基于智能卡的身份认证及其应用

本文总结了当前常用的身份认证方式,并且评价了其优缺点.这些身份认证方式大多数都是在线认证方式.借鉴当前电话卡(智能卡)的一种离线认证的方式,提出了电子商务应用中的离线认证模型.然后,根据电子商务的支付方式,设计出一种基于智能卡的离线认证和安全通信的电子商务应用系统,并且分析了该系统的安全性.     

探讨CA认证技术在烟草行业电子商务中的应用

随着烟草行业电子商务的蓬勃发展和CA认证技术的逐步完善,CA认证技术在电子商务的中应用趋势日益明显。首先说明了烟草电子商务的发展背景及其存在的安全隐患,列出了几种适用保证烟草行业电子商务安全性的CA认证技术应用方式,并从烟草行业电子商务的应用实际出发,提出了在烟草网上订贷系统实现OA认证技术的设计方案,探讨了在烟草行业电子商务中应用CA认证技术的可行性。     

多媒体商务网站数据结构算法的设计与实现

在多媒体商务网站采用公开加密技术后,伴随而来的是密钥的管理问题。文章对商务网站的安全需求和实现安全电子商务的基本技术进行了简述,介绍了安全电子商务网站所涉及到的密码学方面有关知识和常用的算法,重点阐述了安全认证机制的组成与相关数据结构算法的设计。     

电子商务网站的安全问题研究

电子商务是以Internet为基础平台的商务活动,是现阶段网络的重要应用之一,安全是电子商务网站建设和管理运行的关键,该文讲述了电子商务的重点安全问题,包括数据库安全、用户认证、包括WEB页面安全等。     

BtoB网站用户访问模式挖掘研究

把数据挖掘技术与电子商务网站有效结合，深入分析Apriori算法，并运用散列技术改进算法来实现电子商务网站用户访问关联模式的挖掘。经过实验验证，这是一种有效的分析、评价和完善电子商务网站的方式。     

多媒体商务网站数据结构算法的设计与实现

在多媒体商务网站采用公开加密技术后,伴随而来的是密钥的管理问题。文章对商务网站的安全需求和实现安全电子商务的基本技术进行了简述,介绍了安全电子商务网站所涉及到的密码学方面有关知识和常用的算法,重点阐述了安全认证机制的组成与相关数据结构算法的设计。     

支付宝“数字黄金甲”重装上阵

数字证书已经成为目前解决身份认证和网络安全问题的较佳办法。数字证书等保护网站安全的概念对于我们来说已经不再陌生。自从2005年以来,电子商务便开始成为互联网发展最具价值潜力的领域之一。交易中的诚信和安全等瓶颈正逐渐被打破,保障安全技术的不断更新也在为电子商务的前行铺路奠基。而不久前支付宝推出的数字证书无疑再次加固了电子商务发展的基石,并且也将为网上交易量身打造这副牢固的“数字黄金甲”。果断采用数字证书2006年3月9日13时30分,支付宝网站正式推出了数字证书,并向其所有的认证用户免费发放,用电子方式证实用户身份,…     

与国际大牌携手共建“电子商务解决方案示范中心”

由首都信息发展公司作为主体的首都电子商城,是目前国内最大的、功能最强的电子商务联合网站,首都电子商城在推动电子商务发展中充分发挥了联合共建、优势互补、整合经济的作用,克服了制约中国电子商务发展的瓶颈,如：认证体系、安全配置、支付方式、法律环境、互联网络、物流配送、多模式交易平台等,把中国众多电子商务网站吸引到首都电子商城中来,使他们依托首都电子商城开展各具特色、不同模式的电子商务。 早在去年,首都电子商城就克服了政策上、技术上等障碍首次把电子商务推到全球。在采取高度安全和作了充分准备后,首信公司…     

小型电子商务网站规划设计研究

小型电子商务网站作为电子商务活动开展的基础平台,也是电子商务活动开展以及推进未来商务发展的重要设施。本文针对小型电子商务网站规划设计,分别在小型电子商务网站的总体规划、建设方式以及网站设计等几方面详细介绍了小型电子商务网站规划设计细节,可以为小型电子商务网站的建设提供合理的参考。     

我国主要电子商务认证中心介绍

编者:新世纪电子商务成为经济增长的主要动力,而数字认证技术将是电子商务安全的基本保证.在此我们介绍国内已经开通的电子商务认证中心(CA)网站,希望对您的电子商务活动有所帮助. ……     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.     

The Distributed Time-Triggered Simulation Scheme: Core Principles and Supporting Execution Engine

Distributed real-time simulation is a young technology field but its practice is under increasing demands. In recent years the author and his collaborators have been establishing a new approach called the distributed time-triggered simulation (DTS) scheme which is conceptually simple and easy to use but widely applicable. The concept was initiated in the course of developing a new-generation object-oriented real-time programming scheme called the time-triggered message-triggered object (TMO) programming scheme. Some fundamental issues inherent in distributed real-time simulation that were learned during recent experimental studies are discussed along with some approaches for resolving the issues. An execution engine developed to support both the TMOs engaged in control computation and the TMOs engaged in DTS is also discussed along with its possible extensions that will enable significantly larger-scale DTSs.     

Software-Konfigurationsmanagement in großen Softwareprojekten

Zusammenfassung Mit zunehmender Größe der Softwaresysteme verschärfen sich die für die Software-Herstellung typischen Probleme: Beherrschen großer Objektmengen, Erhalten der Systemkonsistenz, Kontrolle der ständigen Änderungseinflüsse und Gewährleisten einer langen Lebensdauer. Die Disziplin Konfigurationsmanagement bildet den methodischen Ansatz, diese Probleme besser zu beherrschen. Software-Konfigurationsmanagement faßt die Herstellung von Softwaresystemen als eine Abfolge von kontrollierten Änderungen an gesicherten Zwischen- und Endergebnissen auf. Dargestellt werden die Objekte und Funktionen des Software-Konfigurationsmanagements sowie die hierfür in großen Software-Projekten benötigten Methoden, Instanzen und Hilfsmittel.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and     

Editorial:Brain-machine interface(BMI) and cyborg intelligence

正Brain-machine interfaces(BMIs)aim at building a direct communication pathway between the brain and an external device,and represent an area of research where significant progress has been made during the past decade.Based on BMIs,mind information can be read out by neural signals to control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate     

SCIENCE CHINA Information Sciences SUBJECT INDEX TO VOLUME 57(2014)

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