Almost Independent and Weakly Biased Arrays: Efficient Constructions and Cryptologic Applications

  • Authors:
  • Jürgen Bierbrauer;Holger Schellwat

  • Affiliations:
  • -;-

  • Venue:
  • CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
  • Year:
  • 2000

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Abstract

The best known constructions for arrays with low bias are those from and the exponential sum method based on the Weil-Carlitz-Uchiyama bound. They all yield essentially the same parameters. We present new efficient coding-theoretic constructions, which allow far-reaching generalizations and improvements. The classical constructions can be described as making use of Reed-Solomon codes. Our recursive construction yields greatly improved parameters even when applied to Reed-Solomon codes. Use of algebraic-geometric codes leads to even better results, which are optimal in an asymptotic sense. The applications comprise universal hashing, authentication, resilient functions and pseudorandomness.