Ubiquitous Internet-of-Things (IoT) platforms require cryptographic authentication protocols to secure communications among devices or between a device and cloud. These ultra-low power platforms require unconventional authentication mechanisms to enable secure communication. However, the tight area and energy constraints of IoT platforms prevent the use of traditional cryptographic protocols with a stored key, which are in any case vulnerable to probing and side channel attacks such as photon emission attacks. Physically unclonable function circuits (PUFs) provide a solution to enable secure communication. However, current PUFs have been shown to be vulnerable to machine learning attacks due to the linearity of response bits to an input challenge.
USPTO Backgrounds
USPTO Backgrounds