Journal of Electronics (China)

, Volume 25, Issue 1, pp 108–114 | Cite as

Ring proxy signatures

Article
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Abstract

Proxy signatures have been used to enable the transfer of digital signing power within some context and ring signatures can be used to provide the anonymity of a signer. By combining the functionalities of proxy signatures and ring signatures, this paper introduces a new concept, named ring proxy signature, which is a proxy signature generated by an anonymous member from a set of potential signers. The paper also constructs the first concrete ring proxy signature scheme based on the provably secure Schnorr’s signatures and two ID-based ring proxy signature schemes. The security analysis is provided as well.

Key words

Proxy signature Ring signature Ring proxy signature ID-based cryptography Bilinear parings 

CLC index

TP309.2 
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Copyright information

© Science Press 2008

Authors and Affiliations

  • Wei Baodian 
    • 1
    • 3
  • Zhang Fangguo 
    • 1
    • 3
  • Chen Xiaofeng 
    • 2
    • 3
  1. 1.Department of Electronics and Communication EngineeringSun Yat-Sen UniversityGuangzhouChina
  2. 2.Department of Computer ScienceSun Yat-Sen UniversityGuangzhouChina
  3. 3.Guangdong Key Laboratory of Information Security TechnologyGuangzhouChina

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