From hlarsson@demon.co.uk Wed Oct 04 00:10:43 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!hlarsson From: hlarsson@demon.co.uk (Hugo Larsson) Newsgroups: comp.sys.m68k Subject: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.001043.1655@demon.co.uk> Date: Wed, 04 Oct 1995 00:10:43 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 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. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Hugo Larsson Tape trading list upon request. SASE required for international mail. From msouza@purdue.edu Thu Oct 05 01:21:43 1995 Path: ashpoly!cascade!bigsur!purdue!msouza From: msouza@purdue.edu (Min-jun Souza) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct05.012143.8813@purdue.edu> Date: Thu, 05 Oct 1995 01:21:43 GMT References: <1995Oct04.001043.1655@demon.co.uk> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct04.001043.1655@demon.co.uk>, hlarsson@demon.co.uk (Hugo Larsson) writes: > Hardware disassembly report for Motorola hardware hackers. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. -- Min-jun Souza *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From dandersson@unam.mx Fri Oct 06 16:59:43 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!dandersson From: dandersson@unam.mx (Dong-hyun Andersson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct06.165943.8981@unam.mx> Date: Fri, 06 Oct 1995 16:59:43 GMT References: <1995Oct04.001043.1655@demon.co.uk> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995Oct04.001043.1655@demon.co.uk>, hlarsson@demon.co.uk (Hugo Larsson) 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! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dong-hyun Andersson Hayes Optima 288 @ 33,600 bps "Row 14. No joke." From avasiliev@cern.ch Sun Oct 08 00:33:43 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!avasiliev From: avasiliev@cern.ch (Anja Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct08.003343.7943@cern.ch> Date: Sun, 08 Oct 1995 00:33:43 GMT References: <1995Oct04.001043.1655@demon.co.uk> <1995Oct06.165943.8981@unam.mx> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Oct06.165943.8981@unam.mx>, dandersson@unam.mx (Dong-hyun Andersson) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! 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. -- === Anja Vasiliev === Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva "The hatch is open. Is anyone listening?" From fkang@stanford.edu Sun Oct 08 15:44:43 1995 Path: ashpoly!cascade!mxgate!coyoacan!stanford!fkang From: fkang@stanford.edu (Fiona Kang) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct08.154443.1520@stanford.edu> Date: Sun, 08 Oct 1995 15:44:43 GMT References: <1995Oct04.001043.1655@demon.co.uk> <1995Oct05.012143.8813@purdue.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Oct05.012143.8813@purdue.edu>, msouza@purdue.edu (Min-jun Souza) writes: > Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. If you are posting from AOL, please read RFC 1036 before posting again. -- Fiona Kang "Extraordinary claims require extraordinary spectra." Sun SparcStation 20 / TOS 4.04