A variant of Digital Signature Algorithm

  • Authors:
  • Dimitrios Poulakis

  • Affiliations:
  • Department of Mathematics, Aristotle University of Thessaloniki, Thessaloniki, Greece 54124

  • Venue:
  • Designs, Codes and Cryptography
  • Year:
  • 2009

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Abstract

In this paper we present a variant of the Digital Signature Algorithm based on a factorization problem and two discrete logarithm problems. We prove that our signature scheme is at least as secure as the original Digital Signature Algorithm and withstands all known attacks.