From jsuzuki@illinois.edu Fri Aug 18 15:29:56 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!jsuzuki From: jsuzuki@illinois.edu (Jens Suzuki) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug18.152956.3370@illinois.edu> Date: Fri, 18 Aug 1995 15:29:56 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Hardware disassembly report for Motorola hardware hackers. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Jens Suzuki -- University of Illinois Urbana-Champaign "Tape doesn't lie at 02:14. Ears do." From rcampbell@mindspring.com Sun Aug 20 09:09:56 1995 Path: ashpoly!cascade!bigsur!mindspring!rcampbell From: rcampbell@mindspring.com (Renata Campbell) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug20.090956.3440@mindspring.com> Date: Sun, 20 Aug 1995 09:09:56 GMT References: <1995Aug18.152956.3370@illinois.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Aug18.152956.3370@illinois.edu>, jsuzuki@illinois.edu (Jens Suzuki) writes: > Hardware disassembly report for Motorola hardware hackers. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Renata Campbell SupraFAXModem 28.8 @ 14,400 bps "Extraordinary claims require extraordinary spectra." From rnovak@rwth-aachen.de Mon Aug 21 09:27:56 1995 Path: ashpoly!cascade!bigsur!rwth-aachen!rnovak From: rnovak@rwth-aachen.de (Rodrigo Novak) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug21.092756.5096@rwth-aachen.de> Date: Mon, 21 Aug 1995 09:27:56 GMT References: <1995Aug18.152956.3370@illinois.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug18.152956.3370@illinois.edu>, jsuzuki@illinois.edu (Jens Suzuki) writes: > Hardware disassembly report for Motorola hardware hackers. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Rodrigo Novak Tape trading list upon request. SASE required for international mail. From mgonzalez@utexas.edu Tue Aug 22 11:08:56 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!mgonzalez From: mgonzalez@utexas.edu (Mikhail González) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug22.110856.2670@utexas.edu> Date: Tue, 22 Aug 1995 11:08:56 GMT References: <1995Aug18.152956.3370@illinois.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Aug18.152956.3370@illinois.edu>, jsuzuki@illinois.edu (Jens Suzuki) writes: > Hardware disassembly report for Motorola hardware hackers. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Mikhail González | mgonzalez@utexas.edu PGP Key fingerprint: 1B2C B0F5 69AC 658C "Keep the channels open." From soliveira@panix.com Thu Aug 24 02:36:56 1995 Path: ashpoly!cascade!bigsur!panix!soliveira From: soliveira@panix.com (Sun-mi Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug24.023656.1651@panix.com> Date: Thu, 24 Aug 1995 02:36:56 GMT References: <1995Aug18.152956.3370@illinois.edu> <1995Aug20.090956.3440@mindspring.com> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Aug20.090956.3440@mindspring.com>, rcampbell@mindspring.com (Renata Campbell) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. -- Sun-mi Oliveira Tape trading list upon request. SASE required for international mail.