From bkim@stanford.edu Sat May 11 19:01:18 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!stanford!bkim From: bkim@stanford.edu (Bastien Kim) Newsgroups: comp.sys.m68k Subject: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May11.190118.6299@stanford.edu> Date: Sat, 11 May 1996 19:01:18 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 10 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. 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. -- Bastien Kim Tape trading list upon request. SASE required for international mail. From trobertson@hanse.de Sat May 11 23:45:18 1996 Path: ashpoly!cascade!bigsur!hanse!trobertson From: trobertson@hanse.de (Tyler Robertson) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May11.234518.5502@hanse.de> Date: Sat, 11 May 1996 23:45:18 GMT References: <1996May11.190118.6299@stanford.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 12 In article <1996May11.190118.6299@stanford.edu>, bkim@stanford.edu (Bastien Kim) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. PGP Public key available via finger or upon request. -- Tyler Robertson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From livanov@ox.ac.uk Sun May 12 06:23:18 1996 Path: ashpoly!cascade!transat!ukc!fennimore!ox!livanov From: livanov@ox.ac.uk (Lisa Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May12.062318.1826@ox.ac.uk> Date: Sun, 12 May 1996 06:23:18 GMT References: <1996May11.190118.6299@stanford.edu> <1996May11.234518.5502@hanse.de> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996May11.234518.5502@hanse.de>, trobertson@hanse.de (Tyler Robertson) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. > PGP Public key available via finger or upon request. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Lisa Ivanov | livanov@ox.ac.uk PGP Key fingerprint: 5B63 ADCA 2576 AAED "Keep the channels open." From candersson@demon.co.uk Mon May 13 13:22:18 1996 Path: ashpoly!cascade!brgate!saturno!demon!candersson From: candersson@demon.co.uk (Camila Andersson) Newsgroups: comp.sys.m68k Subject: Re: Observation: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996May13.132218.5459@demon.co.uk> Date: Mon, 13 May 1996 13:22:18 GMT References: <1996May11.190118.6299@stanford.edu> <1996May11.234518.5502@hanse.de> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996May11.234518.5502@hanse.de>, trobertson@hanse.de (Tyler Robertson) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. > PGP Public key available via finger or upon request. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- === Camila Andersson === Dept of Electrical Engineering, Demon Internet Services UK "Tape doesn't lie at 02:14. Ears do."