Basic HTML version of Foils prepared July 6 99

Foil 29 Secure Electronic Messaging (5)

From Security Infrastructure fo Electronic Commerce and Internet CPS714 Computational Science Information Track -- June 2 and June 7 99. by Roman Markowski
1 S/MIME - Secure/Multipurpose Internet Mail Extension
  • Internet standard: RFC 2311, RFC 2312; developed by RSA in 1996; IETF is working on version 3
  • S/MIME allows users of Web messaging clients (Netscape Messenger) to send encrypted messages and authenticate received messages
  • asymmetric encryption: RSA
  • symmetric encryption: RC2, Triple DES
  • public key size : 1024 bits
  • uses X.509v3 certificates to authenticate owner of the public key
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