Authentication provides a mechanism to store a list of challenge/response phrases with each password.  This is often required when logging on to high security web sites such as Internet banking.  Some web sites require you to setup a series of 'challenge' questions and 'response' answers when you open an account.

You can create as many challenge/response phrases as you need by clicking 'New'.  Clicking the 'Copy' button will copy the response phrase to the Clipboard.