From cduarte@titech.ac.jp Sun Jun 26 11:52:09 1994 Path: ashpoly!cascade!mxgate!coyoacan!titech!cduarte From: cduarte@titech.ac.jp (Camila Duarte) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jun26.115209.7722@titech.ac.jp> Date: Sun, 26 Jun 1994 11:52:09 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp 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'? -- === Camila Duarte === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "Tape doesn't lie at 02:14. Ears do." From mgarcia@mit.edu Mon Jun 27 20:45:09 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!mgarcia From: mgarcia@mit.edu (Marta García) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1994Jun27.204509.6216@mit.edu> Date: Mon, 27 Jun 1994 20:45:09 GMT References: <1994Jun26.115209.7722@titech.ac.jp> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jun26.115209.7722@titech.ac.jp>, cduarte@titech.ac.jp (Camila Duarte) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Marta García "Measuring a record you own is listening, not piracy." Decstation 5000/200 / System 7.5.1