NFC Tag NTAG 424 DNA - 22mm Stickers (Advanced Security)
NXP NTAG 424 DNA chips set a new standard for secure NFC and IoT applications. With AES-128 encryption and the SUN (Secure Unique NDEF Message) feature, they provide top-tier protection against counterfeiting and cloning without requiring a dedicated app.
Key Features
- Multi-layered Authentication: Uses AES-128 cryptographic keys to protect data and chip access.
- SUN Message (Secure Unique NDEF): Each "tap" generates a unique, dynamic URL. This code changes constantly, making any "replay" or copy attempt useless.
- CMAC Data Integrity: Each message includes an authentication code that allows the server to verify the chip's authenticity and data integrity.
- Universal Compatibility: Works with all modern Android and iOS smartphones via the web browser.
Technical Specifications
| NFC Chip | NXP NTAG 424 DNA |
| Available Memory | 416 bytes |
| Encryption | AES-128 |
| Format | Round Sticker (Ø 22 mm) |
SUN Practical Example
https://verify.yoursite.com/?picc_data=EF963...&cmac=94EED...

Note: Advanced security features require AES key configuration.




