Personalization Service Simplifies Matter Device Authentication
STMicroelectronics' ST MatterConnect service securely loads authentication credentials into secure chips used in Matter-compatible smart-home devices. The service provides a convenient, turnkey method to store authentication data in ST25DA-C NFC and STSAFE-A120 secure elements.
Leveraging the company's security infrastructure and certified secure factories, the solution generates and injects in-house credentials into the chip. This includes the mandatory Matter Device Attestation Certificate (DAC) and other data such as cryptographic keys, product/version information, and customer personalization.
Developers can leverage ST’s status as an approved Product Attestation Authority (PAA) and Product Attestation Intermediate (PAI) to ensure trust and compliance without the expense of building secure provisioning infrastructure internally. The company's ST25DA-C and STSAFE-A120 support Matter device authentication, storing sensitive data such as security keys, and executing an optimized set of commands ensuring authentication on tamper-proof secure hardware.
The ST25DA-C tag supports the Matter device NFC commissioning flow, which helps end users quickly connect devices from different ecosystems without multiple proprietary hubs. Connected to the device host via an I2C interface, STSAFE-A120 is a secure element providing authentication for Matter devices and security services for IoT devices such as secure connection establishment and integrity verification, running on a CC EAL5+ certified platform.
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About the Author
Alix PaultreAlix Paultre
Editor-at-Large, Microwaves & RF
Alix is Editor-at-Large for Microwaves & RF.
An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the U.S. military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications, most recently as Editor-in-Chief of Power Systems Design.
Alix currently lives in Wiesbaden, Germany.