Interconnect-Based PUF With Signature Uniqueness Enhancement.

Physical unclonable function (PUF) is an important security primitive, which generates unique signatures as fingerprints for each chip. This article first presents a novel interconnect-based PUF (iPUF). The proposed iPUF utilizes the manufacturing process variability of interconnect lines to introduce crosstalk variations for generating PUF signatures. By leveraging the variations of passive inter...