From mgarcia@mit.edu Sat Jul 06 14:16:41 1996
Path: ashpoly!cascade!mxgate!coyoacan!mit!mgarcia
From: mgarcia@mit.edu (Mei García)
Newsgroups: comp.sys.m68k
Subject: Question: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996Jul06.141641.6270@mit.edu>
Date: Sat, 06 Jul 1996 14:16:41 GMT
Organization: Massachusetts Institute of Technology
NNTP-Posting-Host: mit.edu
X-Newsreader: WinVN 0.99.5
Lines: 11

Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14.

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

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

-- 
=== Mei García ===
Dept of Electrical Engineering, Massachusetts Institute of Technology
"A soul is not exclusive to biology."

From rsokolov@delphi.com Sat Jul 06 18:25:41 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!delphi!rsokolov
From: rsokolov@delphi.com (Raj Sokolov)
Newsgroups: comp.sys.m68k
Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996Jul06.182541.2402@delphi.com>
Date: Sat, 06 Jul 1996 18:25:41 GMT
References: <1996Jul06.141641.6270@mit.edu>
Organization: Delphi Internet Services
NNTP-Posting-Host: delphi.com
X-Newsreader: NewsWatcher 2.0b24
Lines: 9

In article <1996Jul06.141641.6270@mit.edu>, mgarcia@mit.edu (Mei García) writes:
> Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14.

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

-- 
Raj Sokolov
Opinions expressed are solely my own and not those of Delphi Internet Services.
------------------------------------------------------------