【摘 要】
：
网络安全是一个关系国家安全和主权、社会的稳定、民族文化的继承和发扬的重要问题.其重要性,正随着全球信息化步伐的加快而变到越来越重要."家门就是国门",安全问题刻不容缓
论文部分内容阅读
网络安全是一个关系国家安全和主权、社会的稳定、民族文化的继承和发扬的重要问题.其重要性,正随着全球信息化步伐的加快而变到越来越重要."家门就是国门",安全问题刻不容缓.网络安全是一门涉及计算机科学、网络技术、通信技术、密码技术、信息安全技术、应用数学、数论,信息论等多种学科的综合性学科.它主要是指网络系统的硬件,软件及其系统中的数据受到保护,不受偶然的或者恶意的原因而遭到破坏、更改、泄露,系统连续可靠正常地运行,网络服务不中断.网络安全从其本质上来讲就是网络上的信息安全.从广义来说,凡是涉及到网络上信息的保密性、完整性、可用性、真实性和可控性的相关技术和理论都是网络安全的研究领域.
其他文献
A one-dimensional mathematical model for unsteady sediment transport in the Lower Yellow River is developed. A coefficient of sediment distribution is defined t
The seasonal variations of convective activities over the South China Sea (SCS) and its neighborhood, as well as the similarities and differences of convection
Compared to North American shale composition (NASC), REE contents of sediments from the CC area in the Pacific Ocean are obviously high except that cerium has e
In order to evaluate the validity of commonly used formulae describing erosion and deposition of cohesive sediments for their application within numerical simul
This paper is concentrated on Cenozoic volcanism and geothermal resources in Northeast China. There are a lot of Cenozoic volcanoes, a large area of volcanic ro
The theory and simulation of fully-nonlinear waves in a truncated two-dimensional wave tank in time domain are presented. A piston-type wave-maker is used to ge
语文课程是中专院校各专业学生的主要文化基础课,它是学好其他学科的基础.但是目前我国中专生的语文学习现状令人担忧,提高中专生的读写能力迫在眉睫.本文根据调查,首先介绍
A comprehensive study on geothermal history of the Turpan-HamiBasin by vitrinite reflectance, fluid inclusion geothermometry, apatite fission track and 40Ar-39A
On the basis of introducing the basic categories of atmospheric refraction and their existing conditions, the forming processes of three kinds of atmospheric du
基于新土地征用与流转制度理论模型、理论与政策依据,探讨了土地征用与流转制度的创新研究,并由对现行土地征用制度的问题进行分析,说明实现土地征用与流转制度创新的政策途