Label reader-writer and data communication method and system of radio frequency label

A technology of data communication system and tag reader, applied in the field of radio frequency identification system, can solve the problems of tag tracking, PC, EPC easily stolen by attackers, can not guarantee the reliability and legitimacy of Reader and Tag, etc., to achieve protection and security security, improve anti-attack performance, and improve security

Inactive Publication Date: 2010-06-16
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] 1. Reader and Tag transmit signals without mutual authentication, so the reliability and legitimacy of Reader and Tag cannot be guaranteed;
[0008] 2. The information interaction between Reader a

Method used

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  • Label reader-writer and data communication method and system of radio frequency label
  • Label reader-writer and data communication method and system of radio frequency label
  • Label reader-writer and data communication method and system of radio frequency label

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Embodiment Construction

[0046] The present invention will be described in further detail below with reference to the accompanying drawings and in combination with specific embodiments.

[0047] Such as image 3As shown, in order to improve the data communication security between the tag reader (Reader) and the radio frequency tag (Tag), the present invention adopts a method of encrypting the interactive data between the two. From the perspective of security algorithms, the traditional block cipher technology is difficult to meet the security requirements of RFID systems due to its low security performance; although public key algorithms such as RSA / ECC can reliably guarantee the security of radio frequency tags, they are limited by the area / Due to cost and power consumption constraints, these algorithms are not applicable, and a compromise needs to be made between security strength and area. The AES (Advanced Encryption Standard) algorithm is a symmetric block cipher algorithm issued by the Nationa...

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PUM

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Abstract

The invention discloses a label reader-writer and data communication method and system of a radio frequency label, wherein the method comprises the following steps of: obtaining the ID (Identity) of the radio frequency label through a certification request by the label reader-writer; after the label reader-writer certifies that the radio frequency label is a legal label, computing a derived key of the radio frequency label according to a master key per se and the obtained ID; carrying out data interaction of the label reader-writer and the radio frequency label, wherein cryptograph data encrypted through the key are interacted for sensitive data; and directly carrying out data interaction for non-sensitive data. The system comprises an ID acquisition module, a key computation module and acommunication module which are arranged on the label reader-writer. The invention realizes the safety communication between the label reader-writer and the radio frequency label.

Description

technical field [0001] The invention relates to a radio frequency identification system, in particular to a tag reader, a radio frequency tag data communication method and a system. Background technique [0002] RFID (radio frequency identification) system usually consists of tag reader, radio frequency tag and background database, such as figure 1 As shown, the tag reader communicates with the background database through the interface module; the tag reader and the radio frequency tag each transmit and receive data through the sending module and the receiving module under the action of the controller, and perform radio frequency communication between the two sides through the antenna. communication. [0003] At present, RFID technology is developing rapidly at home and abroad, and there are many varieties. More and more manufacturers are investing in the field of radio frequency identification. While RFID is widely used, because it is based on radio frequency technology i...

Claims

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Application Information

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IPC IPC(8): G06K7/00H04L29/06
Inventor 齐永珍钟金丝冯晓星王新安
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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