KR20130128296A

KR20130128296A - Method and system for providing a prepaid voucher service based on nfc tag

Info

Publication number: KR20130128296A
Application number: KR1020120079762A
Authority: KR
Inventors: 하성욱
Original assignee: (주)큐앤솔브
Priority date: 2012-05-16
Filing date: 2012-07-23
Publication date: 2013-11-26

Abstract

An NFC tag-based prepaid gift certificate service providing method is disclosed. The NFC tag-based prepaid gift certificate service providing method includes a tag writer receiving a uID from an NFC tag, the tag writer transmitting the uID to the prepaid gift certificate server, the tag writer from the prepaid gift certificate server tag ID and the first; Receiving a first key, and the tag writer writing the tag ID and the first key to the NFC tag.

Description

METHOD AND SYSTEM FOR PROVIDING A PREPAID VOUCHER SERVICE BASED ON NFC TAG}

An embodiment according to the concept of the present invention relates to a method and system for providing a prepaid gift certificate service, and more particularly, to a method and system for providing a NFC tag based prepaid gift certificate service that is difficult to forge and hack.

Near Field Communication (NFC) is a non-contact type short-range wireless communication using a frequency band of 13.56MZ, which means a technique of transmitting data between terminals bidirectionally within a distance of 10cm or less. Communication is also possible between the NFC device and the NFC tag. In addition to billing, NFC is used extensively in supermarkets and general stores to provide travel information for goods information and visitors, traffic, access control locks, and device-to-device communications. When NFC is used for payment of goods using prepaid gift certificates, security problems such as forgery or hacking of gift certificates may occur.

Therefore, the technical problem to be achieved by the present invention is to provide a method and system for providing NFC tag-based prepaid gift certificate service that allows users to safely use the prepaid gift certificate by giving a prepaid gift certificate function to the NFC tag.

NFC tag-based prepaid gift voucher service providing method according to an embodiment of the present invention, the tag writer receives a uID from the NFC tag, the tag writer transmits the uID to the prepaid gift certificate server, the tag writer the prepaid gift certificate Receiving a tag ID and a first key from a server, and the tag writer writing the tag ID and the first key to the NFC tag.

The first key is generated by combining the number of the uID and the number associated with the prepaid gift certificate information. The tag ID is generated by combining random numbers.

The NFC tag-based prepaid gift certificate service providing method according to an embodiment of the terminal receiving the uID and the tag ID from the NFC tag, the terminal transmitting the uID and the tag ID to the prepaid gift certificate server, And when the tag ID stored in the prepaid gift certificate server matches the tag ID transmitted from the terminal, the terminal receiving the first key as a second key.

According to an embodiment, the NFC tag-based prepaid gift certificate service providing method may include: encrypting a random number using the second key, transmitting the encrypted random number to the NFC tag, and the NFC tag When the random number stored in the same as the encrypted random number transmitted from the terminal, the terminal may further include receiving an authentication signal from the NFC tag.

According to an embodiment, the NFC tag-based prepaid gift card service providing method may further include decrypting the encrypted random number using the first key.

The prepaid gift voucher server according to an embodiment of the present invention generates a tag ID by generating a tag ID by combining random numbers, and generates a first key by generating a first key by combining a number of uIDs and a number associated with the prepaid gift certificate information. A module, a database storing the tag ID and the first key, and a first key stored in the database when the tag ID received from the terminal and the tag ID stored in the database match. It includes a tag ID comparison module for transmitting to the terminal.

NFC tag-based prepaid gift voucher service providing method and system according to an embodiment of the present invention has the effect that the user can pay the goods without worrying forgery and hacking of the gift certificate by using an encryption algorithm that is difficult to falsify the gift certificate have.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more fully understand the drawings recited in the detailed description of the present invention, a detailed description of each drawing is provided.
1 is a flowchart illustrating a method for issuing a prepaid gift certificate among NFC tag-based prepaid gift certificate service providing methods of a system according to an embodiment of the present invention.
2 is a flowchart illustrating a prepaid gift certificate authentication method for a payment attempt in an NFC tag-based prepaid gift certificate service providing method of a system according to an embodiment of the present invention.
3 is a flowchart illustrating a prepaid gift certificate authentication method for payment processing in the NFC tag-based prepaid gift certificate service providing method of the system according to an embodiment of the present invention.
4 is a flowchart illustrating a method of updating a prepaid gift certificate in a method of providing a prepaid gift certificate service based on an NFC tag according to an embodiment of the present invention.
FIG. 5 shows a schematic block diagram of the prepaid gift certificate server shown in FIG. 1.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are only for the purpose of illustrating embodiments of the inventive concept, But may be embodied in many different forms and is not limited to the embodiments set forth herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are intended to distinguish one element from another, for example, without departing from the scope of the invention in accordance with the concepts of the present invention, the first element may be termed the second element, The second component may also be referred to as a first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings.

1 is a flowchart illustrating a method for issuing a prepaid gift certificate among NFC tag-based prepaid gift certificate service providing methods of a system according to an embodiment of the present invention.

Referring to FIG. 1, the system includes a tag writer 10, an NFC tag 30, and a prepaid gift certificate server 40.

The tag writer 10 transmits a uID request signal for requesting a unique identification number (uID) to the NFC tag 30 to provide a prepaid gift certificate function to the user using the NFC tag 30 (S10). The uID means a unique ID system assigned by the manufacturer of the NFC tag 30. The NFC tag 30 transmits the uID to the tag writer 10 in response to the uID request signal (S11).

The tag writer 10 transmits the uID received from the NFC tag 30 to the prepaid gift certificate server 40 (S12). According to an exemplary embodiment, the tag light 10 may transmit the uID to the prepaid gift certificate server 40 in a secure sockets layer (SSL) manner.

The prepaid gift certificate server 40 generates a tag ID and a first key dKey1 and stores the uID, the tag ID, and the first key dKey1 in the database 47 of the prepaid gift certificate server 40. (S13). According to an embodiment, a prepaid gift certificate amount or a prepaid gift certificate issue date may be stored in the database 47 of the prepaid gift certificate server 40.

The tag ID is generated by combining any number to prevent duplication, copying or hacking of the prepaid gift certificate. The first key dKey1 may be generated by combining a number of the uID and a number associated with prepaid gift certificate information. For example, the number associated with the prepaid gift certificate information may include a prepaid gift certificate serial number, a gift certificate supplier code and / or a service code. The tag ID and the first key dKey1 are generated and managed for each prepaid gift certificate.

In detail, the first key dKey1 may be generated using a master key stored in the prepaid gift certificate server 40. The master key is stored only in the prepaid gift certificate server 40 so that security risks such as hacking can be minimized.

The prepaid gift certificate server 40 transmits the tag ID and the first key dKey1 to the tag writer 10 (S14).

The tag writer 10 transmits a write request signal for requesting to write the tag ID and the first key dKey1 to the NFC tag 30 to the NFC tag 30 (S15). In response to the write request signal, a write operation of writing the tag ID and the first key dKey1 to the NFC tag 30 is performed (S16). After the write operation is performed, the NFC tag 30 transmits the write result to the tag writer 10 (S17), and the tag writer 10 transmits the write result to the prepaid gift certificate server 40 (S18). .

2 is a flowchart illustrating a prepaid gift certificate authentication method for a payment attempt in an NFC tag-based prepaid gift certificate service providing method of a system according to an embodiment of the present invention.

1 and 2, the system may further include a terminal 20 and a shopping server 50. According to an embodiment, the system may comprise a plurality of terminals and a plurality of NFC tags.

An application for using the NFC tag-based prepaid gift certificate service may be installed in the terminal 20. According to an embodiment, the mobile web may be used in the terminal 20 to use the NFC tag-based prepaid gift certificate service. In this specification, the terminal 20 may specifically refer to an application installed in the terminal 20 or a mobile web.

The payment request signal using the prepaid gift certificate is transmitted to the shopping server 50 in order to select an item using an application installed on the terminal 20 or the mobile web, and to pay an amount of the selected item using the prepaid gift certificate. (S20). According to an embodiment, the prepaid gift certificate may be used as a named or bearer name.

After transmitting the payment request signal to the shopping server 50, the terminal 20 transmits a request signal for requesting a uID and a tag ID to the NFC tag 30 (S21). The NFC tag 30 transmits the uID and the tag ID to the terminal 20 in response to the request signal (S22).

The terminal 20 transmits the uID and the tag ID received from the terminal 20 to the prepaid gift certificate server 40 (S23). According to an embodiment, the terminal 20 may transmit the uID and the tag ID to the prepaid gift certificate server 40 in a secure sockets layer (SSL) manner.

The prepaid gift certificate server 40 compares the tag ID stored in the database 47 of the prepaid gift certificate server 40 with the tag ID received from the terminal 20 (S24). The prepaid gift certificate server 40 is the prepaid gift certificate server 40 when the tag ID stored in the database 47 of the prepaid gift certificate server 40 and the tag ID received from the terminal 20 match. The first key dKey1 stored in the database 47 is transmitted to the terminal 20 as the second key dKey2 (S25). According to an embodiment, the prepaid gift certificate server 40 may transmit the second key dKey2 to the terminal 20 in a secure sockets layer (SSL) manner.

3 is a flowchart illustrating a prepaid gift certificate authentication method for payment processing in the NFC tag-based prepaid gift certificate service providing method of the system according to an embodiment of the present invention.

1 to 3, the terminal 20 transmits a payment authentication request signal to the NFC tag 30 (S30). NFC tag 30 generates a random number in response to the payment authentication request signal (S31), and transmits the generated random number to the terminal 20 (S32).

The terminal 20 encrypts the random number using a second key dKey2 (S33), and transmits the encrypted random number to the NFC tag 30 (S34).

The NFC tag 30 decrypts the encrypted random number using a first key dKey1 and compares the random number stored in the NFC tag 30 with the encrypted random number transmitted from the terminal 20 (S35).

The NFC tag 30 transmits an authentication signal for completing payment approval to the terminal 20 when the random number stored in the FC tag 30 and the encrypted random number transmitted from the terminal 20 are the same (S36). The NFC tag 30 transmits an error signal to the terminal 20 when the random number stored in the NFC tag 30 and the encrypted random number transmitted from the terminal 20 are not the same.

The terminal 20 transmits a payment approval request signal to the shopping server 50 (S37). The shopping server 50 processes the payment in response to the payment approval request signal (S38), and transmits the payment result to the terminal 20 (S39).

4 is a flowchart illustrating a method of updating a prepaid gift certificate in a method of providing a prepaid gift certificate service based on an NFC tag according to an embodiment of the present invention.

1 to 4, after the terminal 20 receives the payment result from the shopping server 50, the terminal 20 transmits a balance update request signal to the NFC tag 30 (S50). In response to the balance update request signal, the NFC tag 30 writes an amount deducted from a payment amount (S51), and transmits a recording result to the terminal 20 (S52). According to an embodiment, the terminal 20 may transmit the recording result to the prepaid gift certificate server 40. For example, when the prepaid gift certificate is a gift certificate issuer, a pseudonymism policy, or the prepaid gift certificate is a registered ceremony, the terminal 20 transmits the result of the recording to the prepaid gift certificate server 40 so that the prepaid gift certificate server 40 is configured to execute the prepaid gift certificate. Allows you to manage the balance and usage history (S54). In other words, the database 47 of the prepaid gift certificate server 40 is updated.

FIG. 5 shows a schematic block diagram of the prepaid gift certificate server shown in FIG. 1.

1 to 5, the prepaid gift certificate server 40 includes data of the tag ID generation module 41, the first key generation module 43, the tag ID comparison module 45, and the prepaid gift certificate server 40. And base 47.

As used herein, a module may refer to a functional or structural combination of hardware to perform the authentication method or software that can drive the hardware according to an embodiment of the present invention. Thus, the module may refer to a program code and a logical unit or set of hardware resources that can execute the program code.

When the prepaid gift certificate server 40 receives the uID from the tag writer 10, the tag ID generation module 41 generates a tag ID by combining an arbitrary number and converts the generated tag ID into the prepaid gift certificate server ( 40 is stored in the database 47.

The first key generation module 43 combines the number of the uID and the number associated with the prepaid gift certificate information to generate the first key dKey1 and stores it in the database 47.

The tag ID comparison module 45 compares the tag ID received from the terminal 20 with the tag ID stored in the database 47 of the prepaid gift certificate server 40. When the tag ID stored in the database 47 and the tag ID received from the terminal 20 match, the tag ID comparison module 45 uses the first key dKey1 stored in the database 47 as a second key. The data is sent to the terminal 20 as dKey2.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10; Tag writer
20; terminal
30; NFC tag
40; Prepaid Gift Certificate Server
50; Shopping server

Claims

The tag writer receiving the uID from the NFC tag;
Transmitting, by the tag writer, the uID to a prepaid gift certificate server;
The tag writer receiving a tag ID and a first key from the prepaid gift certificate server; And
NFC tag based prepaid gift voucher service method comprising the step of writing the tag ID and the first key to the NFC tag.

The method of claim 1, wherein the first key,
Is generated by combining the number of the uID and the number associated with the prepaid gift certificate information,
The tag ID,
NFC tag-based prepaid gift certificate service generated by combining a random number.

The method of claim 1, wherein the NFC tag-based prepaid gift certificate service is provided.
Receiving, by the terminal, the uID and the tag ID from the NFC tag;
Transmitting, by the terminal, the uID and the tag ID to the prepaid gift certificate server; And
And when the tag ID stored in the prepaid gift certificate server and the tag ID transmitted from the terminal match, the terminal further comprising receiving the first key as a second key. .

The method of claim 3, wherein the NFC tag-based prepaid gift certificate service is provided.
Encrypting, by the terminal, a random number using the second key;
The terminal transmitting the encrypted random number to the NFC tag; And
When the random number stored in the NFC tag and the encrypted random number transmitted from the terminal is the same, the terminal further comprises the step of receiving an authentication signal from the NFC tag NFC tag-based prepaid gift certificate service providing method.

The method of claim 4, wherein the NFC tag-based prepaid gift certificate service is provided.
The NFC tag further comprises the step of decrypting the encrypted random number using the first key NFC tag-based prepaid gift certificate service providing method.

Tag ID generation module for generating a tag ID by combining any number;
a first key generation module for generating a first key by combining a number of uIDs and numbers associated with prepaid gift certificate information;
A database for storing the tag ID and the first key; And
And a tag ID comparison module for transmitting the first key stored in the database as the second key to the terminal when the tag ID received from the terminal and the tag ID stored in the database match.