Winbond Partners with Nuvoton, Qinglianyun to Release Fully Integrated Reference Design for OTA Firmware Updating

By Perry Cohen

Associate Editor

Embedded Computing Design

March 24, 2021

News

Winbond Partners with Nuvoton, Qinglianyun to Release Fully Integrated Reference Design for OTA Firmware Updating
(Image courtesy of Pixabay)

Winbond, in partnership with Nuvoton and Qinglianyun, released a fully integrated reference design for secure OTA firmware updating of IoT devices.

Per a company press release, the reference design is based on the Nuvoton M2351SF IoT Security MCU, a multi-chip module consisting of the M2351 IoT Security microcontroller and Winbond’s W77Q TrustME® secure Flash memory IC. The M2351 microcontroller is based on the Arm Cortex®-M23 secure processor core with TrustZone technology.

In order to provide a trusted execution environment (TEE) for secure OTA firmware updating, the device operates on Qinglianyun’s TinyTEE secure software stack in TrustZone-protected hardware.

Further, the software connects to Qinglianyun’s secure cloud service, providing a suite of IoT device management capabilities including device authentication, secure storage, encryption engines, and a random number generator, all of which comply with the Global Platform TEE standard interface.

Aside from secure storage, the solution also provides the following security features:

  • Secure boot and root-of-trust

  • Authenticated and encrypted data transfer between the Flash device and the host

  • Secure Execute-in-Place (XiP) of boot and application code

  • System resilience, supporting the key security functions of protection, detection and recovery

For more information, visit www.winbond.com.

Perry Cohen, associate editor for Embedded Computing Design, is responsible for web content editing and creation, podcast production, and social media efforts. Perry has been published on both local and national news platforms including KTAR.com (Phoenix), ArizonaSports.com (Phoenix), AZFamily.com, Cronkite News, and MLB/MiLB among others. Perry received a BA in Journalism from the Walter Cronkite School of Journalism and Mass Communications at Arizona State university.

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