APPLYING CIRCUIT DELAY-BASED PHYSICALLY UNCLONABLE FUNCTIONS (PUFS) FOR MASKING OPERATION OF MEMORY-BASED PUFS TO RESIST INVASIVE AND CLONE ATTACKS

摘要

One feature is to create a unique identifier for an electronic device by combining static random access memory (SRAM) PUFs and circuit delay based PUFs (e.g., ring oscillator (RO) PUFs, arbiter PUFs, etc.). It's about things. Circuit delay based PUFs can be used to conceal the challenge to the SRAM PUFs and/or to conceal the responses from the SRAM PUF, thereby preventing an attacker from being able to duplicate the response of the memory device.