Category: Internet of Things Product of the Year
The W77Q Secure Flash memory is a revolutionary, drop-in replacement for existing Flash devices, supporting secure storage, secure boot, root-of-trust and resilience, and providing strong protection for operations over-the-air updates and device authentication.
The W77Q ensures robust, end-to-end security in IoT devices by enabling:
Secure code updates, including over-the-air updates, via an end-to-end secure channel between an updated authority and the W77Q even when the host processor or SoC has been compromised.
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
The W77Q and W75F are designed to cover the whole range of assurance levels mandated by the European Cybersecurity Act and other regulations. The W77Q is intended for use in consumer and industrial devices that need the security functions required for compliance with the Substantial and Basic assurance levels specified in the Act. The W77Q supports conformance to the Common Criteria EAL2, SESIP and Arm® Platform Security Architecture (PSA) security specifications.
The W75F is certified for Common Criteria EAL5+, which means it is suitable for payment and communications devices and applications requiring the High assurance levels specified in the Cybersecurity Act.
Hung-Wei Chen, Marketing Director for the Secure Flash product line at Winbond, said: ‘The W77Q is a game-changer product, a follow-on to the existing W75F which offers the industry’s strongest security in an SPI Flash memory, suitable for the most sensitive financial and communications applications. Now, with the W77Q, Winbond is meeting the need of customers to protect and authenticate any smart, connected device used at home or in the factory.
The W77Q offers the secure storage and data-transfer capabilities needed to protect IoT devices and user data. Its main security features include:
Hardware-based Root-of-Trust engine
TCG DICE-like device attestation
Cryptographically secured Write protection
Secure code updates with roll-back protection
Secure boot from Flash
Authenticated watchdog timer
End-to-end encrypted and authenticated data transfer.
Replay Protection Monotonic Counter (RPMC)
Fail-safe (in-field) configuration updates
Secure symmetric key management
Secure unique device ID
The W77Q also provides the high speed, long data retention and strong data integrity of Winbond’s standard SPI Flash memory ICs. Its specifications include:
66MHz operating frequency at Double Transfer Rate/133MHz at Single Transfer Rate
20 years’ data retention
100,000 Program/Erase cycles
Wide operating temperature range of -40Â°C to 105Â°C
The W75F will be demonstrated in an Arm PSA security application running on the Arm TF-M operating system.