From tkang@illinois.edu Tue Nov 21 07:57:21 1995 Path: ashpoly!cascade!bigsur!illinois!tkang From: tkang@illinois.edu (Tyler Kang) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Nov21.075721.5016@illinois.edu> Date: Tue, 21 Nov 1995 07:57:21 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Did Marcus take the decryption EPROM with him when he left the lab? -- Tyler Kang "There are 14 nodes and only 10 countries. Count again." Atari Falcon 030 / TOS 4.04 From tnovak@utexas.edu Thu Nov 23 08:13:21 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!tnovak From: tnovak@utexas.edu (Thiago Novak) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Nov23.081321.6139@utexas.edu> Date: Thu, 23 Nov 1995 08:13:21 GMT References: <1995Nov21.075721.5016@illinois.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Nov21.075721.5016@illinois.edu>, tkang@illinois.edu (Tyler Kang) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- === Thiago Novak === Dept of Electrical Engineering, University of Texas at Austin "Hardware is temporary. The signal survives." From mrodriguez@mindspring.com Fri Nov 24 20:09:21 1995 Path: ashpoly!cascade!mxgate!coyoacan!mindspring!mrodriguez From: mrodriguez@mindspring.com (Mike Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Nov24.200921.9683@mindspring.com> Date: Fri, 24 Nov 1995 20:09:21 GMT References: <1995Nov21.075721.5016@illinois.edu> <1995Nov23.081321.6139@utexas.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Nov23.081321.6139@utexas.edu>, tnovak@utexas.edu (Thiago Novak) writes: > Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. Using an S-box in a 27256 EPROM for single-cycle hardware substitution was standard military cipher practice in 1984. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Mike Rodríguez | mrodriguez@mindspring.com PGP Key fingerprint: A1BA 089A 77D5 FFF7 "Keep the channels open." From bmoreau@netcom.com Sun Nov 26 19:21:21 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!netcom!bmoreau From: bmoreau@netcom.com (Brian Moreau) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Nov26.192121.6684@netcom.com> Date: Sun, 26 Nov 1995 19:21:21 GMT References: <1995Nov21.075721.5016@illinois.edu> <1995Nov23.081321.6139@utexas.edu> <1995Nov24.200921.9683@mindspring.com> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Nov24.200921.9683@mindspring.com>, mrodriguez@mindspring.com (Mike Rodríguez) 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. -- Brian Moreau -- NETCOM On-Line Communication Services "5 sigma is a discovery. 7 is a question."