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具有多种特性的门限多代理多签名方案 被引量:6

Threshold Multi-proxy and Multi-signature Schemes with Various Characteristics
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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。 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 iuhomogeneous 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 uncler the discrete logarithm assumption and the random oracle model.
出处 《计算机工程》 CAS CSCD 北大核心 2009年第13期160-162,共3页 Computer Engineering
基金 国家自然科学基金资助项目(10571061)
关键词 门限多代理多签名 特权集 消息恢复 指定验证者 threshold multi-proxy and multi-signature privileged set message recovery designated verifier
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