HP 48 Security Programs
The first size listed is the downloaded file size and the second size listed is the size on the calculator.
There are 36 files totaling 869KB in this category.
|CodeLock 1.3 (details)
||48 ENG 4KB/2KB|
|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.|
|By Todd Eckrich.
|Crypto 1.0 (details)
||49/50 48 ENG FRA 51KB/20KB|
|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+.|
|By Rémi Janelle.
||48 FRA 5KB/5KB|
|Several encryption programs.|
|Enigma 1.0 (details)
||48 ENG 292KB/2KB|
|A faithful emulation of the German Enigma cipher machine. Does both three- and four-rotor variants. Written in System RPL.|
|By Kiyoshi Akima.
|HP Lock 3.1 (details)
||48 ENG 7KB/2KB|
|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.|
|By Ludvik Krulik.
||48 ENG 3KB/2KB|
|Requires a preset password to be entered for the calculator to warmstart.|
|Sound Lock 1.2 (details)
||48 ENG 9KB/12KB|
|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.|
|By Silvo Srpcic (HPWebster).
|Tiny Encryption Algorithm 1.0 (details)
||49/50 48 ENG 4KB/1KB|
|Implementation of TEA and TDA for encryption and decryption, respectively. You may only encrypt strings and they should be of length = 0 (mod 8). If the string isn't, it will be expanded with null characters. The key has to be exactly 16 characters (128 bits). It will not be expanded if there are missing characters (just add spaces).|
|By Daniel Lidström.
|WipeMem 1.0 (details)
||48 ENG 3KB/1KB|
|Security enhancement program. Wipes off any sensitive information from calculator memory which may be left there by some security application (MD5LIB for example).|
|By Robert Tiismus.
Part of the HP Calculator Archive,
Copyright 1997-2017 Eric Rechlin.