Patent ID: 10505931

Abstract:
A method is provided for authenticating an IC device. The method includes provisioning an integrated circuit (IC) device with a unique identification number (UID). The IC device is configured to calculate a device-specific key (DSK) using the UID. The UID is used with a secure application separate from the IC device to calculate the DSK. The DSK calculated by the IC device is the same as the DSK calculated by the secure application. The UID and the DSK calculated by the secure application is provided to a provider of an online service. The provider of the online service is enabled to authenticate the IC device using the UID and the DSK calculated with the secure application in response to the IC device contacting the online service. The provider may authenticate the device using a standard cryptographic challenge-response protocol. If the IC device has knowledge of a particular DSK, then the IC device is a legitimate authorized device.