适用于天地一体化网络的无证书密钥协商协议

为了保证天地一体化网络中用户信息的传输安全，改进传统方案的高时延等问题，本文提出一种轻量级的无证书密钥协商方案。首先，本文分析无证书密钥协商协议系统模型，针对天地一体化网络的特点提出协议需要满足双向认证、抗重放、完整性等安全需求。其次，本文选择一种轻量级的无证书加密方案，在此基础上提出密钥协商协议，满足天地一体化网络的资源和安全要求。最终，本文对提出的密钥协商协议进行BAN（Burrow-Adadi-Needham）逻辑安全性分析，并结合软件对协议性能仿真进行比较，结果表明：该方案在满足网络安全性需求的同时实现高效快速的协商。

A Certificateless Key Agreement Protocol for the Integrated Network of Space and Ground

In order to ensure the communication security of users and improve the high latency of traditional solutions in the integrated network of space and ground. In this paper, we propose a lightweight certificateless key agreement scheme. Firstly, we analyze the certificateless key agreement protocol system model. Based on the characteristics of the integrated network of space and ground, it is proposed that the protocol needs to satisfy some security requirements such as two-way authentication, anti-replay, and integrity. Then, we choose a lightweight certificateless encryption scheme. Base on the encryption scheme, we propose a key agreement protocol to meet the resource and security requirements of the integrated network of space and earth. Finally, we prove the proposed key agreement protocol security conducted on the BAN logical analysis, and compare the protocol performance with software simulation. The results show that the solution not only meets the network security requirements, but also provides fast and efficient negotiation.