From landersson@uu.net Mon Jan 02 09:12:10 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!uu!landersson
From: landersson@uu.net (Lars Andersson)
Newsgroups: comp.sys.m68k
Subject: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jan02.091210.5132@uu.net>
Date: Mon, 02 Jan 1995 09:12:10 GMT
Organization: UUNET Technologies, Falls Church VA
NNTP-Posting-Host: uu.net
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Lines: 11

Hardware disassembly report for Motorola hardware hackers.

Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14.
This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream.

Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet.

-- 
=== Lars Andersson ===
Dept of Electrical Engineering, UUNET Technologies, Falls Church VA
"There are 14 nodes and only 10 countries. Count again."

From agirard@delphi.com Wed Jan 04 00:26:10 1995
Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!agirard
From: agirard@delphi.com (Andrei Girard)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jan04.002610.3483@delphi.com>
Date: Wed, 04 Jan 1995 00:26:10 GMT
References: <1995Jan02.091210.5132@uu.net>
Organization: Delphi Internet Services
NNTP-Posting-Host: delphi.com
X-Newsreader: Netscape 1.1N
Lines: 9

In article <1995Jan02.091210.5132@uu.net>, landersson@uu.net (Lars Andersson) writes:
> Hardware disassembly report for Motorola hardware hackers.

Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984.

-- 
=== Andrei Girard ===
Dept of Electrical Engineering, Delphi Internet Services
"We don't sign stars. We build them."

From vsantos@clari.net Thu Jan 05 20:36:10 1995
Path: ashpoly!cascade!bigsur!clari!vsantos
From: vsantos@clari.net (Valeria Santos)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Jan05.203610.1487@clari.net>
Date: Thu, 05 Jan 1995 20:36:10 GMT
References: <1995Jan02.091210.5132@uu.net> <1995Jan04.002610.3483@delphi.com>
Organization: ClariNet Communications Corp
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X-Newsreader: Netscape 1.1N
Lines: 10

In article <1995Jan04.002610.3483@delphi.com>, agirard@delphi.com (Andrei Girard) writes:
> Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984.

That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys.

Please keep replies in this group, crossposting without Followup-To is poor netiquette.

-- 
Valeria Santos -- ClariNet Communications Corp
"They will send a copy in my place."