Re: RFID using LFTX/LFRX (Was [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation)

2008-09-07 Thread ChoJin
On Sep 7, 2008, at 6:58 AM, Michael Ossmann wrote: On Sun, Sep 07, 2008 at 02:02:35AM +0200, ChoJin wrote: I tried a very simple test: - two loops of wire, one for the LFTX (A slot, antenna TXA) and one for the LFRX (slot B, antenna RXB) - generating the sinus wave using usrp_siggen.py -f

Re: RFID using LFTX/LFRX (Was [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation)

2008-09-06 Thread ChoJin
On Aug 16, 2008, at 10:52 PM, Michael Ossmann wrote: On Sat, Aug 16, 2008 at 08:44:56PM +0200, [EMAIL PROTECTED] wrote: As far as I understand, passive RFIDs communicate backs to the reader by consuming more or less power from the incoming radio wave (please correct me if I'm wrong). How o

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-16 Thread gnuradio
On Aug 16, 2008, at 10:52 PM, Michael Ossmann wrote: On Sat, Aug 16, 2008 at 08:44:56PM +0200, [EMAIL PROTECTED] wrote: As far as I understand, passive RFIDs communicate backs to the reader by consuming more or less power from the incoming radio wave (please correct me if I'm wrong). How o

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-16 Thread gnuradio
On Aug 12, 2008, at 1:53 AM, Michael Ossmann wrote: I checked the defcon cd, and it contains the slides but no code. I'm guessing we won't see any code until the legal challenge is resolved (unless someone has a mirror?). Of course, with the slides and information from other researchers, it mi

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-12 Thread Eric Cottrell
- Start Original Message - Sent: Mon, 11 Aug 2008 17:12:43 -0700 From: Dan Halperin <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > On Aug 11

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread Daniel O'Connor
On Tue, 12 Aug 2008, Dan Halperin wrote: > On Aug 11, 2008, at 4:58 PM, Daniel O'Connor wrote: > > On Mon, 11 Aug 2008, Philip Balister wrote: > >> New appication for USRP+GNU radio, free subway rides :) > >> > >> http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf > >> > >> Well, at le

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread Dan Halperin
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Aug 11, 2008, at 4:58 PM, Daniel O'Connor wrote: On Mon, 11 Aug 2008, Philip Balister wrote: New appication for USRP+GNU radio, free subway rides :) http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf Well, at least until people le

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread Daniel O'Connor
On Mon, 11 Aug 2008, Philip Balister wrote: > New appication for USRP+GNU radio, free subway rides :) > > http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf > > Well, at least until people learn to deploy secure systems. There's also.. http://venturebeat.com/2008/08/08/defcon-excuse-m

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread gnuradio
On Aug 11, 2008, at 2:45 PM, Philip Balister wrote: New appication for USRP+GNU radio, free subway rides :) http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf Well, at least until people learn to deploy secure systems. Anyway manage to find the code they did for the usrp? (and

Re: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread Eric Cottrell
cuss-gnuradio@gnu.org" Subject: [Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation > New appication for USRP+GNU radio, free subway rides :) > > http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf > > Well, at least until people le

[Discuss-gnuradio] GNU Radio mention in DEFCON subway presentation

2008-08-11 Thread Philip Balister
New appication for USRP+GNU radio, free subway rides :) http://www-tech.mit.edu/V128/N30/subway/Defcon_Presentation.pdf Well, at least until people learn to deploy secure systems. Philip ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http