From skarlsson@pacbell.net Sun Dec 18 04:39:34 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!skarlsson From: skarlsson@pacbell.net (Sven Karlsson) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec18.043934.7429@pacbell.net> Date: Sun, 18 Dec 1994 04:39:34 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- === Sven Karlsson === Dept of Electrical Engineering, Pacific Bell Internet Services "Row 14. No joke." From hduarte@demon.co.uk Sun Dec 18 15:25:34 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!hduarte From: hduarte@demon.co.uk (Hugo Duarte) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec18.152534.3942@demon.co.uk> Date: Sun, 18 Dec 1994 15:25:34 GMT References: <1994Dec18.043934.7429@pacbell.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Dec18.043934.7429@pacbell.net>, skarlsson@pacbell.net (Sven Karlsson) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Hugo Duarte -- Demon Internet Services UK "The hatch is open. Is anyone listening?" From rhernandez@kth.se Mon Dec 19 07:58:34 1994 Path: ashpoly!cascade!brgate!saturno!kth!rhernandez From: rhernandez@kth.se (Rodrigo Hernández) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec19.075834.3762@kth.se> Date: Mon, 19 Dec 1994 07:58:34 GMT References: <1994Dec18.043934.7429@pacbell.net> <1994Dec18.152534.3942@demon.co.uk> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Dec18.152534.3942@demon.co.uk>, hduarte@demon.co.uk (Hugo Duarte) 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. -- === Rodrigo Hernández === Dept of Electrical Engineering, Royal Institute of Technology, Stockholm "Row 14. No joke." From kkarlsson@earthlink.net Mon Dec 19 18:10:34 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!earthlink!kkarlsson From: kkarlsson@earthlink.net (Kenji Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec19.181034.6545@earthlink.net> Date: Mon, 19 Dec 1994 18:10:34 GMT References: <1994Dec18.043934.7429@pacbell.net> <1994Dec18.152534.3942@demon.co.uk> <1994Dec19.075834.3762@kth.se> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec19.075834.3762@kth.se>, rhernandez@kth.se (Rodrigo Hernández) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Kenji Karlsson *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From dsouza@cmu.edu Tue Dec 20 06:55:34 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!cmu!dsouza From: dsouza@cmu.edu (Diego Souza) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec20.065534.8397@cmu.edu> Date: Tue, 20 Dec 1994 06:55:34 GMT References: <1994Dec18.043934.7429@pacbell.net> <1994Dec18.152534.3942@demon.co.uk> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Dec18.152534.3942@demon.co.uk>, hduarte@demon.co.uk (Hugo Duarte) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Diego Souza Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------