Monte Goulding wrote:
> If this is the same project I think it is then she can't use
> encryption because she can't use any externals... nothing but
> the executable is allowed...

While not nearly as secure as Blowfish (not by a long shot), this modest encryption script can at least slow down hacks, and as a script is fully embeddable:
<http://livecodejournal.com/tutorials/handy-handlers-005.html>

I wouldn't recommend it for data requiring really strong security, but the sort of person able to crack it is likely able to do a memory dump, so it's probably no less secure than limiting stacks to RAM.

--
 Richard Gaskin
 Fourth World
 LiveCode training and consulting: http://www.fourthworld.com
 Webzine for LiveCode developers: http://www.LiveCodeJournal.com
 Follow me on Twitter:  http://twitter.com/FourthWorldSys


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