Paper 2007/386 Original: eprint.iacr.org/2007/386 ↗

(Convertible) Undeniable Signatures without Random Oracles

Tsz Hon Yuen
Man Ho Au
Joseph K. Liu
Willy Susilo
Abstract

We propose a convertible undeniable signature scheme without random oracles. Our construction is based on Waters' and Kurosawa and Heng's schemes that were proposed in Eurocrypt 2005. The security of our scheme is based on the CDH and the decision linear assumption. Comparing only the part of undeniable signatures, our scheme uses more standard assumptions than the existing undeniable signatures without random oracles due to Laguillamie and Vergnaud.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2009-09-25: last updated
2007-10-04: published
Short URL
https://ia.cr/2007/386
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2007/386,
      author = {Tsz Hon Yuen and Man Ho Au and Joseph K.  Liu and Willy Susilo},
      title = {(Convertible) Undeniable Signatures without Random Oracles},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/386},
      year = {2007},
      url = {https://eprint.iacr.org/2007/386}
}
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