
				HPCRACK

		Password recovery for HP200LX files


This program finds the password in files created by Database, Notes, Phonebook,
Appointments and World Time (*.gdb, *.ndb, *.pdb, *.adb and *.wdb files) on
the HP200LX palmtop computer.

This software comes "as is"; no warranty etcetera.
The program should be fairly save, however, as it does not change files in
any way.

This program is meant to show you that the password protection for files that
the HP200LX offers is not sufficient to protect highly sensitive data. (I
don't know about the 100LX nor the 95LX, but that is probably the same; I
would be interested to learn...)

The program takes advantage of the fact that the password to a
password-protected file is saved in the file itself, protected in a simple
(insufficient) way. See the source code for more details.

The program does not work with password-protected Memo files nor with Pocket
Quicken files. They seem to use a different way of storing the password.
(If anyone ever finds out: please let me know.)

Usage: make a backup of the file for which you cannot remember the password
anymore (this is probably not necessary, but it cannot harm anyway). Then
type on the command prompt (under MS-DOS):

	hpcrack <filename>

and the password should be displayed on the screen.

Comments are welcome.

Have fun!

	Jan Brands
	jrbrands@win.tue.nl
