Mona is a desktop port of an MS-DOS program by Plastic Swimmer Productions. It probably violates their copyright, but so what.

PSC was written to take the tedium out of manually editing the Users and Choices files belonging to POPStar. Dead easy to use. Updated January 2003 (bugfixes)

PhotoSteg will disguise any type of data within pre-drawn RISC OS 24- or 32-bit sprites. It is intended as a security tool- the sprite-and-hidden-data behaves like an ordinary sprite and, to all intents and purposes, is indistinguishable from the original image when viewed. The sprites can be converted to other lossless image formats, as normal.

The media has taken a great interest in steganography in recent weeks, apparently as it is Mr Bin Laden's preferred method of communication. You ought to know that the full source code to PhotoSteg is included in the distribution archive. With this knowledge it should be a trivial exercise for government snoops to decode your steganographic images; concurrent Blowfish encoding (an option in PhotoSteg) ought to be a little more resistant to attack.

It is now a license condition that you will not use PhotoSteg for terrorist communiqués. Like I'm going to be able to tell. However I find it unlikely that RISC OS is the operating system of choice in Afghanistan.

Here is an example of a PhotoSteg image. To get at the hidden data, save the PNG from your browser, convert it to a sprite using Creator, then run it through PhotoSteg following the instructions carefully. The encryption pass phrase is 'Foreign Office'. Let me know who Mr Kerr's colleague is!

If you find any faults/bugs, please let me know. My PGP Public key can be downloaded below.

Unfortunately, older versions of the PC card suffer from the millennium bug; the software provided does not report the correct century to DOS, it gets confused and sets the clock back to 1984.

The bug can, however, be overcome by using DOS's DATE command to reset the clock when DOS starts up, but this is a pain in the ass.

Digestive will process a mailing list digest, such as those generated by Listproc (Unix) or Listserv™ (L-Soft), or RISC OS's !MailList, and mark the divisions between each constituent e-mail, such that when it is re-fed into Newsbase it can be debatched into individual messages.