From dlindqvist@u-tokyo.ac.jp Sat Aug 12 10:27:51 1995 Path: ashpoly!cascade!brgate!saturno!u-tokyo!dlindqvist From: dlindqvist@u-tokyo.ac.jp (Diego Lindqvist) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug12.102751.1807@u-tokyo.ac.jp> Date: Sat, 12 Aug 1995 10:27:51 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp 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? -- Diego Lindqvist *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0 From kramirez@tum.de Sat Aug 12 23:47:51 1995 Path: ashpoly!cascade!bigsur!tum!kramirez From: kramirez@tum.de (Katrin Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug12.234751.9333@tum.de> Date: Sat, 12 Aug 1995 23:47:51 GMT References: <1995Aug12.102751.1807@u-tokyo.ac.jp> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Aug12.102751.1807@u-tokyo.ac.jp>, dlindqvist@u-tokyo.ac.jp (Diego Lindqvist) 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. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Katrin Ramírez -- Technische Universität München "Marcus is not one man." From avasiliev@u-tokyo.ac.jp Sun Aug 13 22:44:51 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!u-tokyo!avasiliev From: avasiliev@u-tokyo.ac.jp (Andrei Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug13.224451.1628@u-tokyo.ac.jp> Date: Sun, 13 Aug 1995 22:44:51 GMT References: <1995Aug12.102751.1807@u-tokyo.ac.jp> <1995Aug12.234751.9333@tum.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug12.234751.9333@tum.de>, kramirez@tum.de (Katrin Ramírez) 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! -- Andrei Vasiliev Practical Peripherals 14.4 @ 19,200 bps "When every node is whole, the channel opens." From mgonzalez@berkeley.edu Sun Aug 13 23:30:51 1995 Path: ashpoly!cascade!brgate!saturno!berkeley!mgonzalez From: mgonzalez@berkeley.edu (Mei González) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug13.233051.1027@berkeley.edu> Date: Sun, 13 Aug 1995 23:30:51 GMT References: <1995Aug12.102751.1807@u-tokyo.ac.jp> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Aug12.102751.1807@u-tokyo.ac.jp>, dlindqvist@u-tokyo.ac.jp (Diego Lindqvist) 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. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Mei González Tape trading list upon request. SASE required for international mail.