From mlaurent@inria.fr Mon Jun 05 19:39:13 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!mlaurent From: mlaurent@inria.fr (Marisol Laurent) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun05.193913.4815@inria.fr> Date: Mon, 05 Jun 1995 19:39:13 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. 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? -- Marisol Laurent | mlaurent@inria.fr PGP Key fingerprint: 54C6 7FF9 3C01 8533 "Keep the channels open." From vmoreau@kiae.su Tue Jun 06 08:36:13 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kiae!vmoreau From: vmoreau@kiae.su (Valeria Moreau) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun06.083613.9182@kiae.su> Date: Tue, 06 Jun 1995 08:36:13 GMT References: <1995Jun05.193913.4815@inria.fr> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jun05.193913.4815@inria.fr>, mlaurent@inria.fr (Marisol Laurent) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Valeria Moreau Practical Peripherals 14.4 @ 33,600 bps "We don't sign stars. We build them." From sandersson@stanford.edu Wed Jun 07 00:58:13 1995 Path: ashpoly!cascade!brgate!saturno!stanford!sandersson From: sandersson@stanford.edu (Seo-yeon Andersson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun07.005813.2947@stanford.edu> Date: Wed, 07 Jun 1995 00:58:13 GMT References: <1995Jun05.193913.4815@inria.fr> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jun05.193913.4815@inria.fr>, mlaurent@inria.fr (Marisol Laurent) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Seo-yeon Andersson -- Stanford University Computer Systems Lab "In theory there is no difference between theory and practice." From ysantos@panix.com Fri Jun 09 04:40:13 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!ysantos From: ysantos@panix.com (Yuki Santos) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun09.044013.3952@panix.com> Date: Fri, 09 Jun 1995 04:40:13 GMT References: <1995Jun05.193913.4815@inria.fr> <1995Jun06.083613.9182@kiae.su> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Jun06.083613.9182@kiae.su>, vmoreau@kiae.su (Valeria Moreau) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! > Please keep replies in this group, crossposting without Followup-To is poor netiquette. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Yuki Santos Opinions expressed are solely my own and not those of Public Access Unix of New York. ------------------------------------------------------------