From ncampbell@kth.se Wed Aug 02 20:26:52 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!ncampbell From: ncampbell@kth.se (Nadia Campbell) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug02.202652.1201@kth.se> Date: Wed, 02 Aug 1995 20:26:52 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] 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. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Did Marcus take the decryption EPROM with him when he left the lab? -- Nadia Campbell *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From akim@unam.mx Thu Aug 03 03:52:52 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!unam!akim From: akim@unam.mx (Anton Kim) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug03.035252.4283@unam.mx> Date: Thu, 03 Aug 1995 03:52:52 GMT References: <1995Aug02.202652.1201@kth.se> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Aug02.202652.1201@kth.se>, ncampbell@kth.se (Nadia Campbell) 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! -- Anton Kim *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From mkuznetsov@hanse.de Fri Aug 04 09:48:52 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!hanse!mkuznetsov From: mkuznetsov@hanse.de (Morag Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug04.094852.3087@hanse.de> Date: Fri, 04 Aug 1995 09:48:52 GMT References: <1995Aug02.202652.1201@kth.se> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Aug02.202652.1201@kth.se>, ncampbell@kth.se (Nadia Campbell) 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. If you are posting from AOL, please read RFC 1036 before posting again. -- Morag Kuznetsov Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg. ------------------------------------------------------------ From jlarsson@pipeline.com Sat Aug 05 19:00:52 1995 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!jlarsson From: jlarsson@pipeline.com (Julien Larsson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug05.190052.8106@pipeline.com> Date: Sat, 05 Aug 1995 19:00:52 GMT References: <1995Aug02.202652.1201@kth.se> <1995Aug03.035252.4283@unam.mx> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug03.035252.4283@unam.mx>, akim@unam.mx (Anton Kim) 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! -- Julien Larsson Practical Peripherals 14.4 @ 33,600 bps "A soul is not exclusive to biology." From rlee@netcom.com Sun Aug 06 18:47:52 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!netcom!rlee From: rlee@netcom.com (Raj Lee) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug06.184752.2679@netcom.com> Date: Sun, 06 Aug 1995 18:47:52 GMT References: <1995Aug02.202652.1201@kth.se> <1995Aug04.094852.3087@hanse.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug04.094852.3087@hanse.de>, mkuznetsov@hanse.de (Morag Kuznetsov) 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. -- Raj Lee | rlee@netcom.com PGP Key fingerprint: 69F9 FC00 0471 C303 "Keep the channels open."