Hash Based Approaches for RFID Authentication

RFID (Radio Frequency Identification) is a technology for automated identification of objects. RFID systems will become pervasive in one's daily lives. RFID is extensively used in a number of applications like libraries, tool collect, automated parking, and supply chain management. RFID system has great potential for business automation. The long-term goal of consumer product manufacturing organizations is to integrate RFID system on the retail level. For over twenty years, consumer items have been identified with optical barcodes. RFID system has replaced the old barcodes identification scheme because RFID has several advantages over optical barcode systems. Like, RFID tag data can be read automatically without line of sight at a rate of thousands tags per second from a distance of several meters. This RFID feature is very useful for automation purposes. Unlike barcodes, each RFID tag has unique identification. Furthermore, RFID tag can also support built-in security mechanisms like encryption, access control, etc. The RFID system consists of following three components including the RFID Tag, which is a very small and low-cost device which consists of a microchip with limited functionality and data storage. Secondly, a RFID Reader which has an antenna and microchip for wireless communication, and lastly a Back-end Database which has a lot of information relevant to tags and associates records with tag data collected by the reader.