一个高效的无证书两方认证密钥协商协议

An efficient certificateless authenticated Two-Party key agreement protocol

由于双线性对有高昂的计算代价,无双线性对的密码系统在近年来得到了广泛的关注。各种无双线性对的两方认证密钥协商协议在公钥密码体制(PKC)下被研究。为了克服传统公钥密码体制下复杂的证书管理问题和基于身份的密码体制固有的密钥托管问题,一些无证书认证密钥协商协议被提出。文中提出了一个安全高效的无双线性对的基于无证书的两方认证密钥协商协议,与相关的协议相比,文中的协议具有较低的计算代价。

Due to the high computation cost of bilinear pairings,pairing-free cryptosystems have received widespread attention recently.Various pairing-free two-party key agreement protocols in the context of public key cryptography(PKC) are studied on.To avoid complex certificate management in traditional PKC and key escrow problem in identity-based ones,several certificateless cryptosystems are proposed in this research area.This paper proposed a secure and efficient certificateless pairing-free two-party key agreement protocol.In comparison with related works,the protocol requires less computational cost.