- 2PVHIKMA
- 3T6XF5DZ

2PVHIKMA is a secret key for machines. It has no passphrase, so
computer programs can use it automatically.

3T6XF5DZ is a secret key for humans. It is protected by a passphrase.
The passphrase should be saved in a password manager or written on paper,
and not kept in the same disk as the key.