| 基于DSA变形的有向门限群签名方案 |
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| 引用本文： | 谢冬,李佳佳,沈忠华.基于DSA变形的有向门限群签名方案[J].杭州师范大学学报(自然科学版),2012(5):443-446,463. |
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| 作者姓名： | 谢冬 李佳佳 沈忠华 |
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| 作者单位： | 杭州师范大学理学院 |
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| 摘 要： | 为了保护接收者的隐私,有向签名方案要求签名的验证必须得到接收者或签名者的合作.基于门限群签名秘密共享的思想以及离散对数的难解性,设计了一种新的有向门限群签名方案.分析表明,该方案具有安全性,与其他已存在的有向门限群签名方案相比,还具有一定的稳定性.
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| 关 键 词： | 门限群签名 有向门限群签名 秘密共享 离散对数 |
A Directed Threshold Group Signature Scheme Based on DSA Deformation |
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| Authors: | XIE Dong LI Jia-jia SHEN Zhong-hua |
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| Institution: | (College of science,Hangzhou Normal University,Hangzhou 310036,China) |
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| Abstract: | In order to protect the privacy of the signature receiver,directed signature scheme demands that the signature can be verified only with the cooperation of the signature receiver or the signer.Based on the secret sharing scheme of thresshold group signature and the intractability of discrete logarithm,a new directed threshold group signature scheme was proposed.The analysis shows that this scheme is secure.Comparing to other existing directed threshold group schemes,it has certain stability. |
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| Keywords: | threshold group signature directed threshold group signature secret sharing discrete logarithm |
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