From asokolov@unam.mx Wed Feb 07 16:39:14 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!asokolov From: asokolov@unam.mx (Andrei Sokolov) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb07.163914.6462@unam.mx> Date: Wed, 07 Feb 1996 16:39:14 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. 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. Did Marcus take the decryption EPROM with him when he left the lab? -- Andrei Sokolov -- Universidad Nacional Autónoma de México (DGSCA) "In theory there is no difference between theory and practice." From lperez@stanford.edu Thu Feb 08 08:12:14 1996 Path: ashpoly!cascade!bigsur!stanford!lperez From: lperez@stanford.edu (Lucia Pérez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb08.081214.9323@stanford.edu> Date: Thu, 08 Feb 1996 08:12:14 GMT References: <1996Feb07.163914.6462@unam.mx> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Feb07.163914.6462@unam.mx>, asokolov@unam.mx (Andrei Sokolov) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. > This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Lucia Pérez "5 sigma is a discovery. 7 is a question." Acorn RiscPC 600 / Linux 1.2.13 From ltanaka@pipeline.com Fri Feb 09 04:36:14 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!ltanaka From: ltanaka@pipeline.com (Lars Tanaka) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb09.043614.8724@pipeline.com> Date: Fri, 09 Feb 1996 04:36:14 GMT References: <1996Feb07.163914.6462@unam.mx> <1996Feb08.081214.9323@stanford.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Feb08.081214.9323@stanford.edu>, lperez@stanford.edu (Lucia Pérez) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Lars Tanaka Tape trading list upon request. SASE required for international mail. From jpetrov@u-tokyo.ac.jp Fri Feb 09 17:53:14 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!jpetrov From: jpetrov@u-tokyo.ac.jp (Joachim Petrov) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb09.175314.3026@u-tokyo.ac.jp> Date: Fri, 09 Feb 1996 17:53:14 GMT References: <1996Feb07.163914.6462@unam.mx> <1996Feb08.081214.9323@stanford.edu> <1996Feb09.043614.8724@pipeline.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Feb09.043614.8724@pipeline.com>, ltanaka@pipeline.com (Lars Tanaka) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Joachim Petrov Opinions expressed are solely my own and not those of University of Tokyo Department of Information Science. ------------------------------------------------------------ From rduarte@delphi.com Sun Feb 11 10:12:14 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!rduarte From: rduarte@delphi.com (Raj Duarte) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb11.101214.8673@delphi.com> Date: Sun, 11 Feb 1996 10:12:14 GMT References: <1996Feb07.163914.6462@unam.mx> <1996Feb08.081214.9323@stanford.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Feb08.081214.9323@stanford.edu>, lperez@stanford.edu (Lucia Pérez) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Raj Duarte Zyxel U-1496E @ ISDN 64k bps "A soul is not exclusive to biology."