WAP规范下的WML编码器及传输安全层协议的分析和实现

【作者】 江颉；

【导师】 蔡家楣；

【作者基本信息】 浙江工业大学 ， 控制理论与控制工程， 2001， 硕士

【摘要】 随着知识经济的发展，现代社会人们对于各种信息的需求量也正在逐渐的递增。尤其是Internet的发展和普及，正逐步改变着人们的生活方式。然而，Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。移动通信的出现打破了位置与通讯工具之间的常规联系，为实时、便利的进行信息交流提供了可能。将移动通信的通信手段与Internet上的信息资源相结合，发展无线数据业务，已成为当前移动通信行业和信息行业的重要发展方向和发展热点。 本文介绍了一种新的无线互联网技术--WAP（Wirelee ApplicationProtocol）技术。它是利用无线网络开发无线应用、提供信息服务的通用规范，它为在数字移动电话、寻呼机、个人数字助理（PDA）和其他无线终端上实现Internet通讯和无线数据业务提供了一个开放的、通用的规范。通过对该技术规范的研究，建立有自主产权的WAP网关开发平台软件，将有助于推动WAP技术在我国的应用和发展。 文中详细描述了本人所作的工作，即WAP规范下的WML编码器及传输安全层协议服务器端的实现。前者实现了WAP所支持的WML语言从文本格式转换成压缩的二进制编码WBXML格式，提高了移动终端对WAP应用支持的兼容性，同时也降低了网络传输的数据量。后者提供了WAP网关的安全服务，是实现安全传输的必要条件。这两项工作是整个WAP网关平台软件的重要组成部分。最后，通过对WML编码器的相应软件的举例比较和对网络加密的原理分析和举例说明，对本文实现的工作，给出了各自的性能评价和改进意见。 这两项工作的程序已经在实际机器上运行成功。更多还原

【Abstract】 With the development of the knowledge economy, the requirements of people in the modem society to the all kinds of information are increasing gradually. Especially, the development and the popularization of the Internet are changing the peoples?life. But the intrinsic way of the Internet by wire confines accessing and using of the network information. The Mobile communication breaks the general contact of the position and the means of communication, which provide the possibility to communicate the information timely and conveniently. The combination of means of mobile communication and the. resources of the Internet information is the important direction and focus of development in the domain of the current mobile communication and information. This thesis introduces a new technology of the Intemet---WAP (wireless Application Protocol) technology. The Wireless Application Protocol (WAP) promotes industry-wide specifications for technology useful in developing applications and services that operate over wireless communication networks. It specifies an application framework and network protocols for wireless devices such as mobile telephones, pagers, and personal digital assistants (PDA). Researching the technology specification will help to build the development platform of the WAP gateway which has the independent intellectual property and contributes to impulse the application and the development of the WAP technology in our country. The paper elaborates the primarily works of mine. There are the WML encoder and the implementation of the wireless transport layer security protocol in the server .The former implement the transformation between the text form of the WML which is defined by the WAP and the compressed WBXML form. It improves compatibility between the wireless devices and the application of the WAP and decreases the quantity of data in the network. The latter provides the security service of the WAP gateway, which is the necessary condition to transport securely. The two works are the import parts of the WAP gateway platform. Finally, the performance evaluation and the advice of improvement have been illustrated by giving examples for the corresponding software of the WML encoder and analyzing the encryption theory of the network security.The implementations of the two works have been run successfully.更多还原