CN103854042A

CN103854042A - RFID label reader-writer authentication and label anti-cloning method

Info

Publication number: CN103854042A
Application number: CN201410093078.2A
Authority: CN
Inventors: 朱晓东; 赵彬; 叶培华; 姚飞; 孙文; 李鹤鸣; 池安云
Original assignee: ZHI KUN (JIANGSU) SEMICONDUCTOR Co Ltd
Current assignee: Zhi Kun Jiangsu Semiconductor Co ltd; Zhikun (Hefei) Semiconductor Co.,Ltd.
Priority date: 2014-03-14
Filing date: 2014-03-14
Publication date: 2014-06-11
Anticipated expiration: 2034-03-14
Also published as: CN103854042B

Abstract

The invention provides an RFID label reader-writer authentication and a label anti-cloning method. The method includes the followings steps of authorizing the RFID label reader-writer, coding the RFID label reader-writer and encryption and decryption of a code, authentication of the RFID label reader-writer and anti-cloning of an RFID label. According to the method, the RFID label reader-writer with the unique code and the authorization RFID label reader-writer which is pre-stored in a backstage server are compared in terms of consistency. Thus, authentication of the RFID reader-writer is achieved. A random RFID label reader-writer which is not authorized can be effectively prevented from obtaining information on the RFID label illegally and ensure safety of user information. A segment of dynamic symmetric cryptography is added in data content of the RFID label, consistency comparison is carried out on the segment of dynamic symmetric cryptography and an identification code which is stored in a rear stage server in advance and after successful reading and writing each time, and the dynamic symmetric cryptography of the RFID label and the authentication code in the rear stage server are synchronously and dynamically updated. The data of the RFID label can be effectively prevented from being embezzled and coned illegally. The unique identifier function of commodities can be achieved through the RFID label.

Description

RFID tag read-write equipment authentication and the anti-clone's of label method

Technical field

The safety that the present invention relates to a kind of RFID (radio-frequency (RF) identification) label sets method, relates in particular to a kind of RFID tag read-write equipment authentication and the anti-clone's of label method.

Background technology

Internet of Things (Internet of things) is the important trend of current information networking development, is called as computing machine, the internet third wave of world's information industry afterwards, and radio RF recognition technology RFID is one of gateway of internet of things key technology.RFID technology is a kind of contactless automatic identification technology, it is automatically identified destination object and is obtained related data by radiofrequency signal, with its identification can radio read-write, strong, the distance of signal penetration capacity, long service life, good environmental adaptability, can many labels identify simultaneously, the advantage such as the large and data of information storage capacity can be rewritten, be used widely in recent years.

When existing RFID label read-write, RFID label does not need just directly to respond through its owner's permission the inquiry of read write line, in the situation that user does not have perception, read by near read write line, these read write lines can directly be inquired about in background server the relevant data of label therewith by the label data reading, and user data exists and illegally usurped the possibility that produces heavy losses; Because the indifference of label data responds the data leak causing, label data is acquired, likely make label illegally be cloned, make label cannot realize the function of commodity uniqueness mark.

Summary of the invention

The object of the invention is can be read by any read write line for overcoming current RFID label data, the defect that data are revealed and label is cloned easily occurs.

For achieving the above object, the present invention is by the following technical solutions:

A kind of method that RFID tag read-write equipment authentication and the anti-clone of label are provided, comprises the following steps:

(1) RFID tag read-write equipment mandate: deposit the list of authorized RFID tag read-write equipment in background server;

(2) RFID tag read-write equipment is encoded: RFID tag read-write equipment is carried out to coding unique number;

(3) encryption to coding: unique number coding described in step (2) carried out to public key encryption by built-in PKI memory block in the core SOC of RFID tag read-write equipment chip;

(4) deciphering to coding: the unique number coding through public key encryption described in step (3) is sent to background server by RFID tag read-write equipment, by the private key for user of depositing in background server, unique number coding is decrypted;

(5) RFID tag read-write equipment is carried out to authentication: the unique number coding through deciphering described in step (4) compared with the authorized RFID tag read-write equipment list described in step (1), so be coded in for unique number in the list of described mandate RFID tag read-write equipment, have the right to read and write RFID label with the RFID tag read-write equipment of this unique number coding;

(6) the anti-clone of RFID label: add one section of dynamic symmetric cryptography in RFID label data content, in background server, deposit authentication password, the RFID tag read-write equipment of having the right described in step (5) reads data content in RFID label and dynamic symmetric cryptography send it to background server, dynamically the authentication password in symmetric cryptography and background server is compared, if consistent, background server sends response to RFID tag read-write equipment, confirm to read and write successfully, RFID tag read-write equipment produce immediately one group of new dynamic password and write inserting RFID tags and background server in, authentication password in dynamic symmetric cryptography and background server to RFID label carries out synchronous dynamic renewal.

Unique number coding described in step (2) is produced or specified generation by software by OTP code area built-in in the core SOC of RFID tag read-write equipment chip.

Before being sent to background server through unique number coding of public key encryption described in step (4), can carry out single channel encryption.Authentication password in dynamic symmetric cryptography and the background server of RFID label described in step (6) can carry out single channel encryption before transmission.

The present invention realizes the authentication of RFID tag read-write equipment by the method for pre-stored mandate RFID tag read-write equipment in the RFID tag read-write equipment of unique number coding and background server being carried out to consistance and comparing, can effectively prevent that unwarranted any RFID tag read-write equipment from illegally obtaining RFID label information, guaranteed the safety of user profile.By being carried out to consistance, authentication password pre-stored in additional one section of dynamic symmetric cryptography and background server in RFID label data content compares, authentication password in dynamic symmetric cryptography and background server to RFID label at every turn after reading and writing successfully carries out synchronous dynamic renewal, can effectively prevent that RFID label data from illegally being usurped rear quilt and illegally cloning, assurance RFID label is realized the function of commodity uniqueness mark.

Accompanying drawing explanation

Fig. 1: principle of the invention schematic diagram.

Embodiment

RFID tag read-write equipment completes after label data read-write, establish a communications link by network and background server, then with RFID tag read-write equipment OTP(one-off programming) read, the verify data forming through public key encryption OTP unique coded data later sends to backstage read write line Verification System together, backstage read write line Verification System is deciphered data by private key after, compare with the database mandate RFID tag read-write equipment list at RFID label place, to confirm that whether RFID tag read-write equipment is in the scope of authority, if unauthorized read write line, cannot obtain the affiliated all the elements of label in data, if authorize RFID tag read-write equipment, can complete the inquiry of content, thereby effectively realize the system authentication of RFID tag read-write equipment.

RFID tag read-write equipment is in the time reading label, label data content in read write tag and dynamically symmetric cryptography, then together this two number is reportedly delivered to background server, dynamically the authentication password of symmetric cryptography and background server is compared, if consistent with the authentication password on server, server sends response to read write line, confirms to read and write successfully, read write line produce one group of new dynamic password and write label and background server in, password is carried out to symmetric dynamic renewal.If at this moment there is clone's label, due to the dynamic symmetric cryptography that can not upgrade in time, so even can for the moment the data in label be cloned completely, but due to cannot with the background server dynamic symmetric cryptography that upgrades in time, therefore can be just illegal label by system identification easily, thereby effectively prevent that label is cloned.

Claims

1. RFID tag read-write equipment authentication and the anti-clone's of label a method, is characterized in that, comprises the following steps:

2. RFID tag read-write equipment authentication according to claim 1 and the anti-clone's of label method, is characterized in that: unique number coding described in step (2) is to produce by OTP code area built-in in the core SOC of RFID tag read-write equipment chip.

3. RFID tag read-write equipment authentication according to claim 1 and the anti-clone's of label method, is characterized in that: unique number coding described in step (2) is to specify generation by software.

4. RFID tag read-write equipment authentication according to claim 1 and the anti-clone's of label method, is characterized in that: before being sent to background server through unique number coding of public key encryption described in step (4), carry out single channel encryption.

5. RFID tag read-write equipment authentication according to claim 1 and the anti-clone's of label method, is characterized in that: the authentication password in dynamic symmetric cryptography and the background server of RFID label described in step (6) carries out single channel encryption before transmission.