一种基于非协调性跳频通信的高效密钥协商方法

An Efficient Method for Secret Key Establishmentbased on Uncoordinated Frequency-Hopping

针对于传统跳频通信必需提前共享密钥的问题,本文提出一种高效安全的密钥协商方法,使得没有提前共享密钥的通信双方能够高效安全地建立一个跳频密钥,从而将半封闭式抗干扰通信完善为全封闭式抗干扰通信。该方法将非协调性跳频通信UFH与基于身份的密钥协商协议相结合,既保证了密钥协商过程的抗干扰性,又保证了其高效性。通过理论分析和仿真实验,较之D-H密钥协商协议,本文提出的协商方法将数据包传输量降低了90%,极大地提高了基于UFH通信模式的密钥协商效率。

In conventional frequency hopping communication, the secret key must he shared between the parties prior to their com- munication. This paper proposes an efficient and secure method of key establishment that enables communicating parties to efficiently and safely establish a frequency-hopping key, without a pre-shared key, thus the semi-closed anti-jamming communication is im- proved to fillly-enclosed anti-jamming communication. In this method, the UFH （ uncoordinated frequency hopping） is combined with lhe identity-based key establishment protocol, thus to ensure the key establishment an anti-jamming and efficient process.Theoretical analysis and simulation imlicates that the proposed method could reduce the number of being-transmitted packets by 90% as compared with the D-H key establishment protocol, and gre, atly improve the efficiency of key establishment based on UFH communication mode.