Reads the power meter (every 10 sec.) de-crypt and publish to the MQTT server

implementing a protected communication platform between 2 FPGA's. Data is entered through a keyboard-FPGA interface then the data is encrypted using AES encryption and sent to the second FPGA where the decryption occurs if the decryption key is given and the data is displayed using an FPGA-LCD interface using VHDL scripts

This is a modified version of the AES-128 CBC encryption algorithm. In this custom implementation, encryption and decryption are possible without requiring an Initialization Vector (IV). Instead, the IV is derived from the last and first round key during the encryption and decryption process.