基于椭圆曲线的加密密钥交换协议

加密密钥交换协议(EKE)的目的是利用安全性低的口令协商安全性高的密钥,进而利用密钥对以后的通信进行加密或身份认证,从而实现安全通信.基于验证元的EKE是针对服务器泄露攻击问题提出的.本文基于椭圆曲线密码系统的特点,给出了一个基于验证元的3EKE,该协议中,服务器通过口令实现对用户的认证;协议能够抵抗服务器泄露等攻击,...

Encrypted Key Exchange Protocol Based on Elliptic Curve Cryptosystem

Encrypted key exchange protocol's goal is to establish a high secure key used for further encryption and authentication through a low secure password.The objective of verifier-based scheme is to mitigate the amount of damage caused by server compromise.In this paper,we present a verifier-based encrypted key exchange protocol for three parties based on elliptic curve cryptosystem.The following are characteristics:server authenticating the user's identity with password;against server compromise attack,providi...