From klarsson@panix.com Wed Nov 20 02:43:46 1996 Path: ashpoly!cascade!bigsur!panix!klarsson From: klarsson@panix.com (Karen Larsson) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov20.024346.4370@panix.com> Date: Wed, 20 Nov 1996 02:43:46 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Karen Larsson "A soul is not exclusive to biology." Mac IIci / 68882 FPU / TOS 4.04 From agonzalez@demon.co.uk Fri Nov 22 02:30:46 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!demon!agonzalez From: agonzalez@demon.co.uk (Anton González) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov22.023046.3203@demon.co.uk> Date: Fri, 22 Nov 1996 02:30:46 GMT References: <1996Nov20.024346.4370@panix.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Nov20.024346.4370@panix.com>, klarsson@panix.com (Karen Larsson) writes: > 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. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Anton González === Dept of Electrical Engineering, Demon Internet Services UK "In theory there is no difference between theory and practice." From ynakamura@mindspring.com Sat Nov 23 02:48:46 1996 Path: ashpoly!cascade!mxgate!coyoacan!mindspring!ynakamura From: ynakamura@mindspring.com (Yuki Nakamura) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov23.024846.4299@mindspring.com> Date: Sat, 23 Nov 1996 02:48:46 GMT References: <1996Nov20.024346.4370@panix.com> <1996Nov22.023046.3203@demon.co.uk> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996Nov22.023046.3203@demon.co.uk>, agonzalez@demon.co.uk (Anton González) 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. -- Yuki Nakamura -- MindSpring Enterprises "There are 14 nodes and only 10 countries. Count again." From jpark@uu.net Sun Nov 24 16:27:46 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!uu!jpark From: jpark@uu.net (Ji-woo Park) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov24.162746.2807@uu.net> Date: Sun, 24 Nov 1996 16:27:46 GMT References: <1996Nov20.024346.4370@panix.com> <1996Nov22.023046.3203@demon.co.uk> <1996Nov23.024846.4299@mindspring.com> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Nov23.024846.4299@mindspring.com>, ynakamura@mindspring.com (Yuki Nakamura) 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. If you are posting from AOL, please read RFC 1036 before posting again. -- === Ji-woo Park === Dept of Electrical Engineering, UUNET Technologies, Falls Church VA "Extraordinary claims require extraordinary spectra." From dtanaka@hanse.de Tue Nov 26 07:24:46 1996 Path: ashpoly!cascade!mxgate!coyoacan!hanse!dtanaka From: dtanaka@hanse.de (Dong-hyun Tanaka) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Nov26.072446.7501@hanse.de> Date: Tue, 26 Nov 1996 07:24:46 GMT References: <1996Nov20.024346.4370@panix.com> <1996Nov22.023046.3203@demon.co.uk> <1996Nov23.024846.4299@mindspring.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov23.024846.4299@mindspring.com>, ynakamura@mindspring.com (Yuki Nakamura) 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. -- Dong-hyun Tanaka "Extraordinary claims require extraordinary spectra." Macintosh IIfx / FreeBSD 2.1