From ekang@kth.se Thu Jun 22 23:49:28 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kth!ekang From: ekang@kth.se (Elaine Kang) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun22.234928.7227@kth.se> Date: Thu, 22 Jun 1995 23:49:28 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 10 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. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Did Marcus take the decryption EPROM with him when he left the lab? -- Elaine Kang Tape trading list upon request. SASE required for international mail. From kmacdonald@earthlink.net Fri Jun 23 19:43:28 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!earthlink!kmacdonald From: kmacdonald@earthlink.net (Kirsty MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun23.194328.6929@earthlink.net> Date: Fri, 23 Jun 1995 19:43:28 GMT References: <1995Jun22.234928.7227@kth.se> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Jun22.234928.7227@kth.se>, ekang@kth.se (Elaine Kang) 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. 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). -- Kirsty MacDonald *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0