NTAG 424 DNA
NXP
NTAG 424 DNA (TagTamper) features and hints - LRP mode
Application NoteNxp
NTAG 424 DNA (TagTamper) features and hints - LRP mode
Guidelines and examples for configuring and personalizing NXP NTAG 424 DNA and NTAG 424 DNA TagTamper ICs in Leakage Resilient Primitive (LRP) mode for secure messaging.
Overview
This application note provides technical guidance for developers implementing the Leakage Resilient Primitive (LRP) mode on NXP NTAG 424 DNA and NTAG 424 DNA TagTamper NFC tags. LRP is described as a Pseudo-Random-Function (PRF) built on AES that provides leakage resilience, fault attack security, and side-channel attack protection. The document defines cryptographic variables, byte order conventions, and detailed communication sequences. It includes step-by-step examples for the AuthenticateLRPFirst command to establish session keys and the SetConfiguration command to irreversibly switch the IC into LRP secure messaging mode.
Use Cases
- Developing secure NFC messaging applications
- Implementing side-channel attack protection in RFID tags
- Personalizing NTAG 424 DNA tags for tamper detection
- Configuring leakage resilient cryptographic primitives
- Establishing secure communication sessions between NFC tags and backend systems
Topics
NXP
NTAG 424 DNA
NTAG 424 DNA TagTamper
LRP mode
Leakage Resilient Primitive
NFC
AES encryption
Secure Messaging
CMAC
AuthenticateLRPFirst
AN12321
Referenced Parts
NTAG 424 DNA TagTamper
NXP
Keywords NTAG 424 DNA, NTAG 424 DNA TagTamper, Configuration, Personalization, LRP mode
| NTAG 424 DNA | NXP | NTAG 424 DNA (TagTamper) features and hints - LRP mode |
| NTAG 424 DNA TagTamper | NXP | Keywords NTAG 424 DNA, NTAG 424 DNA TagTamper, Configuration, Personalization, LRP mode |