无双线性对的基于无证书的移动IP注册协议

Mobile IP registration protocol in certificateless public key infrastructure without pairing

目前大多数基于无证书的移动IP注册协议需要复杂的双线性对运算,这使得移动IP的注册过程开销较大,效率较低,不利于实时通信。基于无对运算的无证书签名方案,提出了高效安全的移动IP注册协议。由于在注册的过程中省去了复杂的对运算,所以减少了注册时间,提高了注册效率。此外,该协议通过在注册过程中用移动用户的临时身份代替真实身份实现了用户匿名性;通过使用临时随机数Nonce可以抵抗重放攻击。安全性分析的结果表明所提出的协议是高效的、安全的。此外,与同类协议进行的安全和性能比较结果证明在能提供同样高的安全性能级别的协议中,该协议所设计的IP注册过程的时延是最短的。

An efficient and secure mobile IP registration protocol is proposed, which is based on certificateless public key signature scheme without pairing to minimize the registration time. Vser anonymity is achieved via the temporary identity （TID） transmitted by the mobile user, instead of the true identity. Additional replay protection is included by introducing Nonce in the registration message to prevent a possible replay attack. Security analyses demonstrate that the new scheme is both secure and efficient. Numerical experimental results and security performance analyses show that the new scheme outperforms the existing ones regarding the registration time and computational load while improving security.