Improvement of One Adaptive Oblivious Transfer Scheme

Zhengjun Cao; Lihua Liu

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Paper 2013/517

Improvement of One Adaptive Oblivious Transfer Scheme

Zhengjun Cao and Lihua Liu

Abstract

In 2011, the authors [8] presented an adaptive oblivious transfer (OT) scheme based on Decisional 3-Party Diffie-Hellman (3DDH) assumption. The encryption used in the scheme is a combination of the Boneh-Boyen IBE scheme and a variation of the Hohenberger-Waters signature. The scheme is somewhat inefficient since it combines the two underlying schemes in a simple way. In this paper, we present an improvement of the OT scheme and show its security under 3DDH assumption. The proposed skills are helpful for designing and analyzing other cryptographic schemes.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Preprint. MINOR revision.
Keywords: adaptive oblivious transfer 3-Party Diffie-Hellman assumption redundant system parameters.
Contact author(s): liulh @ shmtu edu cn
History: 2013-08-21: received
Short URL: https://ia.cr/2013/517
License: CC BY

BibTeX

@misc{cryptoeprint:2013/517,
      author = {Zhengjun Cao and Lihua Liu},
      title = {Improvement of One Adaptive Oblivious Transfer Scheme},
      howpublished = {Cryptology ePrint Archive, Paper 2013/517},
      year = {2013},
      note = {\url{https://eprint.iacr.org/2013/517}},
      url = {https://eprint.iacr.org/2013/517}
}