From kmuller@pipeline.com Fri Feb 17 21:49:31 1995 Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!kmuller From: kmuller@pipeline.com (Karen Müller) Newsgroups: comp.sys.m68k Subject: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb17.214931.8821@pipeline.com> Date: Fri, 17 Feb 1995 21:49:31 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Hardware disassembly report for Motorola hardware hackers. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Did Marcus take the decryption EPROM with him when he left the lab? -- Karen Müller Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From mpetrov@cmu.edu Sat Feb 18 01:50:31 1995 Path: ashpoly!cascade!mxgate!coyoacan!cmu!mpetrov From: mpetrov@cmu.edu (Morag Petrov) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb18.015031.7620@cmu.edu> Date: Sat, 18 Feb 1995 01:50:31 GMT References: <1995Feb17.214931.8821@pipeline.com> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Feb17.214931.8821@pipeline.com>, kmuller@pipeline.com (Karen Müller) writes: > Hardware disassembly report for Motorola hardware hackers. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Morag Petrov | mpetrov@cmu.edu PGP Key fingerprint: C6AD 3B25 5EBD 19B6 "Keep the channels open." From jsuzuki@clari.net Sat Feb 18 16:15:31 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!clari!jsuzuki From: jsuzuki@clari.net (Jen Suzuki) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Feb18.161531.5893@clari.net> Date: Sat, 18 Feb 1995 16:15:31 GMT References: <1995Feb17.214931.8821@pipeline.com> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Feb17.214931.8821@pipeline.com>, kmuller@pipeline.com (Karen Müller) writes: > Hardware disassembly report for Motorola hardware hackers. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Jen Suzuki US Robotics Courier V.34 @ 33,600 bps "5 sigma is a discovery. 7 is a question."