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什么是信息安全呢？信息安全是指信息网络的硬件、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，信息服务不中断，它是一个涉及通信技术、计算机科学、数论、网络技术、密码技术、应用数学、信息安全技术、信息论等多种学科的边缘性综合学科。

What is information security? Information security [ 4 ] is the information network hardware, software and system data are protected from accidental or malicious destruction of reasons , change , disclosure, continuous and reliable system to run properly , information service is not interrupted it is a matter of communication technology, computer science , number theory , network technology, encryption technology , applied mathematics , information security technology , information theory and other disciplines marginal multidisciplinary . Broadly speaking all related information integrity , confidentiality , authenticity , availability and controllability of the theory are related technologies and information security research field.

国际标准化组织将“计算机安全”定义为：“为数据处理系统建立和采取的技术和管理的安全保护，保护计算机硬件、软件数据不因偶然和恶意的原因而遭到破坏、更改和泄露。”计算机安全不仅涉及技术问题、管理问题，还涉及有关法学、犯罪学、心理学等问题。

International Organization for Standardization of " computer security " is defined as : "To establish a data processing system and take technical and managerial security protection , protection of computer hardware, software, data is not due to accidental and malicious destruction of reasons , change, and leaked ." computer security involves not only technical issues , management issues , but also the relevant law, criminology, psychology and other issues.

可以用四部分来描述计算机安全这一概念，即实体安全、软件安全、数据安全和运行安全。而从内容来看，包括计算机安全技术、计算机安全管理、计算机安全评价与安全产品、计算机犯罪与侦查、计算机安全法律、计算机安全监察，以及计算机安全理论与政策。

 Can be used to describe the four parts of computer security concept that physical security , software security , data security and safe operation. From the content point of view , including computer security , computer security management, computer security assessment and security products, computer crime and detection, computer security law , computer security monitoring , and computer security theory and policy .

Computer information security related to environmental safety , safety equipment and computer network security and other aspects critical point .
1 ) environmental safety [ 6 ]
Environmental security of computer network information system security protection in your environment , such as disaster protection and regional protection , specific requirements refer to the national standard GB50173-93 " computer room design specifications ", GB2887-89 " computing space station technology" , GB9361-88 " computing space station safety requirements ."
2 ) Safety Equipment
Safety Equipment refers to the computer network information system security protection devices , such as equipment against electromagnetic radiation leak information to prevent the line interception , anti-theft , anti- crash , anti-electromagnetic interference , and power protection.
3 ) computer network security critical point
Critical point computer network security devices including internal and external networking , firewalls, wireless network equipment , VPN equipment.

In recent years . Internet security has become an important issue can not be ignored . To improve security , people a lot of research , a variety of programs, such as data encryption , digital signatures , authentication本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。