Key takeaways
- AES-128 and SUN authentication secure NFC interactions.
- NTAG 424 DNA tags prevent cloning without apps.
- TagTamper ICs detect tampering and enable status messaging.
- Common Criteria EAL4 certification ensures robust security.
- Supports fast communication and encrypted mutual access.
Talk to the product expert
Sylvia Kaiser-Kershaw, Global Marketing - Smart Products & Services
Detailed product information
A powerful mix of security, privacy & trust for NFC in today’s IoT
NXP’s NTAG 424 DNA family sets a new benchmark for secure NFC interactions in connected products and IoT. Built on attack-resistant, certified silicon, these tags combine strong cryptography, privacy-by-design features, and real-time authenticity checks—helping brands protect products, data, and customer experiences from the first tap.
At the core is AES-128 cryptographic security and Secure Unique NFC (SUN) authentication, which generates a fresh, verifiable message on every read by an NFC-enabled smartphone, making taps effectively unclonable, with no app required. Fine-grained, crypto-secure access conditions protect sensitive data, enabling trusted product engagement, secure content delivery, and authenticated user experiences in real time.
For use cases that demand physical integrity monitoring, NTAG 424 DNA TagTamper ICs add tamper detection. When integrated into a seal or label, the optional tamper loop can detect a once-opened state and support status-aware messaging—so the consumer (or operator) can see different experiences before and after opening.
Key features
Maximum NFC interoperability: ISO/IEC 14443-A, NFC Forum Type 4 Tag
416 bytes memory organized in three data files:
32 bytes CC
256 bytes NDEF file
128 bytes secure file
Common Criteria® EAL4 certified security
Standard AES-128 cryptography
SUN message authentication to make taps unclonable — no app needed
Mutual authentication to access protected data
Protected communication over the contactless air interface
NXP originality signature and AES-128-based originality check for tag-origin assurance
Random ID & encrypted UID for enhanced privacy protection
Ultra-fast communication up to 848 kbit/s for fast read/write
Optional tamper loop for once-opened status detection (NTAG 424 DNA TagTamper)
Applications
Advanced anti-counterfeiting
Secure supply-chain traceability with authorized data access
Hyper-personalized content and customer experiences
Trusted offers: vouchers, loyalty coupons, promotions
Authenticated documents
Auditable trail of presence
Tamper proofing (NTAG 424 DNA TagTamper)
Status-driven messaging pre-/post-retail (NTAG 424 DNA TagTamper)
Product Images
