chebe: (HandAgainstGlass)
I bought a touchatag ages ago, but couldn't get it installed properly under linux (and when I got it working under Windows the supplied software required that I create an account, which I really dislike). It's no longer available to purchase (except perhaps through resellers with old stock), but it is a RFID-tag reader (that came with a few RFID-tags) and was part of the 'Internet-of-Things' effort. Although anyone I know who has one didn't get it for that reason. It lay gathering dust in the back of my mind until I suddenly had a project idea. But first, I had to get the darned thing to work!

Here's how I went about it under Fedora 18.

Pre-requisites (you probably don't need all these, but I have ambitions);
yum install pcsc-*
yum install libusb libusb-devel
yum install libnfc*


Install the driver;
wget http://www.acs.com.hk/drivers/eng/ACR122_Driver_Lnx_Mac10.5_10.6_10.7_104_P.zip
unzip ACR122_Driver_Lnx_Mac10.5_10.6_10.7_104_P.zip
cd ACR122_Driver_Lnx_Mac10.5_10.6_10.7_104_P/
tar -jxvf acsccid-1.0.4.tar.bz2
cd acsccid-1.0.4/
./configure
make


Check it's working;
lsusb
Lists it as Advanced Card Systems, Ltd.

nfc-list
It should list your reader, if not, try pcsc_scan, if still no luck run pcscd -f.
If at this point it's complaining that your firmware is bogus you need to edit the config file to skip the version checking, for me the file path is;
vim /usr/lib64/pcsc/drivers/ifd-ccid.bundle/Contents/Info.plist

Locate "ifdDriverOptions" and turn the "0x0000" value into 0x0005 (0x0004 might work too). Save and exit, then restart the daemon. I had trouble getting it back up again, so I rebooted.

Run the checks again to see that it is now picking up the device properly.

Use it;
This varies greatly depending on what you want to do. One of the alternatives recommended on the touchatag site is iotope. I downloaded it (to run in standalone node mode), unzipped, and ran the bash script provided (it's Java based). Then you open a browser and go to http://localhost:4242/ui/. Then simply put a RFID-tag in the reader and (if compatible) see the details show up.


I pieced together this information from two sources;
1. An archlinux wiki page which suggests another application, and
2. A backtrack linux page that suggests an entirely different application and use.

This is probably old-hat to those of you it interests, but I've finally gotten it to work, so I'm putting it here against my forgetting in future.
chebe: (Default)
Do I know how to make a wallet or bag? No, but I'm going to make one anyway. Do I intend to use a pattern or instructions of any kind? No, I'm just going to figure it out as I go along. This is what I consider the Synchronous Hackathon Challenges to be about; jumping in and making it up as you go along! This month, the weekend just gone, was the Money Bag Challenge.

I've had the idea to try my hand at making small bags recently, and have been examining the ones already in my possession for ideas on how to construct them, so this Challenge was the kick I needed to get started. But I just can't seem to do just one thing; so as well as making a wallet/bag for the first time, I've added RFID-shielding, and internal LEDs!

Details... )

Passport Cover

2011-Jan-07, Friday 08:24 pm
chebe: (StormyThoughts)
Recently in college I studied a paper on RFID tags, which reviewed, poked, and prodded the security of a couple of newer tags. Well, it got me concerned. I pulled out my somewhat dusty copy of 'Switch Craft' and pulled up the project on making passport covers.

How to )

The idea is that the tin-foil layer will create a Faraday cage around your passport while it's in the holder. There is some conflicting research as to whether thin sheets of metal that close to UHF RFID tags actually dampens the signal, as it does for HF tags, or whether it actually amplifies the signal. Until I get a spare few thousand euros I won't be able to buy the readers and test for myself, so as with most things, buyer beware. I'm not especially worried, but that's because I still have the old pre-RFID passport for a couple more years. Hopefully I'll have this technique perfected by then.
Page generated 2017-Mar-24, Friday 11:59 am
Powered by Dreamwidth Studios