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计算机工程 ›› 2009, Vol. 35 ›› Issue (13): 160-162. doi: 10.3969/j.issn.1000-3428.2009.13.055

• 安全技术 • 上一篇    下一篇

具有多种特性的门限多代理多签名方案

杨长海1,2,唐西林2   

  1. (1. 南昌陆军学院科文教研室,南昌 330103;2. 华南理工大学理学院,广州 510640)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-05 发布日期:2009-07-05

Threshold Multi-proxy and Multi-signature Schemes with Various Characteristics

YANG Chang-hai1,2, TANG Xi-lin2   

  1. (1. Science and Arts Staff Room, Nanchang Military Academy, Nanchang 330103; 2. College of Science, South China University of Technology, Guangzhou 510640)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-05 Published:2009-07-05

摘要: 为了提高多代理多签名的灵活性和实用性,在Schnorr签名的基础上,提出2个具有消息恢复特性的门限多代理多签名新方案,其中的不同类成员具有不等权限,只有指定验证者才能恢复消息并验证签名。分析结果表明,在离散对数假设和随机预言机模型下,该方案是安全的。

关键词: 门限多代理多签名, 特权集, 消息恢复, 指定验证者

Abstract: In order to improve the flexibility and practicality of multi-proxy and multi-signature, this paper proposes two new threshold multi-proxy and multi-signature schemes with property of message recovery based on Schnorr signature. The inhomogeneous members have unequal power, and only the designated verifier can recover the message and verify the signature. Analysis results show that the new schemes are secure under the discrete logarithm assumption and the random oracle model.

Key words: threshold multi-proxy and multi-signature, privileged set, message recovery, designated verifier

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