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Computer Security 1 [COMPGA01] Nicolas T. Courtois - University College London.

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Presentation on theme: "Computer Security 1 [COMPGA01] Nicolas T. Courtois - University College London."— Presentation transcript:

1 Computer Security 1 [COMPGA01] Nicolas T. Courtois - University College London

2 CompSec COMPGA01 Nicolas T. Courtois, January CompSec at UCL COMPGA01 Computer Security 1 Dr. Nicolas Courtois optional modules *COMPGA02 Computer Security 2 *COMPGZ03 Distributed Systems *COMPM028 Language Based Security *COMPGA14 InfoSec Management not covered: database sec critical infrastructures hiding, covert channels, flow control distributed systems

3 CompSec COMPGA01 Nicolas T. Courtois, January About GA01 30 hours.

4 CompSec COMPGA01 Nicolas T. Courtois, January CompSec1 [COMPGA01] Summary page:

5 CompSec COMPGA01 Nicolas T. Courtois, January Slides

6 CompSec COMPGA01 Nicolas T. Courtois, January Assessment 85 % = written exam (May exam session) –2.5 hours. –“ closed book ”, –NO calculators allowed, no mobile phones 15 % = Coursework =

7 CompSec COMPGA01 Nicolas T. Courtois, January Written Exam Content multiple choice questions + possibly also problems to solve, –either rather questions of understanding.. –or small “ theory ” exercises your key weapons are: –common sense –real world connection, practice vs. theory, things in perspective –basic knowledge: vocabulary, definitions, key concepts The exam CAN contain things about which YOU never heard. YES there will be things you did a lot of revisions on and not on the exam … Too bad.

8 CompSec COMPGA01 Nicolas T. Courtois, January Remark Part01 - all the “ PRINCIPLES ” we learn … Exam is not a philosophy essay. –Part 01 is NOT the most important part of this course. –Abstract notions and principles should appear in reference to the clear real world context. –Focus on fundamental technical knowledge and understanding of it.

9 CompSec COMPGA01 Nicolas T. Courtois, January References 1) *M. Bishop, Computer Security. –out of date, yet everything is there! 2)Computer Security: by Dieter Gollmann +Unix&Wndows alike +read in any order, +compact explanations -timid on recommendations 2)Ross Anderson Security Engineering [Cambridge] only some parts

10 CompSec COMPGA01 Nicolas T. Courtois, January Major Themes in CompSec 1 Engineering principles, vocabulary, fancy acronyms like C.I.A % Access control, theory and practice - 30 % Security helped by hardware - 10 % Malware attacks and defences - 25% Protocols and applied cryptography - 30 % Security given the social and industrial context - 10 % The sum is much more than 100%? Yes, because these major points have lots of intersection.

11 CompSec COMPGA01 Nicolas T. Courtois, January CompSec 1 – Learning Outcomes What’s There? Industrial Standards Life Facts What’s Wrong? Threats Vulnerabilities Fix It? Defensive Techniques Attack Methods Hacking Techniques..“ALL MAJOR AREAS”…

12 CompSec COMPGA01 Nicolas T. Courtois, January Content Intro 20s, Principles, part01 70s Sets, relations, Security policies, Ref. Monitor, part02a 60s DAC, OS Access Control, Unix part04(a) 60 s Unix/Windows in part04(b) +60 s, Decidability: part02b 20s, revisions on Lattices, 02a/c MAC, Confidentiality, BLP[Biba] part02c 70s, Hardware and Low Level CompSec part03 100s Integrity, business-oriented policies part02d 90s

13 CompSec COMPGA01 Nicolas T. Courtois, January Content Exploits against software and defenses part10, 60 s Software - Malware, Attacks – Defences, part s Basic Network Security and Firewalls 80s Crypto, Authentication, Passwords, part05, Crypto Protocols, Key Est. Kerberos, SSL, PGP part06


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