| Locks your HP 48 with password to prevent unauthorized access. While HP 48 is locked, it handles activated alarms, ON+XX key combinations, reset through a hole under the rubber foot and even 'Recover Memory?' + [YES] situations (if you manage to cause one) - as long as your calculator is locked and HPLOCK is in its memory, the calculator will remain locked. It also enables you to encrypt and store away HOME with sub directories before lending your HP 48, and has a user customizable display for password entry. |
Protects your calculator while you are absent by pulsing the IR LED and checking the keyboard for unauthorized use.
Protects your HP with a password.
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This library for preventing unauthorized entry into your 48G series calculator is based on the CODELOCK Library written by Scotty Thompson for the 48S series. The library will also set the flags to the user's preferences upon a system restart.
Password-protects individual variables, encrypting their contents until the access code is entered.
This software is designed to encrypt and decrypt a text file with a 128-bit secret code. Written in assembly language and User RPL for the 48S/G and 49G/G+.
A faithful emulation of the German Enigma cipher machine. Does both three- and four-rotor variants. Written in System RPL.
Yet another password protection library, requiring the password to entered before the calculator can be turned on or warmstarted.
Another "lock" program to password-protect the HP 48. Incompatible with Java. Becomes library 1616.
SHA256 hash code implementation in User RPL for HP48G with documentation and listing. Calculation of SHA256 for short string takes on real device about 80 sec.
This is a protection program for the 48G(X), with digital sound! Similar to DigiPass by HPManiac (uses his sound clips), but this one is stable and can't be broken even with the reset hole. A library with option for changing passwords.