Besides having the basic properties of the proxy signature, the new scheme prevents proxy misuse, original signer's forgery and public key substitution attack.
此外，该方案不仅满足代理签名的基本性质，还避免了代理权滥用、原始签名人伪造和公钥替换攻击。
Analysis shows that the proposed scheme satisfies all security properties of the strong proxy signature scheme and does not need a secure channel.
分析表明所提方案能够满足强代理签名方案的安全需求，同时不需要使用安全信道。
So it is of great significance to design secure, efficient and feasible proxy signature schemes.
因此设计安全、高效、可行的代理数字签名方案具有重要的现实意义。
In addition, the proposed scheme satisfies all properties of strong proxy signature and doesn't need to use secure channel between the original signer and the proxy signer.
此外，新方案还满足强代理签名的所有性质，并且在原始签名者和代理签名者之间的通信可以不使用安全信道。
It is showed that our proposed blind signature and proxy signature are secure and effective.
分析表明，提出的盲签名和代理签名是安全有效的。
Proxy signature is summarized and analyzed.
总结和分析了代理签名。
An improvement to mend the security leaks was proposed, which overcame the disadvantages and retained the merits of the original threshold proxy signature scheme.
对该方案进行了改进，改进后的门限代理签名方案克服了原门限代理签名方案的安全隐患，并且保留了原门限代理签名方案的优点。
Strong proxy signature is researched and discussed in this paper.
本文对强代理签名进行了深入研究和探讨。
In this scheme, the key updating algorithm is used by the original signer, so the security of the proxy signature key is promoted to a higher level.
该方案将密钥更新算法应用在原始签名者计算过程中，更有效增强了代理签名密钥的安全性。
The security of the proposed proxy signature schemes is analyzed.
本文对该代理签名方案的安全性进行了分析和证明。
A forward secure short threshold proxy signature scheme from bilinear pairing is proposed by combining the concept of forward security with threshold signature from bilinear pairing.
将前向安全的概念结合到基于双线性对的门限签名方案中，提出了一个基于双线性对的前向安全短门限代理签名方案。
It mainly consists of two parts: proxy signature and proxy cryptosystem.
代理密码学主要包括代理签名和代理密码系统两个部分。
The paper proposes a folly distributed proxy signature scheme based on elliptic curve cryptography, which makes the distributed generation of the proxy key and the proxy signature more efficient.
文章提出了基于椭圆曲线密码的完全分布式代理签名体制，极大地提高了代理密钥分布式生成和代理签名分布式生成的效率。
The analysis of the property of the strong unforgeability and the necessity of a secure channel is one of the important content for the security analysis of the LKK proxy signature scheme.
强不可伪造性和对安全信道依赖性的分析是对LKK代理签名方案安全性分析的重要内容之一。
To solve all these problems, a more secure multiple grade proxy signature scheme is proposed in this paper based on the study of a difficult mathematical concept, the discrete logarithm.
作者就此诸多问题，基于离散对数这一数学难题，提出了一种安全的多级代理签名方案。
Based on proxy signature and convertible authenticated encryption scheme, Ren et al. (2005) proposed proxy convertible authenticated encryption and threshold proxy signature scheme.
基于代理签名与可转换认证加密方案，任等(2005)提出了一种代理可转换认证加密和门限代理签名方案。
To strengthen proxy signature security, and analyses of proxy signature scheme in being, this paper proposed a proxy signature scheme based on the hyper elliptic curve cryptography.
为提高安全性，在对现有方案分析后，提出了一种新的代理签名方案。
This scheme meets the requirement of blind proxy signature, while the third party is easy to revoke a supposed signature and cancel the right of a supposed signer.
论文利用公平电子现金的思想，在谷利则等人的盲代理签名方案的基础上提出了一个可撤销匿名、可回收代理签名权的代理签名方案。
It is shown here that S-L-H scheme is insecure against the public key substitution attack and an improved threshold proxy signature scheme is proposed.
这里指出s - L - H方案不能抵抗公钥替换攻击，并给出了一个改进的门限代理签名方案。
Proxy signature and bling signature are two new types signature. In this article, one proxy signature and proxy blind signature is devised. It's security is also analyzed.
代理签名和盲签名是比较新的两种签名类型。文中给出了基于椭圆曲线的一个椭圆曲线代理签名和代理盲签名方案，并对其安全性作了分析。
A new proxy signature scheme is proposed. The security is based on factoring representation problem, so it is not based on the discrete logarithm problem cryptosystem.
提出了一种新型代理签名方案，其安全性是建立在因子分解表述难题之上，因而不是基于离散对数密码体制的方案。
The analysis of security shows that it is a weak proxy signature scheme and does not belong to a strong proxy signature scheme.
安全分析表明它是一种弱代理签名方案，不属于强代理签名。
Meanwhile we give a primary discussion on proxy signature of protecting proxy signer's privacy, and propose some improved schemes.
同时对保护代理者身份的代理签名进行了初步的探讨，提出了一些改进方案。
Due to the use of short signatures, the scheme is not only efficient, but also satisfies all the security requirements of the strong proxy signature.
该方案与其它方案相比，不仅更为高效，而且达到了强代理签名的安全性要求。
This paper proposed a secure proxy signature scheme based on the security of logarithmic problem and one-way function.
基于离散对数问题和单向函数的安全性，提出了一个新的安全的代理签名方案。
With proxy signature, an original signer can entrust his signing authority to a proxy signer.
在代理签名方案中，原始签名人能将其数字签名权力委托给代理签名人。
Because PKG can compute the private key of any user in system, it can forge a blind signature or a proxy signature of any one.
因为PK G可以计算系统内任何用户的私钥，当然可以伪造任何用户的盲签名和代理签名。
The analysis shows that our proposed blind signature and proxy signature are secure and effective.
分析表明，所提出的盲签名和代理签名是安全有效的。
Based on the elliptic curve discrete logarithm problem, Ji and Li proposed a proxy signature scheme and a proxy multi-signature scheme and Chen et al. proposed two proxy multi-signature schemes.
基于椭圆曲线离散对数问题，纪家慧和李大兴提出了一个代理签名方案和一个代理多签名方案，陈泽雄等人给出了另外两个代理多签名方案。
Based on the elliptic curve discrete logarithm problem, Ji and Li proposed a proxy signature scheme and a proxy multi-signature scheme and Chen et al. proposed two proxy multi-signature schemes.
基于椭圆曲线离散对数问题，纪家慧和李大兴提出了一个代理签名方案和一个代理多签名方案，陈泽雄等人给出了另外两个代理多签名方案。
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