MIFARE Plus

MIFARE Plus is a family of contactless smart card ICs developed by NXP Semiconductors. It is part of the broader MIFARE product line, widely used in applications such as public transportation, access control, loyalty cards, and e-government systems.

MIFARE Plus is designed to offer enhanced security over older technologies like MIFARE Classic, while maintaining backward compatibility for a smoother migration path.

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Common Uses:

• Transit fare cards
• Employee or student ID cards
• City cards
• Access control systems

Key Features of MIFARE Plus:

1. Security Levels:
   • SL0 (Security Level 0): Pre-personalization.
   • SL1: Emulates MIFARE Classic, offering legacy Crypto1 encryption.
   • SL2: Same as SL1 but with access to AES-based commands.
   • SL3: Full AES-based security (128-bit AES encryption).
   • SL4 (in some variants): Highest security level with additional features.
2. AES Encryption:
   • Upgraded from the outdated Crypto1 algorithm used in MIFARE Classic.
   • Provides strong mutual authentication, data integrity, and confidentiality.
3. Migration Support:
   • Allows systems to start in Classic mode (SL1) and upgrade later to full AES security (SL3), aiding in gradual system upgrades.
4. Memory:
   • Available in different memory sizes (e.g., MIFARE Plus S/X with 2K or 4K EEPROM).
5. Variants:
   • MIFARE Plus S: Straightforward migration path, secure.
   • MIFARE Plus X: Enhanced flexibility and performance, better suited for complex applications.

• Mifare Card Types

• MIFARE cards come in several types, including MIFARE Classic, MIFARE DESFire, MIFARE Ultralight, and MIFARE Plus. Each type offers different features and security levels, making them suitable for various applications like access control, public transport, and ticketing.