查询词典 group scheme

The alternating group iterative method is used to solve the implicit scheme and the Crank-Nicolson scheme of the dispersive equation.

数值试验对色散方程的隐格式与Crank-Nicolson格式分别应用交替分组迭代求解。

A comprehensive research has made in designing technologies of bilinear mapping based threshold group signature scheme. A bilinear mapping based chamellon threshold group signature and a forward security threshold group signature were analyzed, the mistakes and flaws in these schemes were pointed out.

对基于双线性映射的门限群签名方案设计技术进行了深入的研究，分析了一个基于双线性映射的卡梅隆门限群签名和一个基于双线性映射的前向安全的门限群签名，指出了这些方案设计中存在的一些设计错误和缺陷。

The designated verifier signature scheme was proposed using the root problem and conjugacy search problem in the braid group. Analysis shows that it is a simple, fast and efficient scheme with security features.

介绍了辫群的基本概念和辫群中的困难问题，在此基础之上，利用辫群中左右子群的元素可交换性，提出了一个基于辫群上的共轭查找问题和p次根问题的指定验证者的签名方案，通过分析可知，该方案具有简单实用、算法速度快和高效安全的特性。

Sell a data at reduced prices: The index is divided into group according to kind , is summed up as , assembles to diversity, curtate concrete method is: Height , weight , chest measurement , pulse , systolic pressure , the diastolic pressure index are divided into group according to age , sex , the sight index is not divided into group then according to the grade , the eye, eight indices and data that the at last examines and approves, handle by that 180 P calculators secretly scheme against, get the corresponding statistics blip.

处理资料：对不同指标按种类分组、归纳、汇总，具体分组方法是：身高、体重、胸围、脉搏、收缩压、舒张压的指标按年龄、性别分组、视力指标则按年级、眼别分组，最后审定的八项指标及数据，经180P计算器计算处理，取得相应的统计标识。

Based on the discrete logarithm problem on cyclic group Z and the intractability of reversing a one-way Hash function, an improved scheme is proposed which can satisfy alt the desired security requirements, by using a provably secure shortened signature scheme.

基于循环群Z上离散时数困难问题以及单向Hash函数的不可逆性，利用可证安全的短签名方案，设计了一个新的能弥补H-C方案安全隐患的认证加密方案。

In this dissertation, two new proxy signature schemes from bilinear pairing are proposed, which are all based on discrete logarithm problem on GDH group. In the first scheme, the proxy signing ability can be revoked during the period of validity. Then, the malicious signer can not sign messages any more. Moreover, in this scheme secure channels are not needed.

本文基于GDH群的离散对数问题结合短签名的特点设计了两个代理签名体制，第一个体制可以在证书的有效期内撤销代理签名权，从而防止不诚实的代理签名者继续签名，而且无需安全信道。

In this paper, an effective attack scheme is proposed, and two factors that a secure group signature scheme should possess was given.

本文提出一种有效的攻击方案，并给出安全群签名方案的应具备的两个要素。

We analyze a simple group key management scheme, point out a security flaw of the scheme and give some improvements.

接着介绍了一个简单的群密钥管理方案，指出其中的一个安全漏洞，给出一点改进建议。

To overcome the shortcomings of present divisible e-cash scheme, for the first time, the thesis introduces group signature into divisible e-cash system and view the e-cash withdrawn by users as the group certificate issued by group administrator. As all of ancestor nodes of the payment node arc blindly transformed, the divided parts from one e-cash are no longer linkable.

针对现有可分电子现金方案存在的诸多缺陷，本文首次将适合于大群的群签名思想引人到可分电子现金中，将用户提取电子现金视为群管理员颁发给用户的群证书，通过将支付节点前的祖先节点进行盲化使得同一电子现金分割后的不同分割单元间不再有可链接性。

The thesis structures many kinds of administration model, on the basis of discussing its one's own pluses and minuses, provide the recommendatory scheme; Have designed the corresponding organization according to the business relations of the real estate group of Chongqing real estate group, and has done the detailed discussion to the duty of every department in the organizationThrough the research of this text, the administration structure and institutional framework have been offered will have a realistic significance to Chongqing real estate group's administration structure and institutional framework construction , and will be revised and be perfected further in the future.

论文通过构建多种治理模型，在讨论其各自的优缺点的基础上，给出了推荐性方案；论文还根据重庆地产集团的业务关系，设计了相应的组织机构，并对组织机构中各部门的职责作了详细探讨。通过本文的研究，对重庆市地产集团治理结构和组织机构建设提供了现实的指导意义，有利于在以后的工作中进一步修改和完善。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。