Perfectly Secure Message Transmission Revisited

  • Authors:
  • Yvo Desmedt;Yongge Wang

  • Affiliations:
  • -;-

  • Venue:
  • EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
  • Year:
  • 2002

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Abstract

Achieving secure communications in networks has been one of the most important problems in information technology. Dolev, Dwork, Waarts, and Yung have studied secure message transmission in one-way or two-way channels. They only consider the case when all channels are two-way or all channels are one-way. Goldreich, Goldwasser, and Linial, Franklin and Yung, Franklin and Wright, and Wang and Desmedt have studied secure communication and secure computation in multirecipient (multicast) models. In a "multicast channel" (such as Ethernet), one processor can send the same message - simultaneously and privately - to a fixed subset of processors. In this paper, we shall study necessary and sufficient conditions for achieving secure communications against active adversaries in mixed one-way and two-way channels. We also discuss multicast channels and neighbor network channels.