MIFARE DESFire EV2 vs MIFARE DESFire Light
MIFARE DESFire EV2 offers 2-32 KB memory with AES-128 + proximity check security, making it ideal for high-security transit, national ID, government. MIFARE DESFire Light provides 640 bytes with AES-128 + LRP security, suited for transit tickets, loyalty, micro-payment tokens.
MIFARE DESFire EV2
MIFARE DESFire Light
MIFARE DESFire EV2 vs MIFARE DESFire Light
EV2 and DESFire Light serve completely different deployment tiers. EV2 is a full-featured multi-application secure card platform; DESFire Light is a cost-optimized single-application disposable ticket chip.
Overview
MIFARE DESFire EV2: AES-128, Proximity Check, MIsmartApp, 2–32 KB, full DESFire file system with multiple AIDs. High-assurance, multi-year card credentials.
MIFARE DESFire Light: AES-128 + LRP, single application, fixed file structure, 640 bytes, simplified ISO 14443ISO 14443Standard for contactless smart cards at 13.56 MHz (Types A and B)View full →-4 command set. Low-cost disposable tickets.
Key Differences
- Multi-application: EV2 supports multiple AID-isolated applications. DESFire Light supports exactly one.
- Memory: EV2 up to 32 KB; DESFire Light 640 bytes.
- Proximity Check: EV2 includes relay attack protection. DESFire Light does not.
- Cost: DESFire Light costs ~4–6× less than EV2 at volume, enabling AES security in disposable ticket contexts.
- LRP: DESFire Light uniquely supports LRP (Leakage Resilient Primitive) authenticationauthenticationIdentity verification of NFC tags/readers via passwords or cryptographyView full → mode alongside AES-128. EV2 supports AES-128 and 3DES.
- Target lifecycle: EV2 cards are issued for years. DESFire Light tickets may be used for a single journey.
Technical Comparison
| Parameter | MIFARE DESFire EV2 | MIFARE DESFire Light |
|---|---|---|
| Memory | 2–32 KB | 640 bytes |
| Security | AES-128, Proximity Check | AES-128, LRP |
| Applications | Multiple (AID isolated) | Single |
| Proximity Check | Yes | No |
| MIsmartApp | Yes | No |
| Protocol | Full ISO 14443-4 | ISO 14443-4 (subset) |
| Target lifecycle | Multi-year | Disposable |
| Typical cost (volume) | $0.50–$1.00 | $0.12–$0.28 |
Verdict
These chips occupy different market tiers and are complementary rather than competing. Use EV2 for long-lived, multi-application card credentials requiring relay attack protection. Use DESFire Light for disposable, single-application tickets where cost is the primary driver. A transit operator might issue EV2 for season passes and DESFire Light for single-journey tickets.
Рекомендация
Choose MIFARE DESFire EV2 when you need relay attack protection via proximity check; choose MIFARE DESFire Light when you need DESFire security in a cost-optimized package.