How can I decrypt the Password Manager Pro database password?

The database password in `database_params.conf` is encrypted using a fixed key `@dv3n7n3tP@55Tri*` stored in `PMPDBPasswordGenerator.class`. The decryption algorithm is in `PMPEncryptDecryptImpl.class` inside `AdventNetPassTrix.jar`. You can write a decryption program based on that class; a reference implementation is available online (see the article's section on password cracking). Decrypting the example password yields `Eq5XZiQpHv`.