From goliveira@purdue.edu Tue Jul 09 20:35:08 1996 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!goliveira From: goliveira@purdue.edu (Graham Oliveira) Newsgroups: comp.sys.m68k Subject: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jul09.203508.3379@purdue.edu> Date: Tue, 09 Jul 1996 20:35:08 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Graham Oliveira Tape trading list upon request. SASE required for international mail. From handersson@cern.ch Thu Jul 11 12:43:08 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!handersson From: handersson@cern.ch (Hana Andersson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jul11.124308.6359@cern.ch> Date: Thu, 11 Jul 1996 12:43:08 GMT References: <1996Jul09.203508.3379@purdue.edu> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Jul09.203508.3379@purdue.edu>, goliveira@purdue.edu (Graham Oliveira) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- === Hana Andersson === Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva "Marcus is not one man." From sivanov@purdue.edu Sat Jul 13 16:04:08 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!sivanov From: sivanov@purdue.edu (Sun-mi Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jul13.160408.3319@purdue.edu> Date: Sat, 13 Jul 1996 16:04:08 GMT References: <1996Jul09.203508.3379@purdue.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Jul09.203508.3379@purdue.edu>, goliveira@purdue.edu (Graham Oliveira) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Sun-mi Ivanov "5 sigma is a discovery. 7 is a question." NeXTstation Turbo Color / SunOS 4.1.4 From ssuzuki@pipeline.com Mon Jul 15 04:28:08 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!ssuzuki From: ssuzuki@pipeline.com (Sun-mi Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jul15.042808.1791@pipeline.com> Date: Mon, 15 Jul 1996 04:28:08 GMT References: <1996Jul09.203508.3379@purdue.edu> <1996Jul11.124308.6359@cern.ch> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jul11.124308.6359@cern.ch>, handersson@cern.ch (Hana Andersson) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. > My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- === Sun-mi Suzuki === Dept of Electrical Engineering, The Pipeline Internet Network "5 sigma is a discovery. 7 is a question."