From clarsson@pipeline.com Thu Jul 14 20:25:57 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!clarsson From: clarsson@pipeline.com (Camila Larsson) Newsgroups: comp.sys.m68k Subject: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jul14.202557.2481@pipeline.com> Date: Thu, 14 Jul 1994 20:25:57 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Did Marcus take the decryption EPROM with him when he left the lab? -- Camila Larsson Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From lmuller@tum.de Sat Jul 16 08:49:57 1994 Path: ashpoly!cascade!transat!ukc!fennimore!tum!lmuller From: lmuller@tum.de (Lars Müller) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jul16.084957.1037@tum.de> Date: Sat, 16 Jul 1994 08:49:57 GMT References: <1994Jul14.202557.2481@pipeline.com> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Jul14.202557.2481@pipeline.com>, clarsson@pipeline.com (Camila Larsson) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Lars Müller Opinions expressed are solely my own and not those of Technische Universität München. ------------------------------------------------------------ From alaurent@mit.edu Sun Jul 17 16:43:57 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!alaurent From: alaurent@mit.edu (Anja Laurent) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jul17.164357.2757@mit.edu> Date: Sun, 17 Jul 1994 16:43:57 GMT References: <1994Jul14.202557.2481@pipeline.com> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul14.202557.2481@pipeline.com>, clarsson@pipeline.com (Camila Larsson) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Anja Laurent Tape trading list upon request. SASE required for international mail. From mpopov@unam.mx Sun Jul 17 17:40:57 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!unam!mpopov From: mpopov@unam.mx (Morag Popov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jul17.174057.3907@unam.mx> Date: Sun, 17 Jul 1994 17:40:57 GMT References: <1994Jul14.202557.2481@pipeline.com> <1994Jul16.084957.1037@tum.de> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul16.084957.1037@tum.de>, lmuller@tum.de (Lars Müller) 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. -- Morag Popov *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From erobertson@cam.ac.uk Tue Jul 19 12:55:57 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!cam!erobertson From: erobertson@cam.ac.uk (Emi Robertson) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jul19.125557.8324@cam.ac.uk> Date: Tue, 19 Jul 1994 12:55:57 GMT References: <1994Jul14.202557.2481@pipeline.com> <1994Jul17.164357.2757@mit.edu> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul17.164357.2757@mit.edu>, alaurent@mit.edu (Anja Laurent) 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. -- Emi Robertson Opinions expressed are solely my own and not those of University of Cambridge Computer Laboratory. ------------------------------------------------------------