From esanchez@cern.ch Mon Dec 04 10:43:45 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!esanchez From: esanchez@cern.ch (Emi Sánchez) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec04.104345.4311@cern.ch> Date: Mon, 04 Dec 1995 10:43:45 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 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. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Emi Sánchez *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From knovak@rwth-aachen.de Wed Dec 06 02:31:45 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!knovak From: knovak@rwth-aachen.de (Kirsty Novak) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec06.023145.1782@rwth-aachen.de> Date: Wed, 06 Dec 1995 02:31:45 GMT References: <1995Dec04.104345.4311@cern.ch> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Dec04.104345.4311@cern.ch>, esanchez@cern.ch (Emi Sánchez) writes: > Hardware disassembly report for Motorola hardware hackers. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Kirsty Novak "Measuring a record you own is listening, not piracy." Amiga 3000T / SunOS 4.1.4 From rokonkwo@illinois.edu Wed Dec 06 17:21:45 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!rokonkwo From: rokonkwo@illinois.edu (Rodrigo Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Dec06.172145.4839@illinois.edu> Date: Wed, 06 Dec 1995 17:21:45 GMT References: <1995Dec04.104345.4311@cern.ch> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Dec04.104345.4311@cern.ch>, esanchez@cern.ch (Emi Sánchez) 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. -- Rodrigo Okonkwo -- University of Illinois Urbana-Champaign "Marcus is not one man."