Constant-Round non-malleable commitments from sub-exponential one-way functions

  • Authors:
  • Rafael Pass;Hoeteck Wee

  • Affiliations:
  • Cornell University;Queens College, CUNY

  • Venue:
  • EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
  • Year:
  • 2010

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Abstract

We present a constant-round non-malleable commitment scheme based on the existence of sub-exponential one-way functions and using a black-box proof of security. As far as we know, this is the first construction of a constant-round non-malleable protocol based on only one-wayness, or to admit a black-box proof of security under any standard-type assumption.