2 - Export wipe device functions
3 - Support K/M suffixes for align payload (new switch?).
5 - Do we need crypt_data_path() - path to data device (if differs)?
6 - Resync ETA time is not accurate, calculate it better (last minute window?).
7 - Extend existing LUKS header to use another KDF? (https://password-hashing.net/)
8 - Fix all crazy automake warnings (or switch to Cmake).