NFC I2C bridge tag for contactless authentication and secure configuration of IoT devices
The Infineon OPTIGAā¢ Authenticate NBT is an NFC Type 4 asymmetric tag with an I2C interface, providing a contactless bridge between an NFC reader such as a smartphone and a host microcontroller.
The Infineon OPTIGA Authenticate NBT is a high-performance NFC I2C bridge tag for secure human-machine interfaces (HMIs). The bridge tag enables fast, contactless NFC communication between an IoT device I2C interface and a contactless NFC reader such as a smartphone.Ā
A Type 4 Tag certified by the NFC Forum, the OPTIGA Authenticate NBT can be used for single-tap authentication and secure configuration of an IoT device via an app on the userās smartphone. The tag provides high security because of the Integrity Guard 32 security architecture. It also holds EAL6+ security certification for both the hardware and cryptographic libraries.
The NFC I2C bridge tag supports both symmetric and asymmetric cryptographic authentication, as well as pass-through and asynchronous data communication modes. These can be used for a variety of applications such as:
- Secure configuration of electronic devices with no display
- Activation of shared mobility vehicles
- Passive commissioning of non-powered smart bulbs prior to installation
- Data logging on patient health monitors
Featuring an 8 kbyte memory, the NBT offers ample space to store customer- and application-specific configuration information. High on-chip capacitance facilitates smaller antenna designs for an optimized bill-of-materials and tiny board footprint.