From tmoreno@tum.de Wed Jan 11 05:50:24 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!tmoreno From: tmoreno@tum.de (Takeshi Moreno) Newsgroups: comp.sys.m68k Subject: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jan11.055024.4767@tum.de> Date: Wed, 11 Jan 1995 05:50:24 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 11 Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. 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'? -- Takeshi Moreno *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From llarsson@mindspring.com Thu Jan 12 13:21:24 1995 Path: ashpoly!cascade!transat!ukc!fennimore!mindspring!llarsson From: llarsson@mindspring.com (Liam Larsson) Newsgroups: comp.sys.m68k Subject: Re: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1995Jan12.132124.3992@mindspring.com> Date: Thu, 12 Jan 1995 13:21:24 GMT References: <1995Jan11.055024.4767@tum.de> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan11.055024.4767@tum.de>, tmoreno@tum.de (Takeshi Moreno) writes: > Tracing the address decoder lines on the motherboard reveals what was supposed to be in socket U14. > Without U14, the board can track the 14.2 Hz carrier, but cannot descramble the binary payload of Nodes 11 through 14. Marcus took that EPROM with him. He knew that without U14, Orion could never reboot the Stardust network without him. -- Liam Larsson Tape trading list upon request. SASE required for international mail.