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1.
基于智能网络磁盘的安全存储系统研究与设计   总被引:1,自引:0,他引:1  
针对海量数据存储安全问题,提出并设计了一种基于智能网络磁盘的安全存储系统。介绍了该存储系统的硬件和软件构成以及体系结构,分别从数据编码、数据分发以及数据恢复3个方面详细阐述了基于纠删码的数据安全存储机制的设计思路,对系统的安全可靠性进行了分析。分析结果表明,提出的安全存储机制具有较高的安全可靠性和良好的整体性能,对系统的时间开销影响较小。  相似文献   

2.
网络存储安全系统研究综述   总被引:1,自引:0,他引:1  
网络存储系统可统一为用户提供集中、共享和海量的存储服务.简要介绍了网络存储安全系统的研究概况,总结分析了当前网络存储安全机制及其优缺点,并指出了网络存储安全系统实现的主要关键技术,最后根据当前软硬件的发展和应用的发展需求,展望了网络存储安全的研究方向.  相似文献   

3.
针对智能电网用电数据存储系统中用电数据的安全问题,结合区块链共识机制、加密机制、对等网络和云存储技术,提出一种基于区块链的用电数据云存储方案,以确保用电数据的安全存储和共享.通过实用拜占庭协议,实现网络节点的共识,访问控制机制实现用电数据信息的共享,区块链存储用电数据的公共信息,并将用电数据的真实数据加密存储在数据库或云存储中,方便有效地实现敏感用户用电数据的存储和系统间的信息共享.在联盟链的环境下选取若干网络节点进行性能测试,通过安全性分析表明,该方案能安全、可靠地存储用电数据并且大大降低了网络节点的计算开销.  相似文献   

4.
以云存储在信息系统开发与建设的需求为背景,探讨能够兼容动态数据审计和网络编码的分布式存储系统实现原理以及基于ABE属性基加密的细粒度访问控制的安全增强模型,为云存储数据保护提供有效的方法。  相似文献   

5.
安全存储技术的进展和思考   总被引:1,自引:0,他引:1  
数据安全大体上可分为传输安全和存储安全。存储信息的泄漏将会导致非常严重的后果,因此必须保证其安全性。存储安全指在数据保存上确保其安全性、完整性、可靠性和有效性。该文阐述安全存储方案,并着重介绍实现数据安全存储的各种技术:加密存储标准体系P1619、自安全存储设备、基于软件的安全存储方案、SAN的组密钥管理以及容侵技术等,探讨了安全存储技术的发展方向,为安全存储系统的设计和研究提供参考。  相似文献   

6.
云存储服务允许用户外包数据并以此来降低资源开销。针对云服务器不被完全信任的现状,文章研究如何在云环境下对数据进行安全存储和加密搜索。多用户的可搜索加密方案为用户提供了一种保密机制,使用户可以在不受信任的云存储环境下安全地共享信息。在现有的可搜索加密方案的基础上,文章提出了一种安全有效的带关键字搜索的加密方案,以及更加灵活的密钥管理机制,降低了云端数据处理的开销。  相似文献   

7.
由于iSCSI协议不提供安全服务,大部分网络存储也不具备加密功能,提出了一种面向iSCSI的实时加密模块,使得网络存储系统加载该模块后,能够为用户提供透明实时的数据安全服务。为iSCSI target设计了加密写和解密读流程,加解密模块相对原网络存储系统独立,不用更改系统内核,而iSCSI initiator不会感知加密操作的存在,基于标准iSCSI协议的客户端可直接使用。此外,利用多核网络处理器的加密协处理器,来优化读写性能。实验结果显示,系统并没有因为加密模块的引入而导致严重的性能损失,性能令人满意。  相似文献   

8.
柔性网络化数据存储中心   总被引:2,自引:0,他引:2       下载免费PDF全文
网络存储技术的应用使存储系统和存储结构发生了显著的变化。柔性网络化数据存储中心(数据中心)采用基于IP的存储技术,使主机可以绕过服务器直接访问存储设备。该文分析了数据中心的体系结构,实验结果表明,数据中心相对于服务器存储,其性能有了大幅提高。应用于数据中心的“网络化光盘库”丰富了数据中心的存储层次,大容量磁盘缓存和光盘镜像技术提高了光盘库的性能。基于生物免疫思想的安全机制能有效地阻止对数据中心存储节点的异常访问和操作。  相似文献   

9.
针对云计算环境中来自数据中心或存储区域内部的攻击,以及适应更复杂的存储管理的需求。从分布式体系设计角度提出一个实现存储控制平面和数据存储平面融合的协同体系模型。为协同存储安全模型设计详细的多级可信管理、密钥管理和数据同步方案。实验结果表明对于大量中等文件的读写性能较好,数据安全管理造成的性能损失在可接受范围内。而且具有较好的可扩展性,能够适应大规模分布式存储系统的应用环境。  相似文献   

10.
刘明  苏锦海 《计算机工程》2007,33(18):170-171
具有带外存储虚拟化结构的iSCSI-SAN存在安全隐患:一方面,暴露在IP网络上的存储资源容易遭到假冒身份者的非法访问;另一方面,在网络上直接传输的明文存储数据面临着被网络攻击者监听的安全威胁。该文基于椭圆曲线密码体制ECC设计了适合该网络存储结构的安全模型,该模型通过提供双向认证机制防止假冒身份攻击,通过在认证过程中协商一次性会话密钥并对存储数据进行加密保证存储数据的传输安全,从而提高了存储系统的安全性。  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.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

20.
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   

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