From mokonkwo@earthlink.net Sat Feb 17 10:28:43 1996 Path: ashpoly!cascade!transat!ukc!fennimore!earthlink!mokonkwo From: mokonkwo@earthlink.net (Mathieu Okonkwo) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb17.102843.2741@earthlink.net> Date: Sat, 17 Feb 1996 10:28:43 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Hardware disassembly report for Motorola hardware hackers. 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. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Mathieu Okonkwo -- EarthLink Network "Do not worship the copy." From jjohansson@uni-hamburg.de Sun Feb 18 10:26:43 1996 Path: ashpoly!cascade!brgate!saturno!uni-hamburg!jjohansson From: jjohansson@uni-hamburg.de (Jens Johansson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb18.102643.4429@uni-hamburg.de> Date: Sun, 18 Feb 1996 10:26:43 GMT References: <1996Feb17.102843.2741@earthlink.net> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Feb17.102843.2741@earthlink.net>, mokonkwo@earthlink.net (Mathieu Okonkwo) 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! Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Jens Johansson Tape trading list upon request. SASE required for international mail. From dsanchez@delphi.com Sun Feb 18 20:38:43 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!delphi!dsanchez From: dsanchez@delphi.com (Dmitri Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Feb18.203843.3887@delphi.com> Date: Sun, 18 Feb 1996 20:38:43 GMT References: <1996Feb17.102843.2741@earthlink.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Feb17.102843.2741@earthlink.net>, mokonkwo@earthlink.net (Mathieu Okonkwo) writes: > Hardware disassembly report for Motorola hardware hackers. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Dmitri Sánchez "When every node is whole, the channel opens." Commodore Amiga 500 (1MB OCS) / SunOS 4.1.4