基于Arbiter的PUF的改进

ipher chip is an important way to protect the information security. Therefore, to protect the cipher chip security is becoming more and more important. Physical unclonable function (PUF) is a new effective method for the physical security of cipher chip. We first recount the arbiter-based PUF which was proposed by Lim et al. and uses the deviation for the PUF production mechanism because of the chip manufacturing technology. We also propose an improvement method for the physical structure of arbiter-based PUF by adding delay module in the path, and prove the superiority of this method in security protection by experiment with field programmable gate array (FPGA).