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EttienneL5 / ESP32-AES-256-Encryption

This is a working example of the AES256 encryption method
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ESP32 AES 256 CBC PKCS5/7 Encryption

This is a working example of the AES256 encryption method

When i was looking into creating a device that required aes256 cbc i did not think that it would be so difficult to find a working example. This is my working example to make sure someone out there can use it and not struggle as I did.

I also wrote a new Base64 "Library" (just not sure how to convert it into an actual library but maybe one day) as the ones i found did not encode the data correctly.

The code includes:

  1. Input from serial

  2. PKCS5/7 padding

  3. AES256 CBC Encryption

  4. Base64 Encoding

  5. Base64 Decode

  6. AES256 CBC Decryption

  7. Display original input

Please not that this example takes a string but converts it into a byte array (refferenced byte array)

For the people that likes challenges, the floor is yours to optimize and create your own rainbow of new issues