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Information Theoretical Security and Secure Network Coding

Information Theoretical Security and Secure Network Coding. NCIS11 Ning Cai May 14, 2011 Xidian University. The Outline. Two Approaches to Security ; -computational security -information theoretical security

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Authentication Approaches over Internet

Authentication Approaches over Internet. Jia Li jl3272@columbia.edu. What is authentication? Authentication is a process by which the identity of a user accessing a network or other source of information is verified. Why do we need authentication?

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