From rvasiliev@unam.mx Wed Jun 14 19:44:09 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!unam!rvasiliev From: rvasiliev@unam.mx (Renata Vasiliev) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun14.194409.8499@unam.mx> Date: Wed, 14 Jun 1995 19:44:09 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 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. Did Marcus take the decryption EPROM with him when he left the lab? -- Renata Vasiliev "Hardware is temporary. The signal survives." Commodore Amiga 500 (1MB OCS) / AmigaOS 3.1 From mbrennan@pipeline.com Fri Jun 16 07:34:09 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pipeline!mbrennan From: mbrennan@pipeline.com (Mathieu Brennan) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun16.073409.6044@pipeline.com> Date: Fri, 16 Jun 1995 07:34:09 GMT References: <1995Jun14.194409.8499@unam.mx> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jun14.194409.8499@unam.mx>, rvasiliev@unam.mx (Renata Vasiliev) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- === Mathieu Brennan === Dept of Electrical Engineering, The Pipeline Internet Network "In theory there is no difference between theory and practice." From thernandez@uni-hamburg.de Sat Jun 17 22:10:09 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!thernandez From: thernandez@uni-hamburg.de (Takeshi Hernández) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun17.221009.3103@uni-hamburg.de> Date: Sat, 17 Jun 1995 22:10:09 GMT References: <1995Jun14.194409.8499@unam.mx> <1995Jun16.073409.6044@pipeline.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jun16.073409.6044@pipeline.com>, mbrennan@pipeline.com (Mathieu Brennan) 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. -- Takeshi Hernández Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------ From dsanchez@uni-hamburg.de Tue Jun 20 00:47:09 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!dsanchez From: dsanchez@uni-hamburg.de (Dave Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun20.004709.8051@uni-hamburg.de> Date: Tue, 20 Jun 1995 00:47:09 GMT References: <1995Jun14.194409.8499@unam.mx> <1995Jun16.073409.6044@pipeline.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Jun16.073409.6044@pipeline.com>, mbrennan@pipeline.com (Mathieu Brennan) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. > Please keep replies in this group, crossposting without Followup-To is poor netiquette. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Dave Sánchez | dsanchez@uni-hamburg.de PGP Key fingerprint: 7150 C728 8AD7 57B1 "Keep the channels open." From esilva@utexas.edu Tue Jun 20 05:21:09 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!esilva From: esilva@utexas.edu (Élodie Silva) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun20.052109.4092@utexas.edu> Date: Tue, 20 Jun 1995 05:21:09 GMT References: <1995Jun14.194409.8499@unam.mx> <1995Jun16.073409.6044@pipeline.com> <1995Jun17.221009.3103@uni-hamburg.de> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jun17.221009.3103@uni-hamburg.de>, thernandez@uni-hamburg.de (Takeshi Hernández) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Élodie Silva "We don't sign stars. We build them." Atari Falcon 030 / TOS 4.04