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Dynamic authentication method between reader and tag card and implementing device thereof

A dynamic authentication, reader-writer technology, applied in the field of radio frequency identification

Inactive Publication Date: 2011-07-27
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a dynamic authentication method and implementation device between the reader-writer and the tag card, which is used to solve the problem that the traditional authentication method must rely on the real-time online, reliable and safe connection with the background database, The technical problem that the tag card cannot be authenticated by the reader with a high degree of autonomy

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  • Dynamic authentication method between reader and tag card and implementing device thereof
  • Dynamic authentication method between reader and tag card and implementing device thereof
  • Dynamic authentication method between reader and tag card and implementing device thereof

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0055] h(.) in the embodiment of the present invention is a summary function {0, 1} in the sense of cryptography * → {0, 1} 1 , where 1 is the security parameter of the RFID system, here is the length of the ID of the tag card of the present invention. Suppose there are m readers R in the system i , 1≤i≤m, and n label cards T j , 1≤j≤n, where m, n are positive integers greater than or equal to 1;

[0056] image 3 The step flow chart of the dynamic ID authentication method based on the highly autonomous RFID reader-writer provided by the embodiment of the present invention, the detailed steps are as follows:

[0057] Step S400, perform authentication database, reader R i and tag card T j Initialization, generated in the authentica...

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Abstract

The invention discloses a dynamic authentication method between a reader and a tag card and an implementation device thereof for solving the technical problem that the traditional authentication method must depend on real-time online reliable and safe connection with a backstage database, and cannot authenticate the tag card with the reader autonomously at a high degree. In the method, only a legal reader can acquire corresponding tag authentication information from an authentication database to authenticate or update the state of the corresponding tag; only a legal tag can be processed by the legal reader; a dynamic updating mechanism is applied to the tag identification (ID) in the authenticating process to ensure the forward security, and the reader stores the tag card information by adopting a Hash table, thereby improving the authentication speed; and data synchronization is realized skillfully in an attribute value mode; and the use of random numbers ensures that different data packets can be used in each authentication, so that the position information of the tag is effectively concealed and high security characteristic is provided.

Description

technical field [0001] The invention relates to radio frequency identification technology, in particular to a dynamic ID authentication method based on a highly autonomous RFID reader-writer and a tag card and an implementation device. Background technique [0002] Radio Frequency Identification (RFID) is a non-contact automatic identification technology, which automatically identifies target objects and obtains relevant data through radio frequency signals. The technology does not require human intervention, can work in complex environments, and the significant advantage of this technology is that no physical contact is required. At present, RFID products have been widely used in retail, automatic charging, animal identification, logistics, warehousing, library management and other fields. [0003] The basic composition of RFID includes a reader (reader), an RFID tag (tag) and a background database (DB). In general, electronic tags are composed of antennas and tag-specifi...

Claims

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Application Information

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IPC IPC(8): G06K17/00G06K19/07
CPCH04L9/00G06K19/07G06F21/31G06F21/00G06K17/00H04L9/3239H04L2209/805G06K7/10366H04L9/3273H04L9/50
Inventor 薛涛杜军朝刘惠刘树君贺文陈文婧郭江坤邓清哲刘传益
Owner ZTE CORP
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