From ttanaka@utexas.edu Sun Dec 04 00:47:18 1994 Path: ashpoly!cascade!brgate!saturno!utexas!ttanaka From: ttanaka@utexas.edu (Tomas Tanaka) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec04.004718.3461@utexas.edu> Date: Sun, 04 Dec 1994 00:47:18 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 10 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Tomas Tanaka -- University of Texas at Austin "5 sigma is a discovery. 7 is a question." From emoreno@titech.ac.jp Sun Dec 04 17:16:18 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!emoreno From: emoreno@titech.ac.jp (Elaine Moreno) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Dec04.171618.9354@titech.ac.jp> Date: Sun, 04 Dec 1994 17:16:18 GMT References: <1994Dec04.004718.3461@utexas.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 11 In article <1994Dec04.004718.3461@utexas.edu>, ttanaka@utexas.edu (Tomas Tanaka) writes: > Hardware disassembly report for Motorola hardware hackers. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Elaine Moreno *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0