From mwatanabe@clari.net Sat Dec 16 08:10:29 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!clari!mwatanabe From: mwatanabe@clari.net (Morag Watanabe) Newsgroups: comp.sys.m68k Subject: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec16.081029.3568@clari.net> Date: Sat, 16 Dec 1995 08:10:29 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.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. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. 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? -- Morag Watanabe "5 sigma is a discovery. 7 is a question." Decstation 5000/200 / System 7.5.1 From jkuznetsov@pacbell.net Sat Dec 16 11:56:29 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!jkuznetsov From: jkuznetsov@pacbell.net (Jens Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec16.115629.2588@pacbell.net> Date: Sat, 16 Dec 1995 11:56:29 GMT References: <1995Dec16.081029.3568@clari.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Dec16.081029.3568@clari.net>, mwatanabe@clari.net (Morag Watanabe) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Jens Kuznetsov Hayes Optima 288 @ 9600 Telebit bps "They will send a copy in my place." From mperez@uu.net Sun Dec 17 13:25:29 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!mperez From: mperez@uu.net (Mathieu Pérez) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec17.132529.2477@uu.net> Date: Sun, 17 Dec 1995 13:25:29 GMT References: <1995Dec16.081029.3568@clari.net> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec16.081029.3568@clari.net>, mwatanabe@clari.net (Morag Watanabe) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Mathieu Pérez Practical Peripherals 14.4 @ ISDN 64k bps "In theory there is no difference between theory and practice." From mcampbell@kiae.su Tue Dec 19 11:24:29 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!kiae!mcampbell From: mcampbell@kiae.su (Min-jun Campbell) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec19.112429.7352@kiae.su> Date: Tue, 19 Dec 1995 11:24:29 GMT References: <1995Dec16.081029.3568@clari.net> <1995Dec16.115629.2588@pacbell.net> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec16.115629.2588@pacbell.net>, jkuznetsov@pacbell.net (Jens Kuznetsov) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Min-jun Campbell Opinions expressed are solely my own and not those of Kurchatov Institute of Atomic Energy, Moscow. ------------------------------------------------------------ From ktanaka@tum.de Wed Dec 20 07:33:29 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!tum!ktanaka From: ktanaka@tum.de (Karen Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec20.073329.6868@tum.de> Date: Wed, 20 Dec 1995 07:33:29 GMT References: <1995Dec16.081029.3568@clari.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec16.081029.3568@clari.net>, mwatanabe@clari.net (Morag Watanabe) 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. -- Karen Tanaka Opinions expressed are solely my own and not those of Technische Universität München. ------------------------------------------------------------