共查询到20条相似文献,搜索用时 93 毫秒
1.
2.
随机网格视觉密码体制与传统视觉密码体制相比,其数据量得到极大的降低.但这种视觉密码的安全性能却不理想.在传统随机网格体制基础上,提出了一种新的随机网格视觉密码方案.该方案与传统随机网格视觉密码相比,只增加了很少的数据量,却极为有效地提高了随机网格视觉密码的安全性能. 相似文献
3.
密码计算需要强大的计算能力,而网格计算作为一种新型有效的计算技术,能广泛集合网络上的资源形成一台虚拟的超级计算机.因此,把网格技术应用到密码学计算中具有重大的意义.介绍了一种密码计算网格系统的框架设计,并对其中的计算节点控制管理模块进行了详细设计和实现.此系统在DES穷举攻击实验中取得了非常好的效果,其它一些密码计算任务类似地也可用此系统分布式地实现. 相似文献
4.
网格安全问题是网格的核心问题之一。分析了网格安全问题的特点、安全需求及其研究现状,对现有一些主要的网格安全技术在密码技术、访问控制等方面进行了讨论,最后分析了GSI的安全实现。 相似文献
5.
6.
本文阐述了网格环境下的数据库安全与加密技术,给出了一种将加密数据库集成入网格的结构以及网格环境下的密码管理方法。 相似文献
7.
随着新的网格技术的广泛应用,对网格计算环境安全性不得不引起人们的重视。LDAP是一个信息目录,在该目录中只定义一次用户和组,来达到多台机器和多个应用程序间的共享。通过对Group对象类和User对象类的定义,完成用户名与用户密码的确定及用户权限的确定,从而做到对客户端与服务器端的加密与权限的控制。 相似文献
8.
陆炳旭 《计算机光盘软件与应用》2014,(24):314-315
本文从量子密码技术的基础和优势、量子密码技术的发展、量子密码技术的困境、量子密码攻击等方面综合阐述了量子密码技术的基本概况,并对我国在量子密码和通讯技术上的发展情况及量子密码技术发展展望进行了分析。 相似文献
9.
10.
11.
邹立坤 《数码设计:surface》2009,(8):17-19
技术美是自然科学在机械化大生产应用中呈现出的美学因素,它带动了技术的日趋人性化和艺术形式的推陈出新,成为现代设计重要的表现形式。本文从技术美的概念、技术美在现代设计中的表现特征、技术美对现代设计的影响三个方面对技术美做了系统探析,提出只有辩证的将技术美与设计的其他美学特征要求有机结合,才能实现现代设计的和谐发展。 相似文献
12.
13.
文章提出了航空企业技术图档动态管理电子化集成系统的工作流框架模型,设计了系统主要功能,描述了系统的突出特点。系统实现了技术图档资料动态管理与静态档案管理相结合,实现了图纸技术资料业务过程管理与科技、基建、设备等传统档案的资源共享,实现了档案管理与生产计划和工艺计划统一编码及信息共享。技术档案系统联网,达到档案信息时效性统一,满足和方便生产过程中技术人员的检索,提高技术档案利用率。系统运行后,应用效果显著,为企业进一步实现档案管理全面现代化奠定了技术基础。 相似文献
14.
Weinberg Gerald M. Freedman Daniel P. 《IEEE transactions on pattern analysis and machine intelligence》1984,(1):68-72
Formal technical reviews supply the quality measurement to the ``cost effectiveness' equation in a project management system. There are several unique formal technical review procedures, each applicable to particular types of technical material and to the particular mix of the Review Committee. All formal technical reviews produce reports on the overall quality for project management, and specific technical information for the producers. These reports also serve as an historic account of the systems development process. Historic origins and future trends of formal and informal technical reviews are discussed. 相似文献
15.
《Ergonomics》2012,55(13-14):1361-1374
This study is concerned with the anthropomorphization of technical devices and the resulting influence on human-machine interaction; a special focus is on the verbal interaction between human and machine. Questions included: why do people regard technical devices as humans, when do they do so and how do they perceive their own dialogue and other persons' dialogues with technical devices? Correlation coefficients were calculated between the amount of displayed anthropomorphism and subjects' personality structure, fear of technical devices and self-rated technical competency. A subsequent regression analysis revealed that extraversion and gender of the respondents significantly predicted the amount of interaction with technical devices. Regression analysis showed that neuroticism and agreeableness significantly predicted self-rated technical competency. Technical devices that were seen as helpers or friends were generally treated less unfriendly than devices perceived as merely tools. The findings are discussed in the context of emotion and stress at work and the usability of technical devices. 相似文献
16.
针对单一优选准则带来的装备技术需求多方案优选结果的片面性,建立了由需求满足度、技术先进程度、技术重要度和技术成熟度等构成的指标体系,实现了装备技术需求的多视角综合优选,克服了单一准则下优选方案的偏差。最后通过示例验证了方法的可行性。 相似文献
17.
This study is concerned with the anthropomorphization of technical devices and the resulting influence on human-machine interaction; a special focus is on the verbal interaction between human and machine. Questions included: why do people regard technical devices as humans, when do they do so and how do they perceive their own dialogue and other persons' dialogues with technical devices? Correlation coefficients were calculated between the amount of displayed anthropomorphism and subjects' personality structure, fear of technical devices and self-rated technical competency. A subsequent regression analysis revealed that extraversion and gender of the respondents significantly predicted the amount of interaction with technical devices. Regression analysis showed that neuroticism and agreeableness significantly predicted self-rated technical competency. Technical devices that were seen as helpers or friends were generally treated less unfriendly than devices perceived as merely tools. The findings are discussed in the context of emotion and stress at work and the usability of technical devices. 相似文献
18.
19.
20.
相控阵雷达波束控制系统的主要功能是实现对天线扫描波束的控制,在天线阵面的研制过程中,需要对波控系统及TR单元性能进行测试。本文介绍了一种用于波束控制系统的测试仿真平台的设计,并结合硬件技术、网络技术、自动测试技术及软件技术实现了该测试仿真平台。 相似文献