基于二元多项式的短波自组网密钥预分配方案

摘要

HF communication had shortcomings that connectivity rate was low and easy to be intercepted and attacked during the process of transmission.This paper proposed a key pre-distribution scheme based on symmetric bivariate polynomial.The scheme adopted symmetric encryption technology to improve the efficiency of the encryption and decryption of the message.It adopted public key cryptography security system to increase complexity of the session key.It introduced hash function to sign the message to verify its security and integrity.It achieved 1 00%connectivity rate among nodes by clustering the nodes based on the regional division.Experiments results show that the scheme can effectively resist the enemy’s attack and ensure the se-curity of the network communication.%针对短波通信在传输过程中连通率低及容易遭受敌方截获和攻击的缺点，提出一种基于二元多项式的密钥预分配方案。该方案采用对称加密技术保证报文加／解密的效率；运用公钥密码体制复杂性提高会话密钥的安全性；引入hash函数对报文进行签名，验证报文的真实性与完整性；基于区域划分对节点进行分簇，实现节点之间100％的连通率。实验结果表明，该方案能有效抵御敌方的攻击，保证网络的安全通信。