Michael, On Sun, 24 Sep 2006 18:22:47 -0500, M Graff wrote: > To trained cryptographers, you need true random and/or true unpredictable state. But wouldn't that mean that it couldn't be decrypted by the intended recipient? Surely what you actually need is something that is unpredictable without some known value, and such known value must be infeasible (impossible?) to determine solely from the encrypted data? Cheers, Howard Winter St.Albans, England -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist