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Re: GSM crypto upgrade? (was Re: Newt's phone calls)
[email protected] (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?