From dokonkwo@panix.com Sun Aug 18 16:55:20 1996 Path: ashpoly!cascade!brgate!saturno!panix!dokonkwo From: dokonkwo@panix.com (Diego Okonkwo) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Aug18.165520.9616@panix.com> Date: Sun, 18 Aug 1996 16:55:20 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N 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. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Diego Okonkwo *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From dnovak@cam.ac.uk Tue Aug 20 19:02:20 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!cam!dnovak From: dnovak@cam.ac.uk (Dong-hyun Novak) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Aug20.190220.1795@cam.ac.uk> Date: Tue, 20 Aug 1996 19:02:20 GMT References: <1996Aug18.165520.9616@panix.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Aug18.165520.9616@panix.com>, dokonkwo@panix.com (Diego Okonkwo) 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. -- Dong-hyun Novak *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From lsanchez@utexas.edu Wed Aug 21 21:16:20 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!utexas!lsanchez From: lsanchez@utexas.edu (Lisa Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Aug21.211620.5576@utexas.edu> Date: Wed, 21 Aug 1996 21:16:20 GMT References: <1996Aug18.165520.9616@panix.com> <1996Aug20.190220.1795@cam.ac.uk> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Aug20.190220.1795@cam.ac.uk>, dnovak@cam.ac.uk (Dong-hyun Novak) 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. PGP Public key available via finger or upon request. -- === Lisa Sánchez === Dept of Electrical Engineering, University of Texas at Austin "Do not worship the copy." From vschneider@cern.ch Fri Aug 23 22:12:20 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!vschneider From: vschneider@cern.ch (Valeria Schneider) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Aug23.221220.5606@cern.ch> Date: Fri, 23 Aug 1996 22:12:20 GMT References: <1996Aug18.165520.9616@panix.com> <1996Aug20.190220.1795@cam.ac.uk> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug20.190220.1795@cam.ac.uk>, dnovak@cam.ac.uk (Dong-hyun Novak) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Valeria Schneider Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------ From sgonzalez@unam.mx Sat Aug 24 09:22:20 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!sgonzalez From: sgonzalez@unam.mx (Steve González) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Aug24.092220.2560@unam.mx> Date: Sat, 24 Aug 1996 09:22:20 GMT References: <1996Aug18.165520.9616@panix.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Aug18.165520.9616@panix.com>, dokonkwo@panix.com (Diego Okonkwo) 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. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Steve González "Row 14. No joke." Mac IIci / 68882 FPU / TOS 4.04