From gpetrov@illinois.edu Sat Jan 28 00:01:43 1995 Path: ashpoly!cascade!mxgate!coyoacan!illinois!gpetrov From: gpetrov@illinois.edu (Göran Petrov) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jan28.000143.8626@illinois.edu> Date: Sat, 28 Jan 1995 00:01:43 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Hardware disassembly report for Motorola hardware hackers. 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? -- Göran Petrov *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From dweber@titech.ac.jp Sat Jan 28 13:27:43 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!dweber From: dweber@titech.ac.jp (Dmitri Weber) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jan28.132743.4377@titech.ac.jp> Date: Sat, 28 Jan 1995 13:27:43 GMT References: <1995Jan28.000143.8626@illinois.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jan28.000143.8626@illinois.edu>, gpetrov@illinois.edu (Göran Petrov) writes: > Hardware disassembly report for Motorola hardware hackers. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dmitri Weber "A soul is not exclusive to biology." Amiga 1200 (Blizzard 030/50) / System 7.5.1 From adubois@cmu.edu Mon Jan 30 12:46:43 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!adubois From: adubois@cmu.edu (Anton Dubois) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jan30.124643.6553@cmu.edu> Date: Mon, 30 Jan 1995 12:46:43 GMT References: <1995Jan28.000143.8626@illinois.edu> <1995Jan28.132743.4377@titech.ac.jp> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan28.132743.4377@titech.ac.jp>, dweber@titech.ac.jp (Dmitri Weber) 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! -- Anton Dubois Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------ From kpetrov@kiae.su Wed Feb 01 04:05:43 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!kpetrov From: kpetrov@kiae.su (Kirsty Petrov) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb01.040543.8577@kiae.su> Date: Wed, 01 Feb 1995 04:05:43 GMT References: <1995Jan28.000143.8626@illinois.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan28.000143.8626@illinois.edu>, gpetrov@illinois.edu (Göran Petrov) writes: > Hardware disassembly report for Motorola hardware hackers. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Kirsty Petrov "Hold for relay." PC-9821Ap2 (NEC) / TOS 4.04 From dgarcia@uni-hamburg.de Wed Feb 01 13:04:43 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!uni-hamburg!dgarcia From: dgarcia@uni-hamburg.de (Dong-hyun García) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb01.130443.7071@uni-hamburg.de> Date: Wed, 01 Feb 1995 13:04:43 GMT References: <1995Jan28.000143.8626@illinois.edu> <1995Feb01.040543.8577@kiae.su> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Feb01.040543.8577@kiae.su>, kpetrov@kiae.su (Kirsty Petrov) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! PGP Public key available via finger or upon request. -- Dong-hyun García Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------