Develop Bugs

So would this nfc really work?

http://tinyurl.com/6sxqgwo
Sent from my SPH-D710 using xda premium

In theory, sure. It's along the same lines as SDHC cards that give Wi-Fi ability. The real issue is whether or not it's worth it to forgo the extra storage space of a memory card in favor of a NFC capability.
The concept of NFC is really cool, but isn't there yet in terms of practicality. I only use 1 credit card so, for me, having to use my phone to do transactions will more than likely take more time than just using my credit card. There are security benefits to NFC as thieves won't be able to steal information from the magnetic strip.

Megatr0n. said:
There are security benefits to NFC as thieves won't be able to steal information from the magnetic strip.
Click to expand...
Click to collapse
I actually am worried this would make things less secure than currently using your credit card.

Here is what I found on there site
Will I lose data on my original microSD?
No. The great thing about moneto is the fact that the microSD doubles as a storage source on non-iPhone smartphones. If you have any data or media, such as application folders, music, videos, or pictures on your microSD that you’d like to keep you can easily transfer that content to the moneto microSD.
* * Transferring data from my microSD to my moneto microSD
Load your microSD onto your computer. You can do this by using a microSD to USB converter, a microSD to SD card converter with an onboard SD slot, or by leaving your microSD in your phone and connecting your phone to your computer via USB cable.
Copy all desired files from your microSD card to the new folder. Simply drag and drop the files or folders you wish to transfer
Right click your microSD card and select “Eject” to safely remove it
Insert the second microSD card as you did in step 1
Copy the files you moved in step two and paste them in the moneto microSD, eject the drive to safely remove the card. Removing the microSD without ejecting on your computer or unmounting on your phone can damage any data stored on the card.
*

cds0699 said:
I actually am worried this would make things less secure than currently using your credit card.
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Click to collapse
How so?
Sent from my SPH-D710 using xda premium

My thoughts on it being less secure would be if someone has a receiver for NFC, they could access your chip. There was a news story here in Denver, I don't remember the station, where they went yo the airport with said receiver and started pulling up information from people with the NFC credit cards. I have no idea if that would be an issue on phones, as I have not done any research on it, so it may not be an issue...

mikey80021 said:
My thoughts on it being less secure would be if someone has a receiver for NFC, they could access your chip. There was a news story here in Denver, I don't remember the station, where they went yo the airport with said receiver and started pulling up information from people with the NFC credit cards. I have no idea if that would be an issue on phones, as I have not done any research on it, so it may not be an issue...
Click to expand...
Click to collapse
You have to actually load an app and do an authorization in order to make a payment with a wallet through NFC.

ddrt said:
How so?
Sent from my SPH-D710 using xda premium
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Click to collapse
I am trying to think about the hacking possibilities. Also when you think about credit card theft, cell phone theft is also pretty high. For example, if you have an NFC sd card, and your phone gets stolen, how easy would it be to hack in and get the pin and have access to everything?
I haven't learned enough about it though, I could possibly be mistaken/misunderstanding/paranoid.

How would you get the Google wallet app on your phone if u get this? I love Google wallet and use it all the time withmy nexus.
Sent from my Nexus S 4G using xda premium

cds0699 said:
I am trying to think about the hacking possibilities. Also when you think about credit card theft, cell phone theft is also pretty high. For example, if you have an NFC sd card, and your phone gets stolen, how easy would it be to hack in and get the pin and have access to everything?
I haven't learned enough about it though, I could possibly be mistaken/misunderstanding/paranoid.
Click to expand...
Click to collapse
Ya but u can track ur phone with avast and look out. So if anything its more secure
Sent from my SPH-D710 using xda premium

musclehead84 said:
How would you get the Google wallet app on your phone if u get this? I love Google wallet and use it all the time withmy nexus.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
I believe it has nothing to do with google wallet. You have to download their own app in the market

mikey80021 said:
My thoughts on it being less secure would be if someone has a receiver for NFC, they could access your chip. There was a news story here in Denver, I don't remember the station, where they went yo the airport with said receiver and started pulling up information from people with the NFC credit cards. I have no idea if that would be an issue on phones, as I have not done any research on it, so it may not be an issue...
Click to expand...
Click to collapse
That's more likely with RFID chips (the kind new passports have), not NFC. NFC has a very short range (literally, a few cm's) and as another person mentioned, you need to initiate a transaction for it to even show up. The only way they'd be able to do that would be to try and hijack the payment terminal itself since the range is so short. And even then, I'd imagine someone would notice if the card didn't seem like it was going through, but the customer was showing that they paid or it looked like two charges were trying to be made.
Security wise, NFC shows a lot more promise than RFID. It's really going to come down to how fast it expands (currently only uses MasterCard PayPass system and not all stores have those) and whether or not it's more convenient to use compared to traditional payment methods.

OV-Chipkaart

Hello people,
So I recently was playing around with some NFC apps, and I found out my OV-Chipkaart (Dutch public transit card) was read by my phone. Unfortunately I got a lot of numbers and stuff I didn't understand. Does anybody know more about this?

The card is encrypted. If you get the key (there are a couple of articles on the internet which tell you how to get it), you should be able to read the entire card. Without the key you can only see the expiration date.
I saw it was possible to add your own MIFARE key in the TagInfo app. The only thing you need to get this key is an RFID-reader for your PC and some processing power (and the appropriate software).

cool
Thats so cool

My acces card for school does the same. Found this out because everytime i put my phone kn my wallet it made a sound.
Sent from my GT-I9300 using xda premium

UID
Each contactless chip (incuding the Mifare you have) has a unique id which is accessible to any contactless reader, in this case you phone. Unique id enables the reader to overcome collision for reading one chip at a time. This is is probably used as the id of your card by the system it is being used.
htcsnap93 said:
My acces card for school does the same. Found this out because everytime i put my phone kn my wallet it made a sound.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse

hey on they internet i found this :
http://www.youtube.com/watch?v=L7wyHfYDg4A
http://www.ov-chipkaart.me/forum/vi...sid=601115f083127a3a86069b25feebdb43&start=30
i tested it on my personal ov chipkaart but it didn' t work because i haven' t made a dump off the card. i haven' t got a reader for it so maybe if a xda that lives in Rotterdam/Cappele a/d Ijssel is kind enough to make a dump for me

I also recently checked my bus-card and the phone could read some of the info in the card, so i was wondering if it is possible to clone the info in the card to some other nfc tag, which would be cool, and also if i use the phone as rifid reader, mentioned above, connected to pc with usb then theoretically it would be possible to reprogram the card...?
And also another question, is it possible for the phone to send out same info which is on the card so i could use phone instead of bus-card at the bus?
EDIT: I read previous topics and realized that this is impossible.

The ov-chipkaart part is now available and working in the source of github/wandcode/farebot. I have tried and confirmed that this is working. You will need to crack the MiFare classic keys first, this is only possible on a ov-chipkaart by NXP-semiconductors (so not the Infineon version)

I don't have a RFID card reader... Is it possible to dump the chipkaart keys with the Samsung Nexus and then crack the keys with the PC?

Credit
Funny
Now to find out how to upload vitual cash

leto78 said:
I don't have a RFID card reader... Is it possible to dump the chipkaart keys with the Samsung Nexus and then crack the keys with the PC?
Click to expand...
Click to collapse
No that's where the power of chip-cards come in play. There are no keys on it who a external device will receive and decipher. A Mifare Classic card has a built-in authentication system which you will have to pass to read/write onto the card.
The only possible way i could think of is to take the known key from the card, generate a dictionary on a computer and then bruteforce with a phone. But i think that would be more time/hassle then buying a 20 dollar NFC reader.

Factionwars said:
The only possible way i could think of is to take the known key from the card, generate a dictionary on a computer and then bruteforce with a phone. But i think that would be more time/hassle then buying a 20 dollar NFC reader.
Click to expand...
Click to collapse
All the Mifare card readers I could find cost at least 40 euros... Do you recommend any cheap ones?

leto78 said:
All the Mifare card readers I could find cost at least 40 euros... Do you recommend any cheap ones?
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Click to collapse
Ah you have to take a look around, there are loads of people owning a acr122u(touchatag) who bought them when the ov chipkaart got cracked, prices have been rising i guess. Try second hand

Factionwars said:
Ah you have to take a look around, there are loads of people owning a acr122u(touchatag) who bought them when the ov chipkaart got cracked, prices have been rising i guess. Try second hand
Click to expand...
Click to collapse
Anyone heard about the news today? The OV got hacked again.
You guys know any of this?

dragonwith said:
Anyone heard about the news today? The OV got hacked again.
You guys know any of this?
Click to expand...
Click to collapse
Here a hidden post on the details http://www.totalov.nl/m/index.php?type=n&n=166
I have been on it all morning, and it seems to be more of a theoretical hack rather than a real PoC. I also still don't understand how you could attach a sticker to a nfc card and the reader will read the sticker instead of the nfc card, it will read both in my logic.

Any news or how to's available.
Hi guys any app or news available on how to do this.
If anyone in holland is willing to help me with a dumpfile of my 0V chip card for a reward, sent me a pm please.:good:

Factionwars said:
Here a hidden post on the details http://www.totalov.nl/m/index.php?type=n&n=166
I have been on it all morning, and it seems to be more of a theoretical hack rather than a real PoC. I also still don't understand how you could attach a sticker to a nfc card and the reader will read the sticker instead of the nfc card, it will read both in my logic.
Click to expand...
Click to collapse
Isnt it kinda obvious that you have a huge sticker on your OV. Like Checkers can just take of the sticker and they can see its fake.

dragonwith said:
Isnt it kinda obvious that you have a huge sticker on your OV. Like Checkers can just take of the sticker and they can see its fake.
Click to expand...
Click to collapse
No Mifare classic stickers can be very small, and then again you can also attach it to the card holder it's in and when you get asked to take it out you just have bad luck. Though i am more interested in the Tech and Security rather then abusing it.

Hey guys. I'm willing to help and work together to make this work. I've also noticed that the forum of the last hack, ov-chipkaart.me is down. Does anyone know anything about this?

Factionwars said:
Here a hidden post on the details ---
I have been on it all morning, and it seems to be more of a theoretical hack rather than a real PoC. I also still don't understand how you could attach a sticker to a nfc card and the reader will read the sticker instead of the nfc card, it will read both in my logic.
Click to expand...
Click to collapse
The sourcecode of Farebot is avalible on github if you didn't already find it.
Since it can already read the data it must not be hard to be able to write it back to a new tag..
If you need any help or a Mifare reader you can contact me.
---------- Post added at 12:42 PM ---------- Previous post was at 12:37 PM ----------
DamianSewo said:
Hey guys. I'm willing to help and work together to make this work. I've also noticed that the forum of the last hack, ov-chipkaart.me is down. Does anyone know anything about this?
Click to expand...
Click to collapse
Just visit archive (I cant link, since < 10 posts. Google it, 1st link) and use the Way Back Macine.

Nfc key fob

Is it possible to use my phone as a key fob for my apartment complex? Or say my workplace?
I saw the big confirmed NFC list elsewhere, but was curious of anyone has tried or knows about this.
Thanks
Sent on the run. Band on the run.

This has been talked about before, no you cant, its not using the same technology. The easiest way to check this is to get the NFC reader for your phone and try to read whatever your trying to use, like a security card for the building, it will not read it and this will tell you its not the same. I had the same idea as at work I have a Prox II card to get in and around the building, tried to read it and it would not work, I checked the web and sure enough its not the same frequency or something along those lines. At this time its only good for paying at places that have the ability and messing with your own tags.

Where is the actual NFC device? Is it in the Battery?
Im curious if it's upgradable (aftermarket, of course) to add on more frequencies

axel4401 said:
Where is the actual NFC device? Is it in the Battery?
Im curious if it's upgradable (aftermarket, of course) to add on more frequencies
Click to expand...
Click to collapse
For the S3 it is in the battery as you say. So an aftermarket battery will likely not have the NFC functionality in there that you would like.

pilothaz said:
For the S3 it is in the battery as you say. So an aftermarket battery will likely not have the NFC functionality in there that you would like.
Click to expand...
Click to collapse
Unless it specifies that it has a NFC chip in it. I know some do.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

NFC Implant GT-I9505

Hey everyone, So I want to get an NFC chip implanted into my hand, don't ask why, ill think of a reason later.
For now I just want somebody more knowledgeable than I to tell me if this tag I am looking at [xM1 [Mifare S50 2x12mm Glass Tag]] Would be compatible with the broadcom NFC chip in my Galaxy S4 I9505?
It says on the page, " 13.56MHz ISO/IEC 14443-A Mifare S50 1K RFID chipset "
I believe there is a rule I cannot post links to pages with products for sale ?
Its from a site called dangerous things, as that's the first I found selling implantable chips..
Share with me your information please And thank you in advance!
And while im at it, Im trying to think of some cool uses for it, Is it possible to write to it something that lets me use it to pay for things ?
I have heard of people that do this..

As far as i know the broadcom nfc chip does not support the mifare protocol. You may be able to write NDEF data to it but i don't think you will be able to use the original mifare protocol.
Also i suggest you look into chips who can run you custom code like javacard

Factionwars said:
As far as i know the broadcom nfc chip does not support the mifare protocol. You may be able to write NDEF data to it but i don't think you will be able to use the original mifare protocol.
Also i suggest you look into chips who can run you custom code like javacard
Click to expand...
Click to collapse
Hmm, Alright, Thanks for that info!
Cant seem to find any non-Mifare 12x2 glass chips, so looks like ill have to wait :/

CountParadox said:
Hmm, Alright, Thanks for that info!
Cant seem to find any non-Mifare 12x2 glass chips, so looks like ill have to wait :/
Click to expand...
Click to collapse
We will have an NTAG203 based option coming to Dangerous Things soon... perhaps via a kickstarter. The NTAG203 is a NFC Type 2 compliant tag, meaning it will work with any certified NFC device or mobile phone.

ishmell said:
We will have an NTAG203 based option coming to Dangerous Things soon... perhaps via a kickstarter. The NTAG203 is a NFC Type 2 compliant tag, meaning it will work with any certified NFC device or mobile phone.
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Click to collapse
I would be extremely interested in this.

Mifare Classic is a proprietary format, s4 does support mifare ultralight.
Beamed from my Maguro

Mach3.2 said:
Mifare Classic is a proprietary format, s4 does support mifare ultralight.
Beamed from my Maguro
Click to expand...
Click to collapse
what about samsung s3?

zuluman said:
what about samsung s3?
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Click to collapse
A quick Google search will tell you the results. If the s3 uses a NXP NFC controller, then it can read mifare classic cards, of not it will throw a error.
Beamed from my Maguro

Mach3.2 said:
Mifare Classic is a proprietary format, s4 does support mifare ultralight.
Beamed from my Maguro
Click to expand...
Click to collapse
sorry duble replly

Mach3.2 said:
A quick Google search will tell you the results. If the s3 uses a NXP NFC controller, then it can read mifare classic cards, of not it will throw a error.
Beamed from my Maguro
Click to expand...
Click to collapse
In other words yes.

Please don't do this. It might seem cool, but there are implications far beyond what you can possibly imagine.
Sent from my DROID RAZR MAXX HD

abuttino said:
Please don't do this. It might seem cool, but there are implications far beyond what you can possibly imagine.
Sent from my DROID RAZR MAXX HD
Click to expand...
Click to collapse
such as ?

God, all these NFC tags are so small. 150ish bytes? What year are we in... Hell, I read a press release about some company 2k type 4 NFC chips, but every tag I find online is a tiny ntag203... I can't even save my contact info on one of those things.
Sent from my DROID MAXX via Tapatalk 4.

Casen said:
God, all these NFC tags are so small. 150ish bytes? What year are we in... Hell, I read a press release about some company 2k type 4 NFC chips, but every tag I find online is a tiny ntag203... I can't even save my contact info on one of those things.
Sent from my DROID MAXX via Tapatalk 4.
Click to expand...
Click to collapse
You can get DESfire EV1 tags on eBay, 8k. But it's slow..
Sent from my GT-I9505 using XDA Premium 4 mobile app

I've got an implant from dangerousthings. The guy who runs it is very intelligent, very well connected to all the right people, tech, body mod, health, etc.
I've had it in for probably about a month, I got it a day before we started our trip to burning man, and even out there with so little time to heal it was fine.
I love NFC and have been writing all kinds if crazy apps that utilize it, so the tag gets a ton of use. I'm planning on getting an NFC door lock and building and NFC auto start for my car. There are soany awesome things you can do with NFC, and having a secure one on you at all times is pretty awesome.
I also have a magnet in theother hand. h

abuttino said:
Please don't do this. It might seem cool, but there are implications far beyond what you can possibly imagine.
Sent from my DROID RAZR MAXX HD
Click to expand...
Click to collapse
No seriously, please elaborate.
r2DoesInc said:
I've got an implant from dangerousthings. The guy who runs it is very intelligent, very well connected to all the right people, tech, body mod, health, etc.
I've had it in for probably about a month, I got it a day before we started our trip to burning man, and even out there with so little time to heal it was fine.
I love NFC and have been writing all kinds if crazy apps that utilize it, so the tag gets a ton of use. I'm planning on getting an NFC door lock and building and NFC auto start for my car. There are soany awesome things you can do with NFC, and having a secure one on you at all times is pretty awesome.
I also have a magnet in theother hand. h
Click to expand...
Click to collapse
What are some uses you can come up with ?
I can't use the mifare S50 chip they sell Dx
Sent from my GT-I9505 using XDA Premium 4 mobile app

CountParadox said:
No seriously, please elaborate.
What are some uses you can come up with ?
I can't use the mifare S50 chip they sell Dx
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Damn. XDA cut a ton of my reply out.
So, first off, ignore the "implications" guy. I cant tell you how many times ive heard its the mark of the beast, or that its a tracking device, or that its a dna harvester, etc etc. Cant beat crazy.
Anyways, I am an app developer, look up my name on the market. I LOVE NFC, most of my newer apps use NFC in some way. I have an app called NFCSecure that locks your device unless you have the nfc tag you setup as a key. thats a pretty big one.
Also tag a hue. turns tags into light switches for hue lights. i can lay in bed, scan my tag and if my light is off, it goes on and vice versa.
My ltest app is nfcvault. uses the tag as an encryption key for passwords, pins, etc.
https://market.android.com/search?q=r2doesinc&c=apps

r2DoesInc said:
Damn. XDA cut a ton of my reply out.
So, first off, ignore the "implications" guy. I cant tell you how many times ive heard its the mark of the beast, or that its a tracking device, or that its a dna harvester, etc etc. Cant beat crazy.
Anyways, I am an app developer, look up my name on the market. I LOVE NFC, most of my newer apps use NFC in some way. I have an app called NFCSecure that locks your device unless you have the nfc tag you setup as a key. thats a pretty big one.
Also tag a hue. turns tags into light switches for hue lights. i can lay in bed, scan my tag and if my light is off, it goes on and vice versa.
My ltest app is nfcvault. uses the tag as an encryption key for passwords, pins, etc.
https://market.android.com/search?q=r2doesinc&c=apps
Click to expand...
Click to collapse
haha yeah, I just wanted to hear what they had to say, xD Dont you find the stories funny ?
Oooh nice, Ill have a look see through some of your apps. They look pretty cool!
You should make one that encrypts data like images or videos or documents that requires an NFC tag to decrypt! /wouldBuy 10/10

CountParadox said:
haha yeah, I just wanted to hear what they had to say, xD Dont you find the stories funny ?
Oooh nice, Ill have a look see through some of your apps. They look pretty cool!
You should make one that encrypts data like images or videos or documents that requires an NFC tag to decrypt! /wouldBuy 10/10
Click to expand...
Click to collapse
just finished my proof of concept app for file encryption via nfc. will be rolling it into nfcvault in time.

r2DoesInc said:
I've got an implant from dangerousthings. The guy who runs it is very intelligent, very well connected to all the right people, tech, body mod, health, etc.
I've had it in for probably about a month, I got it a day before we started our trip to burning man, and even out there with so little time to heal it was fine.
I love NFC and have been writing all kinds if crazy apps that utilize it, so the tag gets a ton of use. I'm planning on getting an NFC door lock and building and NFC auto start for my car. There are soany awesome things you can do with NFC, and having a secure one on you at all times is pretty awesome.
I also have a magnet in theother hand. h
Click to expand...
Click to collapse
I hope you never handle my hard drive.

Tons of write protected cards

I want to russia for a two week vacation last month... and i discovered something ultra cool about their train cards...
So now i have this huge pack of russian metro passes and they all have nfc chips in them...
unfortunately, these passes are all write protected...
is there any way to completely wipe these cards and get write permissions....

LOL! How did you get all those cards?
did you really ride the train THAT much? or did you just collect discarded ones along the way?

DreadApex said:
LOL! How did you get all those cards?
did you really ride the train THAT much? or did you just collect discarded ones along the way?
Click to expand...
Click to collapse
lmao.. all of those are single ride cards... we were never sure how many rides we would need to get to places and back so we decided to just buy single ride cards during the entire vacation...

I don't think there's anyway.
Anyway, what kind of cards are these?
Beamed from my Maguro.

most of the time, you don't hafta rewrite them to be useful...depending on what you use them for.
if you want to use them to share specific info, you might be out of luck.
If you want to use them to initiate things (like with tasker), you can simply have it trigger when it reads those specific cards, no writing required!

DreadApex said:
most of the time, you don't hafta rewrite them to be useful...depending on what you use them for.
if you want to use them to share specific info, you might be out of luck.
If you want to use them to initiate things (like with tasker), you can simply have it trigger when it reads those specific cards, no writing required!
Click to expand...
Click to collapse
yeah, thats what happens but it still isn't what i want as i want to program the card on one device and be able to use it on another device as well... instead of having every device memorize the tag id... i want them to recognize the code...

unfortunately, I don't think you can unlock tags once they have been locked.

I don't think there is a way either
Sent from my SCH-I545 using xda app-developers app

davidmargolin said:
I want to russia for a two week vacation last month... and i discovered something ultra cool about their train cards...
So now i have this huge pack of russian metro passes and they all have nfc chips in them...
unfortunately, these passes are all write protected...
is there any way to completely wipe these cards and get write permissions....
Click to expand...
Click to collapse
I think you should sell me one c;
What tech are they ?
MiFare? DesFire? NTAG203?

CountParadox said:
I think you should sell me one c;
What tech are they ?
MiFare? DesFire? NTAG203?
Click to expand...
Click to collapse
mifare
DreadApex said:
unfortunately, I don't think you can unlock tags once they have been locked.
Click to expand...
Click to collapse
:'(

davidmargolin said:
mifare
:'(
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god damnit s4 stop accepting only nfc forum tags >>

This makes me wonder why more company's don't implement this into things. Would'nt it be awsome to scan your phone to get in a building or on a bus, or an ID/Drivers Lisnce that can just be scanned to ID you in a traffic stop or to get in a bar or whatever?
Sent from my HTC-PG762 using xda app-developers app