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.
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.
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.
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.
该群签名以及群公开密钥的长度都和群成员的个数无关，因此更适合群成员较多的大群。
This scheme is suitable for the large group that have more group members because the lengths of the group signature and of the group public key are all independent to the number of group memb...
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.
群盲签名方案兼具了群签名和盲签名的优点，在电子商务、网络投票等场合都起着重要作用。
As holding advantages of both group signatures and blind signatures, group blind signature has played an important role in electronic commerce, electronic vote etc.
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 th…
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.
为使群签名同时具有匿名性与可追踪性(发生争议时可打开)，群签名的执行效率往往比较低下。
For providing anonymity and traceability (which means signatures can be opened in dispute cases) at the same time, the efficiencies of group signature schemes are usually lower.
为使群签名同时具有匿名性与可追踪性（发生争议时可打开），群签名的执行效率往往比较低下。
Though providing both anonymity and traceability(which means signatures can be opened in dispute cases), most group signature schemes achieve these features at the cost of performing efficiency.
利用一个基于分层身份思想和双线性映射的群签名，提出了一个新的安全高效的密封式电子拍卖方案。
With the help of a group signature based on Hierarchical Identity-Based signature (HIBS) and bilinear map, a new secure and efficient sealed-bid electronic auction scheme was presented.
利用椭圆曲线上双线性对的群签名技术，提出一种新的基于标记思想的阻止勒索犯罪的公平电子货币方案。
A new fair electronic cash scheme based on the idea of marking is proposed to prevent blackmailing which is based on the group signature technology of bilinear pairings over elliptic curves.
文中提出了一个新的群签名方案，该方案的安全性基于离散对数困难问题，其运行效率比已有的同类方案高。
A new group signature scheme based on the discrete logarithm problem is presented. The scheme is more efficient than the previously known schemes with the same security properties.
文中提出了一个新的群签名方案，该方案的安全性基于离散对数困难问题，其运行效率比已有的同类方案高。
A new group signature scheme based on the discrete logarithm problem is presented. The scheme is more efficient than the previously known schemes with the same security properties.
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