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Understanding Systems Assurance: A Holistic Approach to Security and Reliability

This introduction to Systems Assurance explores its meanings and implications across various contexts, including technology, policy, and user perspectives. We define what constitutes a system beyond just computer systems, incorporating communications, transportation, and utilities. The concept of assurance is broken down into critical elements such as availability, integrity, authentication, confidentiality, and non-repudiation. Recognizing that Systems Assurance means different things to different stakeholders, we emphasize the diverse views held by entities like the military, banks, and academic institutions.

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Understanding Systems Assurance: A Holistic Approach to Security and Reliability

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Presentation Transcript

  1. Introduction CIS583, CSE 583

  2. What is Systems Assurance? • First, what do we mean by systems? • What do we mean by assurance?

  3. What’s a System? • Holistic concept • We do not just mean computer systems • Communications, transportation, utilities, … • Not just about technology: • Includes the users • Policy (including management) • Public policy (what’s legal?)

  4. What’s Assurance? • NSA says: availability, integrity, authentication, confidentiality, and nonrepudiation. • Let’s break that down:

  5. Fundamental Concepts • Availability • There when you need it • Integrity • Still “pure” • Authentication • We know who each other are • Confidentiality • Secrets stay secret • Nonrepudiation • Can’t deny an action

  6. Assurance Means Different Things to Different People • US Military • Banks (large multinational vs. local) • IBM • The Federal Communications Commission • My home computer • Syracuse University No two of these users have the same view of Systems Assurance!

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