Crippin was designed to protect confidential files (text documents, spreadsheets, graphics, photographs, multimedia, etc.) in case a Pocket PC is lost or stolen.

It’s been designed to be:

• Quick-and-easy to use
• Small (minimal executable size)
• Miserly (with respect to storage required both during and after encryption)
• Secure (using 128-bit RSA encryption, where available, and wiping both passwords and unencrypted data after use)

Crippin is compatible with all versions of the Pocket PC and Windows Mobile operating system and hardware, whether based on ARM, MIPS, SH3, or XScale processors (please let me know if you find a platform on which it doesn’t work).

It doesn’t require .NET, Visual Basic, or MFC libraries - the only files it adds to the Windows system directory are shortcuts and a help file. It’s small and efficient and won’t put a strain on your Pocket PC’s resources.

Most Crippin-encrypted files are less than half the size of the originals, so it can be used purely for compression too. If you only want to use it for compression, just leave all the password fields blank.

With Crippin, you only need to type a password once in order to open an encrypted file, edit it and re-encrypt it. You do have to remember to close the application and re-encrypt the file once you’ve edited it, but that only takes a few taps of the screen so is not too onerous.