成都理工大学学报（自然科学版）2016，Vol.43Issue(6)：757-761,5.DOI:10.3969/j.issn.1671-9727.2016.06.14
一种基于身份可认证两方密钥协商方案
A two-party key agreement scheme based on authenticated identity
摘要
Abstract
Based on the establishment of shared key through the Diffie-Hellman agreement in terms of the user’s identity information and combined with VBNN-IBS signature thought as a foundation,a two-party key agreement scheme is proposed so as to reduce the computation cost and improve the security.In the scheme,the key generation centre (KGC)uses users’identity information to generate part of the private and public keys for the two parties in communication.The complete private key and public key are composed of users’private key for a long time,and the security is based on elliptic curve discrete logarithm problem.The no-bilinear paring operation is realized only by four times point multiplication operation,one modular operation,and three times hash operations.Meanwhile,the two parties in communication can realize the authentication and key agreement only by communication twice,which improves the efficiency of the key generation.It shows that the scheme possess a lot of safety properties,such as perfect forward secrecy,resisting key leak feinting,known session key communications security,non-key control,and anti-replay attacks capacity,etc.The comparison of performance with security reveals that the scheme has great advantages in terms of safety and efficiency.Therefore,it is suitable for the resource-constrained wireless network communication environment.关键词
签名方案/椭圆曲线/身份认证/密钥协商Key words
signature scheme/elliptic curve/identity authentication/key agreement分类
信息技术与安全科学引用本文复制引用
曹阳,邓方安,陈涛,潘平..一种基于身份可认证两方密钥协商方案[J].成都理工大学学报（自然科学版）,2016,43(6):757-761,5.基金项目
国家自然科学基金项目（21373132）；陕西省教育厅资助项目（16JK1149）。 （）
