Does the authentication part actually work?

Thanks!

Yes, I understand that the order in authenticated encryption is encrypt-then-HMAC, and that HMAC tags are produced independently.

Given that for some files HMACs might fail to be verified upon decryption, is there a way to notify the user of failed instances (ideally in a warning summary printed in the GUI, but at least in log files)?

I can see you have a command line interface as well:

Could we force decryption of the un-authenticted files in the read only format for diagnosis (with safe flags, of course)?

Thank you!