RFID is one of the most protuberant systems in the field of ubiquitous computing. Since RFID tags have limited computation\ncapabilities, numerous ultralightweight authentication protocols have been proposed to provide privacy and security. However all\nthe previously proposed ultralightweight mutual authentication protocols have some security apprehensions and are vulnerable\nto various desynchronization and full disclosure attacks. This paper proposes a new ultralightweight mutual authentication\nprotocol to provide robust confidentiality, integrity, and authentication (RCIA) in a cost effective manner. RCIA introduces\na new ultralightweight primitive recursive hash, which efficiently detects the message tempering and also avoids all possible\ndesynchronization attacks. RCIAinvolves only bitwise operations such asXOR,AND, left rotation, and recursive hash. Performance\nevaluation illustrates that RCIA requires less resources on tag in terms of on-chipmemory, communication cost, and computational\noperations.
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