From mweber@berkeley.edu Tue Oct 03 15:03:09 1995 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!mweber From: mweber@berkeley.edu (Min-jun Weber) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct03.150309.7803@berkeley.edu> Date: Tue, 03 Oct 1995 15:03:09 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 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. 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? -- Min-jun Weber "In theory there is no difference between theory and practice." PC-9821Ap2 (NEC) / FreeBSD 2.1 From lokonkwo@uni-hamburg.de Wed Oct 04 14:12:09 1995 Path: ashpoly!cascade!bigsur!uni-hamburg!lokonkwo From: lokonkwo@uni-hamburg.de (Lucia Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.141209.3633@uni-hamburg.de> Date: Wed, 04 Oct 1995 14:12:09 GMT References: <1995Oct03.150309.7803@berkeley.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Oct03.150309.7803@berkeley.edu>, mweber@berkeley.edu (Min-jun Weber) 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. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Lucia Okonkwo Tape trading list upon request. SASE required for international mail. From tnilsson@hanse.de Fri Oct 06 00:37:09 1995 Path: ashpoly!cascade!bigsur!hanse!tnilsson From: tnilsson@hanse.de (Tobias Nilsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct06.003709.9020@hanse.de> Date: Fri, 06 Oct 1995 00:37:09 GMT References: <1995Oct03.150309.7803@berkeley.edu> <1995Oct04.141209.3633@uni-hamburg.de> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Oct04.141209.3633@uni-hamburg.de>, lokonkwo@uni-hamburg.de (Lucia Okonkwo) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. 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! -- Tobias Nilsson "A soul is not exclusive to biology." Sun SparcStation 20 / NEXTSTEP 3.3 From twatanabe@kth.se Fri Oct 06 17:14:09 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!twatanabe From: twatanabe@kth.se (Tyler Watanabe) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct06.171409.3429@kth.se> Date: Fri, 06 Oct 1995 17:14:09 GMT References: <1995Oct03.150309.7803@berkeley.edu> <1995Oct04.141209.3633@uni-hamburg.de> <1995Oct06.003709.9020@hanse.de> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Oct06.003709.9020@hanse.de>, tnilsson@hanse.de (Tobias Nilsson) writes: > 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! Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Tyler Watanabe *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0