From erodriguez@demon.co.uk Tue Feb 28 10:58:42 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!demon!erodriguez From: erodriguez@demon.co.uk (Élodie Rodríguez) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb28.105842.6876@demon.co.uk> Date: Tue, 28 Feb 1995 10:58:42 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk 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. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Élodie Rodríguez "Row 14. No joke." Amiga 1200 (Blizzard 030/50) / AmigaOS 3.1 From lgarcia@kiae.su Wed Mar 01 19:40:42 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!lgarcia From: lgarcia@kiae.su (Lisa García) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar01.194042.6810@kiae.su> Date: Wed, 01 Mar 1995 19:40:42 GMT References: <1995Feb28.105842.6876@demon.co.uk> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Feb28.105842.6876@demon.co.uk>, erodriguez@demon.co.uk (Élodie Rodríguez) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Lisa García | lgarcia@kiae.su PGP Key fingerprint: ED45 C19D A2F5 44C5 "Keep the channels open." From bkarlsson@stanford.edu Thu Mar 02 13:17:42 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!stanford!bkarlsson From: bkarlsson@stanford.edu (Brian Karlsson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar02.131742.1137@stanford.edu> Date: Thu, 02 Mar 1995 13:17:42 GMT References: <1995Feb28.105842.6876@demon.co.uk> <1995Mar01.194042.6810@kiae.su> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar01.194042.6810@kiae.su>, lgarcia@kiae.su (Lisa García) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Brian Karlsson Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From mito@utexas.edu Fri Mar 03 23:12:42 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!mito From: mito@utexas.edu (Mikhail Ito) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Mar03.231242.4356@utexas.edu> Date: Fri, 03 Mar 1995 23:12:42 GMT References: <1995Feb28.105842.6876@demon.co.uk> <1995Mar01.194042.6810@kiae.su> <1995Mar02.131742.1137@stanford.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Mar02.131742.1137@stanford.edu>, bkarlsson@stanford.edu (Brian Karlsson) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Mikhail Ito === Dept of Electrical Engineering, University of Texas at Austin "Hold for relay."