Wireless RFID system authentication method and apparatus

Abstract

The embodiment of the invention discloses an authentication method in wireless radio frequency recognition RFID for bidirectional authentication between a label, a reader and a database. The embodiment of the invention also discloses a system and apparatus for authentication in RFID, according to the method and apparatus provided by the invention embodiment, the ID can be divided on the transferring mode of the label ID, and the ciphering and the transmitting can be performed respectively, the mode enables the ID information not to be transmitted by the clear text form, the information can be transmitted to the reader by the label at the anonymous mode, so that the information of the label ID can be protected. In addition, the embodiment of the invention also provides a label enquiring type communication mode, according to the method for increasing and storing temporary cipher key on the network side and transmitting the request for updating the cipher key before the database updates the cipher key forward label to affirm whether the cipher key is updated or not, the reliability for updating the cipher key between the label and the network side synchronously can be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an authentication method and equipment in RFID (Radio Frequency Identification, radio frequency identification). Background technique [0002] RFID technology is a non-contact automatic identification technology that emerged in the 1960s and 1970s. Since RFID technology has the characteristics of multi-target identification and non-contact identification, it has been widely used in manufacturing, commerce, military, daily life and other fields, and has shown huge development potential and application space. It is considered to be the most developed in the 21st century. One of the promising technologies. [0003] The structure of the RFID system is as follows figure 1 As shown, it generally consists of three parts: tags, readers and databases. [0004] In the RFID system, the database can be a database system running on any hardware platform, which can be selecte...

AI Technical Summary

Problems solved by technology

Therefore, the protocol cannot resist retransmission attacks

[0019] (2) The label calculation load is too large

Therefore, if the attacker attacks at this time (for example, the attacker can forge a fake message, or simply implement interference so that the tag cannot receive the message), there will be a data out-of-sync problem between the database and the tag

This means that legitimate tags will not be authenticated in future sessions

That said, there is a potential security risk of database synchronization

[0031] (2) The label calculation load is too large

[0032] The problem is the same as the randomized Hash-Lock protocol technical solution, which is caused by the limited processing capacity of the tag, so I won’t repeat it here

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