Radio frequency identification two-way authentication method based on ellipse curve

Abstract

The invention discloses a radio frequency identification two-way authentication method based on an ellipse curve and aims at mainly solving the problems of limited label storage resources, excessively-high calculation complexity and poor communication security of the existing RFID and a SQL interference module. The radio frequency identification two-way authentication method comprises the steps of (1), sending identity information to a label through a reader; (2), reading a session key kvz in per-stored data according to the identity of the reader through the label, encrypting relative authentication information by using the session key and sending an encryption result to the reader; (3), decrypting the relative authentication information by using a key value K through the reader and sending a random number and the session key to the label; (4), checking accuracy of the random number through the label after receiving information sent by the reader and sending an intermeddle value to the reader; and (5), finishing a final authentication process through the reader by using the intermeddle value. Through the method, the two-way authentication of the label and the reader is realized; calculation amount and occupied resources of the label are reduced; the communication safety is ensured; and the method is better applicable to an RFID (Radio Frequency Identification Device) system with limited resources.

Description

Technical field [0001] The invention belongs to the technical field of information security, and particularly relates to a radio frequency identification RFID two-way authentication method, which is mainly applied to the communication between a reader and a tag in a two-way authentication RFID system. Background technique [0002] Radio Frequency Identification RFID is a key technology used to realize object identification in the Internet of Things, and has been widely used in various fields such as transportation, logistics, medical treatment, and production. Because it uses a non-contact way to realize automatic identification of objects, this open link makes security problems very serious, such as object tracking, eavesdropping, tampering, and playback. The incomplete security mechanism of RFID communication system restricts its large-scale application. [0003] The RFID system is mainly composed of three parts: tags, readers and back-end servers. The tag is attached to the ob...

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Problems solved by technology

[0017] The purpose of the present invention is to propose a RFID two-way authentication method based on elliptic curves to solve the above-mentioned problems that the existing party cannot perform tag-to-reader authentication, and the problems of high computational complexity, high consumption of storage resources, and poor security performance

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