How to retrieve a Password from the eBook?

How can I get and display, in the eBook, the Password of a specific ID from the eBook's password list? (not from an external list).

I think this is possible as the eBooks that are password protected have the passwords list inside them.

You could copy this file into the source, editing if necessary, and write code to display it

Something like, in JavaScript

var passwordnumber = ParseInt( window.external.ActivGet('{p}') ) ;

then use passwordnumber as a reference into the array of passwords

But just to understand the process eBook checks for the correct password...

Aren't the passwords list stored in the eBook when we create them?