APPLYING CIRCUIT DELAY-BASED PHYSICALLY UNCLONABLE FUNCTIONS (PUFS) FOR MASKING OPERATION OF MEMORY-BASED PUFS TO RESIST INVASIVE AND CLONE ATTACKS

摘要

An authentication device is provided that authenticates an electronic device based on the responses from distinct types of physically unclonable functions. The authentication device receives a device identifier associated with the electronic device. It then sends one or more challenges to the electronic device. In response, the authentication device receives one or more responses from the electronic device, the one or more responses including characteristic information generated from two or more distinct types of physically unclonable functions in the electronic device.

主权项

1. A method operational by an authentication device, comprising:
receiving a device identifier associated with an electronic device; sending one or more challenges to the electronic device; receiving one or more responses from the electronic device, the one or more responses including characteristic information generated from two or more distinct types of physically unclonable functions in the electronic device; identifying pre-stored responses specific to the electronic device using the electronic device identifier; and authenticating the electronic device by comparing the pre-stored responses and the received one or more responses for the electronic device.