From mpopov@cam.ac.uk Wed Feb 22 06:28:01 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!mpopov
From: mpopov@cam.ac.uk (Marta Popov)
Newsgroups: comp.sys.m68k
Subject: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Feb22.062801.1583@cam.ac.uk>
Date: Wed, 22 Feb 1995 06:28:01 GMT
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Hardware disassembly report for Motorola hardware hackers.

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.

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

-- 
Marta Popov -- University of Cambridge Computer Laboratory
"Do not worship the copy."

From msouza@earthlink.net Fri Feb 24 02:18:01 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!msouza
From: msouza@earthlink.net (Mei Souza)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Feb24.021801.3711@earthlink.net>
Date: Fri, 24 Feb 1995 02:18:01 GMT
References: <1995Feb22.062801.1583@cam.ac.uk>
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In article <1995Feb22.062801.1583@cam.ac.uk>, mpopov@cam.ac.uk (Marta Popov) writes:
> Hardware disassembly report for Motorola hardware hackers.

If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack!

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
Mei Souza -- EarthLink Network
"Marcus is not one man."

From lvasiliev@mindspring.com Sun Feb 26 02:24:01 1995
Path: ashpoly!cascade!mxgate!coyoacan!mindspring!lvasiliev
From: lvasiliev@mindspring.com (Lisa Vasiliev)
Newsgroups: comp.sys.m68k
Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1995Feb26.022401.5048@mindspring.com>
Date: Sun, 26 Feb 1995 02:24:01 GMT
References: <1995Feb22.062801.1583@cam.ac.uk> <1995Feb24.021801.3711@earthlink.net>
Organization: MindSpring Enterprises
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In article <1995Feb24.021801.3711@earthlink.net>, msouza@earthlink.net (Mei Souza) writes:
> If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack!

If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack!

Unsubscribe me from this list! (Wait, this is Usenet, never mind).

-- 
Lisa Vasiliev
Opinions expressed are solely my own and not those of MindSpring Enterprises.
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