It is important to store user passwords in a safe and secured manner in a computer system. One of the ways to have safe and secure password is to encrypt passwords before storing them. Encryption conceals information through code or cipher. There are many methods of encrypting data, each has its own set of characteristics. One of the commonly used encryption algorithm is DES (Data Encryption Standard), which is a two-way encryption algorithm (you can code and then decode a message, given the right keys), to encrypt your passwords.
In Business Process Server, the passwords stored in the files or in the database are in encrypted format.