13.56 MHz Frequency Range
| MIFARE Family | Description | Memory | Security |
|---|---|---|---|
| MIFARE Classic | The most common; used in many access systems | 1KB or 4KB | Proprietary Crypto-1 (easily cracked) |
| MIFARE Plus | Upgraded Classic with better security | 2K/4K | AES (in higher security levels) |
| MIFARE DESFire | Designed for secure ID, payment | Up to 8KB | 3DES / AES, file system support |
| MIFARE Ultralight | Low-cost, limited use | 64B–512B | Limited/no crypto |
MIFARE Classic:
- Divided into sectors (e.g., 16 for 1KB cards, 40 for 4KB)
- Each sector contains:
- Data blocks (stores user data)
- Sector Trailer (contains keys A/B and access conditions)
MIFARE DESFire:
- Structured like a file system
- Multiple applications
- Each app can have multiple files
- Access controlled by keys
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