Hsinchu, October 31st, 2025 –– PUFsecurity, an eMemory subsidiary and global leader in PUF-based security solutions, today announced that its PUF-based Root-of-Trust IP (PUFrt) has been successfully integrated into Silicon Labs’ latest Series 3 Secure Vault™ wireless SoCs, which have achieved the industry’s first PSA Certified Level 4 accreditation. This successful integration sets a new benchmark for secure wireless connectivity, positioning PUFsecurity and Silicon Labs as leaders in establishing Level 4 as the new standard for trusted connected devices.
PSA Certified Level 4: Raises the Bar for Chip Security by Design
PSA Certified Level 4 is the most rigorous level of the global PSA framework, requiring resilience against invasive physical attacks, side-channel leakage, and fault injection. Achieving this certification involves months of destructive lab testing, ensuring the silicon itself resists nation-state-class adversaries. Only a handful of products worldwide have attempted to reach this threshold. By embedding PUFrt, Silicon Labs’ Series 3 Secure Vault™ wireless SoCs are anchored with a strong hardware-based trust foundation that meets these stringent requirements.
PUFrt: Silicon-Anchored Root-of-Trust Enabling PSA Level 4 Security
PUFrt brings together essential security primitives including Physical Unclonable Function (PUF), secure OTP, and advanced anti-tamper protection. With these elements built directly into silicon, PUFrt enables silicon providers to accelerate their path to certification at the highest levels while ensuring robust device protection throughout the product lifecycle.
Key contributions of PUFrt to Silicon Labs’ Series 3 Secure Vault™ wireless SoCs include:
- Unclonable device identities, bound to the silicon using intrinsic randomness in manufacturing.
- Hardware-rooted keys generated directly from the chip’s PUF, to
- secure other confidential device specific data such as cryptographic keys, device configuration, and public key root of trust
- complement Silicon Lab’s certificate generation and provisioning.
- Tamper-resistant secure storage reinforced with best-in-class OTP for long-term protection.
- Improved manufacturability and yield by streamlining provisioning and reducing risks from post-processing steps.
These capabilities make security inseparable from the silicon itself — a requirement to withstand invasive attacks and a key factor in achieving PSA Level 4 certification.
Collaboration for Trusted Next-Generation Connected Devices, Needed Now and For the Future
This milestone underscores the capability of PUFrt to support the highest level of security assurance, delivering robust protection against invasive physical attacks for next-generation connected applications across smart cities, industrial IoT, medical devices, connected energy systems, and critical infrastructure.
For customers, SoCs that are pre-validated for security not only enable faster time-to-market but also ensures readiness for emerging global regulatory mandates. With frameworks such as Europe’s Radio Equipment Directive (RED) and Cyber Resilience Act (CRA) driving stronger security compliance requirements worldwide, achieving PSA Level 4 certification can help customers future-proof their design and confidently navigate evolving cybersecurity expectations.
“The adoption of PUFrt in Silicon Labs’ latest secure wireless platform is a significant milestone for PUFsecurity,” said Sam Chung, Vice President of PUFsecurity. “It demonstrates that our Hardware Root of Trust can meet the most demanding certification standards and enable trusted platforms for the evolving IoT landscape.”
“Daniel Cooley, CTO at Silicon Labs, added: “Achieving PSA Certified Level 4 required the strongest root-of-trust foundation. With PUFrt, we are able to deliver SoCs that provide not only connectivity and performance, but also industry-leading protection against the most advanced physical and side-channel attacks.”
About PUFsecurity
PUFsecurity is a leading provider of hardware root-of-trust technologies, specializing in security IP solutions based on Physically Unclonable Function (PUF) technology. Leveraging eMemory’s NeoPUF and OTP technologies, PUFsecurity focuses on developing and deploying native key generation and full-stack security architectures to address the challenges of the quantum era: core IP solutions include PUFpqc (Post-Quantum Cryptography), PUFcc (Crypto Coprocessor), PUFrt (Root of Trust), and PUFhsm (Hardware Security Module). PUFsecurity is currently constructing a PUF-based Security-as-a-Service ecosystem to provide protection and authentication for the next generation of connected devices.
About Silicon Labs
Silicon Labs Silicon Labs (NASDAQ: SLAB) is the leading innovator in low-power wireless connectivity, building embedded technology that connects devices and improves lives. Merging cutting-edge technology into the world’s most highly integrated SoCs, Silicon Labs provides device makers with the solutions, support, and ecosystems needed to create advanced edge connectivity applications. Headquartered in Austin, Texas, Silicon Labs has operations in over 16 countries and is the trusted partner for innovative solutions in the smart home, industrial IoT, and smart cities markets. Learn more at www.silabs.com.
熵碼科技PUFrt技術助力Silicon Labs第三代無線SoC在全球率先通過 PSA Certified Level 4 認證
【新竹，2025年10月31日】 — 力旺子公司熵碼科技（PUFsecurity）今日宣布，其以PUF（Physical Unclonable Function，物理不可複製功能）技術為基礎開發的安全信任根IP — PUFrt（PUF-based Root of Trust），成功導入Silicon Labs（芯科科技，NASDAQ：SLAB）第三代無線SoC（System-on-Chip，系統單晶片）的Series 3 Secure Vault™安全技術，協助該產品成為全球首款通過PSA Certified Level 4安全認證的SoC，樹立無線連網晶片安全層級新標竿。
PSA Certified Level 4：晶片安全最高等級的產業標竿
PSA Certified Level 4是全球PSA安全框架中最高等級的安全驗證，要求晶片具備防禦物理入侵（Invasive Attack）、側信道攻擊（Side-channel Attack）與故障注入（Fault Injection）等各項威脅的能力。要通過這項認證，晶片必須經歷長時間、嚴格且具破壞性的實驗室測試，以證明能抵擋國際頂尖等級的攻擊手法。
藉由導入PUFrt技術，Silicon Labs的Series 3 Secure Vault™ SoC建構出強韌的硬體信任基礎，成功滿足PSA Level 4對晶片設計的嚴苛要求。
PUFrt硬體信任根：推動晶片安全達成 PSA Level 4 認證
PUFrt整合了PUF、安全OTP（One-Time Programmable，一次性可編程記憶體）儲存與抗攻擊設計（Anti-tamper Design）等核心技術，將多項安全機制內建於晶片架構中。這項設計可協助晶片供應上有效通過高階安全驗證，並確保產品在全生命週期中具備完善的安全防護。
PUFrt為Silicon Labs的Secure Vault™無線SoC帶來以下關鍵價值：
- 晶片唯一識別性：每顆晶片以製程隨機特性生成獨一無二的晶片指紋。
- 硬體信任根金鑰：透過PUF產生的晶片指紋能保護機密資訊，例如加密金鑰、設備配置與公鑰信任根，並可搭配Silicon Labs的憑證生成與佈署流程。
- 高可靠安全儲存：整合OTP技術，維持長期且穩定的安全防護。
- 製程效益提升：簡化配置流程與驗證程序，降低後製步驟帶來的風險並提升良率。
這些特性讓安全機制與晶片設計緊密整合，使Secure Vault™無線SoC能有效抵禦各類實體攻擊，達成PSA Level 4的高標準。
強化晶片防護，提升安全連網新層級
此項合作成果展現了 PUFrt 在支援晶片達成最高安全等級防護上的實力，為新一代智慧城市、工業物聯網、醫療裝置、能源系統及關鍵基礎設施奠定更堅實的安全基礎。
面對全球資安標準持續提升與連網應用快速擴張的趨勢，採用經安全驗證的 SoC 不僅能縮短產品上市時程，也有助因應歐盟RED（Radio Equipment Directive）與 CRA（Cyber Resilience Act）等國際法規，讓產品設計更早符合全球市場的安全合規趨勢。
熵碼科技副總經理鍾承霖表示：「將PUFrt導入至Silicon Labs最新無線SoC系列，是熵碼科技的重要里程碑。這證明我們的硬體信任根架構能滿足最嚴格的安全標準，並為物聯網時代打造可信賴的平台。」Silicon Labs技術長 Daniel Cooley 也指出：「要達成PSA Certified Level 4，需要最堅實的信任基礎。透過整合PUFrt技術，我們為客戶構築高效且安全的SoC，抵禦最先進的實體與側信道攻擊，為物連網應用帶來最高等級的防護。」
關於熵碼科技
熵碼科技為全球領先的硬體信任基礎技術提供者，專注於以PUF技術為核心的安全IP解決方案。憑藉母公司力旺電子的NeoPUF與OTP技術，熵碼聚焦於 NeoPUF 原生密鑰技術與全棧安全架構的開發與部署，致力於協助全球晶片與系統設計者迎接量子時代挑戰，打造真正可持續的資安防線，核心產品包括PUFPQC(Post-Quantum Cryptography)、PUFcc(Crypto Coprocessor)、PUFrt(Root of Trust)、PUFhsm(Hardware Security Module)等IP解決方案，布局打造PUF-based Security-as-a-Service生態系，為新一代連網設備提供保護與認證機制。
關於Silicon Labs
Silicon Labs (亦稱「芯科科技」，NASDAQ：SLAB)是低功耗無線連接領域的創新領導者，致力於打造以連接裝置改善生活的嵌入式技術。 Silicon Labs 將尖端技術融入全球整合度最高的系統單晶片( SoC)中，為裝置製造商提供所需的解決方案、支援和生態系統，以建構先進邊緣連接應用。 Silicon Labs 總部位於德州奧斯汀，營運範圍遍及 16 個國家，是智慧家庭、工業物聯網和智慧城市市場中值得信任的創新方案合作夥伴。了解更多請瀏覽www.silabs.com