Injection-Molded Physical Unclonable Function

摘要

A physical unclonable function formed by an injection molding machine is disclosed. A highly random distribution of magnetic particles is created by magnetizing magnetizable particles before feeding the particles into the injection molding machine due to turbulence within the injection molding machine. Plastic is also fed into the injection molding machine to suspend the particles. Other devices and processes are disclosed.

主权项

1. A method of manufacturing a physical unclonable function (PUF) comprising:
obtaining feed material containing plastic and between ten and twenty percent, inclusive, by weight magnetizable flakes that are not magnetized; then magnetizing the flakes; then feeding the feed material into an injection molding machine; and then forming the feed material into an injection-molded PUF.