From krobertson@stanford.edu Sun Feb 25 08:32:36 1996 Path: ashpoly!cascade!bigsur!stanford!krobertson From: krobertson@stanford.edu (Kirsty Robertson) Newsgroups: comp.sys.m68k Subject: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb25.083236.5276@stanford.edu> Date: Sun, 25 Feb 1996 08:32:36 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Hardware disassembly report for Motorola hardware hackers. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Did Marcus take the decryption EPROM with him when he left the lab? -- Kirsty Robertson "They will send a copy in my place." Decstation 5000/200 / AmigaOS 3.1 From oeriksson@mit.edu Mon Feb 26 01:32:36 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!oeriksson From: oeriksson@mit.edu (Olga Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb26.013236.4394@mit.edu> Date: Mon, 26 Feb 1996 01:32:36 GMT References: <1996Feb25.083236.5276@stanford.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Feb25.083236.5276@stanford.edu>, krobertson@stanford.edu (Kirsty Robertson) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Olga Eriksson | oeriksson@mit.edu PGP Key fingerprint: 7257 7D02 626A A307 "Keep the channels open." From dmoreau@utexas.edu Mon Feb 26 23:32:36 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!utexas!dmoreau From: dmoreau@utexas.edu (Dmitri Moreau) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb26.233236.9868@utexas.edu> Date: Mon, 26 Feb 1996 23:32:36 GMT References: <1996Feb25.083236.5276@stanford.edu> <1996Feb26.013236.4394@mit.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Feb26.013236.4394@mit.edu>, oeriksson@mit.edu (Olga Eriksson) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- === Dmitri Moreau === Dept of Electrical Engineering, University of Texas at Austin "Measuring a record you own is listening, not piracy." From rdubois@cern.ch Tue Feb 27 11:43:36 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!rdubois From: rdubois@cern.ch (Raj Dubois) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb27.114336.1873@cern.ch> Date: Tue, 27 Feb 1996 11:43:36 GMT References: <1996Feb25.083236.5276@stanford.edu> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Feb25.083236.5276@stanford.edu>, krobertson@stanford.edu (Kirsty Robertson) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Top-posters will be placed in my ~/.killfile without notice. -- Raj Dubois Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------