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Comprehensive Information Security Overview for System Protection

Explore the essential areas of information protection, including encryption, access control, intrusion detection, and more. Understand Public Key Infrastructure requirements and dimensions of Information Architecture for robust data security.

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Comprehensive Information Security Overview for System Protection

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Presentation Transcript

  1. Security Overview • System protection requirements areas • Types of information protection • Information Architecture dimensions • Public Key Infrastructure (PKI)

  2. Information Protection Requirements • Confidentiality • Protect from unauthorized disclosure • Integrity • Protect from unauthorized modification • Availability • Reliable/timely access to required resources • Authenticity • Ability to determine authorized source • Non-repudiation • Non-forgeable proof of data originator’s identity and data receipt

  3. Types of Information Protection • Encryption • Access control • User identification and authentication • Malicious content detection (viruses) • Audits, including real-time intrusion-detection • Physical Security

  4. Information Architecture Dimensions • Information System • Unauthorized intrusion • Denial of service • Information Domain • Users must have freedom of movement within their authorized spheres • Information Content • In-transit • At rest

  5. PKIPublic Key Infrastructure • Generation of digital certificates • Electronic proof of identity • Issuance of Certificate Revocation Lists (CRLs) • Directories that serve certificates and CRLs

  6. PKI Terms • Certificate Authority (CA): Trusted agent that signs and issues digital certificate • Sets rules for use, • Publishes CRLs, • Posts to directory server • Registration Authority (RA): Verifies person’s identity, passes on to CA

  7. Defense Messaging System • PKI by itself is considered medium grade security assurance • DMS involves PKI with modifications and additions • DMS is considered “high grade” assurance • Includes detailed policies and custom software • http://www.disa.mil/D2/dms/

  8. Further reading • DON CIO Information Technology Standards Guidance (1999)– Chapter 3 • http://www.doncio.navy.mil/training/ools/itsg/chapter3.html • DoD Computer Emergency Response Team (CERT) • http://199.211.123.12/

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