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They are ASIC-based and have limited computational power.
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 name (derived from the term MIkron FARE Collection System) covers four families of contactless cards: There is also the MIFARE SAM AV2 contact smart card.
This can be used to handle the encryption in communicating with the contactless cards.
It provides an easy upgrade of existing infrastructures toward high security.MIFARE Ultralight EV1 introduced in November 2012 the next generation of paper ticketing smart card IC for limited-use applications that offers solution developers and operators the maximum flexibility for their ticketing schemes and additional security options.