Paper 2012/075 Original: eprint.iacr.org/2012/075 ↗

Efficient identity-based threshold decryption scheme from bilinear pairings

Wei Gao
Guilin Wang
Kefei Chen
Xueli Wang
Guoyan Zhang
Abstract

Taking advantage of a technique that allows to safely distribute a private key among decryption servers we introduce a new identity-based threshold scheme, proven secure in the random oracle model. This new paring-based scheme features a lot of improvements compared to other schemes that can be found in the literature. Among them the two most noticeable ones are, the efficiency, by reducing the number of pairing computations, and the ability for a user to generate and share a private key without requiring any access to a PKG.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2012-02-26: last updated
2012-02-23: published
Short URL
https://ia.cr/2012/075
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2012/075,
      author = {Wei Gao and Guilin Wang and Kefei Chen and Xueli Wang and Guoyan Zhang},
      title = {Efficient identity-based threshold decryption  scheme from bilinear pairings},
      howpublished = {Cryptology {ePrint} Archive, Paper 2012/075},
      year = {2012},
      url = {https://eprint.iacr.org/2012/075}
}
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