From bsantos@panix.com Thu Jun 22 06:31:17 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!panix!bsantos From: bsantos@panix.com (Brian Santos) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun22.063117.9753@panix.com> Date: Thu, 22 Jun 1995 06:31:17 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 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. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- === Brian Santos === Dept of Electrical Engineering, Public Access Unix of New York "The hatch is open. Is anyone listening?" From npopov@purdue.edu Sat Jun 24 01:40:17 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!purdue!npopov From: npopov@purdue.edu (Nadia Popov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun24.014017.9935@purdue.edu> Date: Sat, 24 Jun 1995 01:40:17 GMT References: <1995Jun22.063117.9753@panix.com> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun22.063117.9753@panix.com>, bsantos@panix.com (Brian Santos) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Nadia Popov "A soul is not exclusive to biology." Commodore Amiga 500 (1MB OCS) / System 7.5.1 From amoreno@uni-hamburg.de Sun Jun 25 04:17:17 1995 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!amoreno From: amoreno@uni-hamburg.de (Anja Moreno) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun25.041717.9305@uni-hamburg.de> Date: Sun, 25 Jun 1995 04:17:17 GMT References: <1995Jun22.063117.9753@panix.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jun22.063117.9753@panix.com>, bsantos@panix.com (Brian Santos) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! -- Anja Moreno US Robotics Courier V.34 @ 9600 Telebit bps "Extraordinary claims require extraordinary spectra." From heriksson@utexas.edu Sun Jun 25 06:39:17 1995 Path: ashpoly!cascade!brgate!saturno!utexas!heriksson From: heriksson@utexas.edu (Hana Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun25.063917.6806@utexas.edu> Date: Sun, 25 Jun 1995 06:39:17 GMT References: <1995Jun22.063117.9753@panix.com> <1995Jun24.014017.9935@purdue.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun24.014017.9935@purdue.edu>, npopov@purdue.edu (Nadia Popov) 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! -- === Hana Eriksson === Dept of Electrical Engineering, University of Texas at Austin "Hardware is temporary. The signal survives." From chughes@mindspring.com Tue Jun 27 05:50:17 1995 Path: ashpoly!cascade!mxgate!coyoacan!mindspring!chughes From: chughes@mindspring.com (Camila Hughes) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jun27.055017.7818@mindspring.com> Date: Tue, 27 Jun 1995 05:50:17 GMT References: <1995Jun22.063117.9753@panix.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Jun22.063117.9753@panix.com>, bsantos@panix.com (Brian Santos) 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! -- Camila Hughes *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0