《手写签字及数字签名双重认证系统的实现》：针对电子公文处理中痕迹跟踪保留及安全保密需求，给出一种手写签字及数字签名双重认证系统的设计实现，该系统能与公文处理流程无缝结合，提高公文处理的安全性.-"handwritten signature and Digital Signature Verification System Implementation" : against Electronic Document Processing traces tracking reservations and security needs, given a handwritten signature and Digital Signature Verification System Design and Implementation, The system can process and document processing seamless integration of document processing to improve safety.