From yfournier@purdue.edu Mon Oct 02 06:55:49 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!yfournier From: yfournier@purdue.edu (Yuki Fournier) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct02.065549.5230@purdue.edu> Date: Mon, 02 Oct 1995 06:55:49 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 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. Did Marcus take the decryption EPROM with him when he left the lab? -- Yuki Fournier *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From oeriksson@berkeley.edu Tue Oct 03 18:40:49 1995 Path: ashpoly!cascade!transat!ukc!fennimore!berkeley!oeriksson From: oeriksson@berkeley.edu (Olga Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct03.184049.2474@berkeley.edu> Date: Tue, 03 Oct 1995 18:40:49 GMT References: <1995Oct02.065549.5230@purdue.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Oct02.065549.5230@purdue.edu>, yfournier@purdue.edu (Yuki Fournier) 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. -- Olga Eriksson "In theory there is no difference between theory and practice." Pentium 90 (OS/2 Warp) / SunOS 4.1.4 From ahernandez@kth.se Wed Oct 04 14:20:49 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kth!ahernandez From: ahernandez@kth.se (Anton Hernández) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.142049.5640@kth.se> Date: Wed, 04 Oct 1995 14:20:49 GMT References: <1995Oct02.065549.5230@purdue.edu> <1995Oct03.184049.2474@berkeley.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct03.184049.2474@berkeley.edu>, oeriksson@berkeley.edu (Olga Eriksson) 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 Hernández Zyxel U-1496E @ 14,400 bps "Measuring a record you own is listening, not piracy." From breyes@clari.net Thu Oct 05 00:38:49 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!breyes From: breyes@clari.net (Brian Reyes) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct05.003849.5714@clari.net> Date: Thu, 05 Oct 1995 00:38:49 GMT References: <1995Oct02.065549.5230@purdue.edu> <1995Oct03.184049.2474@berkeley.edu> <1995Oct04.142049.5640@kth.se> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Oct04.142049.5640@kth.se>, ahernandez@kth.se (Anton Hernández) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Brian Reyes Tape trading list upon request. SASE required for international mail.