Unconditionally Secure Authentication Schemes and Practical and Theoretical Consequences

  • Authors:
  • Yvo Desmedt

  • Affiliations:
  • -

  • Venue:
  • CRYPTO '85 Advances in Cryptology
  • Year:
  • 1985

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Abstract

The Vernam scheme protects the privacy unconditionally, but is completely insecure to protect the authenticity of a message. Schemes will be discussed in this paper that protect the authenticity unconditionally. The definition of unconditional security is defined. Stream cipher authentication schemes are proposed. The consequences on information protection using RSA and DES are discussed.