From mlaurent@panix.com Tue Apr 11 04:38:23 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!mlaurent From: mlaurent@panix.com (Mikhail Laurent) Newsgroups: comp.sys.m68k Subject: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Apr11.043823.2250@panix.com> Date: Tue, 11 Apr 1995 04:38:23 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Hardware disassembly report for Motorola hardware hackers. 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? -- Mikhail Laurent *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0 From egirard@kth.se Wed Apr 12 06:11:23 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!kth!egirard From: egirard@kth.se (Élodie Girard) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Apr12.061123.8408@kth.se> Date: Wed, 12 Apr 1995 06:11:23 GMT References: <1995Apr11.043823.2250@panix.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Apr11.043823.2250@panix.com>, mlaurent@panix.com (Mikhail Laurent) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Élodie Girard | egirard@kth.se PGP Key fingerprint: 0E33 05C9 923A 1CFB "Keep the channels open." From akang@mit.edu Fri Apr 14 05:25:23 1995 Path: ashpoly!cascade!mxgate!coyoacan!mit!akang From: akang@mit.edu (Aiko Kang) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Apr14.052523.1269@mit.edu> Date: Fri, 14 Apr 1995 05:25:23 GMT References: <1995Apr11.043823.2250@panix.com> <1995Apr12.061123.8408@kth.se> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Apr12.061123.8408@kth.se>, egirard@kth.se (Élodie Girard) 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! -- Aiko Kang Tape trading list upon request. SASE required for international mail. From rwatanabe@kiae.su Sat Apr 15 11:15:23 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!rwatanabe From: rwatanabe@kiae.su (Rodrigo Watanabe) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Apr15.111523.2820@kiae.su> Date: Sat, 15 Apr 1995 11:15:23 GMT References: <1995Apr11.043823.2250@panix.com> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Apr11.043823.2250@panix.com>, mlaurent@panix.com (Mikhail Laurent) writes: > Hardware disassembly report for Motorola hardware hackers. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Rodrigo Watanabe | rwatanabe@kiae.su PGP Key fingerprint: AE43 430D AA39 D291 "Keep the channels open." From stakahashi@delphi.com Mon Apr 17 13:35:23 1995 Path: ashpoly!cascade!bigsur!delphi!stakahashi From: stakahashi@delphi.com (Sven Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Data: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Apr17.133523.5951@delphi.com> Date: Mon, 17 Apr 1995 13:35:23 GMT References: <1995Apr11.043823.2250@panix.com> <1995Apr12.061123.8408@kth.se> <1995Apr14.052523.1269@mit.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Apr14.052523.1269@mit.edu>, akang@mit.edu (Aiko Kang) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Sven Takahashi "Hardware is temporary. The signal survives." Mac IIci / 68882 FPU / SunOS 4.1.4