The ST25D secure series makes device interactions simple and keeps data safe. It offers secure communication through both a contactless NFC/RFID interface and a wired I²C interface to connect easily with microcontrollers or microprocessors.
What is the ST25D secure series?
The secure series is the easiest way to bring wireless short-range connectivity and security to any IoT device. The series includes NFC Forum Type 4 dynamic tags that operate at high frequency (13.56 MHz) and ready-to-use security features. It comes with a secure element and embeds secure services. Data stored can be securely accessed using any smartphone, NFC/RFID HF professional reader, or a microcontroller via the I²C wired interface.
Applications
Product types
The ST25DA-C dynamic tags simplify secure data storage and make it easier to add any object or device to a Matter network. They offer Matter services supported by hardware and software security features.
- NFC Forum Type 4
- ISO14443-A
- I²C interface, 1.62 V - 3.3 V
- ECDSA with SHA-256
- ECDH for key establishment
- AES-128
- Matter commissioning over NFC (v.1.5 & beyond)
- SPAKE2+ & PAKE protocols
- Secure storage for certificates and keys
- Matter signature generation and verification over I²C
- ST MatterConnect credential service
Benefits
- Allows battery-less Matter commissioning over NFC
- Improves user experience through NFC features and capabilities
- Eases installation for multiple devices on a Matter network
- Offers cryptographic services based on PKI (public key infrastructure)
- Turnkey solution: ST25DA-C can be provisioned with personalized and secure Matter credentials through the ST MatterConnect service
