# Mifare DESFire Card: Advanced Contactless Smart Card Technology ## What is Mifare DESFire Card? **Mifare DESFire card** represents the pinnacle of contactless smart card technology developed by NXP Semiconductors. Based on my personal experience working with access control systems, I've found that **Mifare DESFire card** offers superior security and flexibility compared to traditional Mifare Classic cards. The transition to **Mifare DESFire card** in our corporate security infrastructure significantly reduced cloning attempts and provided more granular access control capabilities. ### Technical Specifications and Parameters From my technical background in embedded systems, I've developed a particular skill in analyzing smart card architectures. The **Mifare DESFire card** utilizes sophisticated encryption that makes it ideal for high-security applications. #### **Mifare DESFire EV2 Technical Parameters** **Chip Specifications:** - **Chip Model:** MF3D(H)x2 - **Memory Configuration:** 2KB, 4KB, or 8KB EEPROM - **Communication Interface:** ISO/IEC 14443 Type A - **Operating Frequency:** 13.56 MHz - **Data Transfer Rate:** Up to 848 kbit/s - **Crypto Coprocessor:** 3DES, AES-128, AES-192, AES-256 - **Transaction Time:** < 100ms **Physical Dimensions (Standard Card):** - **Card Size:** 85.6mm × 54mm × 0.76mm (ID-1 format) - **Chip Module:** 8mm × 10mm - **Antenna Dimensions:** 72mm × 42mm (typical) - **Operating Distance:** Up to 10cm (depending on reader) **Security Features:** - **Mutual Three-Pass Authentication** - **ISO/IEC 7816-4 compliant file system** - **Random ID generation for privacy protection** - **True Random Number Generator (TRNG)** - **Tamper detection mechanisms** *Note: These technical parameters are reference data. For exact specifications, please contact our backend management team.* ## Applications and Implementation Cases ### Entertainment Industry Applications In the entertainment sector, **Mifare DESFire card** has revolutionized guest experiences. I recently consulted for a major theme park that implemented **Mifare DESFire card** technology for their cashless payment and access system. The cards not only served as park entry tickets but also stored FastPass reservations, meal plans, and photo package information. The encryption ensured that guest data remained secure while providing seamless interaction with hundreds of readers throughout the park. ### TIANJUN Prod