Both attacks combined and with the right hardware equipment such as proxmark3, one should be able to clone any MIFARE Classic card in not more than 10 seconds.The MIFARE name covers seven different kinds of contactless cards: MIFARE Ultralight low-cost ICs that employ the same protocol as MIFARE Classic, but without the security part and slightly different commands MIFARE Ultralight C the first low-cost ICs for limited-use applications that offer the benefits of an open 3DES cryptography MIFARE Classic (Standard) employ a proprietary high-level protocol instead of ISOIEC 14443-4, with an NXP proprietary security protocol for authentication and ciphering.MIFARE Plus drop-in replacement for MIFARE Classic with certified security level (AES 128 based) MIFARE DESFire EV1 are smartcards that comply to ISOIEC 14443-4 with a mask-ROM operating system from NXP.
MIFARE Proximity, SmartMX are NXP Semiconductors brand names for smartcards that comply to ISOIEC 14443-4. Thanks to their reliability and low cost, those cards are widely used for electronic wallet, access control, corporate ID cards, transportation or stadium ticketing. The MIFARE Classic 1K offers 1024 bytes of data storage, split into 16 sectors; each sector is protected by two different keys, called A and B. They can be programmed for operations like reading, writing, increasing value blocks, etc.). MIFARE Classic 4K offers 4096 bytes split into forty sectors, of which 32 are same size as in the 1K with eight more that are quadruple size sectors. MIFARE Classic mini offers 320 bytes split into five sectors. For each of these card types, 16 bytes per sector are reserved for the keys and access conditions and can not normally be used for user data. Mifare Classic Vs Mifare Desfire Serial Number Of TheAlso, the very first 16 bytes contain the serial number of the card and certain other manufacturer data and are read only. That brings the net storage capacity of these cards down to 752 bytes for Classic 1k, 3440 bytes for Classic 4k, and 224 bytes for Mini. The simplicity of the basic cards means that they are inexpensive, which is largely the reason for their success in large-scale deployments, such as Oyster card. The MIFARE Classic encryption Crypto-1 can be broken in about twelve seconds on a laptop, if approx. The attack proposed in recovers the secret key in about 40ms on a laptop. This attack requires just one (partial) authentication attempt with a legitimate reader. Additionally there are a number of attacks that work directly on a card and without the help of a valid reader device. In April 2009 new and better card-only attack on MiFare Classic has been found. It was first announced at the Rump session of Eurocrypt 2009. This attack will be presented in July 2009 at SECRYPT 2009 conference. Mifare Classic Vs Mifare Desfire Full Description OfThe full description of this latest and fastest attack to date can also be found in the IACR preprint archive. The new attack improves by a factor of more than 10 all previous card-only attacks on MiFare Classic, has instant running time, and it does not require a costly precomputation. The new attack allows to recover the secret key of any sector of MiFare Classic card via wireless interaction, within about 300 queries to the card. It can then be combined with the nested authentication attack in the Nijmegen Oakland paper to recover subsequent keys almost instantly.
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