An Analysis of Authentication for Passive RFID Tags.
Gregory S. Smith, Marijke Coetzee · Information Security for South Africa · 2009
RFID (Radio Frequency Identification) tags have become pervasive for identifying objects, people and pets, automated payment and theftdeterrents. However, assurance of tag identity has not been built into the RFID environment. Privacy by means of encryption can prevent the data from being human readable but cannot stop a clone being created. This paper considers recent approaches that have been proposed to breach this gap. These include PUF’s (Physically Unclonable Functions), cryptography, digital signatures and radio fingerprints. This paper contributes a critical analysis of current approaches in order to identify requirements for RFID tag authentication, focusing on passive RFID tags used for product authentication.