IoT Security Progress: Silicon Labs Secures Top PSA Level 4 Certification, Marking Industry First
The Silicon Labs' Series 3 Secure Vault security subsystem, featured on the SiXG301 System-on-Chip (SoC), has achieved the world's first PSA Level 4 certification. This accolade signifies the highest security assurance level against sophisticated physical attacks, setting a new standard in Internet of Things (IoT) security.
The SiXG301 SoC boasts a range of key features designed to enhance security, performance, and compatibility. At its core is an advanced multi-core architecture, consisting of an ARM Cortex-M33 running up to 150 MHz for applications, alongside dedicated cores for radio and security engine. This setup enables high performance and efficient parallel processing.
The SoC also offers large memory options, with up to 4MB Flash and 512kB RAM, supporting complex applications, including concurrent running of Zigbee and Matter protocols over Thread. Moreover, it is built on a 22 nm process node, ensuring low-power wireless operation combined with high security standards.
To validate its comprehensive protection, Silicon Labs collaborated with Keysight Technologies for robust testing against modern attacks, including side-channel analysis and fault injection. The SiXG301 SoC is designed for line-powered IoT devices, making it ideal for smart home applications and other connected environments.
In addition to its security features, the SiXG301 SoC supports over-the-air firmware/software updates and real-time monitoring to maintain security protections against evolving threats over the device's lifetime. It also features help for device manufacturers to comply with regulations such as the EU's Radio Equipment Directive (RED), effective August 2025.
The benefits of the SiXG301 SoC are far-reaching. With its PSA Level 4 certification, it delivers unmatched security assurance in real-world adversarial conditions. By being engineered to remain secure against threats not yet common, it provides future-proofing, protecting devices for more than a decade in the field.
The SiXG301 SoC also simplifies product development by integrating multiprotocol support and regulatory compliance, reducing complexity for manufacturers. Furthermore, it embeds security as foundational to device operation, enabling safer connected environments and accelerating IoT adoption.
In summary, the Series 3 Secure Vault on the SiXG301 SoC sets a new standard in IoT security by combining high-performance hardware, advanced security features validated to withstand next-generation physical attacks, and a design philosophy centered on long-term, evolving protection.
For those interested in learning more about integrating RED-ready security into their products, Silicon Labs is offering a webinar, "Stay Ahead of Global IoT Security Regulations with Silicon Labs." Register now to stay ahead of the curve in IoT security.
[1] Silicon Labs. (n.d.). SiXG301 SoC. Retrieved from https://www.silabs.com/products/wireless/zigbee/zigbee-3-0/sixg301 [2] Silicon Labs. (n.d.). Security Overview. Retrieved from https://www.silabs.com/security [3] Silicon Labs. (n.d.). CTO Blog. Retrieved from https://www.silabs.com/blogs/cto-blog [4] Silicon Labs. (n.d.). Custom Part Manufacturing Service (CPMS). Retrieved from https://www.silabs.com/development-resources/silicon-design-resources/custom-part-manufacturing-service-cpms [5] Silicon Labs. (n.d.). Matter Developer Journey. Retrieved from https://www.silabs.com/development-resources/wireless/zigbee/zigbee-3-0/matter-developer-journey
- The SiXG301 System-on-Chip (SoC), with its PSA Level 4 certification, promises a new standard in IoT security by providing unparalleled data protection, rooted in technology engineered to stay secure against future, unforeseen threats.
- As the world's first PSA Level 4 certified security subsystem, the Series 3 Secure Vault featured on the SiXG301 SoC offers businesses beefed-up security for their IoT-based operations, providing a more robust defense against news of cyber threats.
- In the realm of technology, especially data-and-cloud-computing, the advent of IoT devices featuring advanced security systems like the SiXG301 SoC is shaping opinions on how future networks should be fortified, ensuring a more resilient digital landscape.
