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The NFC Tag Cloner, meanwhile, claims it can 'read one, write one tag' or 'read one, write many tags.' The developers go on to say the app supports 'raw dumps of Mifare Ultralight and Mifare Classic tags.' Specific capabilities include resetting, increasing, or decreasing value blocks. The Mifare Doctor, for example, claims to offer functionality that can read, write, and clone card data.

#Mifare cracker for android

The Google Play market for Android apps hosts a variety of tools purporting to hack various Mifare smartcards. With the use of smartphones, cards can potentially also be 'shared,' allowing multiple people to use the same monthly subscription.' 'Cards can be cloned, for example, which would result in diverting the counter on the duplicate cards and later be detected in the fraud monitoring. 'Given that this micro-payment scheme still uses Mifare Classic, attack tools are readily available,' Nohl told Ars. He said he was aware of previous hacks on the Netherlands transportation card and said it wouldn't be surprising if Android-based hacks existed, too.

#Mifare cracker cracked

More than five years ago, Nohl was part of a team of researchers who cracked the encryption of the Mifare Classic after reverse engineering the card circuitry and discovering a flaw in the cryptographic algorithm stored there. The chip has been modified since then, but thereвЂ™s at least one thread on the xda-developers forums where a user notes that his Android smartphone was able to read out the (encrypted) contents of his OV-Chipkaart with the NFC reader inside his phone.ДЄs recently as last month, the underlying chip inside the Netherlands transportation smartcard was the Mifare Classic, made by Netherlands-based NXP Semiconductors, said Karsten Nohl, chief scientist at Security Research Labs in Berlin. There are also less technical Android apps to circumvent paying for transport, like OV Hacker, which plays the tone a Chipkaart would make when successfully scanned in order to trick bus drivers.ДЄ research article from 2009 laid out how the RFID chip inside the card can be read with an NFC reader, decrypted with one application, and then reloaded with the desired amount by another application.

#Mifare cracker how to

The chip inside the card has been modified repeatedly by the card creator, Trans Link, but there is no shortage of tutorials on how to hack them, and there are plenty of stories about hacks that have taken place. NOS carries little detail on the nature of the hack, but Dutch hackers appear to have a somewhat long and storied history of cracking NetherlandsвЂ™ smartcard, the OV-Chipkaart.

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The crack requires two free apps that allow the cracker to load the card with money and travel without paying anything.

An earlier Dutch report had stated that a security breach on the MiFare cards was possible, but would be too unwieldy for the average attacker to accomplish.The smartcards used to pay for public transportation in the Netherlands may now be hacked with an Android phone, according to a report from NOS.nl. On Monday, the Dutch government issued a final report arriving at the decisive conclusion that the chips, used by millions of citizens in the Netherlands, must be replaced. Karsten Nohl, a computer science graduate student and one of the masterminds behind reverse-engineering MiFare security, said in an interview that it now takes only 12 seconds to recover the key on a MiFare Classic card on an ordinary laptop. Mere seconds are all that is required to crack the chip's security - not a few hours, as estimated last month. The ubiquitous MiFare Classic RFID chip - used daily by millions worldwide in access control keys, subway passes and other applications - is even easier to crack than previously thought, according to security researchers who announced the development Tuesday at EuroCrypt, an international cryptography conference in Istanbul.