基于身份的多方密钥协商方案的研究

Identity-based multi-party key agreement scheme

针对目前基于身份的密钥协商方案大多适用于两方或三方通信、无法满足多方同时通信需求的问题,提出了一种基于身份的多方密钥协商方案.该方案通过使用数字签名,以增加通信实体间相互认证的功能.效率及安全性分析表明,该方案无须进行配对计算,具有较高的效率,而且安全性极高.

Identity-based key agreement schemes are mostly oriented two-party or three at present.It cannot satisfy the needs of modern communication about multiple party at the same time.An identity-based multi-party key agreement scheme was proposed which can mutually authenticate by using the digital signature to increase communication entity authentication.Analysis showed that the scheme is not required by pairing computation,has high efficiency and safety.