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Chase Deploying "Touchless" Credit Cards

Rick Zeman writes "As reported by Money Magazine, J.P. Morgan Chase, the US' 2nd largest bank, is rolling out 'contactless' credit cards, presumably using RFID technology. 'The new payment method doesn't require a customer signature, making it more convenient and time-saving for consumers' which leads me to wonder if the next crime wave of the future will be criminals walking through crowds with readers to grab customer info. Chase says, however, that 'new cards are embedded with encryption software to prevent duplication and data theft' but since RFID has been cracked before, and the criminals are usually more clever than the vendors...."

65 of 373 comments (clear)

  1. why not by Festering+Leper · · Score: 5, Insightful

    store it in a shielded sleeve until you use it?

    --
    if you want people to think you know what you are talking about, just put ".com" at the end of everything you say.com
    1. Re:why not by Albinofrenchy · · Score: 2, Insightful

      So we are going to take out our "Touchless" credit card when we want to use it? Seems familiar... oh wait, thats what I do now...

      --
      "A man is but the product of his thoughts what he thinks, he becomes." -Mahatma Gandhi
    2. Re:why not by Mr.+Bad+Example · · Score: 4, Funny

      I prefer to store it in a shielded sleeve before I use it.

      Oh...you're talking about your credit cards. Sorry. Carry on.

    3. Re:why not by gkuz · · Score: 5, Funny
      Do you keep your credit or debit cards in a protective sleeve now?

      Yes. It's called a "wallet".

    4. Re:why not by pyrrhonist · · Score: 4, Funny
      Magnetic strips haven't been prone to rubbing off in years.

      Uh, no. Even when they're in the sleeves, some of the strip still gets rubbed off. The friction just isn't as bad as when it's sleeveless, and they actually survive 3 or 4 years without having to be replaced.

      Perhaps that's why the only people I see who have to laboriously pull their cards

      Laboriously? It's not like you're trying to break into Fort Knox. You just pull the card out.

      out of those stupid sleeves are old farts.

      You really should talk to a counsellor regarding the hostility you feel towards inanimate objects and the elderly.

      --
      Show me on the doll where his noodly appendage touched you.
    5. Re:why not by Anonymous Coward · · Score: 2, Insightful

      Yes, but now you get to wrap you wallet with tin-foil.

    6. Re:why not by Anonymous Coward · · Score: 3, Funny

      I don't have to. I'll just keep it in my hat.

    7. Re:why not by d474 · · Score: 2, Funny

      Do you keep your credit or debit cards in a protective sleeve now?

      No, but I keep it in my protective hat. Yes, the tinfoil one. Quit laughing, it works!

      --
      Authority questions you. Return the favor.
    8. Re:why not by pyrrhonist · · Score: 2, Insightful
      Come on, this was on Mythbusters; these guys kicked the CRAP out out of some credit cards,

      They hardly kicked the crap out of the cards. All Mythbusters did was subject the cards to electric shocks.

      I'm talking about friction rubbing off the magnetic material on the card. This makes the magnetic strip inoperative, because there is no magnetic strip left.

      Take some sandpaper and sand the magnetic strip a bit. Then tell me if your card still works.

      Why is this so difficult for people to understand?

      --
      Show me on the doll where his noodly appendage touched you.
    9. Re:why not by DrXym · · Score: 2, Interesting
      So you're saying the thief need merely loiter near the victim at checkout when they remove their card to wave it past the reader? I'm sure standing behind them would be close enough.


      That assumes people are going to use a shielded sleeve. Precious few won't. And a thief could simply plant themselves somewhere busy like a food court and steal any id that goes past.


      Of course any such system would require some other form of protection. The site says encryption, e.g. the card's credentionals are encrypted with a key known only to the clearing house. It still means the key could be vulnerable to a plaintext attack since the data is likely to be short but contain well formed data such as dates, names, credit card numbers. It also means that the card could be vulnerable to some kind of playback attack unless the card itself is capable of giving a different response depending on some challenge.


      It seems to me that it would be cheaper and safe if they adopted the chip & PIN system already used by France and recently UK & Ireland. There is nothing to "sniff" and it's hardly less convenient to use or implement.

    10. Re:why not by Overzeetop · · Score: 2, Informative

      As usual, MB did not test the occurance in many wallets: magnetic stripe vs leather. The mag strip will lose. It will take thousands of cycles. This is easily accomplished by putting your wallet in your back pocket and walking around. Micro-abrasion will occur, and tanning and some leather finshes retain small amounts of solvent which accelerates the process.

      I've had cards go bad in less than 9 months.

      I got a handful of tyvek sheaths off of ebay and keep may cards in them now. It takes an extra second or two to get the card out (I'm not an old fart yet), and sometimes five or six seconds if I grab the wrong card. This is a fair trade off for my to keep my cards useable for the ever-extending valid period (three years on my most recent one).

      --
      Is it just my observation, or are there way too many stupid people in the world?
    11. Re:why not by laplandsix · · Score: 2, Funny

      Man, I don't know if you guys are the assles variety of nerds or what. I don't sit on my wallet, I sit on my ass, and my wallet isn't anywhere NEAR where my ass touches the seat. Maybe you guys need to pull up your pants.

      --
      Free The Lapland Six!!!
      http://www.whatiwore.com
      What I wore, now with 100% more pool project!
  2. Few Details by AKAImBatman · · Score: 5, Informative

    The article doesn't give too many details, but my guess is that this is nothing more than a SmartCard, similar to the American Express "Blue" card. SmartCards have had contactless technology for nearly a decade that utilize induction technology to communicate back and forth. The reader on the terminal is then able to talk to the microprocessor on the card, usually sending information that is then verified using encryption technology. (Think: public key encryption.) As a result, it's not possible to just run around and collect the info from cards, because they'll never give out secure information. They only give back cryptographically secure results. (At least, that's how it's supposed to work.)

    Note that existing contactless technology is sufficient for this credit card, with a maximum range of up to 10cm. Such technology is supposedly already in use in Europe. (Europeans care to share your experiences?)

    That's my guess anyway. I'm sure someone else can add a few details or make corrections.

    1. Re:Few Details by Goeland86 · · Score: 2, Interesting

      Wouldn't this technology also be safer for the RealID cards rather than RFID? It's still contactless, though not readable from 40 feet like some RFID tags. I hope that's what the FBI and NSA had in mind, instead of RFID, 'cuz otherwise I'll sue them both for knowingly facilitating identity theft. I wouldn't mind the government being able to read cards without contact, as it imposes less wear on the readers AND the cards, thus saving US money. As for Europe, I was there last month, and the reader wouldn't take my US visa card because it was lacking the safety chip from EU banks, and I had to be served by the clerk instead... Which was a royal pain. It definitely wasn't contactless though.

      --
      ---- I am certain of only one thing : I know nothing else.
    2. Re:Few Details by hawado · · Score: 5, Informative

      I worked for a company, here in Japan where thre use of these type of contactless smart cards is wide spread, which used this technology for fare collection. The bigest problem I had and still have with the system here is that you load up your card with virtual money. So in essence you pay before you play.
      We used these cards to sign in and out of work as well as to pay for lunch at the cafeteria.
      A number of phone manufacturers here are also putting this technology into their phones so you can swipe your phone to pay for things at stores. The main supplier of the actual chip is sony, under the namefelica.
      Now here, it is impossible to use your bank card to pay for anything. The service is just not avaliable as it is in North america or Europe.
      As to the security of the smart cards, the only information on the card is your personal account number and how much money you have on the card. At the end of the day, on mobile fare collection systems anyways, the data is transfered at the depot to a server which updates the main account information. As to store systems, the data is retrieved immediately from the server and updated.
      If your card is stolen or lost, it is like loosing cash at least until you call the card issuer and they freeze the account.
      I am not sure about how this may affect the magnetic strip on most credit cards, but a magnetic field generates the electrical power required by the chip on card to 'transmit' the data to the reader.

      --
      Feed my eyes...
    3. Re:Few Details by Anonymous Coward · · Score: 3, Funny

      Maybe he's a /. editor.

    4. Re:Few Details by AKAImBatman · · Score: 2, Interesting

      Do you work for/with Chase? If so, maybe you can help us out on a few things?

      1. Is this an induction communications device, or an RF transciever?

      2. Does it actually use an encryption chip to secure transmissions?

      3. If so, wouldn't it basically be the same thing as a contactless or RF smartcard?

    5. Re:Few Details by Max+Romantschuk · · Score: 2, Informative

      Note that existing contactless technology is sufficient for this credit card, with a maximum range of up to 10cm. Such technology is supposedly already in use in Europe. (Europeans care to share your experiences?)

      I don't know about credit cards, but my Travel card for commuting uses some kind of induction tech.

      It's in use in the Helsinki region, with at least half a million of users (probably more). Given that the card is 70 euros a month I would guess cracking whatever encryption it uses is quite hard, I've never heard of a sigle case of anyone being able to load travel time or value illicitly. The cards also work very reliably, including below the freezing point.

      The working radius, as noted in another comment, is something like 10cm.

      --
      .: Max Romantschuk :: http://max.romantschuk.fi/
  3. Can't be all bad by FlyByPC · · Score: 2, Interesting

    I'm sure there will be RFID security issues, but the trend does remind me of a commercial I saw a few years back. I forget the company (real effective, then, huh?), but the gist was that this Gen-Xer walks into a supermarket, starts stuffing TV dinners in his trenchcoat, then walks out. The security guard stops him, but just hands him a receipt.

    I kinda like the idea. Grovery shopping without having to deal with all that pesky human interaction. Qool.

    --
    Paleotechnologist and connoisseur of pretty shiny things.
  4. Choices... by cd_serek · · Score: 2, Insightful

    Having to waste 5 seconds looking through my wallet for my Credit Card, and having to manually swipe it...

    vs.

    Having my Credit Card details stolen and sold.

    I think the choice is easy.

    1. Re:Choices... by AKAImBatman · · Score: 4, Informative

      How about option 3?

      3. Being able to wave your credit card while simultaneously keeping your CC data more secure than ever.

      Don't mind the story submitter, (s)he's just making wild claims. This is probably contactless smartcard technology, which is far more secure than RFID. How secure you ask? Well, the card is only supposed to return crytographically secure results. i.e. You submit information to the card, it returns signed results. No data that could be usefully stolen is transferred. At least, that's the theory, but at least it's had a few decades to mature. :-)

    2. Re:Choices... by raehl · · Score: 3, Insightful

      Having to waste 10 minutes walking to the store...

      vs.

      Getting sideswiped by a semi on the way to the door and getting killed.

      Your comparison is a bad one. You need to add up all those 5 seconds you save and compare them to the time you'd spend fixing it if your information got stolen times the odds your information gets stolen.

      Let's also keep in mind how easy it is to steal your credit card information as it is. The number is written RIGHT ON your card. Every cashier you ever give your credit card to has access to that number.

      And when that cashier runs the card, what happens? It dials up to the central server and sends your personal information over the phone line. If you're confident with encrytpion to someplace perhaps thousands of miles away, why are you not comfortable with encryption to something 10 inches away?

      The fact of the matter is, getting bent out of shape about contactless transmission is silly. Either the encryption method used is good, or it ain't. You don't need to worry about physical layer compramisesif your transaction layer protection is good.

      Also, there are other savings here than just your time: Contactless transactions are chepaer to process than signed paper credit card transactions. Merchants can save a lot of money not having to pay cashiers to sit there and watch you sign the receipt, and credit card companies can save money not having to archive those pieces of paper.

      Economic efficiency is good for everyone.

    3. Re:Choices... by NanoGator · · Score: 2, Informative

      "Unless the cashier has a photographic memory, he/she would have to write the number down while the card is still in their possession - and if I ever see a cashier do that the cops shall be called."

      Wrong. A cashier has to print a copy of the receipt (with your card # on it. YOUR copy may not have that number but the vender copy most certainly does.), have YOU sign it, then it stays in the cash register. If that transaction is challeneged, they'll bring that receipt up to verify your signature.

      At least that's the way it was when I worked in retail. It's funny what you learn from your boss when you neglect to do something.

      --
      "Derp de derp."
  5. Watch out! by E+IS+mC(Square) · · Score: 3, Funny

    Your fingers or eyes (what whatever part of your body they are going to use for authorization eventually) are in danger!!

  6. Europe by Nexum · · Score: 4, Interesting

    The new payment method doesn't require a customer signature, making it more convenient and time-saving for consumers

    In Europe we have the chip & pin way of using credit and debit cards at Point of Sale. No signature required, but there's not really a time saving involved. When it comes to RFID credit cards though... well, the US can keep them IMO - there's no way i'd be willing to carry one of these, no matter how confident or assuring the bank tried to be.

    --

    This sig has been deprecated.
    1. Re:Europe by JimBobJoe · · Score: 4, Interesting

      In Europe we have the chip & pin way of using credit and debit cards at Point of Sale.

      Chip and Pin is destined to stay outside of the US, which is why US credit card companies are always trying to do something new that is entirely unnecessary.

      Mastercard and Visa are competing with people using their debit cardson the debit system and not running the transaction over the MC/Visa system. When you use your debit card on the debit system, you have the card swiped, and then you enter in your pin number...and MC/Visa doesn't get its valuable merchant's fee.

      In order to maintain their fees, MC/Visa has to make sure that people swipe and sign the receipts, avoiding the pin code alltogether. The introduction of a pin based MC/Visa transaction in the US would confuse people toward using their debit cards off of the MC/Visa system.

      There are those who find the signing the receipt thing a pain, and entering the pin easier. So MC/Visa will continue trying to elminate the signature and get people to feel as comfortable as possible in as easy a transaction as possible. Merchants, who don't have to pay the merchant fee if you pay via debit, would prefer you to run the transaction on that system (though I believe they can't request that you do it via debit as part of their MC/Visa agreements) I can only presume that merchants who agree to install these new credit card readers (as featured in the article) are getting some very special deal on all their MC/Visa transactions.

      I hope this goes some way to explain why credit card companies are so keen to reinvent the wheel.

    2. Re:Europe by Tony+Hoyle · · Score: 2, Interesting

      Chip&Pin is just a way of transferring legal responsibility onto the consumer - if someone steals your pin you are liable even if your card was stolen, because they assume you must have told them the pin.

      If it was about 'security' they'd still require a signature+pin (+photo ID would be nice). As it is, all a theif has to do is to say 'I don't know my pin' or (my favourite) 'Don't bother.. this card doesn't work with pins' and they'll immediately put it through as a signature only transaction and *still* never check the signature.

      When C&P first started none of my cards worked with it. Now they do, but I still use the excuses above... I have *never* been refused or asked to actually enter a pin.

    3. Re:Europe by wcdw · · Score: 2, Informative

      Chip and Pin is destined to stay outside of the US, which is why US credit card companies are always trying to do something new that is entirely unnecessary.

      Actually, pin # verification for Visa / MC is *already* in the US. They're called Verified by Visa and Mastercard Secure, respectively, and any cardholder is free to attach a pin # to their card.

      They're a huge benefit to merchants, as verified transactions are subject to far fewer chargeback reasons.

      --
      If you're not living on the edge, you're just taking up space!
  7. Hmmm, I have a new business idea.. by multi-flavor-geek · · Score: 2, Interesting

    Well why phish in the comfort of your stinky computer room with thousands of emails when you can fish from your laptop while drinking a latte'.
    I certainly hope that someone will figure out how to crack this and then takke the high road and show the consumers all of thier credit card info so they can cut the damn things up.
    Also, is there any feasibility to just sending the reply that rfid would be responsible for from your laptop and ignoring the tag altogether. I am sure I havce done worse things.

    Oh, by the way, am I the first post?

    --
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  8. To be fair by hoka · · Score: 5, Interesting

    You need to be at a relatively close range to RFID to get a "solid" reading. Sadly a lot of people are under the assumption that you can basically just pull out a huge giganto RFID reading cannon and know what an entire house worths of data is. It isn't true, and RFID is frankly not really that robust of a technology yet. It would not surprise me in the least if a lot of these cards end up failing due to extremities that cause deformities in the RFID, rendering it completely useless. Me personally? I'm sticking to my card that I have to slide, not that it is necessarily any safer.

    1. Re:To be fair by gkuz · · Score: 2, Funny
      lot of these cards end up failing due to extremities that cause deformities in the RFID, rendering it completely useless

      What are you talking about? Extremities that cause deformities? Is this when your ass is so fat it deforms the credit card in your wallet?

  9. it might not be rfid by Naikrovek · · Score: 5, Interesting

    I've worked on wireless smart cards, that act similarly to rfid cards, but have very good encryption, even public/private key encryption. smart cards have their own computers on them, so you can have a challenge/response, or just about any kind of encryption you can think of.

    those are just as hard to crack as PGP emails. Not at all easy.

  10. Familiar with Easypass? by Exluddite · · Score: 2, Interesting

    If you are familiar with Easypass you know how this will revolutionize things. According to one bill, our car passed a Parkway toll near the Atlantic City Expressway and entered the Lincoln Tunnel ten minutes later.

    --
    What does this button do...
  11. I'm sorry by mcc · · Score: 4, Interesting

    I don't care how encrypted or advanced or "secure" it is, I don't want my credit card doing anything unless I've taken it out of my wallet.

    And I would sooner change my bank to get a normal credit card than I would buy a wallet with a faraday cage built in.

  12. Re:Armchair cryptographers; Slashdot AP wire by mr_snarf · · Score: 3, Funny

    I design armchairs for a living you insensitive clod!

    --
    printf("Goodbye cruel world!\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
  13. Hong Kong's Octopus by G4from128k · · Score: 4, Insightful

    HK has been using a contactless cash card since 1997 called Octopus It's proprietary RFID system (built before the standard appeared), that seems to work quite well for public transport and retail.

    --
    Two wrongs don't make a right, but three lefts do.
  14. Why the paranoia? by Joe+Random · · Score: 3, Interesting

    I just don't see why everyone is so afraid of RFID credit cards. Simply have the private key portion of a key pair stored in the card itself, with the public key in an easily-accessible database. When you make a purchase, the merchant sends a random challenge to the card, which then encrypts it with the private key and sends it back. The merchant verifies against the public key, and, if it matches, the transaction is approved. With a smart card, the only way to use my card is to have the physical card, in which case we're back to be exactly as secure as the current system.

    I would think that /. geeks would be all over this. I mean, it's not perfect, but it would be a hell of a lot more secure than the current system. Right now, if I take my credit card to a restaurant, the waiter need only make a spare imprint of the card (and write down the verification number on the back). Later, he can pull out a phone book to get my address, and then he has all of the information he needs to use my card fraudulently.

    I say "bring on the RFID credit cards". Simpler to use, and more secure than what's currently in my wallet.

  15. gives new meaning to "double swipe" by gooogle · · Score: 2, Interesting

    Some retailers (Gas station employees mostly) will double swipe your card to charge you twice or swipe it through a personal magnetic reader which grabs and stores all info on your card which they use later to repro your magnetic strip. With RFID, an fradulent retalier would simply need you to walk through the door and have a concealed reader sitting within close proximity. You won't even know you've been charged until you get your bill at the end of the month. And to add to this, if they charged you 10 cents, would you go through the hassle of calling waiting on customer support for 10 minutes just to report a 10 cent charge you don't have?

    There'll be a whole new array of attack vectors and frauds built around this. The insurance companies will up the premium, the credit card companies will be able to differentiate and compete, retailers will install new readers and a it'll give shape to a new industry.

    --
    -- Binary Finary
  16. Re:Problem is they use weak encryption by AKAImBatman · · Score: 2, Interesting

    How does 2048 bit RSA on a SecurCore ARM processor sound? Sounds good to me.

  17. Here's how it might work by Comatose51 · · Score: 2, Insightful

    I was just thinking about this. I doubt banks will make it THAT easy for people to steal identity. Remember, it's money here we're dealing with and if it becomes too easy to steal the banks will lose money as well and customers' good will and trust, which you want in the finance industry.

    In any case, I can imagine it working like this:
    1. Terminal sends some string of random bytes, p.
    2. Card processes it using some one way function f(p,q) and returns the value s where q is some secret info.
    3. Terminal takes the results and sends p and s to the bank to verify. Bank runs f(p, q) and see if it matches s. If so, return true.

    That's just a simple scheme I hatched up where you don't have to reveal your secret info to verify yourself. I'm sure there are much better ways.

    --
    EvilCON - Made Famous by /.
  18. transaction approval by j1m+5n0w · · Score: 2, Interesting
    How does the card know that it's owner approves of a particular transaction? From the card's perspective, there's not much difference from running it past a walmart scanner and getting pickpocketted by a card reader with a high gain antenna from a hundred feet away. With a magnetic strip card (horribly insecure, but in different ways), running the card through a reader implies the user's consent, but if that's no longer required, there needs to be some other way to validate the owner's intent to conduct a transaction.

    The only way I could see this being secure is if the card itself had a display with the dollar amount and recipient, and a yes/no button. Perhaps they have this, does anybody know?

    1. Re:transaction approval by AKAImBatman · · Score: 2, Informative

      The shady guy standing next to you in line (or the cashier who double-swipes) doesn't care about legal charges now. Why would he care in this future where he can steal your card wirelessly?

      Because they can't steal the card wirelessly. All they can do is attempt a transaction by placing a reader close to your behind. (Or wherever you keep your cards.)

      And that transaction is useless unless they can submit it to the credit card company. You need a merchant account to do that. And a merchant account is not easy to get. Even if you do get one, the CC company will have all the info they need to track it back to you. Thus you'd have to use someone else's merchant account. But since the money from that account goes directly to the merchant (which will then be charged back by the CC company after the theft anyway), you'd have to steal from the merchant. Which means that it would have been easier to just steal the money in the first place.

    2. Re:transaction approval by AKAImBatman · · Score: 2, Interesting

      Results 1 - 10 of about 17,200,000 for merchant account. (0.07 seconds)
      You were saying?


      I was saying that they're hard to get. Have you ever tried getting a merchant account? It's expensive, and a royal pain in the ass! Not to mention that it is really easy to lose your merchant account. Just because there are variety of carriers (although not as many as it might seem at first) doesn't mean that such accounts are easy to get.

      ...because criminals NEVER use fake names and addresses, right?

      Because merchants are never verified by CC companies, right? And because merchant accounts don't cost $$$ to get set up, right? And because the CC company isn't going to lock out your account as soon as fraudulent transactions start coming through, right?

      Geez, people. Pull your heads out.

  19. Re:Armchair cryptographers; Slashdot AP wire by Joe+Random · · Score: 3, Funny
    I design armchairs for a living you insensitive clod!
    *sigh* A golden opportunity wasted. The correct response to the phrase "armchair cryptographers" would have been, "I encrypt armchairs for a living, you insensitive clod!"
  20. Phish-pocketing by lawpoop · · Score: 2, Funny
    Nowadays, a pickpocket bumps into you to distract you from the hand going into your pocket.

    In the near future, all that a pick pocket has to do is bump into you and he's got your entire wallet.

    I dub this "Phishpocketing".

    --
    Computers are useless. They can only give you answers.
    -- Pablo Picasso
  21. Contactless Tech, Old news? by Hido · · Score: 5, Informative

    In Japan we have been using contactless technology for our daily needs for a while now. Good examples of the technology are Felica Suica and Edy.

    As much as the /. crowd has been all skeptical about this technology, over here I've not heard of anything happening that could make headlines for this and I personally have been using them for my daily commute needs and have never had any sort of problems with them.

    Now its understandable that people are getting all finicky about something like this, but I say first try it out before you make a comments on about it. Its a lot better then walking around with a wad of cash and it sure as hell beats having to stand in line trying to by a ticket for anything from airlines to trains.

    --
    Havin' it large, livin' the life, Welcome to the land of the rising sun.
  22. What if you have multiple cards? by Chibi · · Score: 4, Interesting

    I personally have 3 credit cards and 1 banking card. I'm curious what will happen if/when multiple companies pick up on this technology? If I wave my wallet near some type of scanner, which card will be selected?

    --
    If all you have are silver bullets, everything looks like a werewolf.
    1. Re:What if you have multiple cards? by swillden · · Score: 2, Informative

      If I wave my wallet near some type of scanner, which card will be selected?

      I have two different contactless readers on my desk, and a few dozen cards of different types, so I think I can answer this.

      Which one will be selected? None. In my experiments, the reader is unable to communicate with any card if there are multiple cards in range. The technology doesn't have any anti-collision technology, and no way of addressing a specific card, so when multiple cards are powered by the field, they step all over each other.

      If you have two cards and one is deep into the field while the other is just at the edge, just barely into the region where it would normally work, the nearer card seems to block the transmissions from the further card and the reader can communicate with the nearer card.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
  23. A Question by citizenc · · Score: 2, Interesting

    Why would this not require a customer signature? Why not eliminate the need for the signature for any type of credit-card transaction?

  24. Don't assume RFID by Anonymous Coward · · Score: 2, Interesting

    In Japan they have already rolled out Felica for train tickets, coke machines and some convenience store purchases. The cards are pre-paid and you can recharge them at any JR (Japan Rail) train station. Here is the info on the technology.

    http://www.sony.net/Products/felica/contents04_02. html

  25. Encryption is irrelevant by rufusdufus · · Score: 3, Interesting

    If you can't see why contactless credit cards are a terrible idea, then congratulations, you don't have a criminal mind!
    Does all that talk about encryption make you feel warm and fuzzy? Don't let it. Encryption gives ZERO protection in this case, doesn't even need to be cracked. The criminal doesn't need to understand the information he is stealing, he just needs to route it to a card reader that does.
    The difference here is that a person who keeps control of their swipeable credit card has the assurance that only businesses they trust has access to the card.
    The odds that a traceable employee (with a job!) steals the card while in the backroom is much smaller than an anonymous person in the crowd at the mall.

    1. Re:Encryption is irrelevant by Anonymous Coward · · Score: 2, Interesting

      no matter how clever the card/reader transaction was, heres a scenario that would always work:

      hacker #1 finds a mark he can get close enough to to read the card, maybe he's on the subway or something. Then radios his accomplish hacker #2 who is about to buy something from the store. Instead of having a card in his wallet, he has a radio repeater from a hacker #1's reader that takes the information from the card and plays it to the store's card reader. Even if the card reader "challenged" the card with sophisticated encryption, the transaction would still go through because the reply from the challenge would always be correct, because it was read real-time from a real card.

    2. Re:Encryption is irrelevant by asuffield · · Score: 4, Interesting

      If you don't see why encryption can solve this problem, then you don't have a technical mind.

      The information supplied by the card is of ZERO value to any criminal. Copying the data sent over the air is completely useless. No secret is ever revealed. Everything transmitted is considered 'public' information, in the sense that it doesn't matter who sees it.

      The message from the card in particular is useless, and doesn't even need to be encrypted. It can say "Alice has made a purchase of two pairs of woollen socks from the shop on the corner for £2.67. This is her third purchase on 20/05/2005", and the credit company can maintain a replay database to make sure that she only makes one third purchase on a given day.

      Replaying that message to another device accomplishes nothing. It's not a purchase at this device, for this object or amount of money, or which will actually be accepted by the credit company.

      We aren't really talking about 'contactless credit cards' here. We're talking about contactless smart cards, which are a well-developed technology. They are nothing like RFID.

      Now, there's still plenty of room for the credit companies to screw up security on these cards, particularly since they don't actually care how secure they are. But genre attacks like you describe are not an issue.

  26. Nope by Sycraft-fu · · Score: 4, Informative

    Smart cards are actually little processors. With current credit cards, all the mag stripe has is your info repeating over and over. You swipe it, the reader gets the number and contacts your bank (indirectly, they actually talk to an auth network who talks to Visa/MC and so on) to see if you have the necessary funds. If so, it places a hold on those funds and the transaction goes through.

    The problem is that the information isn't encrypted in any way so all someone needs to do is copy it.

    Not the case with a smart card. What happens with those is a challenge is sent out be the machine and the smart card computes a response. It's public key crypto. So the bank gives or withholds authorization off of the correctness of the response to the challenge. So finding the correct answer to a given challenge is worthless, since they are always different. You can't copy the data off the card, they don't allow that.

    Poke around on Google a bit if you are interested in the technology but that's what makes people interested in it. You have to physically steal the card to be able to do anything with it. Also, it can even have data written to it. IF you use a GSM phone, you phone will have a smartchip in it. That chip contains your identity, so when a phone recieves it, the phone takes on your phone numebr and service. However that's not all, you can write phonebook entries to the smartchip as well, so those will come with you.

    The only real security concern at this point is the technology is new. In cryptography, things aren't proven strong in a single test, they are proven not weak by years of failing to be broken. Since smart cards are new, one hesitates to call them truly secure.

  27. Except that it's not by StarManta.Mini · · Score: 3, Insightful

    RFID is a very good idea for many things, such as grocery tagging. For credit cards it's awful. There are only two possible states of an RFID credit card:
    1) Safely in a sleeve, where no one can read it
    2) Out in the open, where everyone in a certain radius can read it

    In other words, you can't spend it without exposing it. Joe Hacker can hang out next to the checkout line at your grocery store for 5 minutes and get a dozen credit card numbers.

    I don't care how much you encrypt it: it'll be cracked, and sooner rather than later. The fact that they are compounding this with no regulation of requiring signitures is one of the worst security decisions I've ever heard of - far worse than anything Microsoft has ever put out, and that INCLUDES ActiveX. Because ActiveX breaches don't immediately and directly cause credit card numbers to get stolen en masse unless combined with social engineering.

    1. Re:Except that it's not by Joe+Random · · Score: 2, Interesting
      Joe Hacker can hang out next to the checkout line at your grocery store for 5 minutes and get a dozen credit card numbers.
      However, if things are done correctly, your credit card number will no longer be the important bit of information that it currently is. It will simply be a type of GUID that is useless without the circuitry that holds your private key. That will be the useful piece of information stored by your card, and will only be accessible to someone if they have the physical card.
    2. Re:Except that it's not by __aalruu9610 · · Score: 2, Informative

      I loved those experiments, except there's something he left out...he didn't file a dispute with any of the charges with the credit card company. It's really not up to the businesses to verify signatures as much as it is the credit card company when something goes wrong...

    3. Re:Except that it's not by GeckoX · · Score: 3, Insightful

      Yes, but it reduces the security from something you have, something you are, something you know down to simply something you have.

      How come all we are talking about here are the communication of the something you have part, and everyone is ignoring the loss of the other 2 critical parts of the secure equation?

      To me, this looks like these cards are totally disassociated from the card holder when used. That is most certainly NOT more secure than we have currently.

      Am I missing something or is everybody else?

      --
      No Comment.
  28. THIS IS NOT RFID by RzUpAnmsCwrds · · Score: 5, Informative

    Umm, Slashdot has made this mistake before and it will make it again, so let me say this:

    THIS IS NOT RFID.

    RFID is a term used to describe a number of standards.

    Chase is deploying "contactless smartcards" (ISO 14443). Contactless smartcards, like regular smartcards, use public-key encrpytion technology. Being able to activate / read the card does zero good, because the secret is stored in the card and never revealed.

    ISO 14443 is also far more secure than magstripe cards, which have no encryption whatsoever.

  29. Real geeks spend cash by NotQuiteReal · · Score: 2, Insightful
    As long as it is legal tender, I pay cold, hard cash for lots of stuff.

    I dress like a slob, so I am not a mugging target, and I don't spend what I don't have, so I don't have any credit card debt.

    When the clerk asks for personal info, even if it is just "Can I have your zip code, sir?", I say "No".

    Sure, I could get a couple of percent on "the float", but just not hassling with big bills is worth it. Paying for a meal you excreted a month ago sucks.

    Pay as you go. Be happy.

    --
    This issue is a bit more complicated than you think.
  30. Re:Major clarifications by faedle · · Score: 4, Informative

    I mean c'mon people - we're talking about a huge bank here - do you really think Chase is that stupid to deploy a technology so insecure that people's "wallets" can be secretly "scanned" from across the room?

    As a matter of fact, yes.

    Especially considering that American banks are WAY behind the rest of the world in areas like using one-time pads or multi-factor authentication. Heck, Bank of America actually only requires use of your 4-digit PIN number from your ATM account.

    In my experience, you are actually more likely to get intelligent solutions to identity theft from smaller institutions. If something "funny" goes on with my account, THEY CALL ME personally FROM THE BRANCH, with a friendly voice I recognize. They also by default have passwords set up on accounts (and discourage the use of common passwords like maiden names).

  31. no need for panic. by hiadam · · Score: 2, Informative

    At a risk of repeating what has already been said several times, here is a simplified version of this "encryption" thing going on:

    Say your card reader wants to verify the card:

    Reader: "Card, identify yourself."
    Card: "Name: John Smith. Today's code: 2xfG&k29#5"
    Reader (to bank): "John Smith gave me code 2xfG&k29#5". Correct?"
    Bank: "Yes. Proceed with transaction."

    Meanwhile Angry Bob intercepts the code with his scanner and sends a message to the bank from his terminal: "John Smith gave me code 2xfG&k29#5. Correct?"
    Bank: "No. the code you gave is not valid." The code was only valid for that particular instance. (perhaps the bank provided a "seed" value that the card combined with a hash of the account number to verify itself, of course stripping out enough information that the account number can never be reconstructed from the verification code.

    The point many posters have made is that the smart card never actually passes along any sensitive information. It passes along some encrypted code that tells the bank whether or not the card is legit. That code will be useless outside the context of that specific transaction. In other words, you can intercept and decrypt all the codes you want but they will not help you.

  32. -1 Wrong by raehl · · Score: 2, Informative

    Unless the cashier has a photographic memory, he/she would have to write the number down while the card is still in their possession - and if I ever see a cashier do that the cops shall be called.

    I can memorize 16 digit numbers, at least long enough to write them down a few minutes later, without much trouble. Talent picked up when working in a restaurant and it being convenient to memorize the numbers on the manager cards.

    Because I'm confident that any company engaging in credit card theft will promptly get caught, prosecuted, and sued the pants off of. The same may not hold true for an individual, and the fact that there are two dozen people standing within RFID range when most transactions are done greatly disturbs me.

    You missed the point. I'm not talking about the company on the OTHER END of the line - I'm talking about the ability of parties to intercept your transmission between you and the company. If you use credit cards, you must accept that the encryption that keeps your data safe from when it leaves you and when it gets to the company is sufficient. If you're willing to accept that the encryption is sufficient, why does swapping hundreds of miles of phone line or fiber for 10 inches of air suddenly make you not trust the encryption?

    Either the encryption is good enough, or it isn't. Whether it's a contact or contactless transmission doesn't matter.

    And it ain't good enough. I can promise you it will be cracked sooner rather than later.

    Are there people running around breaking the encryption used on web transactions? The encryption used to move money from bank to bank? The encryption used when the VERY SAME data you don't want to transmit wirelessly is transmitted over the phone or internet to process EVERY SINGLE OTHER CREDIT CARD TRANSACTION YOU MAKE?

    I can accept that you are paranoid and don't trust encryption. But if you don't trust encryption, you shouldn't use a credit card at all. But if you do use a credit card, which it appears that you do, there is no logical reason not to use contactless credit cards. If the information can be stolen in contactless transmission, it can be stolen even more efficiently by tapping the data line on the way out of the store.

    You haven't gone to fast food places lately, have you? McDonald's, Wendy's, and Panera (the 3 joints i frequent most) do not require a signature on credit cards if the transaction is small (less than $25 or so). So, there is next to no money saved on that point.

    For those merchants, and that was a huge concession on the part of the credit card industry in order to be accepted into those merchants, who didn't want to slow down their lines to make people sign stuff. It won't be that easy for industries where credit cards are already an expected form of payment, so if contactless transmission will get the credit card companies to allow merchants to not require paper, that's a good thing.

  33. Re:Problem is they use weak encryption by 91degrees · · Score: 2, Insightful

    Banks tend to be pretty good with encryption. When negligence could easily cost you several billion, security is worth it.

  34. Using a sandpaper wallet was your big mistake n/t by Craevenwulfe · · Score: 2, Funny

    Using a sandpaper wallet was your big mistake n/t