MIFARE DESFire EV1 and MIFARE DESFire EV2 Chip Families
The MIFARE DESFire EV1 contactless chip meets the demands for a secure and cost efficient NFC solution. It features a high speed triple-DES data encryption coprocessor and a flexible memory organization structure.
This card is a great solution for adding MIFARE applications to existing HID Proximity technology access control systems. It provides a high level of security through mutual authentication and AES data encryption.
What is a MIFARE DESFire EV1?
MIFARE DESFire is NXP’s premium contactless chip that offers a very high level of security. This makes it suitable for various applications such as access control (including military environments), micropayments, ticketing, public and private transportation as well as loyalty programs. The MIFARE DESFire chip uses on-chip DES, 2K3DES, 3K3DES and AES hardware encryption, which protects data from unauthorized reading or eavesdropping by third parties.
In addition, the DESFire EV1 chips have an internal synchronization mechanism that ensures a consistent data flow, even if the chip is accessed by different readers simultaneously. It also includes a proximity detection mechanism that can verify if the card is close enough to the reader to be processed.
This ensures that a reader’s data stream is only transmitted to the card once it is authenticated and within range of the card’s antenna. The MIFARE DESFire EV1 chip has a read range of up to 10cm, depending on the reader’s form factor and antenna size.
Its open concept enables the seamless future integration of varied ticketing forms such as key fobs, mobile ticketing and smart paper tickets as well as ID cards using Near Field Communication technology. It offers a perfect balance of cost efficiency, speed and card performance while providing superior levels of reliability and consumer-friendly design. It supports multiple application files, and a unique 56-bit serial number, mutual authentication, on-chip backup management system and AES Triple DES data encryption.
What is a MIFARE DESFire EV2?
The MIFARE DESFire EV2 chip is an open platform contactless smart card that enables multi-application, secure data transmission and interoperability in existing systems. It offers reliable, high speed data transfer and a flexible tree-style memory organization with up to 28 applications (with 16 files per application). contact smart card Its security features include on-chip backup management system and triple DES authentication for maximum protection. It uses ISO/IEC 14443-4 transport protocols and has a cryptographic acceleration engine that allows for a high number of transactions to be processed at once.
MIFARE DESFire EV2 supports a wider range of applications than EV1 and has higher operating distances. It also enables rolling key sets, which will automatically switch to a new set of keys in the event of a compromised key so that data cannot be recovered by attackers. Moreover, it offers staggered key management, which will enable the use of multiple encryption keys for different applications.
This makes MIFARE DESFire EV2 the ideal choice for advanced public transportation, closed loop micropayment, student ID cards and access control applications where the chip is likely to be used in harsh environments. It is compatible with the NXP SmartMX secure smart card chip and can also be integrated into key fobs, Combiwatches and mobile ticketing using Near Field Communication technology. Its open concept also means that it is suitable for future tailored integration of varied ticketing forms, including smart paper tickets and mobile phones with NFC readers.
What is a MIFARE DESFire EV3?
MIFARE DESFire EV3 is the latest evolution of NXP’s proven contactless MIFARE portfolio enabling an array of new services that are both cost efficient and offer high level security features. This makes it the ideal choice for public transportation, access control or e-government applications requiring closed-loop payment or multi-application functionality.
Featuring an on-chip backup management system and mutual three pass authentication, the chip provides a very secure and reliable platform for implementing multiple applications. It also supports a flexible tree style file structure where the data is stored, allowing the card to hold 28 different applications with up to 32 files. Its automatic anti-tear mechanism guarantees transaction oriented data integrity.
This chip is more secure than previous versions with a dedicated hardware cryptographic engine for enciphering transmission data. This helps to prevent unwanted unauthorized reading of the chip. The EV3 also includes a new transaction timer feature that helps to mitigate man-in-the-middle attacks.
In addition, the EV3 allows for a more flexible and convenient application management system through the use of keys that enable delegated application management. This means that once a chip is in the field, additional applications can be loaded remotely via NFC enabled phones.
Another feature is backward compatibility mode with Classic 1K – this gives institutions the option of migrating to a more secure chip in a phased approach, rather than having to mifare desfire ev1 replace all existing readers. The EV3 also supports a variety of security features including the Common Criteria EAL 5+, a transaction timer and configurable ATS (Application Terminal Security) information for card personalisation.
What is a MIFARE DESFire EV4?
MIFARE DESFire is a contactless chip family for multi-application smart card solutions in access control, loyalty and micropayment applications as well as transport schemes. The chips offer fast and secure data transmission and flexible memory organization. This makes them ideal for integrators, system developers and end users alike.
The DESFire family of chips offers a wide range of features that increase security over previous generations. These include enhanced hardware-enhanced security features as well as a number of security protocols and procedures to help protect data in transit, in storage and on the chip itself. These security measures include a more secure key management, a more secure operating system and the ability to verify the authenticity of applications that are installed on a chip.
HID’s DESFire credentials utilize the latest generation of the DESFire chip from NXP. The DESFire EV3 chip provides enhanced security through a secure channel-based file transfer, proximity control and cryptographic features such as AES128 encryption. These features help to prevent social engineering attacks and prevent the hacking of the card’s data through spoofing or cloning.
The EV3 chip also supports a new function that is not found in earlier versions of the DESFire chips, called Proximity Identification. This feature enables the card to confirm to the reader that it is close to the POS and not accessed via remote data stream from a cybercriminal or hacker. This is accomplished by generating a unique security authentication code each time the chip is read, essentially acting as a disposable key generator for each operation.