Cut-and-Choose双向不经意传输

不经意传输作为现代密码学的一个基本工具,在安全协议的研究中起着重要作用.近年来,许多功能性更强的不经意传输变种被提出来,以适应不同的需求和环境.提出一个不经意传输变种,称为cut-and-choose双向不经意传输.基于同态加密给出该原语的一轮高效协议构造,且在半诚实模型下形式化证明了该协议的安全性.将cut-and-choose双向不经意传输运用到基于cut-and-choose技术的安全协议(尤其是安全两方计算)中,可以更具模块化地描述协议高层框架,降低协议交互轮数.此外,作为信息安全领域的一个底层基本工具,该原语本身也具有独立的研究意义.

基于BNC语料库的近义词用法对比研究——以choose和select为例

基于英国当代语料库(BNC),研究choose和select这组近义词在频数、搭配词和语义韵等三个方面的异同。研究表明:从整体和各个语域的频数及频率分布来看,choose的使用频率远远高于select的使用频率;在实际的语言交流中可以考虑词汇使用的优先原则。

The Input-output Status and Farmers’Willingness to Choose Ecological Operation of Hickory

This study takes Lin'an City which early carries out the experiment of ecological operation of hickory as the study site.On the basis of the input-output data on hickory and farmers' land,we analyze the input-output status of hickory land which practises ecological operation,the operators' willingness to accept ecological operation and the influencing factors.The results show that in the short term,ecological operation of hickory will have a certain negative impact on the economic benefits;within the experimental area,the degree of operators' willingness to accept ecological operation of hickory is high,and the operators have a clear understanding of long-term comprehensive benefits which may be brought by ecological operation;the ecological experiment and demonstration of hickory have achieved certain results;family income level,characteristics of householders,education and training,and so on,are the main factors that affect the operators' willingness to choose ecological operation.Finally,for how to further improve the promotion efficiency of ecological operation of hickory,we put forth some constructive recommendations.

基于Cut-and-Choose技术的安全多方计算

Cut-and-Choose技术是密码学中一种被广泛使用的密码学工具,对安全多方计算协议的设计起着重要的作用.其主要思想是一方在协议中构造多份混淆电路,另一方要求打开其中一部分电路进行检查,若检查通过则计算剩余的电路,决定电路的最终输出.在早期工作中,Cut-and-Choose技术主要应用于恶意模型下的安全两方计算,并由此产生了许多优秀的工作.尽管该技术在隐蔽安全模型中的工作也很早提出,但在当时并没有引起太多的关注.近年来,随着学者对于隐蔽敌手的深入研究,Cut-and-Choose技术以及基于该技术的思想也开始被用于实现公开可验证的隐蔽安全协议,涌现出一些代表性的工作.首先介绍了Cut-and-Choose技术在恶意安全模型和隐蔽安全模型中的研究进展;其次重点介绍其应用于公开可验证隐蔽安全模型中的研究成果;最后通过对该领域的研究成果进行详细的总结与分析,并指出后续可能的发展方向.

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Which One to Choose?

My husband took two exams on the same day and camehome,exhausted(精疲力竭)from hours of answering multi-ple-choice questions.He lay on the sofa.My mother came totell him that dinner was ready and asked if he would prefer wa-ter,lemonade(柠檬水)or milk with his meal.He paused

CHOOSE函数在统计工作中的应用实例

统计工作是对社会经济现象的数量方面的信息资料进行搜集、整理和分析的工作过程。随着社会经济的迅速发展,统计信息的利用越来越广泛,统计人员快速准确地传递统计信息的能力更需要加强。本文通过实例演示了利用CHOOSE函数解决实际问题的方法,对提高统计工作效率,提升统计服务能力起到了一定的作用。

《Teenagers should be allowed to choose their own clothes》教学设计

教材分析：本单元所涉及的内容是含有情态动词的被动语态,是本书中比较重要的一部分。另外本课所涉及的情感教育于现实十分有用,对于激发和培养学生学习英语的兴趣,形成积极的学习态度,促进语言实际运用能力的提高具有重要意义。学情分析：学生的语法知识不扎实,写作中经常出现低级的语法错误、词性混淆、拼写错误等。而且班级优生缺乏,中游生停滞不前,后进生厌学情况严重。因此,本节课我实行分层次教学,针对不同学生的不同特点,一一攻破难点。

“Fabrics China”:the Right Way to Choose

Facing so many fabric suppliers and products,for fashion brands,how to make a choice;meanwhile,several suppliers are searching for their Mr.Right to do the deal.Is there any shortcut?"Fabrics China-New Products Promotion Fair"is

Go for it!九年级(上)Unit 7 Teenagers should be allowed to choose their own clothes.听说课教学设计

教学对象：九年级学生授课时间：2016年10月22日指导专家：丁薇吉林省教育学院初中研训部英语教研员吴晓威吉林省教育学院初中研训部英语教研员一、教学分析与整体设计思路（一）教学内容分析本堂课的教学内容Teenagers should be allowed to choose their own clothes.是人教版新目标九年级第七单元的内容。本单元的核心话题是＂规则＂,旨在让学生了解哪些事情是允许青少年做的。

Born to Choose

AS single women rush headlong toward their 40s. many are faced with an ultimatum. With their fertility clocks winding down and prospects of giving birth on the wane, it＇s a time for tough choices. And while Mr. Right may appear in their lives later, the knowledge that the patter of little feet could only be a dream has pushed some in this age group to seek other alternatives.

Majorizational Choosing of Several Different Fuzzy Counter Operator

Different fuzzy reasoning methods were made by choosing different fuzzy operater.This article generally introduced the basic structure of fuzzy controller,and gave several different fuzzy controllers,and compared and analyzed different fuzzy counters in theory and computer simulating control and realized majorizational choosing of several fuzzy counters.

A New Genetic Algorithm Based Upon Globally Optimal Choosing and Its Practices

A new genetic algorithm (GA) is developed. It features three new operations: restoration, reconstruction and recording the better, so as to produce a limited monotonic sequence of fitness value, to realize a globally optimal choosing, and to converge to a globally optimal solution through a perfectly stochastic process. Practical examples are given to illustrate the superiority of this new GA.

The Status Quo of Topics Choosing in English Majors＇ Academic Writings—— A Case Study of CUPL Junior English Majors

Academic writings, whether they are BA dissertations or semester papers, are important carriers of one＇s ideas and findings of their own study and research spheres. In academic papers, the most important part is the choice of topics which determines the macro direction of the paper. Important as it is, it is difficult for the English majors to choose the most appropriate topics with idea-invested thesis statements instead of some factual statements. Therefore, in order to make clear of the status quo and underlying obstacles of topic choosing, this paper is to study on 98 samples from China University of Political Science and Law＇s junior English majors. By observing and analyzing their writings, the paper intends to fred out some possible and accessible methods to improve English majors＇ academic writing and offer some insights for teachers to make some adjustments in accordance with the status quo.

A New Venture in China: Choosing Your Own Job

A novel kind of working person is emerging in China:the solo sailor who hoists his/her own sail to"go out to sea”in business and commerce,

Choosing a Pet

THE capital boasts countless markets of all kinds,but some of its insect,bird and pet markets immortalize Beijing culture and folkloric traditions.Don’t miss it! The Huasheng Tianqiao Market,south of the famous Panjiayuan Antique Market, was moved a few years ago and rebuilt in the