Enabling Superior Security When Adding Matter to Home Automation Equipment

22 February 2024

The Infineon OPTIGA Trust M MTR is a secure element for use in Matter-based smart home hardware. This presents engineers with a tamper-resistant controller that is simple to integrate into engineers’ designs.

Featuring a 16-bit embedded processing resource, it can carry out a variety of security-related functions and is applicable with any system microprocessor or microcontroller platform, so maximum flexibility is provided. With this solution, Infineon has taken a novel approach which means that device attestation certificates (DACs), which will comprise both the product IDs (PIDs) and the vendor IDs (VIDs), do not need to be allocated when the ICs are originally sourced - but can instead be added during OEM production work. An OEM just needs to download the DACs when they are required. Consequently, they have more flexibility when it comes to creating multiple end product variants.

“When we designed the Matter protocol in the Connectivity Standards Alliance, we were committed to building in strong security,” states Steve Hanna, Distinguished Engineer at Infineon. “That’s why Matter brings new security features to the smart home, some of which were challenging for IoT product designers. Infineon’s OPTIGA Trust M MTR addresses those challenges head-on so that now it can be even easier to build a Matter product.”

Using the OPTIGA Trust M MTR Matter-certified security ICs, elevated levels of data protection can be assured. Each has a built-in crypto accelerator with AES-256 and HMAC/SHA512 capabilities. Potential applications within the domestic environment will include access points, lighting equipment, climate control systems, etc. The ICs adhere to the CC EAL 6+ evaluation assurance standard. An operating temperature range from -25°C to 85°C is supported.

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