摘要： 开发了一种基于密钥集中式管理的数字签名方法,并在开发的办公自动化系统中予以实现。该方法利用MD5算法来抽取公文信息指纹,利用RSA公开密钥算法在公文信息指纹上实施签名,从而保证了公文信息的完整性,并通过一种密钥生产管理系统来生产并管理办公自动化系统中所有合法用户的公/私密钥对,从而保证签名的真实性与安全性,并为用户使用密钥提供方便。通过测试表明,该文实现的数字签名具有良好的运行性能,完全可以满足在办公自动化系统下运行的要求。

关键词: 数字签名, 密钥管理, 消息摘要

Abstract: A novel digital signature method is implemented in the automatic office system.In this method,MD5 information digest algorithm has been adopted to extract the print of documents and RSA public key algorithm has been adopted to produce digital signature on document print.These two algorithms can protect documents from being tampered and document receiver can make sure of the author of the document he received.In order to make sure the key’s origin and security,the paper comes up with a subsystem called the key build and management system to produce keys for all valid users.The running test proves that the method has an ideal performance in measuring of executing time and memory space.

中图分类号: 

• TP311.11