A new lightweight RFID mutual authentication protocol based on CRC code

Abstract

A new lightweight RFID mutual authentication protocol which the security keys updated dynamically is presented by using cyclic redundancy check code (CRC code) operations and some simple logic operations. GNY logic proof and security analysis show that the protocol not only achieve the mutual authentication requirements effectively between the readers and the tags, but also prevent many security privacy problems such as eavesdropping attack, replay attack, replication attack, the problem of tag tracking on the basis of without increasing computation and communication traffic of the RFID system. Especially, the new protocol meets the EPC Class1 Gen2 standard, compared with the same safety degree of other existing protocols, the new protocol is low complexity in the aspect of hardware implementation which consumes only 18.75% of the reserved space in terms of label storage and it is suitable for low-cost RFID system. Hence, the new protocol can realise the combination of high security and low tag cost.