NFC bridge tag for contactless authentication of IoT devices

Mouser Electronics, Inc. now stocks the NBT2000 OPTIGA NBT NFC Bridge tag from Infineon Technologies. The device is a ready-to-use bridge tag for single-tap authentication and secured configuration of IoT devices. It supports a range of applications, including product activation, device pairing, fault diagnostics, shared mobility solutions, and smart home devices.

The bridge tag features a contactless passive NFC interface and an I2C target interface for high-performance NFC-to-I2C communication. The bridge tag is NFC Forum Type 4 certified and includes an 8KB file system with file-based password protection, one-way authentication using ECDSA asymmetric cryptography, and symmetric AES-128-CMAC-based cryptography. OPTIGA Authenticate NBT ensures ultra-fast data exchange, even at high volumes.

The tag offers three operation modes: authentication, pass-through, and asynchronous data transfer. Its power supply options include an external NFC field or an external power supply (VCC or GND). The bridge tag operates from -40C to +85C and has a +105C maximum ambient temperature rating for I2C communication. It can be used for applications such as secured configuration of electronic devices without a display, activation of shared mobility vehicles, and data logging on patient health monitors.

Infineon Technologies offers two development tools for the NBT2000 bridge tag: the OPTIGA Authenticate NBT development kit and the OPTIGA Authenticate NBT development shield, both of which are available from Mouser. These development tools include pre-tuned antennas, a comprehensive software package, and an NFC-I2C bridge tag. The development kit is an 'all-you-need' bundle, where the development shield is designed to be used with an Arduino UNO-compatible MCU board.