An improved e-mail security protocol

  • Authors:
  • B. Schneier;C. Hall

  • Affiliations:
  • -;-

  • Venue:
  • ACSAC '97 Proceedings of the 13th Annual Computer Security Applications Conference
  • Year:
  • 1997

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Abstract

Current e-mail security systems base their security on the secrecy of the long-term private key. If this private key is ever compromised, an attacker can decrypt any messages-past, present or future-encrypted with the corresponding public key. The system described in this paper uses short-term private-key/public-key key pairs to reduce the magnitude of this vulnerability.