智能计量箱控制器加密通信算法研究

Study on Encrypted Communication Algorithm for Smart Metering-Box Controller

针对智能计量箱的防窃电功能,文中研究了计量箱控制器的加密通信算法,并在加密的基础上制定了特定的通信协议及身份认证方法,其中着重研究了DES对称加密算法,通过密钥协商、对称加密、随机数加密等多种手段,使控制器与每个电子钥匙的通信都采用不同的密钥加密,且每一帧数据在加密后都不相同,链路中传输的数据都是完全随机的,即使被截获也无从破解,最后对加密通信进行了编程实现和结果验证。

For the anti-theft function of smart metering box, the eficrypted communication algorithm for smart metering-box controller is researched, and based on encryption, the special communication protocols and identity authentication methods are developed. The DES symmetric encryption algorithm is emphatically studied. Finally, the encrypted communication is programmed and realized, and the experiment results indicate the correctness and feasibility of the encrypted communication algorithm.