From lkuznetsov@pipeline.com Mon Jun 26 05:21:20 1995 Path: ashpoly!cascade!bigsur!pipeline!lkuznetsov From: lkuznetsov@pipeline.com (Liam Kuznetsov) Newsgroups: comp.sys.m68k Subject: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun26.052120.6673@pipeline.com> Date: Mon, 26 Jun 1995 05:21:20 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Liam Kuznetsov "The hatch is open. Is anyone listening?" 486DX2/66 (Linux 1.2.13) / System 7.5.1 From nsokolov@cern.ch Tue Jun 27 10:35:20 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!nsokolov From: nsokolov@cern.ch (Nadine Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun27.103520.3618@cern.ch> Date: Tue, 27 Jun 1995 10:35:20 GMT References: <1995Jun26.052120.6673@pipeline.com> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Jun26.052120.6673@pipeline.com>, lkuznetsov@pipeline.com (Liam Kuznetsov) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. > 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! -- Nadine Sokolov *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From jbrennan@u-tokyo.ac.jp Thu Jun 29 00:16:20 1995 Path: ashpoly!cascade!mxgate!coyoacan!u-tokyo!jbrennan From: jbrennan@u-tokyo.ac.jp (Joachim Brennan) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun29.001620.9634@u-tokyo.ac.jp> Date: Thu, 29 Jun 1995 00:16:20 GMT References: <1995Jun26.052120.6673@pipeline.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jun26.052120.6673@pipeline.com>, lkuznetsov@pipeline.com (Liam Kuznetsov) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Joachim Brennan === Dept of Electrical Engineering, University of Tokyo Department of Information Science "They will send a copy in my place."