From fito@mindspring.com Thu Aug 24 13:42:08 1995 Path: ashpoly!cascade!brgate!saturno!mindspring!fito From: fito@mindspring.com (Freya Ito) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug24.134208.1161@mindspring.com> Date: Thu, 24 Aug 1995 13:42:08 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. 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. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Freya Ito -- MindSpring Enterprises "Measuring a record you own is listening, not piracy." From bsmirnov@titech.ac.jp Sat Aug 26 08:13:08 1995 Path: ashpoly!cascade!bigsur!titech!bsmirnov From: bsmirnov@titech.ac.jp (Brian Smirnov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug26.081308.1033@titech.ac.jp> Date: Sat, 26 Aug 1995 08:13:08 GMT References: <1995Aug24.134208.1161@mindspring.com> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Aug24.134208.1161@mindspring.com>, fito@mindspring.com (Freya Ito) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. > This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Brian Smirnov Zyxel U-1496E @ 9600 Telebit bps "When every node is whole, the channel opens." From mweber@uu.net Sun Aug 27 16:01:08 1995 Path: ashpoly!cascade!bigsur!uu!mweber From: mweber@uu.net (Mikhail Weber) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug27.160108.1798@uu.net> Date: Sun, 27 Aug 1995 16:01:08 GMT References: <1995Aug24.134208.1161@mindspring.com> <1995Aug26.081308.1033@titech.ac.jp> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug26.081308.1033@titech.ac.jp>, bsmirnov@titech.ac.jp (Brian Smirnov) writes: > If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Mikhail Weber "Marcus is not one man." Commodore Amiga 500 (1MB OCS) / Linux 1.2.13 From tpetrov@netcom.com Tue Aug 29 10:59:08 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!netcom!tpetrov From: tpetrov@netcom.com (Tobias Petrov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Aug29.105908.8051@netcom.com> Date: Tue, 29 Aug 1995 10:59:08 GMT References: <1995Aug24.134208.1161@mindspring.com> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug24.134208.1161@mindspring.com>, fito@mindspring.com (Freya Ito) 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. -- Tobias Petrov | tpetrov@netcom.com PGP Key fingerprint: C160 579E C048 6322 "Keep the channels open."