交换法： 交换法的程序最清晰简单，每次用当前的元素一一的同其后的元素比较并交换...

组播以其独特的优势，在网络通信方面的应用越来越广泛，但随之而来的就是安全问题，其中密钥管理是最基本的问题之一。本文研究了安全组播中的密钥管理问题。介绍了现有的两种主要解决方案，即SKDC方案和密钥树管理方案，并分析了它们的不足之处，指出基于密钥树的研究方向，在此基础上提出基于Huffman密钥分级树的密钥管理方案，将布尔函数的分析方法运用其中使管理简便化。并对该方案的性能从密钥管理的存储空间和密钥刷新通信量两个方面，给出了相应的分析。-Multicast With its unique advantages in the communication network is widely applied, but the attendant security issues, key management is the most basic one of the problems. This paper studies the security Multicast key management issues. Of the two main existing solutions, and key programs SKDC tree management program analysis of their deficiencies, that the tree on the key directions of research on this basis based on the classification tree Huffman key Key Management Program, Boolean function of the analytical method which enable the use of simple. Program and the performance of key management from the storage space and traffic Key set two, given the corresponding analysis.

实现了NTP时间同步的客户端，服务器端需要自己配置，配置方法在相应的文档里有详细描述，希望能帮到大家

Endnote 是你整理文献的帮手，可以让你在众多的文献中，迅速找到你需要的信息-Endnote is to help you organize the literature, can put you at the large number of literature, quickly find the information you need

how to do data structure programming with java

电脑基本知识-Basic knowledge of computer

Detailednetworkport，网络端口详解，对初学者有很大的帮助-Detailednetworkport, detailed port of great help for beginners

jsp 快速入门不求人，为jsp经典教材，学了本书，在不用看任何jsp基础，直接下一步框架吧！-jsp Quick Start angeljuliet to jsp classic materials and the theory of the book, in jsp not see any basis, directly next framework!

创建特色按钮，vc6.0环境下开发，很有用啊-Button to create features, vc6.0 environment development, useful ah

本书是为那些已经掌握了AsP．NET和c＃，并了解XML及其相关技术的、有―定经验的Web开发人员编写的

ASP与DHTML资料集锦-ASP and DHTML Data Collection