gcm-c
5.2 | 1.0
gcmc is software that performs encryption with authentication function.
As a method, it uses AES GCM mode (AES-256-GCM).
In general,
The encryption key (password) is wrong,
The ciphertext is broken (has been tampered with)
in such a case, if it have not done any coresspondance,
decrypting in block-cipher does not return to the original plain text
In such a case, it will be something like