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1993-10-12 - Re: Breaking DES

Header Data

From: jet@netcom.com (J. Eric Townsend)
To: pmetzger@lehman.com
Message Hash: 4e257f1d1bfca4f0696f06a22e343fd9dcef16cf03d813267c8a4262f67a22fd
Message ID: <9310120238.AA25432@netcom4.netcom.com>
Reply To: <9310120225.AA19589@snark.lehman.com>
UTC Datetime: 1993-10-12 02:39:50 UTC
Raw Date: Mon, 11 Oct 93 19:39:50 PDT

Raw message

From: jet@netcom.com (J. Eric Townsend)
Date: Mon, 11 Oct 93 19:39:50 PDT
To: pmetzger@lehman.com
Subject: Re: Breaking DES
In-Reply-To: <9310120225.AA19589@snark.lehman.com>
Message-ID: <9310120238.AA25432@netcom4.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain


"Perry E. Metzger" writes:
 > My bogometer just triggered, so I decided to check your math.

As I said, I was off by a few orders of magnitude or so.
 > 
 > > (Cray C90, 1GW main memory, .5TB drive storage of various types, 9
 > > tape silos)
 > Gee, half a terrabyte. Thats 16,000 times less than you claimed.

The .5TB is *local* storage.  The 9 tape silos hold a couple of
terabytes, uncompressed.

 > what you claimed, and its over a million times less storage than you
 > would need, in *RAM*, for the proposed task.

Wouldn't need to be in RAM.  Would interleave the search in some banks
with loads of data into other banks.  Stream the damn thing.

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