Verifiable Random Functions

  • Authors:
  • Silvio Micali;Salil Vadhan;Michael Rabin

  • Affiliations:
  • -;-;-

  • Venue:
  • FOCS '99 Proceedings of the 40th Annual Symposium on Foundations of Computer Science
  • Year:
  • 1999

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Abstract

We efficiently combine unpredictability and verifiability by extending the Goldreich-Goldwasser-Micali construction of pseudorandom functions fs from a secret seed s, so that knowledge of s not only enables one to evaluate fs at any point x, but also to provide an NP-proof that the value fs(x) is indeed correct without compromising the unpredictability of fs at any other point for which no such a proof was provided.