基于椭圆曲线密码体制的OTP身份认证方案

摘要

This paper illustrates the basic principles and advantages of the Elliptic Curve Cryptosystem(ECC), introduced the principle of one-time password authentication technology. Aanalyzed limitations of S/Key one-time password systems. Use of elliptic curve cryptography systems for improving the existing OTP, and proposed two-way authentication scheme of dynamic password base on ECC. Which is comparatively superior to others in calculating speed and storage space.%文章阐述了椭圆曲线密码体制的基本原理及其优点,介绍了OTP认证技术的原理,分析了S/Key一次性口令系统的局限性.利用椭圆曲线密码体制对现有的OTP系统进行改进,提出了一种基于ECC的双向认证的动态口令认证方案,该方案在安全性、运算速度和存储空间方面相对其它身份认证方案具有更高的优势.