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chapter_01 - CSE 425 Introduction to Computer Security...

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Unformatted text preview: CSE 425, Introduction to Computer Security Chapter 1. What is Security Engineering? © 2008 by Wayne R. Dyksen. All Rights Reserved. 1-1 Michigan State University Department of Computer Science and Engineering Security Engineering Chapter 1. What is Security Engineering? by Ross Anderson Professor Wayne Dyksen Department of Computer Science and Engineering Michigan State University Spring 2008 CSE 425, Introduction to Computer Security 1 - 2 1. What is Security Engineering? • “Security engineering is about building systems to remain dependable in the face of malice, error, or mischance.” • “Software engineering is about ensuring that certain things don’t happen.” • “Security engineering is about ensuring that certain things can’t happen.” 1 - 3 Cross-Disciplinary Expertise • Cryptology • Computer Security • Formal Methods • Hardware Design (Tamper-Resistance) • Applied Psychology • Accounting Processes • Audit Processes • Law • Criminal Justice • Etc… 1 - 4 1.1 Example 1: A Bank • Physical Security (Partially implemented by Computer Systems) • Bookkeeping System • Private Networks – EFT’s Between Banks – Private Networks • Telephone Network – ATM’s – Point-of-Sale Systems • (Public) Internet – EFT’s – Purchasing Changing Environment 1 - 5 1.2 Example 2: An Air Force Base1....
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