
Keysight Achieves Industry-First PSA Certified Level 4 Evaluation for Silicon Labs’ SiXG301 SoC, Reinforcing Leadership in IoT Security Testing
In a landmark achievement for the Internet of Things (IoT) industry, Keysight Technologies, Inc. (NYSE: KEYS) has successfully completed the world’s first PSA Certified Level 4 security evaluation for Silicon Labs’ Series 3 Secure Vault™ on the SixG301 wireless System-on-Chip (SoC). This milestone underscores Keysight’s leadership in high-assurance device security testing and certification, while also highlighting the growing importance of robust security measures in connected devices.
As IoT adoption continues to surge across industries, so too does the sophistication of cyber threats targeting these devices. Hackers are increasingly deploying advanced tools and techniques to exploit vulnerabilities in connected platforms. To counteract these risks, certification frameworks like PSA Certified have become essential for manufacturers seeking to demonstrate their devices’ resilience against evolving threats. At the pinnacle of this framework, Level 4 represents the highest tier of security assurance, focusing on the resilience of core security components such as the Root of Trust (RoT), secure elements (SE), and other critical hardware and software features. These components play a vital role in safeguarding data, firmware, and device functionality throughout the product lifecycle.
Keysight, as an authorized PSA Certified Test Lab, conducted the rigorous Level 4 evaluation through its state-of-the-art security lab. The process involved comprehensive design reviews, detailed vulnerability analysis, and advanced attack simulations, including Side-Channel Analysis and Fault Injection. These methodologies tested the device’s ability to withstand sophisticated attacks, ensuring its readiness for real-world deployment in high-risk environments.
Initially, the goal was to achieve Level 3 certification, which already represents a significant level of security assurance. However, Keysight’s deep expertise, innovative approach, and collaborative mindset enabled Silicon Labs to surpass expectations and achieve Level 4 certification. This accomplishment not only validates the robustness of the SiXG301 SoC but also underscores Keysight’s pivotal role in helping customers bring secure, trusted technologies to market.
A Testament to Collaboration and Expertise
The journey to achieving PSA Certified Level 4 was a testament to the strong partnership between Keysight and Silicon Labs. Rohit Ravichandran, Product Manager for IoT Security at Silicon Labs, emphasized the significance of this collaboration: “This certification is a major milestone for Silicon Labs and a reflection of the strength of our partnership with Keysight. Achieving Level 4 required more than just technical readiness—it demanded a testing partner with deep expertise, flexible processes, and an unwavering commitment to security excellence. Keysight played a critical role in guiding us through the evaluation process and pushing the boundaries of what we could achieve. Their hands-on support and rigorous approach were instrumental in reaching this advanced level of assurance.”
For Silicon Labs, this certification reinforces the company’s reputation as a leader in IoT security. The Series 3 Secure Vault™ technology embedded in the SiXG301 SoC provides cutting-edge protection for sensitive data and operations, making it an ideal choice for applications in industries such as healthcare, industrial automation, and smart cities, where security is paramount.
Keysight’s Commitment to Enabling Secure Innovation
Marc Witteman, Technical Director at Keysight, highlighted the broader implications of this achievement: “This milestone reflects the culmination of our close and long-standing partnership with Silicon Labs’ engineering team. It also underscores the importance of continuous collaboration in bringing trusted technology to the market. At Keysight, we don’t just provide certification services—we empower customers with the tools, expertise, and support they need to design and deliver secure products efficiently and confidently.”
Keysight’s role extends beyond testing and certification. By offering advanced security labs, expert guidance, and innovative methodologies, the company enables manufacturers to address the complex challenges of IoT security. As the threat landscape evolves, Keysight remains at the forefront of developing solutions that help businesses stay ahead of potential risks.
The Growing Importance of High-Assurance Security
The achievement of PSA Certified Level 4 for the SiXG301 SoC comes at a critical time for the IoT industry. With billions of connected devices expected to be deployed in the coming years, ensuring their security is no longer optional—it’s imperative. High-assurance certifications like Level 4 provide manufacturers, developers, and end-users with the confidence that these devices can withstand even the most sophisticated attacks.
Moreover, this milestone sets a new benchmark for the industry. It demonstrates that achieving the highest levels of security assurance is not only possible but achievable through collaboration, innovation, and expertise. For companies like Silicon Labs, partnering with trusted testing providers like Keysight ensures that their products meet the stringent security requirements demanded by today’s digital ecosystems.
About Keysight Technologies
At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we’re delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product life cycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.



