椭圆曲线密码体制中密钥协商方案改进的研究

Reserach of Improved Key Agreement Scheme Based on Elliptic Curve Cryptography

椭圆曲线加密机制(ECC)作为加密强度最高的一种公钥加密算法被广泛应用于各种通信领域。在椭圆曲线密码的基础上实现的密钥协商方案ECDH、ECMQV存在着易受攻击和计算复杂等问题,提出了对密钥协商协议的改进方案,并对改进的方案进行了分析。

Elliptic Curve Cryptography is widely used in many areas for its high efficiency. There are two well known key agreement schemes ECDH and ECMQV. However , they are vulnerable to be attacked and need large amount of calculation.The improved key agreement scheme aim to solve these problems exited in the two schemes.The correctness is proved also.