NT4H2421GS Datasheet | NXP Semiconductors

NT4H2421Gx NTAG 424 DNA - Secure NFC T4T pliant IC Rev. 3.0 - 31 January 2019 Product data sheet PANY PUBLIC 1 General description 1.1 Introduction NTAG 424 DNA (NT4H2421Gx) sets a new standard in secure NFC and Io T applications, introducing a new NTAG DNA chip generation with state-of-the-art Features for security and privacy protection. It es with AES-128 cryptographic operation and a new Secure Unique NFC (SUN) Message feature to generate tap-unique data authentication upon each read-out by an NFC enabled mobile device. This enables most advanced product and content protection, plus secured exclusive user experiences served in real time. NTAG 424 DNA is fully pliant with the NFC Forum Type 4 Tag IC specification (Certification ID: 58562), with the contactless proximity protocol according to ISO/ IEC14443-4 and the ISO/IEC 7816-4 based file system and mand frames, to ensure maximum interoperability within the NFC infrastructure. Its NFC performance supports superior user interaction and reading distances of up to 10 cm. Using AES-128 cryptography, the tag generates a Secure Unique NFC (SUN) message for the authentication each time it is being tapped. An NFC mobile device reads this tap-unique URL with the SUN authentication message, sends it to the host where tag and message authentication take place, and returns the verification result. The SUN authentication mechanism is guaranteed to work on Android (without a dedicated app) and i OS11 (with an app). This way, NTAG 424 DNA offers tag authentication, as well as data assurances on authenticity, integrity and even confidentiality, while also securing physical tag presence, see also Section 9.3. The chip has a file-based memory structure of totally 416 bytes (pliant to NFC Forum Type 4 Tag and ISO/IEC 7816-4) with a Capability Container (CC) file to specify the NFC Forum tag operation, an NDEF file as well as an extra data file to protect sensitive content. Configurable access rights...