I need to encrypt the data collected from the sensor on the Arduino Uno board and transmit it to the ESP to send it to the web for decryption using the AES-128 algorithm in CBC mode. However, I couldn't find an AES-128 library that supports CBC mode. Can anyone help me with this? Thanks so much."
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First hit on a web search for "aes-128-cbc arduino":
Easy-to-use cross-platform AES implementation (128-bit CBC) for low-memory conditions
Sorry boss, I'm new to using the account so I still lack understanding.
Thank boss.