Rotating Magnetic Measurements of Physical Unclonable Functions

摘要

A rotating magnetic physical unclonable function (PUF) is disclosed. Rotating the PUF enables robust low cost PUF readers. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other systems and methods are disclosed.

主权项

1. A system comprising:
a body; a substrate mounted to the body, configured to rotate about a first axis, and containing a plurality of magnetic particles; and a non-volatile memory device mounted to the body and containing first field data corresponding to a first magnetic field generated by the magnetic particles, the first magnetic field is located along a first circular path centered on the first axis.