Secure storage subsystem by Microchip enables Qi 1.3 wireless charging
The Wireless Power Consortium (WPC) has released the Qi 1.3 specification with the extended power profile, driving demand for high security silicon authentication devices for full-service support. The Qi 1.3 specification mandates the addition of a secure storage subsystem with secure key provisioning including X.509 certificates to cryptographically verify the source and quality of the certified power transmitter. In response, Microchip Technology has announced the industrial grade TrustFLEX ECC608 and the automotive grade Trust Anchor TA100 combined with Microchip secure key provisioning services for Qi 1.3 power transmitters. The combination is an all-in-one secure storage subsystem that includes key provisioning for consumer and automotive systems.
When a receiver, e.g. in a cell phone is placed on a Qi 1.3 power transmitter, it may initially accept a 5W charge or no charge at all. Following an X.509 based ECC authentication to prove the charger is an approved, “do no harm” device, the phone will accept a 15W charge. This process significantly reduces charging time, added Microchip.
Microchip is now a WPC licensed manufacturing Certificate Authority (CA), not only offering pre-configured secure storage subsystems that reduce complexity and development time, but also lowering the technical barrier of entry by handling the WPC root certificate authority. Microchip provides a complete certified reference design including application microcontroller, Qi 1.3 software stack, secure storage subsystems with supporting crypto library along with provisioning services for both automotive and consumer applications.
“Our WPC secure storage subsystem solutions demonstrate Microchip’s continuous commitment to facilitating high volume deployment of state-of-the-art security architectures within embedded systems” said Nuri Dagdeviren, vice president of the security products business unit at Microchip Technology.
The Microchip ECC608 TrustFLEX is supported by the CryptoAuth Trust Platform Development Kit (DM320118). The TA100 will require the TA100 8-pin SOIC Socket Board (AC164166) or TA100 24-VQFN Socket Board (EV39Y17A) to plug into the CryptoAuth Trust platform development kit.
Additionally, Microchip offers the Trust Platform design suite software development tool for secure storage subsystems and a certified WPC Qi1.3 reference design.
Both the ECC608-TFLXWPCS and the ECC608-TFLXWPCU are available now. The TA100 is available now for SOIC8 and VQFN24.
