实现密钥的安全控制和管理是整个应用系统安全的关键，《密钥管理系统》设计遵循《中国金融集成电路（IC）卡规范（1.0）》和《银行IC卡联合试点密钥管理系统总体方案》，整个系统遵循以下设计原则：-Achieve key security control and management of the entire application system security key, " Key management system" designed to follow the "

IC卡 动态数据认证 目前比较流行的算法-With focus on the Windows OS based industrial control software,this paper discussed the main features in industrial control software based on modularity design from the aspects of module, DDE, OLE, OPC and the open database linkl