6.2 Use Cases

The ECC608-TFLXWPC is defined to specifically address the authentication needs of the WPC Qi charging market. Microchip is an authorized Manufacturing CA for the WPC. In addition to security IC’s, Microchip also offers complete power receiver and power transmitter solutions with and without authentication for the wireless charging market.

Secure TLS Connection

The ECC608-TFLXWPC allows the creation of secure TLS connections using a variety of protocols. This application is beyond the specifications of the WPC authentication requirements but it is seen as an important piece in allowing Qi transmitters to proliferate in the Qi infrastructure market.

Secure Boot

Protecting the boot image of a microcontroller or microprocessor is a concern for many vendors. By providing a mechanism to verify that the code being run is authentic and was not modified, the overall integrity of the system is maintained. The ECC608-TFLXWPC is configured to allow secure boot by storing the code digest of the system within a data slot of the device. Upon initial execution of the code, the system can regenerate the digest over the system firmware and compare it with the digest stored in the ECC608-TFLXWPC, verifying that the firmware was not tampered with. In addition, the authentication of TLS or WPC transmitters can be prevented until the secure boot occurs, based on the device configurations.

General Data Storage

Sometimes there is a need to store a small amount of additional information for a given system. The ECC608-TFLXWPC can be used for this purpose by using those data slots where data can be readily read and written. This eliminates the need to add an additional EEPROM memory device to store data.