1996-06-06 - Re: Cost of brute force decryption

Header Data

From: “Perry E. Metzger” <perry@piermont.com>
To: “Bruce M.” <brucem@wichita.fn.net>
Message Hash: 2d284aa339f122bc78b3926e1295870f74d76f94a138c86b066b2568b66caa88
Message ID: <199606051632.MAA12216@jekyll.piermont.com>
Reply To: <Pine.BSI.3.91.960605092010.23845A-100000@wichita.fn.net>
UTC Datetime: 1996-06-06 02:55:13 UTC
Raw Date: Thu, 6 Jun 1996 10:55:13 +0800

Raw message

From: "Perry E. Metzger" <perry@piermont.com>
Date: Thu, 6 Jun 1996 10:55:13 +0800
To: "Bruce M." <brucem@wichita.fn.net>
Subject: Re: Cost of brute force decryption
In-Reply-To: <Pine.BSI.3.91.960605092010.23845A-100000@wichita.fn.net>
Message-ID: <199606051632.MAA12216@jekyll.piermont.com>
MIME-Version: 1.0
Content-Type: text/plain



Everyone seems to be arguing about whether brute force decryption of
RC-40 costs "tens of thousands" or not.

The answer is it costs pennies. Literally.

See the "Big Seven" paper on why key lengths of over 80 bits are
required to read the details.

ftp://ftp.research.att.com/dist/mab/keylength.txt

Perry

Thread

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• 1996-06-05 (Wed, 5 Jun 1996 18:20:52 +0800) - Re: Cost of brute force decryption - “Deranged Mutant” <WlkngOwl@unix.asb.com>
  • 1996-06-06 (Thu, 6 Jun 1996 08:21:53 +0800) - Re: Cost of brute force decryption - “Bruce M.” <brucem@wichita.fn.net>
    • 1996-06-06 (Thu, 6 Jun 1996 10:55:13 +0800) - Re: Cost of brute force decryption - “Perry E. Metzger” <perry@piermont.com>
  • 1996-06-06 (Thu, 6 Jun 1996 16:56:14 +0800) - Re: Cost of brute force decryption - Steve Reid <root@edmweb.com>