文件系统过滤驱动开发代码，可用于文件加密，保护硬盘数据的安全。-File system filter driver development code, can be used for file encryption to protect the hard disk data security.

IC卡开发整套资源，包括资料与代码，能够进行扇区读写与加密-IC development of a complete set of resources, including data and code, can be sector, speaking, reading and writing with encryption