代理签名

Then, a self-certified anonymous proxy signature scheme based on the view of self-certified public key policy and the scheme of anonymous proxy signature are proposed. The proposed scheme not only lightens the burden of verifier, but also has characteristics such as anonymousness and trackability.

然后，结合自证明公钥体制和匿名代理签名，设计出一种自证明匿名代理签名方案，此方案不仅能减轻验证者的负担，还具有匿名性和可跟踪性的特点。

This paper proposes an universal e-cash system based on partially blind signature which can be divided to small pieces of arbitrary number one time, so-called single-divisibility.

针对通用电子现金系统的难点在于其可分性，本文提出的方案以SK00系统为基础，实现其转移性(SK00公开问题)，并给商家颁发电子执照行使银行的部分职能，进而提出了一个显式可分(即一次性任意分割电子现金)的离线电子货币系统；同时利用以前的技术实现了一个采用树型结构的可分电子现金系统，并比较了这两个方案和以前方案的效率；二者安全性基于离散对数问题和强无碰撞Hash函数安全性；最后本文利用代理签名给出了一个新的部分盲签名方案。

Another content of this thesis is proxy signature, The concept of the proxy signature scheme was first introduced by Mambo et al.

本文的另一个主要内容是代理签名，它作为一种新型的数字签名方案，首先是由Mambo et al。

Proxy signer privacy protection is one of the important researches for the strong proxy signature.

代理签名人身份保密是强代理签名的一个重要研究方向。

A proxy signature scheme based on encryption and blind signature was proposed to protect original signer's privacy.

为了保护原始签名人的隐私，提出了一种基于加密和盲签名的消息保密的代理签名方案。

We do research on identity based proxy multi-signature and designated verifier proxy signature.

3对基于身份的代理多重签名和指定验证者代理签名进行了研究。

We formalize a notion of security for proxy multi-signature and multi-proxy signature, i.e., existentially unforgeability under an adaptive chosen-message attack and an adaptive chosenwarrant attack.

本文给出了代理多重签名和多重代理签名的安全定义，即适应性选择消息攻击和适应性选择授权文件攻击下的不可存在性伪造，并建立了形式化安全模型。

Meanwhile,the actual proxy signers cannot deny the proxy signature they have signed.

真实的代理签名人无法否认他们的代理签名。

Based on the existing ID-based signature, a new ID-based blind signature without trusted PKG is proposed. Meanwhile, a new ID-based proxy signature without trusted PKG is also proposed.

本文在已有基于身份无可信中心签名的基础上提出了一个基于身份无可信中心的盲签名，同时提出了一个基于身份无可信中心的代理签名。

Based on the current ID-based signature and ID-based blind signature, a new ID-based blind signature without trusted PKG was proposed. Meanwhile, a new ID-based proxy signature without trusted PKG was also proposed.

在已有基于身份无可信中心签名的基础上结合基于身份的盲签名提出了一个基于身份无可信中心的盲签名，同时提出了一个基于身份无可信中心的代理签名。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。