frantz@netcom.com (Bill Frantz) wrote:

The box has a 3 or 4 digit display which displays "something" about the 3DES key, where "something" is some of the bits, or a hash, or ... With 3 decimal digits, a MIM attacker has a 999 out of 1000 chance of getting caught.

Not true. It will take a MIM machine less than a tenth of a second to come up with a 3DES key that will have the same three digit hash. Remember the attack found about Clipper's LEAF hash, which was only 16 bits long?