Basic HTML version of Foils prepared Dec. 6 98

Foil 16 Network Security (3)

From Introduction to Network Management Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
There is no such thing as a 100% secure computer system. We can think of security as a triangle with "security", "performance" and "usability" at corners. We cannot be at all corners at the same time
Security specifications:
  • IP Sec - IP Security Protocol (IETF); IPSec addresses the issues of encryption and integrity
  • ITU X.509 - digital certificate (like identity card authorized by Certifite Authority (CA)). It is based on Public Key
  • DES - Data Encryption Standard - private key encryption scheme
  • PAP - Password Authentication Protocol
  • CHAP- Challenge Handshake Authentication Protocol
  • TACACS - authentication for dialing
  • RADIUS - Remote Authentication Dial-In User Service
  • Secure DNS - is designed to stop DNS spoofing
  • PGP / MIME - Pretty Good Privacy; PEM - Privacy Enhanced Mail

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