WPKI与PKI关键技术对比

与有线网络相比，无线网络存在较多的环境制约，包括带宽窄、延迟大、稳定性差等；同时，手持设备存在诸如CPU功能弱、存储量小、功耗受限、显示窗口小等等问题。为了使公钥基础设施(PKI)应用扩展于无线环境，WAP论坛定义了无线公钥基础设施(WPKI)规范。WPKI的宗旨在于尽可能使用现有PKI协议，仅在需要时才定义新规范，对WAP PKI和PKI在应用环境、协议架构、数据及业务流程、加密算法、证书格式及协议标准方面进行了比较。

Comparison between WPKI and PKI

Compared to wired networks,wireless data networks present a more constrained communication environment: less bandwidth,more latency,less connection stability,etc.At the same time,there are many problems in hand-held wireless devices application environment,such as less powerful CPUs,less memory,restricted power consumption,smaller displays and so on.The WAP PKI specification has defined by WAP Forum in order to extend the application of PKI to wireless environment.The goal of the WAP PKI is to reuse the existing PKI standards where available,and only develop new standards where necessary to support the requirements of WAP.The application environment,protocol frame,data and business flow,encryption algorithms,certificate form and protocol standards of WAP PKI and PKI were compared.