KR100829384B1 - Method for preventing forgery and alteration of a rfid tag, and system the same - Google Patents

Abstract

A method and a system for preventing forgery/alteration of an RFID(Radio Frequency IDentification) tag are provided to protect the RFID tag from the forgery/alteration with management of information for realizing an RFID service by using a TID(Tag ID) in the RFID tag and a UID(Unique ID) of an object. A tag issuance tool(200) transmits a TID and a UID to an object information server(410) through the network(400) by receiving the UID of an object corresponding to an RFID tag(100), and reading the TID and the UID, which are previously formed in the RFID tag based on a tag memory map. The object information server forms and manages matching information by receiving the TID and the UID. A tag interpretation tool(300) obtains the TID and the UID by reading the RFID tag, and transmits the TID and the UID to the object information server. The object information server determines forgery/alteration of the TID and the UID, which are received from the tag interpretation tool, based on the matching information. The tag interpretation tool includes an RFID reader(310) for reading the UID from the RFID tag and reads the TID. The tag issuance tool includes an RFID writer(210) for inputting the UID to the RFID tag.

Description

METHOD FOR PREVENTING FORGERY AND ALTERATION OF A RFID TAG, AND SYSTEM THE SAME}

The present invention relates to an RFID technology, and more particularly, to prevent forgery and alteration of an RFID tag by using a TID (Tag ID, hereinafter called 'TID'), which is a unique ID of an RFID tag, to determine whether the RFID tag is forged or not. It relates to a method and a system.

Typically, RFID (Radio Frequency Identification) is a technology for identifying unique information about an object to which a tag is attached, and an RFID reader is referred to as a unique information (UID) of an object included in a corresponding RFID tag. Reading) to determine the unique information on the object through linkage with the object information server.

In particular, the UHF RFID standard in the 900 MHz band is a standard intended for use in the logistics / distribution field, and reads UIDs in which RFID readers are provided in RFID tags provided by contributors of the object, distribution warehouses, and retail stores. This is to implement the related RFID service through interworking with the object information server. This means that if each RFID reader can be manufactured and implemented, the UID stored in the RFID tag can also be found. There is a problem in that an illegally duplicated UID can be illegally manufactured to produce an RFID tag that does not go through a normal issue route.

Accordingly, the present invention was created to solve the above problem, and an object of the present invention is to manage information for implementing an RFID service by utilizing both a TID, a unique ID included in an RFID tag, and a UID, a unique ID of a corresponding object. Accordingly, to provide a method and system for preventing forgery and alteration of an RFID tag for preventing forgery and alteration of an RFID tag.

The system of the present invention for achieving this purpose is to input the UID for a predetermined object in the RFID tag, and read the TID and the UID, which is a unique ID previously formed based on the tag memory map, to the object information server. And a tag issuance tool for registration, the TID and the UID are received to form and manage corresponding matching information, and information for storing forgery and discrimination for the TID and UID provided from a tag analysis tool for reading the RFID tag; It may be implemented to include an object information server for determining and notifying through matching of the.

Therefore, in the present invention, it is possible to determine whether the forgery of the RFID tag is tampered with using a TID which is a unique ID of the RFID tag, thereby preventing the forgery and the modulation of the RFID tag.

According to a first aspect of the present invention, there is provided a method for preventing forgery and alteration of an RFID tag, wherein the tag issuing tool inputs a unique ID (hereinafter referred to as 'UID') of an object corresponding to the RFID tag. (B) reading a unique ID (hereinafter referred to as 'TID') and the UID of the RFID tag pre-formed on the RFID tag based on a tag memory map, and (c) accessing the object information server through a communication network. Registering the TID and the UID; and (d) forming and managing matching information for the TID and the UID by the object information server, and (e) issuing the RFID tag. It is done.

Preferably, the step (a) is characterized in that the tag issuance tool includes an RFID writer for inputting the UID to the RFID tag, and is implemented to read the UID and the TID.

Preferably, the step (b) further includes reading the UID, and re-entering the UID when it is determined that the UID is not input or an error input.

In addition, the method for preventing forgery and tampering of an RFID tag according to the second aspect of the present invention for achieving the above object, (A) a tag analysis tool to read the RFID tag to collect information, (B) included in the RFID tag Determining the codes of the TID and the UID, (c) connecting the object information server through a communication network, and transmitting the TID and the UID; and (d) the object information server based on the pre-stored information. It characterized in that it comprises the step of determining whether the forgery of the.

Preferably, the step (a) is characterized in that the tag analysis tool includes an RFID reader for reading the UID stored in the RFID tag, and is implemented to read the TID.

Preferably, the step (b) forms a code error when the codes of the TID and the UID do not meet a predetermined code criterion.

Preferably, the code criterion is that the code of the UID is based on an Electronic Product Code (EPC) or International Standard Organization (ISO) standard, and the code of the TID is based on a tag memory map for the RFID tag. do.

Preferably, the step (d) includes (d) determining whether the UID is present based on the pre-stored information, and (d-2) determining whether the TID is present when the UID is provided. (D-3) determining whether the UID and the TID match by using matching information of the UID and the TID included in the pre-stored information, and (D-4) corresponding to the determination result. Providing an RFID service.

Preferably, the step (la-1) further comprises the step of forming a message for notifying that the RFID tag is an inappropriate tag when the UID is insufficient, and forwarding it to the tag analysis tool.

Preferably, the step (la-2) further comprises the step of forming a message for notifying that the RFID tag is a forged tag if the TID is not complete and delivers it to the tag analysis tool.

Preferably, the step (D-4) forms a message for notifying that the RFID tag is a tampered tag when the determination result is that no matching is formed between the UID and the TID. It further comprises the step of delivering.

In addition, the anti-forgery system of the RFID tag according to the third aspect of the present invention for achieving the above object, inputs the UID of the object corresponding to the RFID tag, the TID and the pre-formed based on the tag memory map to the RFID tag and A tag issuance tool for delivering the TID and the UID by reading a UID, and receiving the TID and the UID, and reading the object information server and the RFID tag to form and manage corresponding matching information. A tag analysis tool for acquiring the TID and the UID and transferring the TID and the UID to the object information server, wherein the object information server forgers the TID and the UID provided from the tag analysis tool; It is characterized by determining based on the matching information.

Preferably, the tag issuance tool comprises an RFID writer for inputting the UID to the RFID tag, characterized in that for reading the TID and the UID.

Preferably, the tag analysis tool comprises an RFID reader for reading the UID stored in the RFID tag, characterized in that for reading the TID.

Preferably, the object information server is characterized in that for forming the determination result according to whether the TID and the UID match the matching information.

Preferably, the object information server forms a message corresponding to the determination result and delivers it to the tag analysis tool.

In addition, the tag issuance tool according to the fourth aspect of the present invention for achieving the above object, inputs the UID of the object corresponding to the RFID tag, reading the TID and the UID pre-formed on the RFID tag based on a tag memory map And transmit the TID and the UID through a connection with a communication network, and include an RFID writer for inputting the UID to the RFID tag.

In addition, the tag analysis tool according to the fifth aspect of the present invention for achieving the above object, by reading the RFID tag to obtain the TID and UID pre-stored in the RFID tag, the TID and the UID in connection with the communication network Receiving information for determining whether the forgery for the TID and the UID is delivered by transmitting a, characterized in that it comprises an RFID reader for reading the RFID tag.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the anti-forgery system of the RFID tag 100 according to the present invention in detail.

1 is a block diagram of a system for preventing tampering of an RFID tag 100 according to an embodiment of the present invention. As shown in FIG. 1, the system for preventing tampering of an RFID tag 100 corresponds to an RFID tag 100. A UID, which is a unique ID indicating a predetermined object, is input to the RFID tag 100, and a TID, which is a unique ID that is previously formed and stored based on a tag memory map while manufacturing the RFID tag 100, is read. In addition, after reading the UID, the tag issuance tool 200 for transmitting the UID and the TID is connected to the following object information server 410, and forms, stores and manages the matching information for the transmitted TID and the UID, RFID Determining whether or not forgery with respect to the TID and UID provided from the tag analysis tool 300 through the pre-stored information in conjunction with the tag analysis tool 300 to access based on the TID and UID obtained by reading the tag 100 Object Information for Server 410.

The tag issuance tool 200 includes an RFID writer 210 for inputting the UID to the RFID tag 100 and is implemented to read the UID and the TID stored in the RFID tag 100.

In addition, the tag analysis tool 300 includes an RFID reader 310 for reading the UID stored in the RFID tag 100, and is implemented to read the TID stored in the RFID tag 100.

In addition, the object information server 410 determines whether or not the forgery of the RFID tag 100 read by the tag analysis tool 300 through matching between the TID and UID provided from the tag analysis tool 300 and matching information stored in advance. Determine. In addition, it is preferable that the object information server 410 forms a related message based on the determination result of the provided TID and the UID, and delivers the related message to the tag analysis tool 300.

The RFID tag 100 has a TID including a country of origin, a production site, and a serial number of the tag 100, which is a value stored in a chip forming the tag 100 while producing the RFID tag 100. It is impossible to change. Table 1 below shows the memory structure of the chip forming the UHF RFID tag (100).

As shown in Table 1, areas 0x00 to 0x1F are values of TID (4 bytes).

In addition, Table 2 below shows the memory structure of the chip forming the Philips Mifare Ultralight tag (100).

As shown in Table 2, the area of Page 0 to 1 is the value (8 bytes) of the TID of the tag 100.

When the TID is issued while the UID is input while the TID is issued, the TID is transmitted together with the object information server 410, and then stored and managed. Thus, a tag analysis tool for event processing related to the reading of the RFID tag 100 ( It is possible to determine whether the RFID tag 100 is tampered with by determining whether or not the TID and UID provided from 300 match.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the operation of the anti-forgery system of the RFID tag 100 according to the present invention in detail.

FIG. 2 is a flowchart illustrating a process of issuing an RFID tag 100 through an anti-forgery and prevention system of the RFID tag 100 shown in FIG. 1. As shown in FIG. 2, the method for issuing an RFID tag 100 includes assigning a TID pointing to the RFID tag 100 based on a tag memory chip for the RFID tag 100 (S100 and S102). . The TID allocation is formed by the manufacturer who manufactures the RFID tag 100 and does not change.

Subsequently, a step for manufacturing the RFID tag 100 is entered. The UID for a predetermined object corresponding to the RFID tag 100 is input through the tag issuing tool 200 (S104). The UID is read again to determine whether the code of the UID is input based on an EPC (Electronic Product Code) or an International Standard Organization (ISO) standard (S106 and S108).

After the determination process, the tag issuance tool 200 is connected to the object information server 410 through the communication network 400 to execute the registration for the UID (S110), the TID stored in the RFID tag 100 Additional reading is transmitted and registered to the object information server 410 (S112). Accordingly, the object information server 410 forms matching information about the provided UID and TID, and stores and manages the matching information in the database (S114).

In step S114, the object information server 410 transmits a message for notifying the tag issuing tool 200 to perform registration again if the registration of the UID and the TID is not completed. Form and deliver a message (S116).

Thereafter, the tag issuance tool 200 issues the registration of the information stored in the RFID tag 100, thereby issuing the RFID tag 100 (S118).

3 is a flowchart illustrating a process of determining whether the RFID tag 100 is forged or tampered through the forgery prevention system of the RFID tag 100 illustrated in FIG. 1. As shown in FIG. 3, the tag analysis tool 300 reads a predetermined RFID tag 100 distributed therein to acquire information stored in the RFID tag 100 (S200) and a TID included in the obtained information. And the process of determining the code of the UID (S202).

In step S202, if a determination error about a code of a TID and a UID occurs, a process of notifying reading again is performed, and the code of the UID is based on an EPC (Electronic Product Code) or an International Standard Organization (ISO) standard. If the TID code is interpreted to be based on the tag memory map for the RFID tag 100, the process proceeds to the next step (S204).

The tag analysis tool 300 is connected to the object information server 410 through the communication network 400 based on the acquired TID and UID (S206), and transmits the TID and UID to the object information server 410 to the object information. The server 410 requests whether the RFID tag 100 is forged or not after determining the TID and the UID (S208).

Accordingly, the object information server 410 performs a process of determining whether the received UID exists in the database based on information previously stored in a database (S210), and in the step S210, the UID in the database. Is determined to be incomplete, the RFID tag 100 is treated as an inappropriate tag 100 and transmitted to the tag analysis tool 300 (S212).

In step S210, if it is determined that the UID is provided in the database, a process of determining whether a TID corresponding to the UID exists is performed (S214). If the TID does not exist in the database in step S214, the RFID is detected. The tag 100 is transmitted as the forged tag 100 to the tag analysis tool 300 (S216).

In addition, in step S214, when there is no TID matching the UID, the RFID tag 100 is transmitted as a tag 100 as a modulated tag 100 (S218 and S220), and the UID. If there is a TID matched with the RFID tag 100 is determined that the normal tag 100 is not forged and transmitted to the tag 100, the analysis tool 300 (S222).

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

1 is a block diagram of a system for preventing tampering of an RFID tag according to an embodiment of the present invention,

FIG. 2 is a flowchart illustrating a process of issuing an RFID tag through the anti-forgery system of the RFID tag shown in FIG. 1;

FIG. 3 is a flowchart illustrating a process of determining whether a forgery of an RFID tag is made through the forgery prevention system of the RFID tag illustrated in FIG. 1.

<Description of Symbols for Main Parts of Drawings>

100: RFID tag 200: tag issuance tool

210: RFID writer 300: tag analysis tool

310: RFID reader 400: communication network

410: object information server

Claims (18)

(A) inputting a unique ID (hereinafter, referred to as 'UID') of an object corresponding to the RFID tag by the tag issuing tool; (B) reading a unique ID (hereinafter, referred to as 'TID') and the UID of the RFID tag pre-formed on the RFID tag based on a tag memory map; (C) registering the TID and the UID by connecting to an object information server through a communication network; (D) the object information server forming and managing matching information on the TID and the UID; And (E) issuing the RFID tag. The method of claim 1, wherein step (a) The tag issuance tool includes an RFID writer for inputting the UID to the RFID tag, And forging the UID and the TID. The method of claim 1, wherein step (b) Reading the UID further; And re-enter the UID if it is determined that the UID is not input or is an error input. (A) the tag analysis tool reading the RFID tag and collecting information; (B) determining a code of a TID and a UID included in the RFID tag; (C) accessing an object information server through a communication network and transmitting the TID and the UID; And (D) The object information server forgery forgery prevention method comprising the step of determining whether the forgery of the TID and UID on the basis of previously stored information. The method of claim 4, wherein step (a) The tag analysis tool includes an RFID reader for reading the UID stored in the RFID tag, And tampering with the TID. The method of claim 4, wherein the step (b) And if a code of the TID and the UID does not meet a predetermined code standard, forming a code error. 7. The method of claim 6 wherein the code criteria is The code of the UID is based on an Electronic Product Code (EPC) or International Standard Organization (ISO) standard, and the code of the TID is based on a tag memory map for the RFID tag. The method of claim 4, wherein (d) comprises: (D-1) determining whether the UID exists based on the previously stored information; (D-2) determining whether the TID exists when the UID is provided; (D-3) determining whether the UID and the TID match by matching information between the UID and the TID included in the pre-stored information; And (D-4) A method for preventing forgery and alteration of an RFID tag, comprising providing a corresponding RFID service according to the determination result. The method of claim 8, wherein the step (la-1) The method for preventing forgery and tampering with an RFID tag, when the UID is insufficient, forming a message for informing that the RFID tag is an inappropriate tag and transmitting the message to the tag analysis tool. The method of claim 8, wherein the step (la-2) And if the TID is not available, forming a message for informing that the RFID tag is a forged tag, and transmitting the message to the tag analysis tool. The method of claim 8, wherein (D-4) If the determination result is that no matching is formed between the UID and the TID, forming a message for notifying that the RFID tag is a modulated tag and transmitting the message to the tag analysis tool. How to prevent tampering with tags. A tag issuing tool for inputting a UID of an object corresponding to an RFID tag, reading the TID and the UID previously formed on the RFID tag based on a tag memory map, and transmitting the TID and the UID to a connection with a communication network; An object information server receiving the TID and the UID to form and manage corresponding matching information; And A tag analysis tool for reading the RFID tag to obtain the TID and the UID, and transferring the TID and the UID to the object information server; And the object information server determines whether the forgery of the TID and the UID is provided from the tag analysis tool based on the matching information. The method of claim 12, wherein the tag issuance tool is And an RFID writer for inputting the UID to the RFID tag, and reading the TID and the UID. The method of claim 12, wherein the tag analysis tool And a RFID reader for reading the UID stored in the RFID tag, and reading the TID. The method of claim 12, wherein the object information server And forming a corresponding determination result according to whether the TID and the UID match the matching information. The method of claim 12, wherein the object information server And a message corresponding to the determination result and transmitted to the tag analysis tool. Inputting the UID of the object corresponding to the RFID tag, reading the TID and the UID previously formed on the RFID tag based on a tag memory map, and transmitting the TID and the UID through a connection with a communication network; And a RFID writer for inputting the UID to the RFID tag. Reading the RFID tag and acquiring the TID and UID previously stored in the RFID tag, and receiving the information for determining whether the TID and the UID are forged by transferring the TID and the UID through a connection with a communication network, And a RFID reader for reading the RFID tag.

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