Attribute-based concurrent signatures

BaoHong Li; Guoqing Xu; Yinliang Zhao

Paper 2017/196

Attribute-based concurrent signatures

BaoHong Li, Guoqing Xu, and Yinliang Zhao

Abstract

This paper introduces the notion of attribute-based concurrent signatures. This primitive can be considered as an interesting extension of concurrent signatures in the attribute-based setting. It allows two parties fairly exchange their signatures only if each of them has convinced the opposite party that he/she possesses certain attributes satisfying a given signing policy. Due to this new feature, this primitive can find useful applications in online contract signing, electronic transactions and so on. We formalize this notion and present a con-struction which is secure in the random oracle model under the Strong Dif-fie-Hellman assumption and the eXternal Diffie-Hellman assumption.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Keywords: fair exchange concurrent signatures.
Contact author(s): bhli @ mail xjtu edu cn
History: 2017-02-28: received
Short URL: https://ia.cr/2017/196
License: CC BY

BibTeX

@misc{cryptoeprint:2017/196,
      author = {BaoHong Li and Guoqing Xu and Yinliang Zhao},
      title = {Attribute-based concurrent signatures},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/196},
      year = {2017},
      url = {https://eprint.iacr.org/2017/196}
}