From rstewart@demon.co.uk Mon Jun 03 13:35:18 1996 Path: ashpoly!cascade!brgate!saturno!demon!rstewart From: rstewart@demon.co.uk (Rodrigo Stewart) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun03.133518.9502@demon.co.uk> Date: Mon, 03 Jun 1996 13:35:18 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Rodrigo Stewart | rstewart@demon.co.uk PGP Key fingerprint: EBA7 2399 0232 2DE8 "Keep the channels open." From vhernandez@mit.edu Wed Jun 05 16:14:18 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!mit!vhernandez From: vhernandez@mit.edu (Valeria Hernández) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun05.161418.4208@mit.edu> Date: Wed, 05 Jun 1996 16:14:18 GMT References: <1996Jun03.133518.9502@demon.co.uk> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jun03.133518.9502@demon.co.uk>, rstewart@demon.co.uk (Rodrigo Stewart) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- === Valeria Hernández === Dept of Electrical Engineering, Massachusetts Institute of Technology "5 sigma is a discovery. 7 is a question." From tmuller@illinois.edu Fri Jun 07 08:34:18 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!tmuller From: tmuller@illinois.edu (Tyler Müller) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun07.083418.2453@illinois.edu> Date: Fri, 07 Jun 1996 08:34:18 GMT References: <1996Jun03.133518.9502@demon.co.uk> <1996Jun05.161418.4208@mit.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Jun05.161418.4208@mit.edu>, vhernandez@mit.edu (Valeria Hernández) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- === Tyler Müller === Dept of Electrical Engineering, University of Illinois Urbana-Champaign "Hold for relay." From jmacdonald@uni-hamburg.de Fri Jun 07 19:56:18 1996 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!jmacdonald From: jmacdonald@uni-hamburg.de (Jens MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun07.195618.9502@uni-hamburg.de> Date: Fri, 07 Jun 1996 19:56:18 GMT References: <1996Jun03.133518.9502@demon.co.uk> <1996Jun05.161418.4208@mit.edu> <1996Jun07.083418.2453@illinois.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jun07.083418.2453@illinois.edu>, tmuller@illinois.edu (Tyler Müller) 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! -- === Jens MacDonald === Dept of Electrical Engineering, Universität Hamburg Fachbereich Informatik "Hardware is temporary. The signal survives." From msantos@hanse.de Sat Jun 08 00:06:18 1996 Path: ashpoly!cascade!transat!ukc!fennimore!hanse!msantos From: msantos@hanse.de (Mateo Santos) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun08.000618.5588@hanse.de> Date: Sat, 08 Jun 1996 00:06:18 GMT References: <1996Jun03.133518.9502@demon.co.uk> <1996Jun05.161418.4208@mit.edu> <1996Jun07.083418.2453@illinois.edu> <1996Jun07.195618.9502@uni-hamburg.de> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Jun07.195618.9502@uni-hamburg.de>, jmacdonald@uni-hamburg.de (Jens MacDonald) 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! PGP Public key available via finger or upon request. -- Mateo Santos Tape trading list upon request. SASE required for international mail.