基于混沌映射的密钥预分配方案

Chaos Mapping-based Key Pre-distribution Scheme

文中提出一种新的无线传感器网络密钥预分配方案——基于混沌映射的密钥预分配方案CMKP(Chaos Mapping based Key Pre-distribution)。CMKP方案利用整数混沌映射产生具有良好随机性和自相关性能的混沌序列形成密钥池,其传感节点只需存储密钥池中部分密钥的密钥标识ID,改进了节点会话密钥计算方法。性能分析结果表明:在不增加通信开销的同时CMKP方案能够提高无线传感器网络的连通概率和安全性能。

A novel key pre-distribution scheme for Wireless Sensor Networks （WSNs）—CMKP（Chaos Mapping based Key Pre-distribution） is proposed.In CMKP,the integer chaos mapping is introduced to generate the chaos sequence with good randomness and self-correlation property.The sensor nodes only need to keep the ID number of some keys in the key pool.In addition,CMKP improves the method for computing the session key.The performance analysis indicates that without increasing the communication overhead,CMKP not only raises the connection probability but also enhances the security of WSNs.