Date: Mon, 05 Oct 1998 16:33:21 -0600 From: Sean Kelly <kelly@plutotech.com> To: Chuck Robey <chuckr@mat.net> Cc: FreeBSD-security@FreeBSD.ORG Subject: Re: Java-based Crypto Decoder Ring gets NIST FIPS 140-1 certification (fwd) Message-ID: <36194931.975AA5AC@plutotech.com> References: <Pine.BSF.4.05.9810051545070.15656-100000@picnic.mat.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Chuck Robey wrote: > I'm not asking if the software exists ... if it doesn't (and I know it > doesn't yet) ... well, some of it actually *does* exist! Steve Passe <smp@csn.net> developed some C++ code that interfaces to an iButton (or any Dallas Semiconductor MicroLAN product) using a simple busmaster that you can assemble. Using that code as a basis, I'm developing some Java code that does the same thing, but uses the Dallas Semiconductor DS2485 busmaster. MicroLAN, upon which the iButtons are based, is really nifty: using a single data line, most devices use parasitic power off the bidirectional data line to power themselves. There are remote addressable switches, temperature sensors, and serial numbers. Both of Steve and I use them in our home automation shenanigans. > I can do that part, I'm interested if this really > represents a secure method for me to be able to do something like carry > around my whole 1024 bit private key with me, and use the $15 (yes, it's > only $15!) ISA card to interface to the ring, and tell the system > securely who I am. I want to know if there are any hidden traps to > doing logins that way. I hope not, since I'm planning on using my iButton to arm and disarm the home security system. I get the added bonus of a record of who did it (me, wife, or future kids), and a nearly nil chance that anyone else can disarm it. Go for it! --Sean To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?36194931.975AA5AC>