1997-01-21 - Re: GSM crypto upgrade? (was Re: Newt’s phone calls)

Header Data

From: Liz Taylor <liz@nym.alias.net>
To: cypherpunks@toad.com
Message Hash: 21212eb172a694608d9a039de80f6eccc4ef3bef9f710d6d4f4d66d1abff0c25
Message ID: <199701210525.VAA29113@toad.com>
Reply To: N/A
UTC Datetime: 1997-01-21 05:25:33 UTC
Raw Date: Mon, 20 Jan 1997 21:25:33 -0800 (PST)

Raw message

From: Liz Taylor <liz@nym.alias.net>
Date: Mon, 20 Jan 1997 21:25:33 -0800 (PST)
To: cypherpunks@toad.com
Subject: Re: GSM crypto upgrade? (was Re: Newt's phone calls)
Message-ID: <199701210525.VAA29113@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


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?






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