MIFARE DESFire EV1 Open Concept Smart Card
MIFARE DESFire EV1 cards are ideal for adding smart card applications to existing HID Prox-based access control systems. They also offer a number of security features including mutual authentication and on-chip backup management.
These ISO 14443A transponders / NFC Type 4A Tag Platforms can function in different modes, depending on your application. This article will focus on using the DESFire command Authenticate in AES mode.
EV1’s open concept
The open concept of desfire ev1 allows the card to be used in a variety of ways, including access control and public transportation systems. The chip is based on global standards for air interfaces and cryptographic methods, making it the ideal solution for multiapplication, high-performance contactless cards. It also meets the requirements for speedy and secure data transmission, flexible memory organization, and compatibility with existing reader hardware platforms.
Using an on-chip backup management system and mutual three pass authentication, a MIFARE DESFire EV1 card can store 28 different applications with 32 files per application. Each file has a unique 3 bytes Application IDentifier (AID), which ensures that each application is completely separate from every other. smart card Moreover, the size of each file can be set at the initial design phase, making this chip a truly flexible and convenient product.
The MIFARE DESFire EV1 chips can function in two modes: the standard mode uses single DES encryption, while the AES encryption method is more advanced. The AES mode requires more memory for the stored keys, but it provides superior security and performance. The MSP430G2553 Value Line microcontroller and TRF7970A NFC transceiver can be used to authenticate a MFDFEV1 tag in AES mode. The firmware can also be customized to work with specific AES protocols, such as 3KDES, 2K3DES, and 4K3DES.
EV2’s greater operating distance
The MIFARE DESFire EV2 is the latest addition to NXP’s contactless MIFARE product family. It offers next-generation performance and advanced security to enable smart city services. It supports a variety of applications in the areas of access control, identity, loyalty and closed-loop micropayments for system operators and solution developers. This new IC can be used in a variety of smart card products, including smartphones and NFC-enabled devices.
The EV2 chips deliver improved operating distance over previous versions. They also have a 70pF option to enable read range optimization for small antenna form factors. The chip’s data transfer rate is 848kbit/s, which enables faster transactions. It also features DES, 2K3DES and 3K3DES hardware encryption for privacy and security. It also has EAL5+ security, which means it complies with the same standards as chips that are used in banking cards or electronic passports.
The DESFire EV2 chip also has a new MIsmartApp feature that allows it to hold more applications. This is important because it gives system providers the flexibility to add additional functions on their own or let other parties host them. This feature is a big step forward from the earlier EV1 version, which could only hold up to 28 different applications. This enables a much more flexible and user-friendly experience for end users. It is also easier for companies to update their systems as they grow.
EV2’s EAL5+ security
DESFire is one of NXP’s best chips in terms of security, and has been certified EAL5+. This enables it to be used as a security chip in e-passports and other secure applications such as banking RFID cards and contactless public transport tickets. It is based on open global desfire ev1 standards for both air interfaces and cryptographic methods, and is compatible with existing NFC reader hardware.
It is also designed to be a gateway to new Smart City applications, as it supports the highest level of privacy protection. This is accomplished with special features such as transaction timers and card-generated Transaction MAC. These can help prevent relay attacks from man-in-the-middle hackers and ensure that only the card is authorised to read data.
The EV2 variant offers a greater operating distance of up to 100 mm, allowing for the seamless integration of alternate media such as key fobs, mobile ticketing and smart paper tickets with NFC technology. Its open concept also allows room for the future implementation of multi-application schemes such as closed-loop e-payment applications and loyalty tracking.
Our LuminAXS and OmniArch credentials are based on NXP’s MIFARE Plus EV2 RFID chip, which is mutually authenticated according to ISO/IEC 7816-4 and EAL5+ common criteria certified – making them ideal for multi-application use. They are programmed and ready to use with a site code, card range and application set managed by Honeywell, which means you don’t have to worry about the complex administration of your own cards.
EV2’s flexibility
MIFARE DESFire EV2 offers the perfect balance of speed, performance and cost efficiency. Its open concept allows seamless integration of other ticketing media such as key fobs and mobile ticketing based on NFC technology. Its 70 pF option also enables read range optimization for small antenna form factors, and it’s fully compatible with existing MIFARE readers.
The DESFire EV2 chip has been designed with system operators and solution developers in mind to support interoperable and scalable contactless solutions for ID, access control, transportation and closed-loop micropayment applications. It features a high level of security with DES, 2K3DES, 3K3DES and AES hardware encryption to protect the privacy of transmission data. Its proximity check protects against relay attacks by verifying that the card signal is being sent by a reader in close proximity to the card. EV2 also has on-chip backup management and mutual three-pass authentication.
Unlike EV1, DESFire EV2 is flexible and can support as many applications as its memory size supports. It is even capable of adding new applications after a card has been issued. Moreover, DESFire EV2 is more than twice as fast as EV1 and can transfer up to 848 Kbit/s. It can also be stacked with HID Prox in order to provide the best of both worlds. It is an excellent choice for upgrading legacy systems.