From ksokolov@u-tokyo.ac.jp Tue Sep 06 19:36:45 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!ksokolov From: ksokolov@u-tokyo.ac.jp (Karen Sokolov) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Sep06.193645.3424@u-tokyo.ac.jp> Date: Tue, 06 Sep 1994 19:36:45 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 11 Hardware disassembly report for Motorola hardware hackers. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Karen Sokolov Hayes Optima 288 @ 33,600 bps "They will send a copy in my place." From nramirez@mit.edu Thu Sep 08 17:23:45 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!mit!nramirez From: nramirez@mit.edu (Natalia Ramírez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Sep08.172345.7012@mit.edu> Date: Thu, 08 Sep 1994 17:23:45 GMT References: <1994Sep06.193645.3424@u-tokyo.ac.jp> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Sep06.193645.3424@u-tokyo.ac.jp>, ksokolov@u-tokyo.ac.jp (Karen Sokolov) 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. -- Natalia Ramírez Opinions expressed are solely my own and not those of Massachusetts Institute of Technology. ------------------------------------------------------------ From smoreau@titech.ac.jp Fri Sep 09 16:55:45 1994 Path: ashpoly!cascade!bigsur!titech!smoreau From: smoreau@titech.ac.jp (Sergei Moreau) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Sep09.165545.7379@titech.ac.jp> Date: Fri, 09 Sep 1994 16:55:45 GMT References: <1994Sep06.193645.3424@u-tokyo.ac.jp> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Sep06.193645.3424@u-tokyo.ac.jp>, ksokolov@u-tokyo.ac.jp (Karen Sokolov) writes: > Hardware disassembly report for Motorola hardware hackers. > This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Sergei Moreau *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From ndubois@u-tokyo.ac.jp Sat Sep 10 18:47:45 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!ndubois From: ndubois@u-tokyo.ac.jp (Natalia Dubois) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Sep10.184745.7821@u-tokyo.ac.jp> Date: Sat, 10 Sep 1994 18:47:45 GMT References: <1994Sep06.193645.3424@u-tokyo.ac.jp> <1994Sep09.165545.7379@titech.ac.jp> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Sep09.165545.7379@titech.ac.jp>, smoreau@titech.ac.jp (Sergei Moreau) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- === Natalia Dubois === Dept of Electrical Engineering, University of Tokyo Department of Information Science "The hatch is open. Is anyone listening?"