Public-key cryptosystems with very small key lengths

  • Authors:
  • Greg Harper;Alfred Menezes;Scott Vanstone

  • Affiliations:
  • Dept. of Combinatorics and Optimization, University of Waterloo, Waterloo, Ontario, Canada;Dept. of Combinatorics and Optimization, University of Waterloo, Waterloo, Ontario, Canada;Dept. of Combinatorics and Optimization, University of Waterloo, Waterloo, Ontario, Canada

  • Venue:
  • EUROCRYPT'92 Proceedings of the 11th annual international conference on Theory and application of cryptographic techniques
  • Year:
  • 1992

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Abstract

In some applications of public-key cryptography it is desirable, and perhaps even necessary, that the key size be as small as possible. Moreover, the cryptosystem just needs to be secure enough so that breaking it is not cost-effective. The purpose of this paper is to hivestigate the security and practicality of elliptic curve cryptosystems with small key sizes of about 100 bits.