数字签名技术分析与研究

Analysis and Reasearch of Digital Signature Technology

本文介绍了数字签名的概念、分类及原理,具体讲述了RSA数字签名方案和ELGamal数字签名方案,并对这两种经典的数字签名方案进行了相应的数学描述。在此基础上指出两种方案的缺陷以及与之对应的解决方法。对数字签名应用过程中可能遇到的安全性问题进行阐述,给出预防签名方案被攻击的基本安全需求。最后,指出了数字签名今后的主要研究方向及最新研究动态。

This paper firstly describes conception,sort and principle of digital signature.We give mathematic description about two typical digital signature schemes based on RSA and ElGamal,and make corresponding analysis and remarks later on.Then we introduce the possible attack forms and basic security requirement of prevention in the application.Finally,we show the future of digital signature.