Patent ID: 9208318
Filing Date: 2015-12-08
Classification: G06F,H04L,Y04S

Abstract:
1. A method of device integrity authentication, comprising: retrieving a list of two or more sectors for a device, each sector being associated with a respective sector value; measuring an initial integrity value of the device based on one or more of the respective sector values; updating the initial integrity value based on the other sector values of the two or more sectors; obtaining one or more intermediate measured integrity values based on the updating; storing the one or more intermediate measured integrity values; determining, using a processor, a final measured integrity value of the device from the one or more intermediate measured integrity values; comparing, using the processor, the final measured integrity value to an embedded integrity value maintained in the device; retrieving one or more of the intermediate measured integrity values in response to the final measured integrity value not matching the embedded integrity value; and facilitating, using the processor, application of a policy to the device using the final measured integrity value or the one or more intermediate measured integrity values based on the comparing; wherein each sector corresponds to a processing module of the device.