The fact that the hole is on the bottom pin is not important. What is important is that the hole at the change-key height does not need to be at the same angular position as the hole at the master-key height.
It's hard to draw ascii art to show what I mean, but because the twist holes are at a particular height when the key is inserted, you can certainly see how at different heights the holes can be in different locations. -derek Matt Blaze <[EMAIL PROTECTED]> writes: > Actually even in their Biaxial design the sidebar hole is always on the > bottom pin, and so the master shares the angle with the change keys. > > -matt > > > There is, however, a newer medeco design that uses a drill-hole > > instead of a groove. With that design you can have the pin twist be > > different at different pin-heights (by putting the drill-hole at a > > different twist-angle). I don't think this attack would work quite > > as easily on this design. > > > > -derek > -- Derek Atkins Computer and Internet Security Consultant [EMAIL PROTECTED] www.ihtfp.com --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]