Research And Design Of The RFID Authentication Protocol Based On Anti-collision

RFID technology uses radio frequency signals through the alternating magnetic and electromagnetic fields to achieve non-contact transmission of information to the automatic identification purposes of the communication technology. Because of its technology with no contact, quick operation, strong anti-interference and capably identify the high-speed moving objects etc., it has been the rapid development and has been widely used. However, with RFID technology widely used, it arises during the collision and security problems gradually apparent, and causes the community's attention in applications.Among them, readers and tags mutual authentication protocol and anti-collision algorithm is very important. Authentication protocol is mainly the two sides agreed in advance good communication rules, as long as the communication in accordance with this rule, we can guarantee the normal communication of information, but readers and tags in their work area collision, signal interference or leakage and other problems, making System can't communicate properly. Therefore need to adopt certain policies or security measures to avoid occurrence of the phenomenon in their work area tag and reader were able to correctly identify the open. So for the anti-collision algorithm for RFID technology and secure authentication protocol of two key technologies have emerged.This paper discusses the key technologies of RFID and study in detail, its anti-collision algorithms and secure authentication protocol analysis and comparison of their advantages and disadvantages, propose a safety certification with anti-collision protocol. The agreement with the anti-collision algorithm is integrated with the encryption function algorithm, the use of anti-interference code division multiple access technology, security, and multiple access communications capabilities, combined with encryption security algorithm from Hash function to design. The agreement, in its communication to a certain extent solves the problem of RFID system security and collision problem, improves operational efficiency and effectively reduces their utility costs. Finally, through the anti-collision performance of the protocol, security, performance and complexity analyzed and compared, we can see that agreement has strong flexibility, practicality and safety.