RFID security authentication protocol based on the dynamic refresh ID

Security of the low-cost RFID system protocol was not high.A security mutual authentication protocol DRHA was proposed which based on unidirectional Hash function,pseudo-random number generator and dynamic refersh ID.DRHA solves the problem of synchronous of server and labels through saving each label of the new and old identify groups of server.Security analysis showed that the protocol can resist common attacks,and has high safety and practicality.