用ECDSA协议实现试卷分析系统数字签名的设计

Design of Digital Signature about Analysising Test-paper System based on ECDSA Protocol

为了适应高校新的培养和管理模式,设计了基于校园网的试卷分析系统。在该系统中,成绩和试卷分析内容的录入,由教师登录到试卷分析管理系统直接录入,然后加上数字签名,有效地防止了非法用户录入或者修改试卷分析的内容以及学生的成绩。由于椭圆曲线离散对数问题具有抗攻击性强、计算量小、处理速度快等优点,因此本文中的数字签名采用基于椭圆曲线的EC D SA协议,提高了系统的效率和安全性。

A MIS about analysising test-paper based on Campus-Net is designed in order to suit the new model of education and management. In order to avoiding the score of students and record of analysising test-paper to be inputted or changed by illegitimate users in the MIS,the teacher lands the MIS and inputs the score and the record, and adds up to digital signature. The paper has selected a digital signature scheme based on ECDSA protocol and it improves efficiency and security of system because Elliptic Curve disperse logarithm problem has some excellences about strong resistance ,few amount of calculating and high speed of transacting.