From tsilva@netcom.com Sun Jun 02 05:46:10 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!tsilva From: tsilva@netcom.com (Thiago Silva) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun02.054610.8504@netcom.com> Date: Sun, 02 Jun 1996 05:46:10 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Thiago Silva | tsilva@netcom.com PGP Key fingerprint: 5688 9C42 0A99 D46C "Keep the channels open." From apark@tum.de Mon Jun 03 15:04:10 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!apark From: apark@tum.de (Anja Park) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun03.150410.7505@tum.de> Date: Mon, 03 Jun 1996 15:04:10 GMT References: <1996Jun02.054610.8504@netcom.com> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Jun02.054610.8504@netcom.com>, tsilva@netcom.com (Thiago Silva) 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. -- Anja Park Tape trading list upon request. SASE required for international mail. From hschneider@pacbell.net Tue Jun 04 13:43:10 1996 Path: ashpoly!cascade!transat!ukc!fennimore!pacbell!hschneider From: hschneider@pacbell.net (Hugo Schneider) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun04.134310.4224@pacbell.net> Date: Tue, 04 Jun 1996 13:43:10 GMT References: <1996Jun02.054610.8504@netcom.com> <1996Jun03.150410.7505@tum.de> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jun03.150410.7505@tum.de>, apark@tum.de (Anja Park) 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. -- Hugo Schneider *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From jsokolov@unam.mx Wed Jun 05 06:23:10 1996 Path: ashpoly!cascade!bigsur!unam!jsokolov From: jsokolov@unam.mx (Julien Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jun05.062310.2764@unam.mx> Date: Wed, 05 Jun 1996 06:23:10 GMT References: <1996Jun02.054610.8504@netcom.com> <1996Jun03.150410.7505@tum.de> <1996Jun04.134310.4224@pacbell.net> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jun04.134310.4224@pacbell.net>, hschneider@pacbell.net (Hugo Schneider) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- === Julien Sokolov === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "Row 14. No joke."