The ISO MIFARE DESFire card from Scopus is a white PVC laminated card compliant with the ISO / IEC 14443A standard. It is ideal for service providers wishing to use multi-application smart cards in transport schemes, e-government or identity applications. It fully meets the requirements of fast, highly secure data transmission, flexible memory organization and interoperability with existing infrastructure. MIFARE DESFire EV1 is based on open global standards for interface and cryptographic methods. It complies with the 4 levels of ISO / IEC 14443A and uses optional ISO / IEC 7816-4 commands. Featuring on-chip backup management and three-pass mutual authentication, a MIFARE DESFire EV1 card can hold up to 28 different applications and 32 files per application. The size of each file is defined when it is created, making MIFARE DESFire EV1 a truly flexible and practical product.