[Q] NFC uses in transit cards - Samsung Galaxy Nexus

I recently downloaded an app called FareBot.
It basically reads the amount of money left and the trips taken in my transit card. It uses the NFC capabilities to read them.
Is there a way to make my phone act as my transit card? Can the transit card be cloned and added to the phone's NFC capabilities?

ahse0w said:
I recently downloaded an app called FareBot.
It basically reads the amount of money left and the trips taken in my transit card. It uses the NFC capabilities to read them.
Is there a way to make my phone act as my transit card? Can the transit card be cloned and added to the phone's NFC capabilities?
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Click to collapse
Funny, I was looking today on my way into work on how to do the same thing...

No.
To emulate a card, you need access to the Secure Element of your NFC chip.
It's called Secure Element for a reason, Google ain't going to let any Tom, **** and Harry have access to the Secure Element.

Related

[Q] Copy tag to phone

Hi
Here at the university we use a NFC card to check in. Is it possible to copy the tag to my phone so I don't have to carry my student card around?
Depends
Sent from my LS670 using XDA
Shark_On_Land said:
Depends
Sent from my LS670 using XDA
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Wow, helpful much?
I'd like to know this too.
thx
arjun rajput
+1
I like to know this to.
(Here at the university we use a NFC card to check in. Is it possible to copy the tag to my phone so I don't have to carry my student card around?)
Hi Samuel
I believe this is not possible right now, as there are security measures in place to prevent fraudulent use, but give it a couple of months there will be apps you can download , to copy re-writeable NFC tags to your phone, making your phone work as an emulator of some sort.
virus007 said:
(Here at the university we use a NFC card to check in. Is it possible to copy the tag to my phone so I don't have to carry my student card around?)
Hi Samuel
I believe this is not possible right now, as there are security measures in place to prevent fraudulent use, but give it a couple of months there will be apps you can download , to copy re-writeable NFC tags to your phone, making your phone work as an emulator of some sort.
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Click to collapse
To emulate cards with your NFC phone, you have to have full control of the secure element. In the Nexus phones, access to the secure element is restricted to Google - only they have the codes to access it. In non-Nexus phones like the SGS2, they don't even have built-in secure elements and therefore have to rely on SIMs, which are in turn controlled by operators. Without access to the secure element, you won't be able to emulate another card. So, no, even in a few months you won't be able to copy a tag and emulate it from your phone. Unless Google opens up the secure element to, which is unlikely.
To OP: Even if you could actually copy the contents of the card and then emulate it, this might not be enough. Many schools use just the UID of the card to associate it with your account on their system. This means that there's a good chance that your card actually has no data on it. Furthermore, phones aren't currently able to emulate UIDs. You're out of luck.
LoveNFC said:
To emulate cards with your NFC phone, you have to have full control of the secure element. In the Nexus phones, access to the secure element is restricted to Google - only they have the codes to access it. In non-Nexus phones like the SGS2, they don't even have built-in secure elements and therefore have to rely on SIMs, which are in turn controlled by operators. Without access to the secure element, you won't be able to emulate another card. So, no, even in a few months you won't be able to copy a tag and emulate it from your phone. Unless Google opens up the secure element to, which is unlikely.
To OP: Even if you could actually copy the contents of the card and then emulate it, this might not be enough. Many schools use just the UID of the card to associate it with your account on their system. This means that there's a good chance that your card actually has no data on it. Furthermore, phones aren't currently able to emulate UIDs. You're out of luck.
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Clearly, a direction NFC will follow. There's no way users will allow something like that to remain as neutered as it currently is. It just (seemingly) has not worked that way in the past.
thanks
thanks

NFC card with credit copy-able to phone?

As title suggests
Would it be possible? Or would it depends on the secruity/encryption of the original tag?
Here in Hong Kong there is a thing called an "octopus card" which contains credit that can be recharged from convenience stores, tube stations etc. Would it be possible to copy/transfer the data from that card to my phone so I can just use my phone?
droid_does said:
As title suggests
Would it be possible? Or would it depends on the secruity/encryption of the original tag?
Here in Hong Kong there is a thing called an "octopus card" which contains credit that can be recharged from convenience stores, tube stations etc. Would it be possible to copy/transfer the data from that card to my phone so I can just use my phone?
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No, these cards are specifically designed with security to prevent such a thing.
The closest thing is if the provider of the card puts hooks into their financial to permit using NFC card emulation with their services, such as how Citi partnered with Google to allow PayPass accounts to be used with Google Wallet.
Every time you use your credit card, it reads/generates/writes a new code, so its never the same.
Sent from my Rogers SGH-I727R using my XDA Premium app
Try "八達通餘額閱讀器", search that on Google Play, that app should able to read the balance of your card.
AFAIK, octopus card has some kind of security lock and you are unable to modify the data inside, but you can read some of the data(like balance, card serial no., etc).

[Q] Copy NFC tag to another NFC tag

Hi everyone, this has probably been asked before but I didn't want to i guess bump a necro thread.
Basically I was wondering is it possible for me to copy an nfc tag to another nfc tag. From a post I saw here, it said it is possible as long as the tag isn't encrypted.
So basically what i was hoping to know is one how would be the best way I would know if its encrypted and two what would be the easiest way to do this.
If it helps my mindset is basically I want to copy the NFC tag from my bus card onto a wristband so that I don't need to use the card anymore. What I'm guessing is that everything is set electronically in terms of card cost and stuff like that as I read that I can recharge and view my balance online so I'm assuming the card just acts like a connecter to your specific account and doesn't actually contain any money information on it.
I tried an app to read from the card and it did show me what I think is numerous files, in which the one I saw said that I was allowed to read from the device but no write access which I'm guessing is fine since all I want to do is read and copy from that NFC tag and then write it to another one I can buy.
The other thing I could do is just cut up my bus card and get the nfc part and place it under a watch or something, the bus company said I can get a new card for free whenever I like if I lose my current one so that's another way but seems a bit crude to me.
eitherrideordie said:
Basically I was wondering is it possible for me to copy an nfc tag to another nfc tag. From a post I saw here, it said it is possible as long as the tag isn't encrypted.
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Click to collapse
You can copy any information you can actually read. BUT the following is not working:
If it helps my mindset is basically I want to copy the NFC tag from my bus card onto a wristband so that I don't need to use the card anymore. What I'm guessing is that everything is set electronically in terms of card cost and stuff like that as I read that I can recharge and view my balance online so I'm assuming the card just acts like a connecter to your specific account and doesn't actually contain any money information on it.
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Click to collapse
Wrong assumption. A card used for banking etc has a private key on it that the bank will use to authenticate you. In order to do this they let the card sign some data and verifies the signature. If everyone could read that key, that would be horrible unsafe. Everybody that would be able to read the key could sign the data on your behalf. That is why the key is on the card and never leaves it.
I tried an app to read from the card and it did show me what I think is numerous files, in which the one I saw said that I was allowed to read from the device but no write access which I'm guessing is fine since all I want to do is read and copy from that NFC tag and then write it to another one I can buy.
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Click to collapse
As I said above, this works for cards that contain only data. You can copy any data that is readable, but cards that give you the functionality you want are not copyable via nfc.
The other thing I could do is just cut up my bus card and get the nfc part and place it under a watch or something, the bus company said I can get a new card for free whenever I like if I lose my current one so that's another way but seems a bit crude to me.
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Same as above. Id guess your buscard is some sort of mifare card. You can only read/write those if you have the keys. And I don't think you will have them. Well it depends on the exact card but still.
Damastus said:
You can copy any information you can actually read. BUT the following is not working:
Wrong assumption. A card used for banking etc has a private key on it that the bank will use to authenticate you. In order to do this they let the card sign some data and verifies the signature. If everyone could read that key, that would be horrible unsafe. Everybody that would be able to read the key could sign the data on your behalf. That is why the key is on the card and never leaves it.
As I said above, this works for cards that contain only data. You can copy any data that is readable, but cards that give you the functionality you want are not copyable via nfc.
Same as above. Id guess your buscard is some sort of mifare card. You can only read/write those if you have the keys. And I don't think you will have them. Well it depends on the exact card but still.
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I guess I had too much I was hoping would work, but from reading what you said it doesn't sound like it will . I do get that it has a private key, I was just kind of hoping that in this case it wouldn't since the card doesn't really seem like its worth much, such as compared to something like a visa card or something like that.
Each card has a unique number on them written on the back, so I guess I just kind of assumed each number was assigned for each account type thing and if you lost a card they would just change the account with another different number since you can own multiple bus cards, and that would be all I need, but it seems like you are most likely correct. Our buscard only came into affect about a month or two a go, but I'm assuming they probably paid a company of some sort to do it, and if thats the case they probably would have it encrypted either way
Is there still a way I could check? Just in case theres like some sort of miracle and it is only just a basic card type thing? Even though thats most likely wrong?
You can copy any data that is readable, but cards that give you the functionality you want are not copyable via nfc.
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If this is the case though I guess its impossible
Cheers though
eitherrideordie said:
Is there still a way I could check? Just in case theres like some sort of miracle and it is only just a basic card type thing? Even though thats most likely wrong?
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Click to collapse
You could try to identify the card. Maybe use sth. like NFC TagInfo or ReTAG to see what type of card it is. These TagInfo will also show you whats in the card when its readable. But dont get your hopes too high.
Damastus said:
You could try to identify the card. Maybe use sth. like NFC TagInfo or ReTAG to see what type of card it is. These TagInfo will also show you whats in the card when its readable. But dont get your hopes too high.
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Click to collapse
Hi, thanks heaps, had a go at using NFC TagInfo and this is what I get
Tag information says the tag type is ISO/IEC 14443-4 smart card
mifare desfire evi(mf3ICD2I)
Under the ISO/IEC 14443-4 Smart card part
it talks about the mifare desfire
Within there it says
Key configuration changeable YES
Master Key required for application creation/deletion YES
Master Key required for application directory list NO
Master Key changeable YES
Available Keys KEY 0: Key version 1
Another key configuration says the exact same thing but also says
Key change permissions AUTHENTICATE WITH KEY 0 application master key
And there's a whole heap of files in there, most of which are readable but some say read fail.
From the sound of all this, its starting to not look that good , I'm assuming if there's keys and things that the only way would be to break them and I don't want to do anything against the rules to be honest .

Samsung Ezon NFC Unlock

I have the door lock and have some NFC stickers which work great
I have the Note and am trying to figure out how to use it with the door lock, but i cant get it to work i have NFC on and downloaded some apps
I put the Ezon in setup mode and the stickers register fine but not the phone, so im sure something is not right, but have no idea which
Won't work..
xboxhaxorz said:
I have the door lock and have some NFC stickers which work great
I have the Note and am trying to figure out how to use it with the door lock, but i cant get it to work i have NFC on and downloaded some apps
I put the Ezon in setup mode and the stickers register fine but not the phone, so im sure something is not right, but have no idea which
Click to expand...
Click to collapse
As I understand it, the only way to get your phone to unlock the Samsung Ezon is to be using Google Wallet and use the Loyalty Cards feature. I don't think the Note has Google Wallet so you might be out of luck. I have been trying to do the same thing for months now with a One X, One, S4 and Nexus to no avail.
from a google search I found this quote
your mobile phone to be your access key. This would then allow you to control when your card is active and when it is not. If you have an Android device that supports Google Wallet, you’re all set. The trick is to have Google Wallet installed with at least one “Loyalty Card” setup in the wallet, then make sure the card is enabled. Doing this enables NFC card emulation on your device which will present a UID to the EZon when it is within range. This type of card emulation is different from your payment information (so you don’t have to worry about the lock charging your bank account each time you unlock it). You can then enroll your phone just like a physical access card to the EZon and use your phone to unlock the device. The added benefit is that when your phone’s screen is turned off, card emulation is off as well which makes things a lot harder to tap and then clone.
Click to expand...
Click to collapse
..
I just installed my Ezon 6020 on saturday, and I havent been able to get it to detect me phone using the Commonwealth bank contactless app D:
it doesnt detect my usual credit cards either which surprised me...
did you find anything OP ?
any updates on this?

if a nfc/rfid card is disactivated?

lets say a nfc/rfid card for a job or apt is disactivated. Is there a way you can reprogram the card in anyway for it to be able to gain access again to those places?
bump
q-live said:
lets say a nfc/rfid card for a job or apt is disactivated. Is there a way you can reprogram the card in anyway for it to be able to gain access again to those places?
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Click to collapse
Afaik, there is no 'activation' or 'deactivation' on nfc.
Afaik, again, the readers interpret what the card has written on it. Let's take opening a door. On the card you have an unique ID, the reader goes through a list of authorized IDs, and if yours is in there, it opens the door.
Via an NFC reader app you should be able to replicate any card you like, and I also think reprogramming is possible. If your ID is not allowed to cross a gate anymore, you would have to scan a tag which can and emulate it. This goes without saying, don't do anything illegal.
Also, there could (should) be some more layers of protection, like encryption of the data on the tag, which could prevent advanced editing.
Of course, these are my two cents, I may be ridiculously wrong.
Sent from my XT1068 using XDA Free mobile app
Wow

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