desfire cards

August 23, 2025

desfire cards proposal! desfire cards official support.GOV,desfire cards active! # **Understanding DESFire Cards: The Future of Secure Contactless Technology**

## **Introduction to DESFire Cards**
DESFire cards are a type of **contactless rfid chip price card** based on **RFID (Radio Frequency Identification)** and **NFC (Near Field Communication)** technology. Developed by **NXP Semiconductors**, these cards are widely used in secure access control, public transportation, payment systems, and identity verification.


The **DESFire** name stands for **"Data Encryption Standard Fire"**, highlighting its strong security features. These cards comply with **ISO/nfc custom card 14443 Type A** standards, ensuring compatibility with most **RFID and NFC** readers.

## **Key Features of DESFire Cards**

### **1. High Security with Advanced Encryption**
DESFire cards use **AES (Advanced Encryption Standard) 128-bit encryption**, making them highly resistant to hacking and cloning. They also support **3DES (Triple Data Encryption Standard)** for backward compatibility.


### **2. Flexible Memory Structure**
Unlike traditional **RFID cards**, DESFire cards have a **file-based memory system**, allowing multiple applications to coexist securely on a single card. This makes them ideal for **multi-purpose use**, such as combining access control with e-payment.

### **3. Fast and Reliable Communication**
DESFire cards operate at **13.56 MHz**, the same frequency as most **NFC devices**, ensuring fast and stable data transfer. They support **contactless transactions** in less than **100 milliseconds**, making them perfect for high-speed applications like metro gates.


### **4. Long Lifespan and Durability**
These cards are designed for **long-term use**, with a **10-year data retention** capability. They are resistant to **water, dust, and physical wear**, making them suitable for harsh environments.



## **Applications of DESFire Cards**

### **1. Access Control Systems**
Many corporate offices, government buildings, and universities use **DESFire cards** for secure entry. Their encryption prevents unauthorized duplication, ensuring only authorized personnel gain acc The Use of RFID for Human Identity Verification