接着阐述了网络环境下高校管理信息系统的概念构成及构成变化和高校管理信息系统的安全构成；
Then, it elaborates the concept constitution and its changes of college MIS in web environment and college MIS security constitution.
如今在计算机网络环境下信息的机密性、安全性、完整性、可用性等特性，都需要采用密码技术来解决。
Nowadays, in the computer network environment, all the confidentiality, security, integrality, usability and nonrepudiation of the information must be resolved by encrypting technology.
身份识别和认证以及数字签名技术是现有的安全理论中保证网络环境下信息安全传输的有力手段。
Identification recognition, authentication and digital signature are strong methods of available security theories to secure safe transmission in network environment.
着重介绍网络环境下医院信息管理系统的安全保障体系，从三个层面来构筑数据保护的屏障。
This article outlines the methods of building a safe environment for the hospital information system, and protecting data in three levels.
本文介绍了网络环境下信息安全的概念和所要解决的问题。
This text recommended the concept of the safety of information, and the problems which it would solved under the environment of the network.
基于密码学的公钥技术提出了一种混合密钥加密系统，并加入认证技术，从而构建了一个网络环境下的虚拟光学信息安全系统模型。
A model of hybrid cryptosystem was proposed with the aid of public key techniques. Through this model, the solution of aforementioned issues may be found.
基于对公钥密码体制的分析，研究了RSA密码体制的实现算法，开发了端对端的网络传输信息加密解密系统，在实际网络环境条件下进行的测试证明了其安全性和可靠性。
Based on the analyzing of public_key cryptosystem, a practical algorithm of RSA is studied. A network information encryption and decryption system of end to end is developed.
基于对公钥密码体制的分析，研究了RSA密码体制的实现算法，开发了端对端的网络传输信息加密解密系统，在实际网络环境条件下进行的测试证明了其安全性和可靠性。
Based on the analyzing of public_key cryptosystem, a practical algorithm of RSA is studied. A network information encryption and decryption system of end to end is developed.
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