From mivanov@cmu.edu Fri May 26 17:33:02 1995 Path: ashpoly!cascade!bigsur!cmu!mivanov From: mivanov@cmu.edu (Matthias Ivanov) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May26.173302.4040@cmu.edu> Date: Fri, 26 May 1995 17:33:02 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N 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. 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. -- Matthias Ivanov SupraFAXModem 28.8 @ 33,600 bps "Measuring a record you own is listening, not piracy." From ekim@earthlink.net Sat May 27 08:09:02 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!ekim From: ekim@earthlink.net (Elaine Kim) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May27.080902.5810@earthlink.net> Date: Sat, 27 May 1995 08:09:02 GMT References: <1995May26.173302.4040@cmu.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May26.173302.4040@cmu.edu>, mivanov@cmu.edu (Matthias Ivanov) writes: > 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. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Elaine Kim -- EarthLink Network "Row 14. No joke." From vkuznetsov@utexas.edu Sat May 27 16:46:02 1995 Path: ashpoly!cascade!transat!ukc!fennimore!utexas!vkuznetsov From: vkuznetsov@utexas.edu (Valeria Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May27.164602.5793@utexas.edu> Date: Sat, 27 May 1995 16:46:02 GMT References: <1995May26.173302.4040@cmu.edu> <1995May27.080902.5810@earthlink.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May27.080902.5810@earthlink.net>, ekim@earthlink.net (Elaine Kim) writes: > That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Valeria Kuznetsov US Robotics Courier V.34 @ 19,200 bps "5 sigma is a discovery. 7 is a question." From mkuznetsov@berkeley.edu Mon May 29 11:51:02 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!mkuznetsov From: mkuznetsov@berkeley.edu (Mike Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May29.115102.6092@berkeley.edu> Date: Mon, 29 May 1995 11:51:02 GMT References: <1995May26.173302.4040@cmu.edu> <1995May27.080902.5810@earthlink.net> <1995May27.164602.5793@utexas.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995May27.164602.5793@utexas.edu>, vkuznetsov@utexas.edu (Valeria Kuznetsov) 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. -- === Mike Kuznetsov === Dept of Electrical Engineering, UC Berkeley Department of EECS "Do not worship the copy." From akim@ox.ac.uk Tue May 30 11:37:02 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!ox!akim From: akim@ox.ac.uk (Anton Kim) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May30.113702.7488@ox.ac.uk> Date: Tue, 30 May 1995 11:37:02 GMT References: <1995May26.173302.4040@cmu.edu> <1995May27.080902.5810@earthlink.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1995May27.080902.5810@earthlink.net>, ekim@earthlink.net (Elaine Kim) 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. -- === Anton Kim === Dept of Electrical Engineering, Oxford University Computing Laboratory "Do not worship the copy."