A Hybrid Key Generation and a Verification Scheme Dataset

By introducing high randomness with reduced computational cost, physical layer (PHY) key generation is one of the candidate tools which can be used for the security of the Internet of Things (IoT) applications. Non-identical secret keys are one of the main problems of the physical layer (PHY) key generation schemes. In order to address this problem, key verification schemes which are based on information reconciliation are used. In the current key verification techniques, the legitimate nodes reveal some information related to their secret keys in order to eliminate non-identical bits. In this work, by jointly using PHY key generation with an embedded key, we propose a hybrid key generation and key verification scheme, where the revealed information during the key verification process is negligible, and the verified keys are identical. Numerical results and software-defined radio based tests show that the proposed verification scheme achieves the requirements of the Internet of Industrial Things (IIoT) systems.

通过引入高随机性并降低计算开销，物理层（PHY）密钥生成是可用于物联网（Internet of Things，IoT）应用安全防护的候选工具之一。密钥不匹配是物理层（PHY）密钥生成方案面临的主要问题之一。为解决该问题，现有研究多采用基于信息协调的密钥验证方案。在现有的密钥验证技术中，合法通信节点需披露部分与自身秘密密钥相关的信息，以剔除不匹配的比特位。本文提出一种融合物理层密钥生成与嵌入式密钥的混合密钥生成及验证方案，该方案在密钥验证过程中披露的信息可忽略不计，且验证后的密钥完全匹配。数值结果与基于软件定义无线电（software-defined radio）的测试表明，所提验证方案可满足工业物联网（Internet of Industrial Things，IIoT）系统的安全需求。