On Jan 19, 2004, at 12:40 AM, Dave Hedges wrote: >> IC- The point of the story was someone getting through airport >> security with a >> IC- forged boarding pass. > > I would suggest that could happen at a great many airports. The > printing of boarding cards is hardly rocket science and no special > measures are used, as in bank notes, to avoid them being forged. Actually, the physical document of the boarding pass is meaningless. On a number of airlines you are permitted to print your own, on your own printer. Possibly this is limited to domestic flights in the U.S. The embedded authentication measure is something like a cryptographically-generated serial number (in a bar code for scanning) which cannot easily be guessed or spoofed. -- Michael C. Berch mcb@xxxxxxxxxxxxxx