Application and Study of Elliptic Curve Cryptosystem for Electronic Document
Tao Liu, Hou Zheng-feng · Microcomputer Development · 2004
Elliptic curve cryptosystem is a kind of public-key cryptosystem based on algebra curve.Its security based on elliptic curve discrete logarithm problem.In this paper elliptic curve cryptosystem is taken use of generating digital signature in order to solve the problem of identity authentication.And two kind of cryptosystem are adopted to encrypt electronic document:One is DES algorithm,typical private-key cryptosystem,is taken use of encrypting text of electronic document;Another is calculating public key and private key from receiver and sender based on elliptic curve cryptosystem by some form generate the key which is needed for DES algorithm.The problem of antinomy about speed and security on cryptosystem has been solved by use of combination the algorithm of public key with the algorithm of private key.