1 / 47

ISA 662 Information System Security

2. Overview. Review and backgroundReview - latticesMilitary systems and Denning's AxiomsBell-LaPadula (BLP) PolicyStep 1

phil
Download Presentation

ISA 662 Information System Security

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. 1 ISA 662 Information System Security Confidentiality Policies Chapter 5

    2. 2 Overview Review and background Review - lattices Military systems and Denning’s Axioms Bell-LaPadula (BLP) Policy Step 1 – clearance/classification Step 2 – categories Example System – DG/UX Tranquility Controversy at a glance

    3. 3 POsets Definition: A Poset (short hand for Partially Ordered Set) is a pair (A,<) where A is a set < is a partial order. That is < is reflexive: x<x for xeA < is transitive: x<y and y<z ?x<z for all x,y,zeA < is anti-symmetric: x<y and y<x ?x=y for all x,yeA Example: A B C D E < is a total order iff x<y ?x,yeA

More Related