Technology Produces Unclonable Digital Fingerprints for Internet of Things Devices

摘要

Researchers have created technology that is 10 times more reliable than current methods of producing unclonable digital fingerprints that can be used to authenticate devices linked to the Internet of Things (IoT). The physically unclonable function (PUF) technology generates two unique fingerprints for each PUF. This "zero overhead" method uses the same PUF components to make both keys and does not require extra area and latency because of a design feature that also allows the PUF to be about 15 times more energy efficient than previously published versions. Each PUF unit can work in two modes. In the first mode, it creates one fingerprint, and in the other mode it gives a second fingerprint. Each one is a unique identifier. If the device fails in the first mode, it can use the second key.