MIFARE Classic 4K vs MIFARE DESFire EV3
MIFARE Classic 4K offers 4096 bytes memory with Crypto-1 (broken) security, making it ideal for legacy transit with stored value, multi-application cards. MIFARE DESFire EV3 provides 2-32 KB with AES-128 + SCP03 security, suited for transit, corporate access, national programs.
MIFARE Classic 4K
MIFARE DESFire EV3
MIFARE Classic 4K vs MIFARE DESFire EV3
DESFire EV3 is NXP's current-generation secure card IC. Against Classic 4K, it provides the complete modern NFC security stack: AES-128, proximity check, transaction MAC, SDM, and SCP03 key management.
Overview
MIFARE Classic 4K: 4,096 bytes, Crypto-1Crypto-1Broken proprietary cipher in MIFARE Classic (reverse-engineered 2008)View full → (broken), ISO 14443ISO 14443Standard for contactless smart cards at 13.56 MHz (Types A and B)View full →-3A.
MIFARE DESFire EV3: AES-128, Proximity Check, Transaction MAC, SDM (Secure Dynamic Messaging), SFI (Short File Identifier), SCP03, 2–32 KB. EV3 uniquely supports SDM, enabling NDEF URLs with embedded per-tap cryptographic counters verifiable by a backend server — the same capability that makes NTAG 424 DNA powerful, applied to a full ISO 14443-4 card platform.
Key Differences
- SDM support: EV3 is the only DESFire version with SDM, enabling app-less product authenticationauthenticationIdentity verification of NFC tags/readers via passwords or cryptographyView full → and anti-counterfeiting for card-format credentials.
- Transaction MAC: EV3 appends a verifiable MAC to each card transaction, enabling offline transaction audit.
- SCP03: EV3 supports GlobalPlatform SCP03 for secure over-the-air key and application management.
- vs Classic 4K: Every security dimension favors EV3. Classic 4K has no viable security; EV3 has no known practical attack.
Technical Comparison
| Parameter | MIFARE Classic 4K | MIFARE DESFire EV3 |
|---|---|---|
| Memory | 4,096 bytes | 2–32 KB |
| Security | Crypto-1 (broken) | AES-128, SCP03 |
| SDM | No | Yes |
| Transaction MAC | No | Yes |
| Proximity Check | No | Yes |
| SFI | No | Yes |
| Protocol | ISO 14443-3A | ISO 14443-4 (T=CL) |
| Typical cost (volume) | $0.15–$0.35 | $0.60–$1.20 |
Verdict
For any program currently considering Classic 4K replacement, EV3 is the unambiguous choice. Its SDM capability, transaction MAC, and SCP03 support make it the most feature- complete secure card IC in the MIFARE family.
おすすめ
Choose MIFARE Classic 4K when you need largest Classic with 4 KB memory; choose MIFARE DESFire EV3 when you need latest DESFire with Secure Channel Protocol.