From livanov@cmu.edu Thu Jan 04 06:01:23 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!livanov From: livanov@cmu.edu (Liam Ivanov) Newsgroups: comp.sys.m68k Subject: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan04.060123.9689@cmu.edu> Date: Thu, 04 Jan 1996 06:01:23 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 11 Hardware disassembly report for Motorola hardware hackers. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. 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? -- Liam Ivanov "We don't sign stars. We build them." Pentium 90 (OS/2 Warp) / TOS 4.04 From eweber@rwth-aachen.de Fri Jan 05 04:02:23 1996 Path: ashpoly!cascade!brgate!saturno!rwth-aachen!eweber From: eweber@rwth-aachen.de (Emi Weber) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan05.040223.7096@rwth-aachen.de> Date: Fri, 05 Jan 1996 04:02:23 GMT References: <1996Jan04.060123.9689@cmu.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jan04.060123.9689@cmu.edu>, livanov@cmu.edu (Liam Ivanov) 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. -- Emi Weber "Do not worship the copy." NeXTstation Turbo Color / TOS 4.04 From beriksson@stanford.edu Sat Jan 06 23:48:23 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!stanford!beriksson From: beriksson@stanford.edu (Bill Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan06.234823.3654@stanford.edu> Date: Sat, 06 Jan 1996 23:48:23 GMT References: <1996Jan04.060123.9689@cmu.edu> <1996Jan05.040223.7096@rwth-aachen.de> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jan05.040223.7096@rwth-aachen.de>, eweber@rwth-aachen.de (Emi Weber) 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. -- Bill Eriksson *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0