| IP개요 |
This manuscript addresses a novel ternary content addressable memory (TCAM) based physical unclonable function (PUF). We present the results of our investigations into the reliability and uniqueness of TCAM memories in different technology nodes when used as TCAM PUF. All the simulations are based on 180nm technology with the supply voltage of 1.8V at a maximum operating frequency of 500MhZ. The Comparative analysis is also done using different technologies. Each TCAM cell memory presents a unique and unpredictable start up patterns when powered up. In order to use a TCAM as PUF in an application, the stability of its start-up patterns needs to be assured under a wide variety of conditions such as temperature and applied voltage. Furthermore the start-up patterns of different memories must be unique and contain sufficient entropy. This paper presents the results of tests that investigate these properties of different TCAM memory technology nodes. Furthermore, it proposes the construction of fuzzy extractor, which can be used in combination with tested memories for extracting secure cryptographic keys. |
