Editing ARM architecture family (section)

==PSA Certified==
[[PSA Certified]], formerly named 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.<ref>{{cite web |last1=Osborne |first1=Charlie |title=ARM announces PSA security architecture for IoT devices |url=https://www.zdnet.com/article/arm-announces-security-architecture-for-iot-devices/ |publisher=ZDNet}}</ref> It was introduced to increase security where a full [[trusted execution environment]] is too large or complex.<ref name="electronicdesign"/>

The architecture was introduced by [[Arm Holdings|Arm]] in 2017 at the annual [[ARM DevSummit|TechCon]] event.<ref name="electronicdesign">{{cite web |last1=Wong |first1=William |title=ARM's Platform Security Architecture Targets Cortex-M |url=https://www.electronicdesign.com/industrial-automation/arm-s-platform-security-architecture-targets-cortex-m |website=Electronic Design |date=Oct 25, 2017 |url-status=live |archive-url=https://web.archive.org/web/20190508142933/https://www.electronicdesign.com/industrial-automation/arm-s-platform-security-architecture-targets-cortex-m |archive-date= May 8, 2019 }}</ref><ref>{{cite web |last1=Hoffenberg |first1=Steve |title=ARM: Security Isn't Just a Technological Imperative, It's a Social Responsibility |url=https://www.vdcresearch.com/News-events/iot-blog/ARM-Security-Isnt-Just-a-Technological-Imperative-Its-a-Social-Responsibility.html |website=VDC Research |date=2017-10-31 |url-status=live |archive-url=https://web.archive.org/web/20230928112955/https://www.vdcresearch.com/News-events/iot-blog/Arm-Security-Isnt-Just-a-Technological-Imperative-Its-a-Social-Responsibility.html |archive-date= Sep 28, 2023 }}</ref> 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.<ref>{{cite web |last1=Armasu |first1=Lucian |title=ARM Reveals More Details About Its IoT Platform Security Architecture |url=https://www.tomshardware.com/news/arm-iot-platform-security-architecture,36564.html |date=22 February 2018 |website=Tom's Hardware}}</ref> It also provides freely downloadable application programming interface (API) packages, architectural specifications, open-source firmware implementations, and related test suites.<ref>{{cite web |last1=Williams |first1=Chris |title=ARM PSA IoT API? BRB... Toolbox of tech to secure net-connected kit opens up some more |url=https://www.theregister.co.uk/2018/10/17/arm_psa_iot/ |website=The Register}}</ref>

Following the development of the architecture security framework in 2017, the [[PSA Certified]] assurance scheme launched two years later at Embedded World in 2019.<ref name=electronicsweekly>{{cite web |last1=Hayes |first1=Caroline |title=Embedded World: Arm introduces fourth security element to PSA |url=https://www.electronicsweekly.com/market-sectors/internet-of-things/arm-introduces-fourth-security-element-psa-2019-02/ |publisher=[[Electronics Weekly]] |date=February 25, 2019}}</ref> PSA Certified offers a multi-level security evaluation scheme for chip vendors, OS providers and IoT device makers.<ref>{{cite web |url=https://www.psacertified.org/ |title=PSA Certified: building trust in IoT |website=PSA Certified}}</ref> The Embedded World presentation introduced chip vendors to Level 1 Certification. A draft of Level 2 protection was presented at the same time.<ref name=eetimes>{{cite web |title=PSA Certified–building trust, building value |url=https://www.eetimes.com/psa-certified-building-trust-building-value/ |publisher=[[EE Times]] |date=March 4, 2019}}</ref> Level 2 certification became a usable standard in February 2020.<ref>{{cite web |title=The $6trn importance of security standards and regulation in the IoT era |url=https://www.iot-now.com/2020/03/16/101805-6trn-importance-security-standards-regulation-iot-era/ |publisher=IoT Now |date=March 16, 2020}}</ref>

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.<ref name=forbes>{{cite web |last1=McGregor |first1=Jim |title=Arm Introduces Security Certification Testing For IoT |url=https://www.forbes.com/sites/tiriasresearch/2019/03/04/arm-introduces-security-certification-testing-for-iot/#7c4aa91d38eb |work=[[Forbes]] |date=March 4, 2019}}</ref><ref name=eetimes/> The certification also removes industry fragmentation for [[Internet of Things|IoT product]] manufacturers and developers.<ref>{{cite web |last1=Speed |first1=Richard |title=Azure IoT heads spaceward to maintain connectivity at the edge, courtesy of Inmarsat |url=https://www.theregister.co.uk/2019/02/25/azure_iot_takes_to_space/ |publisher=[[TheRegister]] |date=February 26, 2019}}</ref>