From ssantos@earthlink.net Sat May 04 04:29:41 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!ssantos From: ssantos@earthlink.net (Sven Santos) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May04.042941.6401@earthlink.net> Date: Sat, 04 May 1996 04:29:41 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 10 Hardware disassembly report for Motorola hardware hackers. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Sven Santos Tape trading list upon request. SASE required for international mail. From rsuzuki@cern.ch Sun May 05 04:30:41 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cern!rsuzuki From: rsuzuki@cern.ch (Raj Suzuki) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May05.043041.2679@cern.ch> Date: Sun, 05 May 1996 04:30:41 GMT References: <1996May04.042941.6401@earthlink.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May04.042941.6401@earthlink.net>, ssantos@earthlink.net (Sven Santos) 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. -- Raj Suzuki | rsuzuki@cern.ch PGP Key fingerprint: 86ED 85D6 2F67 098F "Keep the channels open." From dfischer@cmu.edu Tue May 07 01:14:41 1996 Path: ashpoly!cascade!brgate!saturno!cmu!dfischer From: dfischer@cmu.edu (Dave Fischer) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May07.011441.7498@cmu.edu> Date: Tue, 07 May 1996 01:14:41 GMT References: <1996May04.042941.6401@earthlink.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996May04.042941.6401@earthlink.net>, ssantos@earthlink.net (Sven Santos) writes: > Hardware disassembly report for Motorola hardware hackers. > This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Dave Fischer "There are 14 nodes and only 10 countries. Count again." Amiga 3000T / TOS 4.04 From bgirard@tum.de Thu May 09 03:46:41 1996 Path: ashpoly!cascade!bigsur!tum!bgirard From: bgirard@tum.de (Bill Girard) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May09.034641.2465@tum.de> Date: Thu, 09 May 1996 03:46:41 GMT References: <1996May04.042941.6401@earthlink.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996May04.042941.6401@earthlink.net>, ssantos@earthlink.net (Sven Santos) writes: > Hardware disassembly report for Motorola hardware hackers. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Bill Girard | bgirard@tum.de PGP Key fingerprint: E51A C2DE 94D3 15A3 "Keep the channels open."