From ahernandez@utexas.edu Wed May 03 23:24:26 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!utexas!ahernandez From: ahernandez@utexas.edu (Astrid Hernández) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May03.232426.8952@utexas.edu> Date: Wed, 03 May 1995 23:24:26 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Astrid Hernández | ahernandez@utexas.edu PGP Key fingerprint: 2E54 01A1 2DD1 B545 "Keep the channels open." From tstewart@tum.de Thu May 04 01:38:26 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!tstewart From: tstewart@tum.de (Takeshi Stewart) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May04.013826.3872@tum.de> Date: Thu, 04 May 1995 01:38:26 GMT References: <1995May03.232426.8952@utexas.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995May03.232426.8952@utexas.edu>, ahernandez@utexas.edu (Astrid Hernández) 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! PGP Public key available via finger or upon request. -- Takeshi Stewart US Robotics Courier V.34 @ ISDN 64k bps "Do not worship the copy." From msuzuki@uu.net Thu May 04 16:28:26 1995 Path: ashpoly!cascade!transat!ukc!fennimore!uu!msuzuki From: msuzuki@uu.net (Morag Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May04.162826.9204@uu.net> Date: Thu, 04 May 1995 16:28:26 GMT References: <1995May03.232426.8952@utexas.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995May03.232426.8952@utexas.edu>, ahernandez@utexas.edu (Astrid Hernández) 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! -- Morag Suzuki Tape trading list upon request. SASE required for international mail. From mgirard@purdue.edu Thu May 04 21:43:26 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!mgirard From: mgirard@purdue.edu (Marisol Girard) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May04.214326.5087@purdue.edu> Date: Thu, 04 May 1995 21:43:26 GMT References: <1995May03.232426.8952@utexas.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995May03.232426.8952@utexas.edu>, ahernandez@utexas.edu (Astrid Hernández) 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! -- Marisol Girard *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From mgonzalez@panix.com Fri May 05 17:24:26 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!panix!mgonzalez From: mgonzalez@panix.com (Mateo González) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995May05.172426.8816@panix.com> Date: Fri, 05 May 1995 17:24:26 GMT References: <1995May03.232426.8952@utexas.edu> <1995May04.162826.9204@uu.net> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1995May04.162826.9204@uu.net>, msuzuki@uu.net (Morag Suzuki) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Mateo González | mgonzalez@panix.com PGP Key fingerprint: 5C1B 488F 3AA1 0130 "Keep the channels open."