SyncCryptLegacy.symmetricDecrypt() failed, gcm: tag doesn't match

[JoshuaAway]

Hey there,

I hope you're doing well. I'm encountering an issue with SyncCryptLegacy.symmetricDecrypt() when decrypting some files. The code throws a "gcm: tag doesn't match" error. This only happens on a few files on my account, not all.

If you have a minute, could we reach out via email or Telegram? I don't mind compensating you for your help, your repo has already been super helpful.

Best, Josh

[k-aito]

Hello @JoshuaAway

I didn't use my code for a long time, I vaguely remember that the decrypting in chunk was tricky but the method to download a specified ID and decrypt it was working pretty well.

I will take a look later to see if it's still working. About compensating, I don't mind setting up a kind of donation think through GitHub if you really want to thank me, but it's more a hobby project that doesn't have a real finishing touch, so I don't think it must be compensating.

Anyway, I come back to you after my test with a simple download and decryption.

[k-aito]

@JoshuaAway

Little update, the code must still work, but it looks like the node version I have right now got an issue because my Buffer(data, "base64") is getting an encoding issue. But my test with a python version of my code that I didn't push yet because I wanted to finish it properly is still downloading the files and decrypting them.

Can you try to just use the "download_decrypt" method just to see if it's working and if not I will see to make a new repo for the python version even if it's not finished yet.