100+ Computer security lecture PowerPoint (PPT) Presentations, Computer security lecture PPTs

Computer security lecture - PowerPoint PPT Presentation

September 23, 2004

September 23, 2004. Introduction to Computer Security Lecture 4 SPM, Security Policies, Confidentiality and Integrity Policies. Schematic Protection Model. Key idea is to use the notion of a protection type Label that determines how control rights affect an entity Take-Grant:

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887 views • 59 slides

Buffer Overflows and Defenses

Buffer Overflows and Defenses. CS 419: Computer Security Lecture 10 and 11. Buffer Overflow. a very common attack mechanism from 1988 Morris Worm to Code Red, Slammer, Sasser and many others prevention techniques known still of major concern due to legacy of widely deployed buggy

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733 views • 53 slides

September 16, 2004

September 16, 2004. Introduction to Computer Security Lecture 3 Take Grant Model (Cont) HRU Schematic Protection Model. x. s. ?. ?. I 2. I 1. ?. y. I n. ?. Theorem: Can_share( ? , x , y , G 0 ) (for subjects).

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784 views • 50 slides

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Computer security lecture - PowerPoint PPT Presentation

September 23, 2004

Buffer Overflows and Defenses

September 16, 2004