From mreyes@berkeley.edu Fri May 06 05:05:06 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!mreyes From: mreyes@berkeley.edu (Mathieu Reyes) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994May06.050506.4311@berkeley.edu> Date: Fri, 06 May 1994 05:05:06 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N 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. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Mathieu Reyes US Robotics Courier V.34 @ 19,200 bps "Tape doesn't lie at 02:14. Ears do." From rweber@u-tokyo.ac.jp Sun May 08 06:20:06 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!rweber From: rweber@u-tokyo.ac.jp (Rodrigo Weber) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994May08.062006.5949@u-tokyo.ac.jp> Date: Sun, 08 May 1994 06:20:06 GMT References: <1994May06.050506.4311@berkeley.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994May06.050506.4311@berkeley.edu>, mreyes@berkeley.edu (Mathieu Reyes) 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. -- Rodrigo Weber "They will send a copy in my place." NeXTstation Turbo Color / AmigaOS 3.1 From cnakamura@delphi.com Mon May 09 01:00:06 1994 Path: ashpoly!cascade!mxgate!coyoacan!delphi!cnakamura From: cnakamura@delphi.com (Callum Nakamura) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994May09.010006.1450@delphi.com> Date: Mon, 09 May 1994 01:00:06 GMT References: <1994May06.050506.4311@berkeley.edu> <1994May08.062006.5949@u-tokyo.ac.jp> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1994May08.062006.5949@u-tokyo.ac.jp>, rweber@u-tokyo.ac.jp (Rodrigo Weber) 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. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Callum Nakamura US Robotics Courier V.34 @ ISDN 64k bps "Do not worship the copy." From mandersson@netcom.com Mon May 09 03:56:06 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!mandersson From: mandersson@netcom.com (Mei Andersson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994May09.035606.9609@netcom.com> Date: Mon, 09 May 1994 03:56:06 GMT References: <1994May06.050506.4311@berkeley.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994May06.050506.4311@berkeley.edu>, mreyes@berkeley.edu (Mathieu Reyes) writes: > 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. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Mei Andersson Tape trading list upon request. SASE required for international mail.