Paper 2010/065

An Anonymous ID-based Encryption Revisited

Zhengjun Cao

Abstract

In 2006, Boyen and Waters proposed an anonymous ID-based encryption. It is impressive that in the scheme the system secret key is a tuple of five numbers. The user's secret key is also a tuple of five elements. The authors did not explain why it should introduce so many parameters. In this paper, we simulate a general attempt to attack the scheme. It shows us which parameters are essential to the scheme and which parameters can be reasonably discarded. Based on the analysis we present a simplified version and an efficient version of the Boyen-Waters scheme. The analyzing technique developed in this paper is helpful to better other cryptographic protocols.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
Anonymous ID-based encryptionSmooth Transition
Contact author(s)
zhencao @ ulb ac be
History
2010-02-08: received
Short URL
https://ia.cr/2010/065
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2010/065,
      author = {Zhengjun Cao},
      title = {An Anonymous ID-based Encryption Revisited},
      howpublished = {Cryptology ePrint Archive, Paper 2010/065},
      year = {2010},
      note = {\url{https://eprint.iacr.org/2010/065}},
      url = {https://eprint.iacr.org/2010/065}
}
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