| With the advancement of 5th generation mobile networks technology for ultra-reliable low latency communications and massive machine type communications scenarios,the number of Internet of Things(Io T)terminals will grow explosively.Due to the large number of Io T terminal equipment’s manufacturers,different software and hardware performances and wide geographical distribution,the information security has become an important issue.Consequently,gives rise to the development of a new technology that is Physical Unclonable Function(PUF).It is an emerging lightweight hardware security primitive that exploited the process variations in the manufacturing process of integrated circuits and amplifies such internal random differences to generate a chip’s unique response.Due to its low power consumption and tamper resistance,it has broad application prospects in device authentication,intellectual property protection,and digital rights management.The research directions of physical unclonable functions mainly divided into four directions: new structure,error correction algorithm,security and the new applications.This thesis focuses on the study of the new structure of physical unclonable functions thereby first discusses the basic principles of physical unclonable functions and their classification with respect to basic structures,and then analyzes the deficiencies of classical physical unclonable function structures.Secondly,the existing structures were improved for three different aspects ranging from hardware utilization,resistance to machine learning modeling attacks to multi-purpose application such as Multi-Incentive Delay-based PUF(MID-PUF),Substitution-Box Arbiter PUF(SB-APUF)based on logical obfuscation and Versatile PUF combining physical unclonable function and true random number generator.Finally,the uniqueness and reliability performance tests of each proposed PUF structure were given,and detailed comparison analysis with several PUF structures is provided.The results conclude that all the proposed PUF structures have achieved the design improvement as well as high application value. |