Universally Anonymous IBE Based on the Quadratic Residuosity Assumption

  • Authors:
  • Giuseppe Ateniese;Paolo Gasti

  • Affiliations:
  • The Johns Hopkins University,;University of Genova,

  • Venue:
  • CT-RSA '09 Proceedings of the The Cryptographers' Track at the RSA Conference 2009 on Topics in Cryptology
  • Year:
  • 2009

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Abstract

We introduce the first universally anonymous, thus key-private, IBE whose security is based on the standard quadratic residuosity assumption. Our scheme is a variant of Cocks IBE (which is not anonymous) and is efficient and highly parallelizable.