Study On The Technology Of Digital Signature

In recent years, with the rapid development of Internet and network applications in real life more and more widely. In the network communication process, the need to ensure data security, reliability and integrity, one of the most effective techniques is the use of passwords. Remote Authentication and digital signature technology also highlighted the increasingly important role.This paper studies asymmetric cryptosystem. Briefly introduced the concept of digital signature scheme, digital signature of the classification, and digital signature functions, features and other basic knowledge, which mainly describes the current most widely used digital signature algorithm RSA basic principles, RSA digital signatures, certification process, analysis of RSA digital signature of the security;Compared to RSA, The article also describes the prospects of a more have applied the principle of elliptic curve signature algorithm, signature verification process, and its unique advantages. This article also focuses on the computation load, security, and storage capacity in three areas of the RSA and Elliptic Curve Signature Algorithm are compared. In addition, the paper also public key encryption algorithm for key management in a brief introduction.Digital signature algorithm research and implementation is the focus of this article. In this paper, using Visual C + +6.0 of the RSA digital signature algorithm to achieve the function in order to ensure their safety, a combination of DES encryption algorithm, using a common realization of RSA and DES encryption signatures.