Securing IoT data at physical layer by using RC6 encryption technique
A. M. Ashraf, Wael Mohamed Elmedany · IET conference proceedings. · 2022
The Internet of Things is the most popular technology in today's society. The domain that encompasses the fields in which IoT is applied is extremely large. Security, on the other hand, is a major stumbling block for IoT. Machine-to-machine communication is at the core of the Internet of Things. A machine collects data, analyzes it, and then instructs another machine to take action as a result of the analysis. The data that these machines collect can be sensitive and private. As a result, security at each layer of the IoT is essential, as a security breach might have serious effects. For example, if the security of the very first layer, the physical layer, is hacked, the entire idea of IoT puts the privacy of the people or organizations whose data is being collected at risk. So, in order to secure the physical layer of IoT, this study suggests various realistic, low-cost, and security-enhancing approaches. Data encryption is essential to protect security of data by using a secret key to declare it unreadable and unmodified. The current study concentrates the challenges on encryption in general. To achieve this objective, a secure technique is presented at the physical layer, which provides cryptographic properties for usage in tandem with an adaptive RC6 encryption/decryption strategy written in VHDL addressing security and performance difficulties. The proposed work appeared to be an appropriate choice for practical implementation for secure data transmission at physical layer. The results of experiments verified that the proposed method is accurate. Furthermore, the ciphertexts generated by the proposed technique succeeded the tests, verifying the ciphertext's unpredictability. The output in the form of cipher text is reversed back for verification to check whether it generates same plain text to check authentication and security of used encryption/decryption technique. Future research to improve the robustness and pervasiveness of IoT-based physical layer security is also discussed.