With the increasing problems in the security of computer network, the network security becomes the focus of people's concern.
随着计算机网络安全问题的不断增加，网络安全成为人们关注的焦点。
Therefore, the ability to guarantee the security of computer network system and normal operation of network management will become an important issue.
因此，能否保证计算机网络系统的安全和正常运行便成为网络管理所面临的一个重要的问题。
This article first analyzes the security of computer network, introduces basic technology that guarantee the security and emphasizes that cryptography is the core technology.
本文第一章分析计算机网络的安全性，介绍保障计算机网络安全的基本技术，指出密码技术是网络安全技术的核心。
The security of computer network has been the key factor of power system ' s proper operation.
计算机网络的安全性已成为电力系统正常运行的关键。
The security of computer network has been the key factor of power system ' s proper operation.
计算机网络的安全性已成为电力系统正常运行的关键。
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