100+ Old session key PowerPoint (PPT) Presentations, Old session key PPTs

Old session key - PowerPoint PPT Presentation

Michael Huth M.Huth@doc.ic.ac.uk www.doc.ic.ac.uk/~mrh/430/

Mutual Authentication. Michael Huth M.Huth@doc.ic.ac.uk www.doc.ic.ac.uk/~mrh/430/. AUTHENTICATION = Identification : A claims to have a certain identity + Verification: claim checked by B

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465 views • 27 slides

Network Security: Classic protocols and flaws , Kerberos

Network Security: Classic protocols and flaws , Kerberos. Tuomas Aura T-110.5240 Network security Aalto University, Nov-Dec 2011. Outline. Classic key-exchange protocols and flaws Kerberos authentication Kerberos in Windows domains. Classic key-exchange protocols and flaws.

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407 views • 26 slides

Summary From the Last Lecture

Summary From the Last Lecture. Public key (asymmetric) cryptography Modular exponentiation for encryption/decryption Efficient algorithms for this Attacker needs to factor large numbers to extract key Must use brute-force One-way hash functions Collision-free, collision-resistant MD5, SHA

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272 views • 19 slides

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Old session key - PowerPoint PPT Presentation

Michael Huth M.Huth@doc.ic.ac.uk www.doc.ic.ac.uk/~mrh/430/

Network Security: Classic protocols and flaws , Kerberos

Summary From the Last Lecture