Make an RFID-proof wallet 238
99luftballon writes "If, like me, you're more than a little concerned about the privacy aspects of RFID there's a useful enthusiast's web page on making your own RFID-blocking wallet. OK, it's never going to win any prizes for beauty or garner fashion awards but should be effective and seems perfectly practical. "
Effective, but hardly practical. (Score:5, Interesting)
Article summary is a trifle misleading...I was hoping to see a modification to a real wallet, not a wallet made out of duct tape with foil added.
It seems to me that I could simply line the pockets of my actual wallet with foil...this would have several benefits over the duct-tape wallet:
I'll admit that the duct tape wallet has a certain Red Green-esque appeal, but I'd rather have a more practical solution.
Re:Effective, but hardly practical. (Score:5, Funny)
Re:Effective, but hardly practical. (Score:2)
Effective And Practical (Score:2)
Re:Effective, but hardly practical. (Score:2)
For some Slashdotters, this is already too late.
Re:Effective, but hardly practical. (Score:4, Informative)
Re:Effective, but hardly practical. (Score:2, Offtopic)
Re:Duct-tape wallet (Score:3, Informative)
Also, commercially produced inserts can be integrated into the wallet for excellent multiple card/picture storage and acetate can be combined with ducttape to create a clear pocket.
Re:Effective, but hardly practical. (Score:4, Interesting)
it would also last about five hours before wearing and needing replacement. I'd wager a properly constructed duct tape wallet with the foil embedded would last an order of magnitude longer than a quick fix foil solution.
It's all a moot point anyway as RFID technology will quickly pass the point where simply tin foil will prevent remote snooping.
Re:Effective, but hardly practical. (Score:3, Informative)
Last I checked, a Faraday cage blocks radio waves, a critical component of RADIO Frequency Identification...
Re:Effective, but hardly practical. (Score:3, Funny)
Mr. Bush said: "We're working. We're working hard, passing new laws to make sure our country is safe from terrorists. Those old laws were getting in our way. We need to prevent them from brining nucular devices into our country."
When asked about the new bill proposal by the President, the head of the National Science Foundation hung his head and wa
Re:Effective, but hardly practical. (Score:3, Funny)
wow, an order of magnitude longer, eh? that's over two whole days! sign me up!
Re:Effective, but hardly practical. (Score:3, Interesting)
I think we are rapidly heading towards the sad day that if you are out in public WITHOUT a bunch of RFID tags broadcasting your ID at every portal you walk through that will flag you as a "person of interest" and lead to you being taken aside by security for questioning and possible detention. There will no doubt be other biometric measures to spot check and validate you are wear
Re:Effective, but hardly practical. (Score:2, Informative)
Re:Effective, but hardly practical. (Score:4, Informative)
Not likely, actually. My wife is a former TSA employee (who couldn't stay on due to a health condition which precluded her from passing the now-required military medical examination), and from I've discussed with her, it actually isn't likely that you would lose the wallet. Metal objects can be taken on an airplane without too much difficulty as long as they can't be used as a stabbing weapon or a gun or something like that. For example, a wedding ring would definitely set off the metal detectors, but there's no reason you couldn't take it on the plane because it can't be used to kill anyone (well, it can for a specially-trained individual, but that's another story).
In fact, with the recent security changes [washingtonpost.com] made by DHS, it isn't likely that you would even get a small pocket knife taken from you anymore.
Re:Effective, but hardly practical. (Score:2)
It's a tin foil hat ... (Score:2)
Re:Effective, but hardly practical. (Score:3, Informative)
Probably start here [wikipedia.org], then head here [rsasecurity.com] for some background on what is being done here.
Re:Effective, but hardly practical. (Score:3, Funny)
Why would I want to do that? (Score:5, Insightful)
Which do you value? (Score:2)
Personally, I predict men will start carrying RFID-blocking satchels with all their gadgets and cards and whatnot inside. "It's European!"
Re:Which do you value? (Score:2, Insightful)
And, in reality, it doesn't even matter, as the cards keep the value on themselves via smart chips. At worst, someone will erase my card! Oh no!
Re:Which do you value? (Score:2)
Re: (Score:2, Informative)
Re:Which do you value? (Score:2)
and nothing else in my wallet has an RFID chip in it...
These things don't have much of a range...
...yet.
Kind of an important word that was omitted thrice.
Re:Which do you value? (Score:2)
OF course thats why they are encrypted...
Note: you can extend the range on either end.
Re:Which do you value? (Score:2)
Limited range? Wasn't there are article posted
Better solution. (Score:2)
Re:Better solution. (Score:2)
Yes I am kidding... maybe.
Re:Why would I want to do that? (Score:2)
The Artist's Medium (Score:5, Informative)
Now, there may be some kind of duct tape out there that avoids this issue, I'm not sure. Maybe these guys [octanecreative.com] would know which brand is best but my wallet nearly destroyed my license at the time. Essentially, you need to look for duct tape that will adequately hold against itself when you need it to. After years of sliding it in and out of my back pocket and sitting on it, the tape started to smear against the shiny part and separate. As a result, the goo (bottom ply) and meshing (middle ply) were slipping out from underneath the shiny part (top ply) and getting goo all over my cards and ID.
Essentially, it comes down to how many mils of adhesive you are working with. A lot of times, the more expensive stuff will have around 12 mils of glue which means that it is ideal for construction. However, this may result in more sliding and more goo seepage in your wallet. I would recommend something in between the range of 7.5 and 12 mils [askthebuilder.com]. You're not going to be concerned about tensile strength, just thickness and what the coating is on the back. If the coating is non bonding to the adhesive used, you don't want that tape!
The actual design can be very much up to you although the article does provide a link to a nice standard model. I would suggest to try to use as many whole pieces as possible and when you're thinking about the design, rely on adhesive/adhesive bonds instead of adhesive/polyethylene since the cohesion is vastly different.
So if you venture on this, for the love of god, RESEARCH THE TAPE! Honestly, I estimate the life of these things to be a month unless you want to also pay for a new license often. I think back to my dad's wallet which was this old beat up piece of leather with its seams showing. But he's had it as long as I can remember and that thing has taken a beating. There's a reason why wallets are made from leather.
Remember, if you can't fix something with duct tape and WD-40, you're just not trying hard enough
If it's not stuck and it's supposed to be, duct tape it. If it's stuck and it's not supposed to be, WD-40 it. If it's not broken--keep me away from it!
Re:The Artist's Medium (Score:2, Insightful)
uhhhh...self defeating it seams (Score:5, Insightful)
Why not just avoid getting the objects if you don't want to use them?
Re:uhhhh...self defeating it seams (Score:2)
Re:uhhhh...self defeating it seams (Score:5, Interesting)
Because eventually, you won't have that choice. Passports, Driver's licenses, etc, will all require RFID tags.
Better solution (Score:2)
After all, how often do you pull out your drivers license anyway? Maybe once every two months? Even less? Who cares if it is wrapped in foil?
Re:Better solution (Score:2)
As to how often I pull out my DL -- quite a bit, when I was younger and went out to the bars often. Young smokers may even pull it out daily.
I think it would be much easier, and cheaper, to have banket security in this case -- i.e., you need posit
Re:Better solution (Score:2)
> security in this case -- i.e., you need positive approval from
> me before reading any of my data.
Or be in line behind you when you are buying cigarettes.
Re:Better solution (Score:2)
One possibility -- though it would never be implemented:
Personal IDs are in an RFID-proof case (credit-card sized). Special hardware needed to unlock the case, which then reads the tag within an RFID-proof box. Exterior display show the necessary information, authorizes the transaction, or whatever. The RFID tag is never 'visible' to outside readers, the black box does its job. Still has security
Re:Better solution (Score:2)
Re:Better solution (Score:2)
Also, if the smart card requires a copper connection, is it really RFID -- does the connection just supply power for the broadcast? And if so, i
Re:Better solution (Score:2)
Whether it's a smart Metrocard, or Gascard, or whatever it is... when I'm not using it for it's intended purpose, it should not be readable at all.
I think it would be much easier, and cheaper, to have banket security in this case -- i.e., you need positive approval from me before reading any of my data.
Cheaper maybe, but not easier or faster. The whole freaking point of having a smartpass or metrocard is so that you don't have to take it out of your wallet, you just wave your wallet in front of the reade
No other choice (Score:2)
Because within a few years I will have no choice but to use RFID-tagged cards if I want to participate in society in even a remotely normal manner.
Re:uhhhh...self defeating it seams (Score:2)
Re:uhhhh...self defeating it seams (Score:2)
Because you don't have a choice? Americans are bring forced to carry "papers" to travel, and them have RFID's, and money is also implanted with them, I'm sure there are more things we do not know about like credit cards to track how and who people move about when shopping at walmart.
RFID proof - pah, we need women proof wallets (Score:5, Funny)
After securing your wallet against the female gender, RFID should just bounce off by default.
Re:RFID proof - pah, we need women proof wallets (Score:5, Funny)
Re:RFID proof - pah, we need women proof wallets (Score:2)
Yay! A tinfoil wallet... (Score:2, Insightful)
I really don't get the paranoia about this RFID stuff, they mostly seem like fancy barcodes.
Re:Yay! A tinfoil wallet... (Score:5, Funny)
Re:Yay! A tinfoil wallet... (Score:3, Insightful)
Fancy barcodes that have your personal identifying information them, and can be scanned surreptitiously by any lurker with the right hardware & software.
It's kind of hard not to notice someone trying to scan the barcode tattooed on your neck (plus, you could just wear a turtleneck). It's when they scan the RFID tag in your wallet that you'll never know when THEY are watching you.
Re:Yay! A tinfoil wallet... (Score:2)
Re:Yay! A tinfoil wallet... (Score:2)
Re:Yay! A tinfoil wallet... (Score:2)
Re:Yay! A tinfoil wallet... (Score:2)
Re:Yay! A tinfoil wallet... (Score:2)
> centimetres, I think I might notice someone trying to put a
> piece of electronic equipment to my trouser pocket.
The range is determined by the reader, not the chip. That "few cm" is the guaranteed range of the manufacturers (fairly low power) readers. Last I saw the record, using a homebrew reader, was 65 feet. This is radio we are talking about. There is no firm range limit.
Re:Yay! A tinfoil wallet... (Score:2)
Greatest Invention Ever (Score:3, Funny)
I'm sure we'll be replacing our tinfoil hats with duct tape hats one of these days.
I had a foil wallet on /. a year ago (Score:4, Interesting)
http://www.angelfire.com/mt/woodmtn/insight.html [angelfire.com] [warning Lycos ads]
Was in my signature nearly a year ago [April 7 2005]
"...a new item the FOIL'ID AGAIN(TM) which is a foil wallet for passports and other RFID infested documents. RFID is cool in food packages, and books, but in ID it's just a bad idea. Someone could pick your pocket without your documents ever leaving your wallet, unless of course you invest in my FOIL'ID AGAIN(TM) product
Shoppers Card? Ironic or silly? (Score:5, Funny)
Re:Shoppers Card? Ironic or silly? (Score:2)
Shoppers card + anonymity is doable. (Score:2)
Come on, be a hacker...
Your ID:
My Name
123 Know way
Anonymous, PA 15213
555 555 1212
They may know that I shop somewhere, and what I buy - but not who I really am (unless I pay by CC)
I'd give you my $.02, but then you'd have my fingerprints
Oh sure that's true.. (Score:2)
Tinfoil wallet? (Score:3, Funny)
Excellent (Score:3, Funny)
We're marketing a line of trend-conscious tinfoil hats with interior pockets for all your RFID-taged personal items. So far, we've come up with a few prototypes for different markets:
(1) Baseball cap: The Toyota "Psyon" (get it?) of TFHs -- stylish and cost-conscious. We expect this to be our biggest seller, since the male 15-24 demographic is most likely to be aware of the dangers apparent with RFID; they are also most likely to perpetuate a trend invo
I hate to lower myself to stereotyping, but... (Score:3, Funny)
Tinfoil-level black helicopter paranoia? Check.
Frequent buffet diner card in quick-draw position in wallet? Check.
Ladies and gentlemen, what we have here is a tinfoil-hat fatty who thinks the Smoking Man is after him. Imagine Fox Mulder as played by Chris Farley.
Don't expose yourself (Score:4, Insightful)
http://www.stockmarketgarden.com/ [stockmarketgarden.com]
Re:Don't expose yourself (Score:2)
Seeing this is slashdot and all, I'll second that remark
Re:Don't expose yourself (Score:2)
A wallet like this seems great.
Re:Don't expose yourself (Score:2)
http://www.stockmarketgar [stockmarketgarden.com]
Re:Don't expose yourself (Score:2)
Wouldn't... (Score:2, Insightful)
A more practical approach (Score:5, Insightful)
A more practical approach: Normal Wallet and Foil (Score:3, Interesting)
Why not just line a nice wallet with foil? The quick and dirty way is to put a large piece of foil in the billfold section. If you want to get fancy, unstitch the liner and shove the foil between the leather and the liner, then stitch it back. This might take a little longer than making a wallet from duct tape, but it will look much nice
Re:A more practical approach: Normal Wallet and Fo (Score:2)
Re:A more practical approach (Score:2)
I think it must be some NSA ploy. After all MIT thinks that foil hats help the NSA read brains!
Use a small metal box for your RFID cards (Score:5, Funny)
I also transfered all my credit cards to plain blank cards by copying the magnetic card stripes on to blanks that I buy through a Panamanian company in bulk. Unfortunately, this has two disadvantages:
Thankfully, for me this is generally never a problem, because I'm almost always stay at home in my home-made Faraday cage, in order to protect myself from the NSA mind control beams.
Re:Use a small metal box for your RFID cards (Score:2)
freezer bag (Score:2, Insightful)
Re:freezer bag (Score:2)
What Would MacGyver Do? (Score:2, Informative)
Serious need here (Score:3, Insightful)
Re:Serious need here (Score:2)
Re:Serious need here (Score:2)
> scanned twice at the same moment?
Of course. It would even be possible to build a "passive" scanner that does not transmit any rf to excite the chip but instead waits for another scanner to do so. This would avoid detection by monitors designed to detect "unauthorized" scanners.
> What if I took an RFID scanner and lurked around a stationary
> scanner, would it be possible for me to pick up people's RFID
> info?
If you used a n
Abandoning research? (Score:3, Funny)
After so many years of research in the field of tin foil hats [stopabductions.com], why are they going for duct tape?
Where's the leather?
Where's the Velostat [stopabductions.com] TM?
Made from recycled tinfoil hats (Score:2)
I've finally found a use for all those worn-out tinfoil hats!
Now I just need to figure out how to mod the process to protect against pickpockets and muggers?
British ID cards will contain RFID chips (Score:4, Informative)
Most people don't know how scary Britain has become in the last 12 months. In addition to their other Nazi laws [bristol-no2id.org.uk], only yesterday it was leaked that Blair is going to tap MPs phones [spy.org.uk].
Re:British ID cards will contain RFID chips (Score:2)
Re:British ID cards will contain RFID chips (Score:2)
And bombs targetted at specific RFIDs should be picked up by airport security.
But you aren't likely to carry your passport around with you at all times.
You also have a constitution. We only have a Human Rights Act that the Government has already threatened to revoke.
You still haven't read the link. Your Government isn't proposing creating a Surveillance State. Ours is.
Do some research, I doubt I'll bother replying otherwise.
Do it like me to protect you from RFID .. (Score:2)
Little known phacts: In 1974, the Agency issued tinfoil hats to all its field agents
Muji are years ahead (Score:2)
If you use USD then you may find the bills too long and thin to conveniently fold to use the card case as a wallet, but it works well for GBP, EURO & NZD.
(Caveat, I don't use it for it's RFID stopping abilities but for its ab
What do you get if you combine... (Score:4, Funny)
Or, easier yet.. (Score:2)
Wallet closed, RFID defeated.
Need to RFID your way through a turnstile or into work? Open the wallet.
Need to RFID your way through a lot of doors? Fold the wallet into an S shape with the pocket holding the RFID card out, and stick it back into your pants. The RFID cards in the center pockets and other side will still be wrapped in foil, and unreadable.
Security industry. (Score:5, Interesting)
Re:Security industry. (Score:2)
I'm not saying we should ignore it and hope it goes away, by all means. I'm all for privacy myself (And I install high end CCTV eq
Lets get technical (Score:3, Insightful)
What does it actually take to stop RFID from reading a card. What materials, what thickness, goes it need to enclose completly or not.
Is there a way to generate interference so I could have a constant empty field around my wallet? A card that constantly broadcasts fake info?
Would such a thing be legal? Is the spectrum this works in free?
Oh okay, why should you want to? BECAUSE!
Been There Done That (Score:2)
ID Number != Personal Info (Score:2)
RFID only contains a number, like a barcode. Anyone stealing that number would have to have access to the database that links those numbers to an identity in order to obtain that information, which of course, needs to be secured. But I'm already linked to databases of information through numbers.
All that information is a
I predict (Score:2)
Re:There's one problem... (Score:2)