WPKI是在有线PKI基础上进行优化拓展,为无线通信环境提供密钥管理的基础设施。介绍了WPKI体系的结构和PKI智能卡的特点,分析了智能卡在存储能力和处理能力上的局限性。在此基础上,从智能卡本身和WPKI体制的角度,给出了在智能卡上进行密钥管理和证书管理的策略。指出将智能卡安全应用于WPKI体系,智能卡还需相应的安全组件和安全设计,充分保证移动终端的安全。
Wireless PKI is an optimized extension of traditional PKI, which concerns the key management for the wireless environment. The architecture of WPKI and the features of PKI based smart card are introduced. The weakness on storage and processing ability of smart card are analyzed. Based on the analysis, the countermeasures for key management and certificate management on smart card are represented by considering the condition of smart card and WPKI. At last, another point that smart card needed when is used in WPKI is indicated as to add some secure component and secure design on smart card to assure the safety on mobile end device.