From rschneider@unam.mx Tue Feb 07 12:52:26 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!unam!rschneider From: rschneider@unam.mx (Renata Schneider) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb07.125226.5705@unam.mx> Date: Tue, 07 Feb 1995 12:52:26 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 11 Hardware disassembly report for Motorola hardware hackers. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Did Marcus take the decryption EPROM with him when he left the lab? -- Renata Schneider "Do not worship the copy." Pentium 90 (OS/2 Warp) / AmigaOS 3.1 From gmoreau@illinois.edu Wed Feb 08 12:25:26 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!gmoreau From: gmoreau@illinois.edu (Graham Moreau) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb08.122526.5517@illinois.edu> Date: Wed, 08 Feb 1995 12:25:26 GMT References: <1995Feb07.125226.5705@unam.mx> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Feb07.125226.5705@unam.mx>, rschneider@unam.mx (Renata Schneider) 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. -- Graham Moreau "They will send a copy in my place." Sun 3/60 (SunOS 4.1.1) / NEXTSTEP 3.3 From amuller@mit.edu Thu Feb 09 21:02:26 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!amuller From: amuller@mit.edu (Amy Müller) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb09.210226.8006@mit.edu> Date: Thu, 09 Feb 1995 21:02:26 GMT References: <1995Feb07.125226.5705@unam.mx> <1995Feb08.122526.5517@illinois.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Feb08.122526.5517@illinois.edu>, gmoreau@illinois.edu (Graham 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. -- Amy Müller Tape trading list upon request. SASE required for international mail.