New Signcryption Schemes Based on KCDSA

  • Authors:
  • Dae Hyun Yum;Pil Joong Lee

  • Affiliations:
  • -;-

  • Venue:
  • ICISC '01 Proceedings of the 4th International Conference Seoul on Information Security and Cryptology
  • Year:
  • 2001

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Abstract

A signcryption scheme is a cryptographic primitive that performs signature and encryption simultaneously, at less cost than is required by the traditional signature-then-encryption approach. We propose new signcryption schemes based on KCDSA. These are the first signcryption schemes that are based on a standardized signature scheme. We expect that these schemes will soon be applied to established KCDSA systems. We also propose a new signcryption scheme for multiple recipients which requires very small communication overhead.