Secure Electronic Messaging (1)

• Requirements

  • privacy, authentication, integrity, availability, virus checking, support for non-text messages, non-repudiation (proof of sending and receiving)

• Standards

  • SMTP - Simple Mail Transfer Protocol; POP3 - Post Office Protocol 3
  • IMAP4 - Internet Message Access Protocol 4
  • MIME, S/MIME - Secure/ Multipurpose Internet Mail Extension
  • PGP - Pretty Good Privacy; SSL - Secure Socket Layer
  • X.400 - OSI E-mail standard
  • X.509 v3 - Public key certificate standard

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