说明：  公共安全编程接口(CSPI)是安全中间件与用户之间的接口，通过使用公共安全编程接口用户可以透明地利用安全中间件完成安全 服务。该文介绍了安全中间件的体系结构，给出了公共安全编程接口的设计和实现。（硕士毕业论文）
(Public Safety Programming Interface (CSPI) is a security middleware and user interface between the programming interface through the use of public safety users can transparently take advantage of secure middleware security services completed. This paper introduces middleware security architecture, gives the public programming interface design and realization. (Master Thesis))