Today: – Oppliger: IPSec: Chapter 14 – Stalllings: Network Security Essentials, 3 rd edition,
CSCI 172/283 Fall 2010 Public Key Cryptography. New paradigm introduced by Diffie and Hellman The mailbox analogy: Bob has a locked mailbox Alice can.
Objectives Understand the challenge-response authentication protocol and its attacks Understand the basic mechanisms of trusted intermediaries for distributed.
