Using the PSA Certified IoT Security Framework

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PSA Certified is providing a common language for the industry, allowing the entire value chain to work to the same requirements. The PSA Certified framework offers a standardized approach from initial IoT security design and implementation to security evaluation. It also provides a comprehensive set of free resources to help you build-in best practice security from the beginning of product development. Built by industry experts, it’s been adopted by a rapidly growing ecosystem of silicon vendors, system software providers and device manufacturers. 

A Simple Four Step Process

The PSA Certified framework breaks down security design and implementation into a simple four-step process, reducing complexities and ensuring you build-in right-size security without excessive costs or increased time-to-market.

  • Analyze the threats that have the potential to compromise your device and generate a set of security requirements based on these risks. PSA Certified provides free, editable examples to help you develop a unique threat model for your product.

  • Architect: Use your unique security requirements to identify and select components and specifications that allow you to architect the right level of security for your product.

  • Implement: Implement the trusted components and firmware, making use of high-level APIs to build-in security and create an interface to the hardware Root of Trust (RoT).

  • Certify: Following independent security evaluation, certify your device, system software platform or silicon and demonstrate your commitment to security best practice.

Analyze, Architect, Implement, Certify

A Layered Approach to Security

PSA Certified takes a layered approach to IoT security offering certification for all components of a connected device, ensuring that each element has built-in security. Certifications are consumable meaning device manufacturers can leverage expertise from the value chain and build on certified silicon and software. PSA Certified status can also be reused with other security frameworks and evaluation schemes. For example device manufacturers can reuse their certificates to show mappings to regulations and silicon vendors can use their certificates to demonstrate they have a secure Root of Trust suitable for other certification schemes.

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Offering Multiple Levels of Silicon Security

PSA Certified provides the following levels of silicon security robustness to ensure right size security can be built into products:

  • PSA Certified Level 1 is available for silicon, system software and endpoint device manufacturers
  • PSA Certified Level 2 evaluates the silicon RoT against scalable software attacks
  • PSA Certified Level 2+SE includes a Secure Enclave or Secure Element that can protect assets against substantial physical and software attacks
  • PSA Certified Level 3 evaluate the silicon Root of Trust against substantial physical and software attacks
  • PSA Certified Level 3+SE includes a Secure Enclave or Secure Element that can protect assets against high level of physical and software attacks
  • PSA Certified Level 4 iSE/SE is for chip vendors who use an integrated Secure Enclave or external Secure Element that provides a high level of robustness to physical and software attacks

For Silicon
Vendors

For silicon vendors, PSA Certified offers multi-level certification with increasing robustness focused on the silicon’s PSA Root of Trust.

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For Software Providers

System software providers can showcase critical security principles with PSA Certified Level 1 and leverage security functions with APIs.

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For Device Manufacturers

Device manufacturers can demonstrate best practice security in endpoint devices and development platforms with PSA Certified Level 1.

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Begin your IoT Security Journey Today

PSA Certified has been adopted by world-leading companies all creating a partnership that underpins connected devices and provides real solutions to build trust in the Internet of Things.

Getting Certified

Join the Ecosystem That Is Revolutionizing Embedded Security

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Companies with PSA Certified Products

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