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PSA Certified
[edit]PSA Certified, previously known as Platform Security Architecture, is an architecture-agnostic security framework and evaluation scheme. It is intended to help secure Internet of Things (IoT) devices built on system-on-a-chip (SoC) processors.[1] Its introduced was to increase security where a full [trusted execution environment]] is too large or complex.[2]
The architecture was introduced by Arm Holdings in 2017 at the annual TechCon event.[3][4] Although the scheme is architecture agnostic, it was first implemented on Arm Cortex-M processor cores intended for microcontroller use. PSA Certified includes freely available threat models and security analyses that demonstrate the process for deciding on security features in common IoT products.[5] It also provides freely downloadable application programming interface (API) packages, architectural specifications, open-source firmware implementations, and related test suites.[6]
Following the development of the architecture security framework in 2017, the PSA Certified assurance scheme launched two years later at Embedded World in 2019.[7] PSA Certified offers a multi-level security evaluation scheme for chip vendors, OS providers and IoT device makers.[8] The Embedded World presentation introduced chip vendors to Level 1 Certification. A draft of Level 2 protection was presented at the same time.[9] Level 2 certification became a useable standard in February 2020.[10]
The certification was created by PSA Joint Stakeholders to enable a security-by-design approach for a diverse set of IoT products. PSA Certified specifications are implementation and architecture agnostic, as a result they can be applied to any chip, software or device.[11][9] The certification also removes industry fragmentation for IoT product manufacturers and developers.[12]
- ^ Osborne, Charlie. "ARM announces PSA security architecture for IoT devices". ZDNet.
- ^ Wong, William G. (October 25, 2017). "Arm's Platform Security Architecture Targets Cortex-M". Electronic Design.
- ^ Wong, William. "ARM's Platform Security Architecture Targets Cortex-M". Electronic Design.
- ^ Hoffenberg, Steve. "ARM: Security Isn't Just a Technological Imperative, It's a Social Responsibility". VDC Research.
- ^ ARMasu, Lucian. "ARM Reveals More Details About Its IoT Platform Security Architecture". Tom's Hardware.
- ^ Williams, Chris. "ARM PSA IoT API? BRB... Toolbox of tech to secure net-connected kit opens up some more". The Register.
- ^ Hayes, Caroline (February 25, 2019). "Embedded World: Arm introduces fourth security element to PSA". Electronics Weekly.
- ^ "PSA Certified: building trust in IoT". PSA Certified.
- ^ a b "PSA Certified–building trust, building value". EE Times. March 4, 2019.
- ^ "The $6trn importance of security standards and regulation in the IoT era". IoT Now. March 16, 2020.
- ^ McGregor, Jim (March 4, 2019). "Arm Introduces Security Certification Testing For IoT". Forbes.
- ^ Speed, Richard (February 26, 2019). "Azure IoT heads spacewards to maintain connectivity at the edge, courtesy of Inmarsat". TheRegister.