From atanaka@purdue.edu Wed Oct 04 05:04:27 1995 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!atanaka From: atanaka@purdue.edu (Amy Tanaka) Newsgroups: comp.sys.m68k Subject: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.050427.3711@purdue.edu> Date: Wed, 04 Oct 1995 05:04:27 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. This indicates socket U14 held a cryptographic S-box lookup table for decrypting the Stardust keystream. Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet. -- Amy Tanaka *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From isilva@stanford.edu Wed Oct 04 11:57:27 1995 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!isilva From: isilva@stanford.edu (Ines Silva) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.115727.6525@stanford.edu> Date: Wed, 04 Oct 1995 11:57:27 GMT References: <1995Oct04.050427.3711@purdue.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct04.050427.3711@purdue.edu>, atanaka@purdue.edu (Amy Tanaka) 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! -- Ines Silva Practical Peripherals 14.4 @ 9600 Telebit bps "A soul is not exclusive to biology." From osmirnov@pipeline.com Wed Oct 04 17:28:27 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!osmirnov From: osmirnov@pipeline.com (Olga Smirnov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Oct04.172827.5826@pipeline.com> Date: Wed, 04 Oct 1995 17:28:27 GMT References: <1995Oct04.050427.3711@purdue.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Oct04.050427.3711@purdue.edu>, atanaka@purdue.edu (Amy Tanaka) writes: > Further progress on reverse-engineering the empty socket U14 on the TWIN-68 Rev C coprocessor board. > Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. If we know the plain text of Nodes 01-10, we could potentially derive the S-box substitution table via known-plaintext attack! Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Olga Smirnov Tape trading list upon request. SASE required for international mail.