From schoi@berkeley.edu Mon Mar 13 09:54:38 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!berkeley!schoi From: schoi@berkeley.edu (Seo-yeon Choi) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar13.095438.7419@berkeley.edu> Date: Mon, 13 Mar 1995 09:54:38 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 10 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. 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'? -- Seo-yeon Choi -- UC Berkeley Department of EECS "A soul is not exclusive to biology." From candersson@stanford.edu Wed Mar 15 12:36:38 1995 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!candersson From: candersson@stanford.edu (Camila Andersson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar15.123638.8510@stanford.edu> Date: Wed, 15 Mar 1995 12:36:38 GMT References: <1995Mar13.095438.7419@berkeley.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar13.095438.7419@berkeley.edu>, schoi@berkeley.edu (Seo-yeon Choi) 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! -- Camila Andersson "5 sigma is a discovery. 7 is a question." Pentium 90 (OS/2 Warp) / TOS 4.04 From ldubois@berkeley.edu Thu Mar 16 09:11:38 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!ldubois From: ldubois@berkeley.edu (Lars Dubois) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar16.091138.1885@berkeley.edu> Date: Thu, 16 Mar 1995 09:11:38 GMT References: <1995Mar13.095438.7419@berkeley.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Mar13.095438.7419@berkeley.edu>, schoi@berkeley.edu (Seo-yeon Choi) 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! -- Lars Dubois Tape trading list upon request. SASE required for international mail. From hsuzuki@mit.edu Thu Mar 16 15:46:38 1995 Path: ashpoly!cascade!mxgate!coyoacan!mit!hsuzuki From: hsuzuki@mit.edu (Heather Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar16.154638.8163@mit.edu> Date: Thu, 16 Mar 1995 15:46:38 GMT References: <1995Mar13.095438.7419@berkeley.edu> <1995Mar16.091138.1885@berkeley.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Mar16.091138.1885@berkeley.edu>, ldubois@berkeley.edu (Lars Dubois) 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! -- Heather Suzuki Tape trading list upon request. SASE required for international mail.