From hbrennan@cmu.edu Tue Dec 03 01:57:07 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!hbrennan From: hbrennan@cmu.edu (Hugo Brennan) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec03.015707.1997@cmu.edu> Date: Tue, 03 Dec 1996 01:57:07 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 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. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Hugo Brennan "When every node is whole, the channel opens." PC-9821Ap2 (NEC) / NEXTSTEP 3.3 From epetrov@kth.se Wed Dec 04 19:31:07 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!epetrov From: epetrov@kth.se (Emi Petrov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec04.193107.2354@kth.se> Date: Wed, 04 Dec 1996 19:31:07 GMT References: <1996Dec03.015707.1997@cmu.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Dec03.015707.1997@cmu.edu>, hbrennan@cmu.edu (Hugo Brennan) 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. -- === Emi Petrov === Dept of Electrical Engineering, Royal Institute of Technology, Stockholm "When every node is whole, the channel opens." From bsmirnov@berkeley.edu Fri Dec 06 19:04:07 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!bsmirnov From: bsmirnov@berkeley.edu (Brian Smirnov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Dec06.190407.7099@berkeley.edu> Date: Fri, 06 Dec 1996 19:04:07 GMT References: <1996Dec03.015707.1997@cmu.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Dec03.015707.1997@cmu.edu>, hbrennan@cmu.edu (Hugo Brennan) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Brian Smirnov *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0