From cvasiliev@purdue.edu Sun Aug 28 00:29:12 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!cvasiliev From: cvasiliev@purdue.edu (Camila Vasiliev) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Aug28.002912.4086@purdue.edu> Date: Sun, 28 Aug 1994 00:29:12 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 11 Hardware disassembly report for Motorola hardware hackers. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Camila Vasiliev "Do not worship the copy." Macintosh IIfx / NEXTSTEP 3.3 From aduarte@panix.com Tue Aug 30 02:44:12 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!aduarte From: aduarte@panix.com (Astrid Duarte) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Aug30.024412.2614@panix.com> Date: Tue, 30 Aug 1994 02:44:12 GMT References: <1994Aug28.002912.4086@purdue.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug28.002912.4086@purdue.edu>, cvasiliev@purdue.edu (Camila Vasiliev) 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. -- Astrid Duarte Hayes Optima 288 @ ISDN 64k bps "In theory there is no difference between theory and practice." From achoi@clari.net Tue Aug 30 15:40:12 1994 Path: ashpoly!cascade!mxgate!coyoacan!clari!achoi From: achoi@clari.net (Astrid Choi) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Aug30.154012.1995@clari.net> Date: Tue, 30 Aug 1994 15:40:12 GMT References: <1994Aug28.002912.4086@purdue.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1994Aug28.002912.4086@purdue.edu>, cvasiliev@purdue.edu (Camila Vasiliev) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Astrid Choi "Hardware is temporary. The signal survives." Atari Falcon 030 / System 7.5.1 From msuzuki@purdue.edu Wed Aug 31 10:32:12 1994 Path: ashpoly!cascade!brgate!saturno!purdue!msuzuki From: msuzuki@purdue.edu (Morag Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Aug31.103212.4673@purdue.edu> Date: Wed, 31 Aug 1994 10:32:12 GMT References: <1994Aug28.002912.4086@purdue.edu> <1994Aug30.024412.2614@panix.com> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Aug30.024412.2614@panix.com>, aduarte@panix.com (Astrid 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. Top-posters will be placed in my ~/.killfile without notice. -- Morag Suzuki "Hardware is temporary. The signal survives." Atari TT030 / FreeBSD 2.1 From tkang@rwth-aachen.de Wed Aug 31 12:31:12 1994 Path: ashpoly!cascade!bigsur!rwth-aachen!tkang From: tkang@rwth-aachen.de (Thiago Kang) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Aug31.123112.5381@rwth-aachen.de> Date: Wed, 31 Aug 1994 12:31:12 GMT References: <1994Aug28.002912.4086@purdue.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Aug28.002912.4086@purdue.edu>, cvasiliev@purdue.edu (Camila Vasiliev) writes: > Hardware disassembly report for Motorola hardware hackers. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Thiago Kang Tape trading list upon request. SASE required for international mail.