Security algorithm of Internet of Things based on ZigBee protocol

To study the application of ZigBee protocol in the security algorithm of Internet of Things, the relevant development status at home and abroad is firstly summarized and ZigBee technology is introduced in detail. Then, the principle of AES-128 algorithm is analyzed, and the steps of decryption algorithm are adjusted, so that the decryption algorithm is symmetric in structure and encryption algorithm. In addition, the encryption and decryption algorithm of AES-128 is implemented by using C language. Based on the characteristics of simplicity and low cost of ZigBee technology, the two optimization algorithms are designed and implemented from the analysis of simplicity and efficiency based on the performances of security algorithm. The analysis and test results show that the two optimization algorithms are better than the UN optimized algorithm in terms of speed and complexity. To sum up, in the result comparison, it is found that the speed and complexity of the round operation optimization algorithm is better than that of the column obfuscation optimization algorithm.