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1.
新一代私钥加密标准AES进展与评述   总被引:24,自引:3,他引:21  
DES使命已尽,AES业已公布。通过回顾美国国家标准和技术研究所(NIST)最近公布的新一代私钥加密标准AES算法的遴选过程,对AES的基本设计思想进行了分析讨论,并对AES算法的最新进展进行了评述。  相似文献   

2.
Rijndael算法是美国21世纪先进加密标准(AES)。该文首先简要介绍AES算法的加解密流程,同时针对流水线设计在硬件实现中的高效特点,在对AES算法基本结构和循环展开结构进行分析的基础上,对AES算法的加解密部分进行了内、外部流水线的设计,并对几种设计结构的性能进行了一定的比较和思考。  相似文献   

3.
本文采用Minitab软件中的单值移动极差法监控ICP光谱仪波长校正系数s值,通过对波长校正系数稳定性的研究,找出异常值产生的原因,并提出预防改进措施,从而提高ICP光谱仪的稳定性,保证实验数据的准确可靠。  相似文献   

4.
高级加密标准(AES)的传统实现方法是对加/解密算法进行单独设计,占用了过多的硬件资源。该文在分析AES加/解密算法机理的基础上,介绍了算法各模块的设计方法,通过分析提取了加/解密算法之间存在的共性,给出算法的可重构设计实例。通过FPGA仿真验证,该方案与传统设计方案相比,减少了资源的消耗。  相似文献   

5.
通过对现有数据加密技术的分析,提出了一种将AES和RSA相结合的组合加密系统。利用AES算法加密速度快,而RSA安全性高这一特点,从而有效的解决了速度和安全二者不能兼顾的问题。提高了软件的加密处理速度与加密强度。  相似文献   

6.
提出一种采用AES算法和RSA算法相结合的混合加解密算法,并采用Altera的NiosII软核用户自定义指令功能实现该混合加解密算法。文中主要对该混合加解密算法中的AES算法进行了设计、论述,通过对AES算法的轮变换和密钥扩展两部分算法的分析,并在NiosII软核上实现其自定义指令,就可以使用简单的几条语句快速地实现AES算法,大大地提高了算法实现的灵活性,最后给出了使用NiosII用户自定义指令实现与使用VerilogHDL实现AES算法效果的对比分析。  相似文献   

7.
AES线性层分析及扩散特性仿真   总被引:1,自引:0,他引:1  
通过由线性码设计最优扩散线性层的方法,对AES算法的线性层进行分析和仿真,结果表明它具有最优扩散特性,同时证明了这种设计方法的有效性。  相似文献   

8.
针对配送物资跟踪系统中RFID标签的相关限制,设计了基于AES算法的数据加密方法.实现了AES算法的相关程序,对AES算法应用于配送物资跟踪系统进行了相关的安全性分析.  相似文献   

9.
论文主要是通过运用先进的AES加密算法,设计出一个在Lmux操作系统下的安全文件系统(ASFS—AES Algorithm Safely File System),使加密技术和文件系统紧密结合,能够让系统自动地对系统中的文件和目录进行加密和解密操作;从而提高文件系统的安全性,有效地保护用户的数据。  相似文献   

10.
提出一种采用AES算法和RSA算法相结合的混合加解密算法,并采用Altera的NiosII软核用户自定义指令功能实现该混合加解密算法。文中主要对该混合加解密算法中的AES算法进行了设计、论述,通过对AES算法的轮变换和密钥扩展两部分算法的分析,并在NiosII软核上实现其自定义指令,就可以使用简单的几条语句快速地实现AES算法,大大地提高了算法实现的灵活性,最后给出了使用NiosII用户自定义指令实现与使用VerilogHDL实现AES算法效果的对比分析。  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
《计算机科学》2007,34(4):148-148
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.  相似文献   

18.
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.  相似文献   

19.
正The 34th Chinese Control Conference and SICE Annual Conference 2015(CCCSICE2015)is organized by the Technical Committee on Control Theory(TCCT)of Chinese Association of Automation(CAA)and the Society of Instrument and Control Engineers(SICE)of Japan,and locally organized by Hangzhou Dianzi University(HDU).  相似文献   

20.
该文利用DF与CHI统计量相结合的特征选取方法,针对互联网上对外汉语相关领域的网页进行特征提取,并在此基础上,构建了基于标题与正文相结合的两步式主题相关度判定分类器。基于该分类器做对外汉语相关主题的网页爬取工作,实验表明,效率和召回率比传统分类器都有较大程度的提高,目前该分类器已经用于为大型对外汉语语料库构建提供数据源。  相似文献   

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