Since the wallet only works if its signature is in this whitelist file, we can deduce the business strategy.
Below is the list of app signatures in whitelist nfcee_access.xml file in different popular android phones:
– Nexus S, Nexus 4: Google wallet (of course).
I guess this is only way I get Google Wallet if you have T-Mobile & AT&T.
– Verizon Note 2: VZW ISIS + VZW CERT.
ISIS Wallet only.
– T-Mobile GS4: ISIS development + production.
ISIS Wallet only.
– International GS3: Google wallet + Samsung wallet.
Samsung has its own wallet too.
– Sprint GS3: Google wallet
– Sprint GS4: Google wallet + Sequent Wallet.
Reflecting Sprint new business deal with Sequent.
Android provides various NFC card emulation events in hidden com.android.nfc_extras package.
However, I only receive RF_FIELD_ON_DETECTED, RF_FIELD_OFF_DETECTED, AID_SELECTED.
Notes: You need to root your phone first.
# restarts the adbd daemon with root permissions
# remounts the /system partition on the device read-write
# get the whitelist file from device
adb pull /system/etc/nfcee_access.xml
# export certificate to nfcee_access.xml
keytool -exportcert -v -keystore ~/.android/my-release-key.keystore -alias alias_name -storepass password|xxd -p -|tr -d '\n' >> nfcee_access.xml
# The cert is added to the end of the file. You must edit it to add proper tag.
# copy the whitelist file back to device
adb push nfcee_access.xml /system/etc/
I have been playing with several TagInfo apps. Below are 2 I recommend:
I have been working NFC controller for awhile.
But I didn’t have it in my personal phone until last week when I upgraded from Galaxy S2 to S3, which has NFC.
I was like a little kid, going around find tags & credit cards to read.
Yes, credit card. “Chip and Pin” credit card to be exact, not US mag stripe credit card (unless you have Chase Blink or Amex card).
I found 2 apps on Google Play enabling me to read “Chip and Pin” credit card. One of them is Electronic Pickpocket RFID.
This app will not help thieves steal. This app only shows part of your account number as a precaution.
(The other one is very technical & hard to read, so I don’t want to mention it here.)
Here is my experience:
– Very close range !!! (< 1 inches). Almost touching the card.
– Need few seconds to read the card.
– Take several tries to get a good read (due to antenna issue of S3 ?)
Given the limitations above, so your credit card is still safe from consumer NFC phone.
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