ISSN 0253-2778

CN 34-1054/N

Open AccessOpen Access JUSTC

Anonymous identity-based encryption scheme without random oracles

Cite this:
https://doi.org/10.3969/j.issn.0253-2778.2012.04.006
  • Received Date: 27 May 2011
  • Rev Recd Date: 14 October 2011
  • Publish Date: 30 April 2012
  • The anonymous identity-based encryption (IBE) schemes are currently only selective-ID secure without random oracles or provably secure under a complex assumption. An anonymous IBE scheme based on decisional bilinear Diffie-Hellman (BDH) assumption in a group of composite order was proposed, which is ANON-IND-ID-CPA secure without random oracles and only needs two bilinear pairing computations. This scheme is more secure and efficient than the existing ones.
    The anonymous identity-based encryption (IBE) schemes are currently only selective-ID secure without random oracles or provably secure under a complex assumption. An anonymous IBE scheme based on decisional bilinear Diffie-Hellman (BDH) assumption in a group of composite order was proposed, which is ANON-IND-ID-CPA secure without random oracles and only needs two bilinear pairing computations. This scheme is more secure and efficient than the existing ones.
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