群签名是一种重要的签名。
该文解决了群签名中成员删除问题。
The paper resolves the problem of member deletion in group signatures.
提出了一个动态门限群签名方案。
A dynamic threshold group signature scheme is proposed in this paper.
基于双线性对的群签名技术可用于构造电子货币。
Group signature technology from bilinear pairings can be applied in constructing electronic cash.
对群签名的设计与分析始终是密码学领域的一大热点。
Design and cryptanalysis on group signature is always the hotspot in the field of cryptography.
接着提出了一个基于身份的可证明安全的群签名方案。
Then, we propose a provably secure and ID-Based group signature scheme.
本文对群签名体制及其在电子商务中的应用进行了研究。
This paper presented some research results in group signature schemes and their applications in e-commerce.
基于强rsa假设，本文提出了一种高效的群签名方案。
We propose a new efficient group signature scheme based on Strong RSA assumption.
构造了群签名中高效安全的群成员删除问题的解决方案。
Construct an efficient and secure solution scheme of member deletion problem in group signature.
因此设计安全、高效、灵活的群签名方案具有重要的现实意义。
So it is very important to design secure, efficient and flexible group signature schemes.
在ACJT群签名方案的基础上，提出一个新的成员撤销方案。
A new membership revocation method based on the ACJT group scheme was provided.
群签名允许群成员以匿名的方式代表整个群体对消息进行签名。
Group signature schemes allow a group member to anonymously sign on group's behalf.
对安全群签名体制的理论模型，安全性需求进行了深入的研究。
A comprehensive research has made in the theoretical model and the security requirements for security group signature scheme.
利用群签名体制给出一个可撤消投标者的安全的网上招投标方案。
This paper utilizes a group signature scheme to propose a secure scheme of bidding and tendering on Internet with revocation of bidder.
指出一种动态门限群签名方案有冗余，提出了针对该签名三种攻击。
We point out the redundancy of a dynamic threshold group signature scheme and demonstrate three attacks on it.
同时，利用数论中的有关知识，可以保证授权群签名的“匿名”性．。
Simultaneously, using the knowledge of number theory, it can guarantee the anonymity of the authorized group signature.
然而目前已提出的大多数群签名方案的安全性、效率或灵活性仍不够理想。
However, the security, efficiency or flexibility of most group signature schemes proposed at present, are not very ideal.
分析了这些方案的共性及受攻击原理，最后给出了一个安全的群签名方案。
Then, commonness of these schemes is analysed, an improved coalition resistant group signature scheme is put forward.
门限群签名是一类重要的数字签名，但现有的门限群签名方案几乎都有缺点。
Threshold group signature is an important kind of signatures, but all of the existing threshold group schemes have weaknesses.
本论文提出了一种基于XTR公钥体制的盲群签名方案并分析了其安全性和效率。
This paper presents a blind group signature scheme based on XTR public key system, and analyzes its security and efficiency.
该方案基于CDHP的难解性和DDHP的可计算性，它满足群签名的基本特性。
This scheme is base on difficulty of CDHP and calculability of DDHP, and it is provided with the main properties of group signature.
给出了动态群签名的正式定义，并讨论了它需要满足的安全性要求和其有效性的评价准则。
A formal concept of dynamic group signature is given. Then we discuss the requirements of security and the principles of estimating efficiency.
考虑到RSA是应用最广泛的公钥密码体制之一，首次基于RSA设计出一种群签名方案。
Considering RSA is one of the most popular public key cryptogram algirithms, a new group signature scheme completely based on RSA is proposed.
盲群签名方案是具有盲签名特点的群签名方案，在电子商务和电子政务中都有重要的应用。
Blind group signature scheme is group signature scheme with the characteristic of blind signature, which is widely applied in electronic commerce and electronic government.
提出的方案能有效抵制联合攻击，打开群签名的效率与群规模无关，因此非常适合于大群体。
The proposed scheme can effectively resist coalition attacks, and the efficiency is also independent with the group size, which results that the scheme is fit for large groups.
该文通过在一般群签名上增加一个负责授权的权限管理员和一个授权过程来达到授权群签名。
The authors add a new party, the right manager, and a new procedure, AUTHORIZE procedure to the standard group signatures to achieve the authorized group signatures.
该文认为该方案是全局可伪造的，群管理员可以对任何消息假冒任何成员生成有效的群签名。
This paper shows that Chen - Zhu's scheme is universally forgeable, that is, the group authority can forge a valid group signature on an arbitrary message, which stands in any group member.
利用群签名协议和时限承诺协议，本文给出了一种新的基于匿名通讯信道的安全电子投票方案。
A secure electronic voting scheme based on anonymous communication channel is proposed by using group signature protocol and timed commitment protocol.
论文借助群签名的思想，实现了电子现金的匿名性和无关联性，有效地保护了用户的私有信息。
In this paper, we propose a new efficient offline electronic cash scheme depend on the idea of group signature.
论文借助群签名的思想，实现了电子现金的匿名性和无关联性，有效地保护了用户的私有信息。
In this paper, we propose a new efficient offline electronic cash scheme depend on the idea of group signature.
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