automatic bicycle using wireless techniques

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.

纯粹是学习专用～-is purely dedicated to learning

Winsock 2服务提供者接口（ Service Provider Interface, SPI）代表着另一端的Wi n s o c k编 程（和Winsock 2API相对应）。Wi n s o c k的一端是A P I，另一端则是S P I。-Winsock 2 service providers interface (Inter Service Provider face, SPI) represent the other end of the Wi n s o c k program (and corresponding 2API Winsock). Wi n s o c k end of the A P I, the other side is I P S.

C++ and Windows Programming primer.-C and Windows Programming primer.

SOA的相关内容的学习，从企业级别的角度介绍了SOA的部署过程。-SOA learning of relevant content, from the perspective of enterprise-level SOA describes the deployment process.

C常用算法(徐士良),很不错的，喜欢算法的朋友不妨看看；）-C algorithms (Shi-Liang Xu), is pretty good, so I like algorithm friends to take a look;)

EJB3.0,一本适合初学者的书，比较好学习-EJB3.0, a book suitable for beginners, a better learning

串口调试工具，用VC++做的，很好用，真的，不信你试试看-Serial port debugging tool, with VC++ to do, useful, really, do not believe you give it a try

这是labview7.0的中文使用手册，对于想入门学习labview，而又不想看英文手册的人来说是极为方便的-labview7.0 This is the Chinese user manual for the PC to learning portal. who do not want to see the English manual is extremely convenient

友邦单片机资料，暂时发几个，今后继续发，谢谢大家支持。-Friendly single-chip data, the time being some hair, hair will continue, thanks to support everyone.