From hlarsson@earthlink.net Thu Mar 23 18:41:11 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!hlarsson From: hlarsson@earthlink.net (Heather Larsson) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar23.184111.9982@earthlink.net> Date: Thu, 23 Mar 1995 18:41:11 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] 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. Did Marcus take the decryption EPROM with him when he left the lab? -- Heather Larsson US Robotics Courier V.34 @ 9600 Telebit bps "There are 14 nodes and only 10 countries. Count again." From elopez@ox.ac.uk Fri Mar 24 22:49:11 1995 Path: ashpoly!cascade!transat!ukc!fennimore!ox!elopez From: elopez@ox.ac.uk (Elaine López) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar24.224911.1971@ox.ac.uk> Date: Fri, 24 Mar 1995 22:49:11 GMT References: <1995Mar23.184111.9982@earthlink.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Mar23.184111.9982@earthlink.net>, hlarsson@earthlink.net (Heather Larsson) writes: > 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. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Elaine López Tape trading list upon request. SASE required for international mail. From mpopov@inria.fr Sun Mar 26 03:38:11 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!inria!mpopov From: mpopov@inria.fr (Marta Popov) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar26.033811.6866@inria.fr> Date: Sun, 26 Mar 1995 03:38:11 GMT References: <1995Mar23.184111.9982@earthlink.net> <1995Mar24.224911.1971@ox.ac.uk> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar24.224911.1971@ox.ac.uk>, elopez@ox.ac.uk (Elaine López) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Marta Popov Opinions expressed are solely my own and not those of INRIA Rocquencourt. ------------------------------------------------------------ From afischer@uu.net Mon Mar 27 02:47:11 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!uu!afischer From: afischer@uu.net (Anja Fischer) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar27.024711.5132@uu.net> Date: Mon, 27 Mar 1995 02:47:11 GMT References: <1995Mar23.184111.9982@earthlink.net> <1995Mar24.224911.1971@ox.ac.uk> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar24.224911.1971@ox.ac.uk>, elopez@ox.ac.uk (Elaine López) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Anja Fischer === Dept of Electrical Engineering, UUNET Technologies, Falls Church VA "We don't sign stars. We build them." From jmuller@u-tokyo.ac.jp Tue Mar 28 10:20:11 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!u-tokyo!jmuller From: jmuller@u-tokyo.ac.jp (Ji-woo Müller) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar28.102011.8387@u-tokyo.ac.jp> Date: Tue, 28 Mar 1995 10:20:11 GMT References: <1995Mar23.184111.9982@earthlink.net> <1995Mar24.224911.1971@ox.ac.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Mar24.224911.1971@ox.ac.uk>, elopez@ox.ac.uk (Elaine López) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Ji-woo Müller | jmuller@u-tokyo.ac.jp PGP Key fingerprint: C19D 76A8 1B56 B321 "Keep the channels open."