During a recent discussion about secure crypto device bootstrap and attestation capabilities, I realised that of the three devices for which this was implemented and for which documentation was available (Fortezza, IBM 4758, and Dallas Crypto iButton), I either don't have any documentation for the Crypto iButton or I've filed it under something sufficiently misleading that I can't find it any more. So: Does anyone still have the documentation for the DS1954 Crypto iButton? Note that I specifically mean the DS1954 Crypto iButton before its Javafuxation, which removed the very nice crypto security model and crypto transaction processing/scripting capability. Dallas systematically excised any traces of the pre-Javafuxated version from databooks and web pages, so it'd be a case of someone having a copy archived somewhere. It was a very nice design and I'd like to have some record of it outside the summary I put in my Godzilla security tutorial. (If whoever did the design is reading this, I'd be interested in hearing from them as well). Peter.