基于AXIS的Web服务安全模型设计

本文讨论了Web服务安全模型和SOAP消息安全框架的核心技术，利用AXIS引擎的处理器可扩展性，按XML数字签名和加密规范建立了SOAP消息安全处理机制，设计了一套基于AXIS的SOAP消息级Web服务安全模型。     

Axis Web服务中SOAP安全的实现

针对网络交换明文形式的SOAP消息时存在的安全隐患，在通用的Web服务模型上，利用Apache Axis完成了Web服务的SOAP engine功能，并结合第三方安全包，签名和加密SOAP消息体内封装的XML文档，实现了SOAP消息的完整性和机密性。对其进行了安全性测试，保证了SOAP消息安全。     

基于Context-Store的Web服务性能优化方法

基于XML的SOAP协议使得Web服务与其他分布式计算模型如EJB、CORBA和DCOM等相比,在性能上有相当的差距,这影响了其应用.本文提出了一种基于Context-Store的SOAP消息优化方法,将消息分为静态消息部分和动态消息部分,尽量避免消息的冗余部分在网络中的多次传输,大大节省了带宽,提高了SOAP消息的传输速度,从而改善了Web服务的性能.实验结果表明,基于Context-Store的Web服务性能明显高于常规SOAP消息和压缩SOAP消息方法.     

SOAP消息部分信息加密研究

针对传统的Web服务安全保护技术方法已经不能满足Web服务的安全通信的需求的问题。本文在Web服务应用的安全需求基础上,提出了基于WSE 3.0的SOAP消息部分信息加密机制。当发送者传递SOAP消息经过中间接收者1和中间接收者2时,中间接收者会根据安全需求对所需要的信息进行处理,不需要处理SOAP消息中的全部信息。实验结果表明,该机制不仅提高了SOAP消息传输的效率,也保证了在传递SOAP消息过程中的安全性要求。     

Web服务消息安全的研究和模型实现

在.NET平台的基础上,对增强Web服务器的安全性进行了研究并给出了实现方法.利用WSE安全工具在.NET平台上实现基于WS-Security规范的消息及Web服务安全性模型,给出了对SOAP消息进行身份验证、数字签名、加解密和授权的方法,从而解决了服务请求者和服务提供者之间端到端的SOAP消息安全问题,确保了消息的机密性、完整性、不可否认性、身份验证和授权.     

Web服务消息级安全通信研究

随着Web服务的广泛应用,对其安全性的要求也不断提高,SOAP消息是Web服务通信所依托的最重要的媒介,因此SOAP消息的安全成为Web服务安全的关键。本文在分析安全的SOAP消息和安全的消息层通信的基础上,利用WSE3.0实现了自定义Username TokenManager的直接身份认证。     

基于Context-Store的Web服务性能优化方法

基于XML的SOAP协议使得Web服务与其他分布式计算模型如EJB、CORBA和DCOM等相比,在性能上有相当的差距,这影响了其应用．本文提出了一种基于Context-Store的SOAP消息优化方法,将消息分为静态消息部分和动态消息部分,尽量避免消息的冗余部分在网络中的多次传输,大大节省了带宽,提高了SOAP消息的传输速度,从而改善了Web服务的性能．实验结果表明,基于Context-Store的Web服务性能明显高于常规SOAP消息和压缩SOAP消息方法．     

基于SOA的SOAP消息交换安全的研究

在基于SOA的系统集成中,SOAP消息交换是一种必需的核心服务之一.在SOA架构中,关键是要提供消息级别的安全,当多个系统通过SOAP相互通信时,没有一个足够好的方法来避免XML重写攻击.现提出了一个保护SOAP信息完整性的方法.这种方法是基于消息结构信息(SOAP Account)来提供消息完整性的保护.另外,将从当前Web Service的一些安全规范来分析SOAP Account的完整性特点,提出了如何解决SOAP Account本身的安全方法.     

基于Axis和WSS4J实现SOAP消息安全

Apache Axis提供了用以开发基于SOAP的Web服务框架,将它与Apache WSS4J安全服务整合,可保障Web服务安全.通过在Web服务部署描述符文件中配置WSS4J handler,可给Web服务添加一个WS-Security层.基于Apache Axis和WSS4J的安全服务框架,通过用户身份识别技术可实现与指定的通信方进行SOAP消息传递,利用XML签名和XML加密机制则可以实现SOAP消息完整性和机密性.     

用WSE实现Web服务的签名和加密

介绍了一种实现Web服务安全通信的方法,叙述了消息的签名和加密的实现过程.介绍了使用WSE来对Web服务的SOAP消息进行基于消息的签名和加密的实现方法;并给出了一个利用WSE实现Web服务签名和加密的说明性实例.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has