On the Generalised Hidden Number Problem and Bit Security of XTR

  • Authors:
  • Igor Shparlinski

  • Affiliations:
  • -

  • Venue:
  • AAECC-14 Proceedings of the 14th International Symposium on Applied Algebra, Algebraic Algorithms and Error-Correcting Codes
  • Year:
  • 2001

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Abstract

We consider a certain generalisation of the hidden number problem which has recently been introduced by Boneh and Venkatesan. We apply our results to study the bit security of the XTR cryptosystem and obtain some analogues of the results which have been known for the bit security of the Diffie-Hellman scheme.