MIFARE is one of the most widely used contactless smart card technologies in the world with 3.5 billion cards and 40 million read / write modules. Most NFC phones are equipped with a chip for emulation of this card. The brand, launched by Philips. MIFARE is based (partially or completely according to the models) on one of the ISO standards describing contactless smart cards: ISO 14443 (en) Type A operating at 13.56 MHz. The technology is integrated in both cards and readers / encoders. These readers are manufactured by different manufacturers on the basis of a component provided by the company NXP.