查询词典 scheme design

Aiming at this drawback, an improved scheme is introduced,in which not only the advantages of the Harn scheme are kept,but also the homomorphism attack is resisted effectively. In addition, the new scheme can ensure the scheme's security when the same random key k is used.

文章针对该方案的不足，提出一种改进方案，新方案不但保留了Harn数字签名计算速度快及容易实现密钥共享等优点，而且能够有效抵抗同态攻击，并且在随机密钥k重复使用时能够确保方案的安全性。

Upon the problems mentioned above, this paper focuses on the following work:? Analyzes the advantages and disadvantages for the key researches both in and abroad;? Studies some existing international standards and protocols including SET and ASC X9;? Gives the designing rules for the secure scheme then proposes a general simple model for mobile payment;? A secure scheme called SeMo is designed according to the different security needs for lineate links and wireless ones;? Analyzes the security for the scheme still basing on the two distinct links, which improves the scheme fully fulfilling the security requirements such as: authentication, integrity, confidentiality and non-repudiation.

针对上述问题，本文作了以下几点工作：●分析了国内外对移动支付研究的现有关键技术的优缺点；●学习了一些现有的国际金融规范和标准为准则；●借鉴安全电子交易模型方案，并参考了ASC的X9系列规范，提出一个简单可行的移动支付一般模型；●根据该模型尝试着根据无线和有线两个不同接口对安全性的需要，设计出移动支付系统的安全方案SeMo；●然后再根据接口的不同对该安全方案进行分析，证明该方案能解决移动支付的安全问题，也就是手持设备的认证问题以及数据保密性、完整性等问题。

First of all, this thesis points out that Qian-Cao-Xue\'s scheme (the first threshold proxy signature scheme from bilinear pairings) does not possess the property of strong unforgeability, presents two attacks and proposes an improved scheme which can resolve the security problem existing in their scheme.

本文主要研究了面向群体的数字签名中的代理数字签名、群数字签名及其应用，对一些数字签名的安全性进行了分析，设计了一些具有附加功能的数字签名。

S scheme which is a combination of Mambo et al.\'s proxy signature scheme and Zheng\'s signcryption scheme. Our analysis demonstrates that their scheme cannot guarantee strong unforgeability, strong identifiability, non-repudiation, and prevention of misuse.

他们的体制本质上是Mambo等人的代理签名体制和Zheng的签密体制的结合，安全性分析表明他们的体制不能满足强不可伪造性、强可识别性、不可抵赖性，也不能防止滥用。

So the aim of this article is to analysis the influence the existed three scheme, directional offering, repurchasing scheme and agreement transfer scheme. And then the listed companies can choice the suitable scheme by condition of themselves.

本文的写作目的就是试从上市公司自身的角度来分析目前已实际操作的三种国有股减持方式对上市公司的影响，以便有利于上市公司根据自身的实际情况来选择有利的国有股减持方式。

This includes board band base pay structure scheme, piece work incentive scheme, monthly bonus scheme and year end bonus scheme.

其中包括宽带结构的基本工资方案，计件奖金方案，月度奖金方案、终奖金方案。

This includes board band base pay structure scheme, piece work incentive scheme, monthly bonus scheme and year end bonus scheme.

其中包括宽带结构的基本工资方案，计件奖金方案，月度奖金方案、年终奖金方案。

The main results obtained are as follows:(1) A new multisignature scheme for specified group of verifiers is proposed;(2) A new signature scheme with threshold shred verification is proposed. Based on the proposed scheme, a new password shared authentication scheme is presented to repair the security flaw in Qi et al.

作者取得的主要研究成果如下：（1）提出一个新的针对指定接收组的多重签名方案；（2）提出一个新的门限共享验证签名方案，并设计了一个新的口令共享认证方案，该方案可以弥补祁明等的方案的不足；（3）指出Lim et al。

In comparison with the observations derived from NOAA AVHRR, under the framework of NCAR CLM3, SCF schemes like CLM3 default, Douville1995, and Roesch 2001 underestimate SCF over vast areas, snow lines simulated in these three schemes are located to the south of that in the AVHRR observation, especially in autumn when snow pack begins to establish; Wu2004 scheme also underestimates SCF in the Eurasian continent in autumn; Yang1997 scheme slightly overestimates SCF, especially along the southern border of the snow covered area; Niu2007 scheme which accounts for the seasonal variation of snow density overcomes the positive bias of SCF simulated by Yang1997 scheme to some extent.

结果表明，在NCAR CLM3的物理过程框架之下，CLM3、Douville1995、Roesch2001三种方案低估了广大地区的积雪覆盖率，模拟的雪线位置偏北，尤其是在秋季积雪初期；Wu2004方案低估了秋季欧亚大陆的积雪覆盖率；Yang1997方案模拟的积雪覆盖率有些偏高，尤其是在积雪覆盖区的南部边缘；考虑积雪密度变化的Niu2007方案一定程度上克服了Yang1997方案的正偏差。

This paper has discussed the focal point of design scheme and article of the two pillar stacker crane of universal use in modern most enterprises in detail put , in thirdly parts: elevator Gou , walk organization and fork telescoping mechanism design , design a kind of tape the cranes safe organization of flexible installation design scheme.

本文详细论述了在现代大多数企业中普遍使用的双立柱堆垛机的设计方案，文章的重点放在其三个部件：升降机构、行走机构、货叉伸缩机构的设计上，并设计一种带柔性装置的堆垛机安全机构的设计方案。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。