Contactless chips for limited use have been popular in public transportation for some years. NXP, just like in mifare case, has been leading this market with mifare ultralight. Ultralight chips have limited memory and no crypto support, but have OTP (one time programmable) memory area which is perfect for enabling the restriction the limited use of the ticket. Later on NXP developed a next generation of Ultralight, which is called Ultralight C. Ultralight C supports 3DES in addition to its elder brother Ultralight. Good.
Of course, Ultralight is not the only product in the market. Infineon, as one of the strongest players in the semi-conductor manufacturers have a great product as a competitor to NXP’s Ultralight family called my-d move. my-d move is a member of my-d family of Infineon and has 128 bytes of memory for application and supports 32 bit password for authentication. It also supports password re-try counter feature against brute force attacks. Unlike Ultralight C, my-d move does not have any keys stored in the chip, but has a secure code which is written at the time of issuing the chip. Secure code is authenticated at the time of using the chip along with the password.
One great future of my-d move is, just like Mifare Ultralight, the support for NFC Type 2 Tag Operations. This practically means that my-d move can interact with NFC devices like handsets or other contactless readers. This opens a whole new world for these products. Infineon positions the product as a limited use media like single trip ticket for transportation or event ticketing. Imagine tickets for a rock music event being formatted by a cell phone on an over-the-air service. my-d move and Ultralight opens a gate for enabling projects like this. You can create the ticket with a mobile phone and then send the ticket data to central host over GPRS/3G connection of the mobile handset. You can also validate/invalidate tickets via NFC handsets. Great opportunity. One great addition to this would be the usage of the ticket for buying a drink inside the event. Or think of voting for polls displayed on kiosks with contactless readers and people voting and identifying themselves with the contactless ticket.
Basicly, my point is that these chips are great for any type of ticketing, not limited to limited use for transportation.