From mmacdonald@ox.ac.uk Tue May 21 10:14:47 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!ox!mmacdonald
From: mmacdonald@ox.ac.uk (Marta MacDonald)
Newsgroups: comp.sys.m68k
Subject: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996May21.101447.3120@ox.ac.uk>
Date: Tue, 21 May 1996 10:14:47 GMT
Organization: Oxford University Computing Laboratory
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Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board.

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.

Did Marcus take the decryption EPROM with him when he left the lab?

-- 
Marta MacDonald | mmacdonald@ox.ac.uk
PGP Key fingerprint: 15B8 2F0A 2CF6 24F6
"Keep the channels open."

From holiveira@ox.ac.uk Wed May 22 16:58:47 1996
Path: ashpoly!cascade!bigsur!ox!holiveira
From: holiveira@ox.ac.uk (Hana Oliveira)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996May22.165847.2911@ox.ac.uk>
Date: Wed, 22 May 1996 16:58:47 GMT
References: <1996May21.101447.3120@ox.ac.uk>
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In article <1996May21.101447.3120@ox.ac.uk>, mmacdonald@ox.ac.uk (Marta MacDonald) writes:
> Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board.

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

-- 
Hana Oliveira | holiveira@ox.ac.uk
PGP Key fingerprint: 4054 6D66 8F08 C29F
"Keep the channels open."

From noliveira@stanford.edu Fri May 24 02:20:47 1996
Path: ashpoly!cascade!transat!eunet-fr!teletel!stanford!noliveira
From: noliveira@stanford.edu (Nadine Oliveira)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996May24.022047.9564@stanford.edu>
Date: Fri, 24 May 1996 02:20:47 GMT
References: <1996May21.101447.3120@ox.ac.uk> <1996May22.165847.2911@ox.ac.uk>
Organization: Stanford University Computer Systems Lab
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In article <1996May22.165847.2911@ox.ac.uk>, holiveira@ox.ac.uk (Hana Oliveira) writes:
> That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys.

Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him.

-- 
Nadine Oliveira
Tape trading list upon request. SASE required for international mail.