Is there any updated doc for implementing AES-GCM decryption ? I'm getting a weird error : The specified nonce is not a valid size for this algorithm. (Parameter 'nonce')
Looks like the size of the iv is incorrect for the algorithm but im using the full length of the vector received.
Which documentation are you using at the moment?
https://developers.facebook.com/docs/whatsapp/flows/guides/implementingyourflowendpoint#request-decryption-and-encryption
That one
Which language are you implementing it in, and are you using any of the code samples (found on the same page you linked)?
Im using c# Netcore 6.0 taking the Java example as base