From cbrennan@delphi.com Tue Oct 25 00:25:57 1994 Path: ashpoly!cascade!transat!ukc!fennimore!delphi!cbrennan From: cbrennan@delphi.com (Callum Brennan) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Oct25.002557.7220@delphi.com> Date: Tue, 25 Oct 1994 00:25:57 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. 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. -- Callum Brennan "We don't sign stars. We build them." Acorn RiscPC 600 / SunOS 4.1.4 From alaurent@kth.se Wed Oct 26 10:28:57 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!kth!alaurent From: alaurent@kth.se (Amy Laurent) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Oct26.102857.3729@kth.se> Date: Wed, 26 Oct 1994 10:28:57 GMT References: <1994Oct25.002557.7220@delphi.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Oct25.002557.7220@delphi.com>, cbrennan@delphi.com (Callum Brennan) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Amy Laurent === Dept of Electrical Engineering, Royal Institute of Technology, Stockholm "When every node is whole, the channel opens."