> The sad truth is: No form of electronic communication is secure. > The best you can do is slow the crackers down. Properly implemented [tm] 'one time pad' allows a very large amount of slowing down. Classic OTP failures are generally due to reuse or multiple parallel use (Verona?) , or bad 'pad' security. OTP not appropriate for currently discussed system. Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .