'Access control matrix' diaporamas de présentation

Chapter 8 Authorization

Chapter 8 Authorization. Access control matrix Multilevel Security Multilateral security Covert channel Inference control CAPTCHA Firewalls IDS. Authentication vs Authorization. Authentication ? Who goes there? Restrictions on who (or what) can access system

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Security

Security. Chapter 8. Types of Threats. Interception Interruption Modification Fabrication. Security Mechanisms. Encryption Authentication Authorization Auditing. Example: Globus Security Architecture. Diagram of Globus security architecture. Focus of Control.

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Unit 10 Security and Integrity

Unit 10 Security and Integrity. Contents. 10.1 Introduction 10.2 Security 10.3 Integrity 10.4 Security and Integrity in INGRES 10.5 Security in Statistical Databases 10.6 Data Encryption. 10.1 Introduction. Security and Integrity. Objective

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Lecture 18 Overview

Lecture 18 Overview. Access Control. Set of protected objects: O e.g., files or database records Set of subjects: S e.g., humans, processes acting on behalf of humans or group of humans/processes Set of rights: R e.g., {read, write, execute, own} Domain

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Access Control

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Computer Science 653 Lecture 8 --- Authorization

Computer Science 653 Lecture 8 --- Authorization. Professor Wayne Patterson Howard University Fall 2009. Authorization. Authentication vs Authorization. Authentication ? Who goes there? Restrictions on who (or what) can access system Authorization ? Are you allowed to do that?

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Lecture 2: Access Control

CS 591: Introduction to Computer Security. Lecture 2: Access Control. James Hook. Objectives. Introduce the mechanism of Access Control Relate mechanism to Confidentiality, Integrity and Availability Introduce the Access Control Matrix Model and Protection State Transitions. Alice and Bob.

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Information Systems Security

Information Systems Security. Security Architecture Domain #5. Hardware Components. CPU Primary Storage Control Unit Coordinates activities during instruction execution Does not process data Arithmetic Logic Unit (ALU) Perform mathematical functions on data. Memory Types.

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Chao-Hsien Chu, Ph.D. College of Information Sciences and Technology

Access Control: Part I. Chao-Hsien Chu, Ph.D. College of Information Sciences and Technology The Pennsylvania State University University Park, PA 16802 chu@ist.psu.edu. Theory ? Practice. Learning by Doing. IST 515. Human Body Analogue. Security Planning Security Policy

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Lecture 8 Access Control ( cont)

Lecture 8 Access Control ( cont). modified from slides of Lawrie Brown. Mandatory Access Control (MAC). Top Secret. Labeling Mechanism is used. Prevent any illegal flow of information through the enforcement of multilevel security. Secret. Military Security. Confidential.

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Summary From the Last Lecture

Summary From the Last Lecture. Authentication Something you know (password) Something you have (smartcard) Something about you (iris scan) Password authentication To protect from server compromise, store one-way hash at the server To protect from dictionary attack use random, long salt

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Information Security: Access Control Matrix

Information Security: Access Control Matrix. Dr. Shahriar Bijani Shahed University. Slide References. Matt Bishop, Computer Security: Art and Science , the author homepage, 2002-2004. Chris Clifton, CS 526: Information Security course, Purdue university , 2010. .

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Database Security

Database Security. Breaches of Security. Secrecy Theft and fraud Loss of confidentiality Loss of privacy Loss of integrity Loss of availability. Levels of Security Measures. Database system Operating system Network Physical Human. Countermeasures. Access control Discretionary

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Introduction to Computer Security Slide Set 1

CS498IA Spring 2007 Nikita Borisov. Introduction to Computer Security Slide Set 1. Based on slides provided by Matt Bishop for use with Computer Security: Art and Science. Outline. Administrative Issues Class Overview Information Assurance Overview Components of computer security

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CSCE 815 Network Security Lecture 23

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CMSC 414 Computer (and Network) Security Lecture 13

CMSC 414 Computer (and Network) Security Lecture 13. Jonathan Katz. Midterm?. Will be held Oct 21, in class Will cover everything up to and including the preceding lecture (Oct 16) Includes all reading posted on the class syllabus!. Access control lists (ACLs).

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Computer Security Foundational Results

Computer Security Foundational Results. THE GENERAL QUESTION. What does secure mean? How can one determine when a computer system is secure? Which policies are secure? What does secure mean?. Reminder. In our model a computer system is represented by a family of

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