From jrobertson@delphi.com Tue Aug 01 01:15:15 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!delphi!jrobertson From: jrobertson@delphi.com (Jens Robertson) Newsgroups: comp.sys.m68k Subject: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug01.011515.6196@delphi.com> Date: Tue, 01 Aug 1995 01:15:15 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. 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. -- Jens Robertson -- Delphi Internet Services "In theory there is no difference between theory and practice." From hivanov@unam.mx Tue Aug 01 10:38:15 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!hivanov From: hivanov@unam.mx (Hugo Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug01.103815.9375@unam.mx> Date: Tue, 01 Aug 1995 10:38:15 GMT References: <1995Aug01.011515.6196@delphi.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug01.011515.6196@delphi.com>, jrobertson@delphi.com (Jens Robertson) 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. -- Hugo Ivanov "Hardware is temporary. The signal survives." Atari TT030 / SunOS 4.1.4 From hnovak@mindspring.com Thu Aug 03 04:32:15 1995 Path: ashpoly!cascade!transat!ukc!fennimore!mindspring!hnovak From: hnovak@mindspring.com (Hugo Novak) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug03.043215.8664@mindspring.com> Date: Thu, 03 Aug 1995 04:32:15 GMT References: <1995Aug01.011515.6196@delphi.com> <1995Aug01.103815.9375@unam.mx> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Aug01.103815.9375@unam.mx>, hivanov@unam.mx (Hugo Ivanov) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Hugo Novak Tape trading list upon request. SASE required for international mail. From jdubois@pacbell.net Fri Aug 04 00:11:15 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!pacbell!jdubois From: jdubois@pacbell.net (Joachim Dubois) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug04.001115.8459@pacbell.net> Date: Fri, 04 Aug 1995 00:11:15 GMT References: <1995Aug01.011515.6196@delphi.com> <1995Aug01.103815.9375@unam.mx> <1995Aug03.043215.8664@mindspring.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug03.043215.8664@mindspring.com>, hnovak@mindspring.com (Hugo Novak) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- === Joachim Dubois === Dept of Electrical Engineering, Pacific Bell Internet Services "The carrier frequency does not drift by accident." From anilsson@utexas.edu Sat Aug 05 18:33:15 1995 Path: ashpoly!cascade!bigsur!utexas!anilsson From: anilsson@utexas.edu (Anja Nilsson) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug05.183315.4841@utexas.edu> Date: Sat, 05 Aug 1995 18:33:15 GMT References: <1995Aug01.011515.6196@delphi.com> <1995Aug01.103815.9375@unam.mx> <1995Aug03.043215.8664@mindspring.com> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Aug03.043215.8664@mindspring.com>, hnovak@mindspring.com (Hugo Novak) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. PGP Public key available via finger or upon request. -- === Anja Nilsson === Dept of Electrical Engineering, University of Texas at Austin "Hold for relay."