KR100602107B1 - Software rights management system and its method in network configuration - Google Patents

Abstract

The present invention relates to a software copyright management system and method thereof in a network environment, and more particularly, to the use of software in a client PC, the license server transmits whether the license server is legitimate use to the client PC to block illegal use of the software. A system and method thereof are provided.

Software copyright management system of a network environment according to the present invention includes a client PC is installed by transmitting the product serial number of the software is registered, the license agent program to authenticate the legal use by transmitting authentication request information; And a license server that receives the product serial number from the client PC through the network to authenticate the genuine software, and receives the authentication request information to determine whether it is legitimate use, and transmits the result to the client PC.

The software copyright management system and method thereof according to the present invention prohibit illegal use of software by establishing a license server to authenticate product certification and legal use of software installed on a client PC. It also protects the rights of copyright owners and licensees of software by preventing illegal use of the software.

Software, client, server, copyright, use, authentication, authorization

Description

Software rights management system and its method in network environment

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a block diagram of a copyright management system according to an embodiment of the present invention.

Figure 2 is a block diagram of a management system of a distributed server environment according to another embodiment of the present invention.

Figure 3 is a block diagram of a comparison criteria for the license server to authenticate the formal use of the software according to an embodiment of the present invention.

4 is a data structure diagram of a database according to an embodiment of the present invention.

5 is a flow chart of a copyright management method according to an embodiment of the present invention.

6 is a flowchart of a software registration authentication process according to an embodiment of the present invention.

7 is a flowchart of a software use authentication process according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: Copyright management system 2: Client PC

3: License Server 4: Registration Broker

21: Software 22: License Agent

23: using software DB 31: communication module

32: product registration module 33: product registration DB

34: authentication module 35: authentication DB

The present invention is a software copyright management system and method thereof in a network environment, and more particularly, a user connects to a license server via a network in order to be authorized to use the software of a client PC, and the license server is adapted to use the software. The present invention relates to a copyright management system and method for judging whether the use is valid and transmitting the permission back to the client PC to protect the copyright of the software by blocking illegal use.

Other digital data, such as multimedia data, content, software, etc., are characterized by simplicity of copying and using. In addition, since these digital data can be quickly spread through a network called the Internet, users who are not authorized users can easily obtain and use illegally copied data from the Internet.

In general, software is the product of intellectual property that authors have long planned and completed through human and physical investments. Therefore, the software must be authorized to run only for the licensed user who purchased it. The distribution and use of licensed software is a requirement not only for the developers and producers of the software, but also for licensees who have paid for the purchase.

In order to protect the copyright of such software, the serial number was initially assigned to the software so that only authorized users can install genuine software on their PCs. However, many users have obtained software and serial numbers from licensees and installed them illegally on their PCs.

Many people, in particular, are fully aware that illegal use of software is a violation of the law, harms the development of the software industry, and violates the intellectual property rights of others. Nevertheless, the majority of users are illegal to use due to the characteristics of the product and due to the customary environment that has been repeatedly visited.

As described above, the product characteristics and usage environment of the software are inconvenient for copyright holders to exercise their rights in response to illegal users, and many users do not eradicate illegal use for convenience even though they know that the official use is legal. .

The present invention is to solve the above-mentioned problems, to protect the copyright holder and the genuine user of the software by receiving the registration of the software from the authorized user to activate the product, and determine whether the software is legally executed every time the software is used and the license It is an object of the present invention to provide a software copyright management system and method for enabling the same.

Software copyright management system of the network environment of the present invention for achieving the above object, in the copyright management system for managing the copyright of the software by authenticating the authorized user of the specific software in the client / server environment over the network, The user information including the product serial number of the software and the primary IP address of the licensee is transmitted to be registered as a licensed user, and the authentication request information including the product serial number is transmitted for use of the software to verify whether the licensed user uses it. A client PC on which a receiving license agent program is installed; And when the user information is received from the client PC through the network and the product serial number is valid, the official user information is registered, and the authentication request information is received and compared with the official user information, and determined to be an illegal user's use. The client IP is inputted to the default IP address of the authorized user to receive a conflict flag setting, and if the conflict flag is set to ON, the client PC transmits the authentication request information that is collided until a new product serial number is registered. It includes a license server that refuses execution and guides the re-registration of the product serial number, the license server performs a valid authentication process even when a licensed user uses the software on a different client PC, the use of illegal users Definition of the default IP address Rated input by the user conflicts flags set through the contact is characterized by performing a copyright management of the software.

According to a preferred feature of the invention, the client PC, a plurality of software is installed, the license agent program targets a plurality of software by authenticating from the license server whether the use of the individual software by the licensed user. It is characterized in that the copyright can be managed.

In addition, the client PC has a software use DB having a data field structure including a software number, the license server IP address, a port number, the product serial number, execution criteria information of the license agent program, and an authentication success flag. It is characterized by.

In addition, the license server, the communication module for transmitting and receiving data with the client PC; A product registration module for receiving and storing the product serial number through the communication module and transmitting a processing result to the client PC; A product registration DB for storing the product serial number registered by the product registration module; Receives and stores the authentication request information through the communication module, and compares the product serial number, the conflict flag comparison, the use flag of the software, the comparison of the basic IP address, and the inquiry to the basic IP address to the authorized user. A use authentication module for determining whether to use and transmitting the result to the client PC; And a use authentication DB in which a log of the authentication request information allowed by the use authentication module is stored.

Further, the license server may be configured such that if the software is not in use, or if the software is in use and the product serial number received from the client PC exists in the product registration DB and the conflict flag is off, If the IP address is the same as the default IP address, or if the software is in use and the client PC's IP address is different from the default IP address, and a response to the default IP address is received and the response is not in use, The use of the software on the client PC is authenticated as the use of the licensed user, so that the licensee handles the licensee's use of the software even when the licensee uses the client PC with the floating IP or moves to another client PC. It is done.

The software copyright management method of a network environment of the present invention is a copyright management method for managing the copyright of software by permitting formal use of specific software in a client / server environment over a network, wherein (S10) a license server is registered from a client PC. Receiving a product serial number and a basic IP address of the software requesting the registration; (S20) receiving the authentication request information for requesting the use permission from the client PC; (S30) receiving the authentication request information from the client PC, and determining whether or not the software is used by a regular user to authenticate; (S40) receiving an end of use when the end of use of the software from the client PC; And (S50) the license server is informed of the end of use, and the step of performing a termination process.

According to a preferred feature of the invention, the step (S10), (S11) the license server receives a connection request from the client PC to perform a login process; (S12) registering the product serial number of the software and the IP address of the basic client PC to be used from the client PC; (S13) determining whether the product serial number is duplicated; (S14) in case of duplication, notifying the client PC that the duplication; (S15) if not duplicate, registering the product serial number and the default IP address in a DB; (S16) performing genuine software authentication by transmitting the IP address and port number of the license server to the client PC; And (S17) the client PC comprises storing the received IP address and port number of the license server in a DB.

In addition, the step (S30), (S31) receiving the authentication request information including the product serial number of the software and the IP address of the client PC from the client PC; (S32) determining whether the product serial number is a number registered in a DB; (S33) if not the registered number, notifying the client PC serial number is not registered; (S34) if the number is registered, determining whether a conflict occurs by using the software at the IP address; (S35) in the case of a conflict, informing the client PC that the software is already in use and in conflict; (S36) if it is not a conflict, determining whether the software is in use on the client PC; (S37) if not in use, authenticating the use of the software with the client PC; (S38) determining whether the received IP address is an address registered in a DB so as to be authorized when the IP address is in use; (S39) if the registered address, authenticating the use of the software with the client PC; (S310) if the address is not registered, inquiring whether the software is being used by the address registered in the DB; (S311) authenticating the use of the software to the client PC when a response is received that is not in use; And (S312), when receiving a response indicating that the user is in use, notifying that the authentication for the use of the software has failed, and notifying that the product serial number is to be reissued for proper use.

In addition, the software copyright management method, (S60) The license server receives a request for re-issue of the product serial number from the client PC, discarding the existing product serial number registered in the DB and registering a new product serial number By further including, when the conflict occurs in accordance with the use of the illegal user of the software is characterized in that to protect the right of use of the authorized user through the re-registration of the product registration number.

The software copyright management system of the network environment and the method according to the present invention configured as described above authenticate the product registration of the software in order to determine whether the license server legally uses the software, and the registered software is used by the authorized user every time. Use the software installed on the client PC to determine whether it is used by the PC. Therefore, it protects the rights of the copyright holder and legitimate user of the software by preventing the software from being illegally distributed and used.

Hereinafter, a preferred embodiment of the present invention including the above components will be described in more detail with reference to the accompanying drawings.

1 shows a configuration of a copyright management system 1 according to an embodiment of the present invention. The copyright management system 1 according to the present invention includes a client PC 2 and a license server 3.

The client PC 2 is provided with software 21 and a license agent 22. The license agent 22 connects to the license server 3 via a network as a kind of management program and authenticates the use of the software 21 by the licensee. A licensed user purchases a genuine copy of the software (21) online or offline. The online user registers the product serial number automatically by registering the software (21) at the same time as the purchase, and the offline user registers his or her client PC ( 2) After installing the product in accordance with the guide screen of the license agent 22 to register the product serial number.

The use of the software 21 is to be used if the registration is successful after the license agent 22 registers the software information including the product serial number input from the user and the user information including the basic IP address to the license server 3. Permit is preferred.

In particular, when a licensed user is established through registration of a product serial number, the license agent 22 authenticates from the license server 3 whether the use of the software 21 is legal or illegal in accordance with the settings of the copyright holder or the licensed user.

For example, if the copyright holder or the licensee sets the license agent 22 when to perform authentication (when the software is executed, when the software is running, or at other times), the number of times of execution, the time interval, or the like, the license agent ( 22 periodically requests the license server 3 to authenticate the use of the software 21 according to the setting criteria. If the license agent 22 is set to receive authentication from the license server 3 when executing the software 21, the execution of the software 21 itself may be disallowed due to the authentication failure.

In addition, the license agent 22 may receive a license from the license server 3 for the use of at least one software 21 installed in the client PC 2. Although it can be used by a licensed user or an illegal user on the client PC 2, once the license agent 22 receives a valid authentication from the license server 3, it is determined that the licensed user uses the software. In case of suspected illegal use, inform the authorized user of the fact and decide whether to block based on the judgment of the authorized user.

The license server 3 includes a communication module 31, a product registration module 32, a product registration DB 33, a use authentication module 34, and a use authentication DB 35.

The communication module 31 transmits and receives data to and from the license agent 22 through a network.

The product registration module 32 receives the registration request of the software 21 from the client PC 2 through the communication module 31, receives the software registration information and user information and stores it in the product registration DB 33. The software registration information authenticates the authenticity of the software when the new product serial number is not a duplicate product serial number or a discarded authentication number including the product serial number. In addition, the user information is information about a licensed user who inputs the product serial number effectively, and when a software use conflict occurs, the licensed user may be notified of the fact, and basically, of the client PC 2 in which the software 21 is used. Contains the default IP address corresponding to the IP address.

Therefore, when the use of software having the same product serial number is detected at the same time, the fact is notified to the default IP address registered by the licensee, and the conflict flag is set by the licensee. If the conflict flag is set, both the authorized user and the illegal user fail to authenticate the use until the registered user registers a new product serial number.

If licensed as a licensed user through registration of a valid product, the license server 3 transmits its connection information (ex. IP address, port number) to the client PC 2, and the client PC 2 stores this information. Whenever the software 21 is used, the license server 3 is connected to the license server 3 to authenticate whether the software 21 is officially used. Therefore, only the software 21 authorized by the authorized user through the product serial number registration can request the license server 3 to authenticate the use.

The use authentication module 33 receives a permission request of the software 21 from the client PC 2 through the communication module 31, determines whether the use is legitimate through a predetermined procedure, and grants permission to the client PC 2. Notify. Judgment criteria (shown in FIG. 3) determine whether the software 21 is registered in the product registration DB 33, whether the software 21 is already in use, and whether the registered software 21 is being used by a licensed user. Investigate and handle usage authorization.

The processing log for the use permission of the software 21 which is requested by the license agent 22 and used by the use authentication module 31 is stored in the use authentication DB 35.

2 illustrates a configuration of a management system of a distributed server environment according to another embodiment of the present invention. In FIG. 2, the software registration function handled by the license server 3 shown in FIG. 1 is built into a separate independent registration intermediation server 4.

Therefore, the client PC 2 connects to the registration intermediation server 4 to request registration of the software 21, and the registration intermediation server 4 connects to the license server 3 and handles the registration request on behalf of the client. If the registration is authenticated, the license server 3 transmits its connection information to the client PC 2 side. The client PC 2 connects to the license server 3 every time the software 21 is used on the basis of the connection information of the received license server 3 and requests the use permission.

In such a distributed environment, when the license agent 22 of the client PC 2 manages copyrights for a plurality of software 21, it is assumed that the manufacturer of each software 21 is the registration broker server 4. The registration intermediation server (software manufacturer) 4 receives the product serial number and determines whether it is valid, and if so, registers the product serial number with the license server 3. Then, the license server 3 constitutes an environment that can integrally handle use authentication of the authorized user for various software 21 of various manufacturers.

3 shows the configuration of a comparison criterion by which the license server 3 according to an embodiment of the present invention authenticates the formal use of the software 21.

The use authentication module 34 of the license server 3 is used to compare the product serial number, ii) conflict flag comparison, iii) use flag comparison, iv) The comparison of basic IP address comparison and v) basic IP address query is done in order to handle authenticating users.

i) The product serial number is recorded in the product registration DB 33 by the user registering with the license server 3 the serial number assigned to the software 21 at the time of purchase of the first software 21. The use authentication module 34 receives the use request information including the product registration number from the client PC 2 and determines whether the received product registration number is a product registration number registered in the DB by querying the use authentication DB 35. do. The unregistered registration number is notified to the client PC 2 to guide the registration of the product.

ii) The conflict flag is information indicating that a conflict has occurred between a licensed user and an illegal user using software 21 having the same product serial number. The conflict flag is set by requesting the license server 3 through the client PC 2 from the base IP address at which the corresponding software 21 is set so that the licensee is notified of the fact. Once set, the conflict flag may completely prevent the use of the conflicting software 21 or may only notify the fact that the conflict has occurred. The off of the conflict flag is set back off by the registered user re-registering the product serial number for the software 21 concerned.

iii) The use flag comparison indicates whether the corresponding software 21 is currently in use. If the use flag is set to off, the use of the software 21 is unconditionally authenticated. However, when the license server 3 receives new authentication request information from a specific client PC 2 with the use flag turned on, a collision is suspected and a more detailed comparison must be made.

iv) Comparing the basic IP address compares whether the IP address of the client PC (2) that has sent the current authentication request information while the above-mentioned usage flag is on is the basic IP address of the authorized user registered in the usage authentication DB (35). will be. If it is the same IP, the authorized user does not notify the end of the software and determines that the use flag remains on and authenticates as the authorized user. If the address is different, the user of the software already in use and the user requesting authentication are in conflict with each other, and it is necessary to determine which user is a genuine user.

v) The default IP address query, if the conflict occurs to determine the true authorized user, inquires whether the authorized user is actually using the default IP address of the user authentication DB 35 registered from the authorized user. If a response is received from the authorized user that the user is not in use, it is determined that the authorized user allows the use of the software 21 in spite of a conflict, and the user authentication is processed as valid for the new authentication request. On the other hand, when receiving a response indicating that the user is in use, it means that the authorized user disallows the current use request, sets the conflict flag to ON according to the authorized user's choice, and fails the received authentication request. Return to).

In the copyright management system 1 according to the present invention, the conflict between the use of the software by the authorized user and the illegal user must be approved by the user as the legitimate user again by discarding the conflicting product serial number and re-registering the new product serial number.

4 illustrates a data structure of a database according to an embodiment of the present invention.

The software use DB 23 is a DB built on the client PC 2 side and includes a data field consisting of a software number, a license server IP address, a port number, a product serial number, an execution standard, and an authentication success flag.

The execution criterion is composed of information such as the execution time, the number of executions, and the time interval of the license agent 22 set by the software copyright holder or the legal user.

The license server IP address and port number are connected to the server from the license server 3 after the license agent 22 requests registration of the product to the license server 3, and the product registration module 32 authorizes registration as a genuine product. The information is received and its value filled.

The authentication success flag is filled with on / off values according to the result of the license agent 22 requesting the license server 3 to use the product and determining whether the use authentication module 32 is legitimate use.

The use authentication DB 35 is a DB built on the license server 3 side and includes a data field composed of a login ID, a software number, a product serial number, a basic IP address, a use flag, and a conflict flag.

The basic IP address is information set by the authorized user and is the address of the client PC 2 mainly used by the software 21, and is an IP address notified of the fact when the illegal user is determined to be used.

The usage flag is filled with on / off values depending on whether the corresponding software 21 is currently used on the client PC 2.

The conflict flag is set when the authorized user determines that the conflict occurs when the client PC 2 having a different IP address requests the use even though the corresponding software 21 is already used in the client PC 2.

5 is a flowchart illustrating a copyright management method according to an embodiment of the present invention.

In the software and formal user registration step (S10), the license server 3 receives a registration request from the client PC 2 and registers software information and user information consisting of a product serial number and a basic IP address.

In the use permission request receiving step (S20), the license server 3 receives the authentication request information including the product serial number from the client PC (2).

In the use determination and permission step (S30), the license server 4 determines whether the current software use of the client PC (2) is a legitimate use and transmits the result.

In the use end receiving step (S40), the license server 3 is a process of receiving notification from the client PC 2 that the corresponding software 21 has been terminated. The license server 4 sets the information recorded as being in use as the end of use to effectively process the next use permission request in the use end processing step (S50).

6 shows a detailed procedure of the software registration authentication step (S10) of the license server for processing software registration authentication according to an embodiment of the present invention.

In the license server login processing step S11, the license server 3 receives a connection request from the client PC 2 and performs login processing.

In the step of receiving the product serial number and the basic IP address (S12), the license server 3 registers the product serial number of the software 21 from the client PC 2 and the IP address of the basic client PC 2 which is permitted to use it. Receive.

In the product serial number duplication determination step (S13), the license server 3 determines whether the received product serial number is already registered in the DB. In the case of a duplicate, the client PC 2 is notified that the number is already registered in the duplicate notification step S14.

If not duplicated, register the product serial number and IP address received in the DB registration step (S15) to the DB.

Next, in the server access information transmission step (S16), the license server 3 transmits its IP address and port number to the client PC (2).

Next, in the DB registration step (S17), the IP address and port number of the license server 3 received by the client PC 2 are registered in the software use DB 23, and the software 21 at a specific point in relation to its execution is performed. Reference is made when connecting to the license server 3 to obtain use authorization.

7 shows a detailed procedure of whether to use or not to determine whether to use software authentication process and the authorization step (S30) according to an embodiment of the present invention.

In the step of receiving software authentication request information (S31), the license server 3 receives the authentication request information including the product serial number of the software 21 and the IP address of the client PC 2 from the client PC 2.

In the product serial number determination step (S32), the license server 3 determines whether the serial number received is a number already registered in the DB. If it is determined that it is not a registered number, in the registration notification step (S33), a notice message for registering the product serial number of the software is notified to the client PC (2).

If it is determined that it is a valid serial number registered in the DB, it is determined in the collision determination step S34 whether the current software 21 is used in the client PC 2 and the collision flag is set to on. In the case of a collision, in a collision notification step S35, a message is transmitted to the client PC 2 that another user is currently using the software 21. Here, in the case of transmitting the authentication request information during the operation according to the design of the software 21 and receiving a response from the license server 3 as a collision, the use thereof may be restricted.

If it is not a conflict, in the software use determination step S36, the license server 3 queries the use flag to determine whether the software 21 is currently in use. If not in use, the use of the software 21 on the client PC 2 in the use permission step S37 is authorized to be legitimate use. Therefore, when the use flag is off, both the regular user and the illegal user can use the software 21 regardless of the IP address of the client PC 2. However, an illegal user may temporarily use the software 21, but may be denied use by a regular user in the event of a conflict with another user. In addition, this provides the advantage that the authorized user can be authenticated as the authorized user on another client PC other than the client PC 2 to which the basic IP address is assigned.

If it is in use, it is determined whether the IP address of the current client PC 2 received in the address comparison step S38 is a basic IP address registered in the DB to allow the use. In the case of the registered basic IP address, it is judged as legitimate use in the permission stage (S39), and the use of the client PC 2 software 21 is permitted. This is because a licensee may not turn off the usage flag due to an abnormal termination of the software while the licensee is using the software at the default IP address.

If the address is not registered, the license server 3 determines whether a conflict has occurred in the use inquiry step (S310), and inquires whether the software 21 is being used by the default IP address registered in the DB.

If a response is received that is not in use, the use of the software 21 is permitted to the client PC 2 in the licensing step S311. This case is to support the case where the user uses the floating IP or the multiple copies of the software 21 in the plurality of client PC (2).

If, in response to receiving a response indicating that it is in use, the use authentication failure notification step (S312) sets the conflict flag to the on value and the use flag to the off value. Then, the client PC 2 is notified of the authentication failure that the use of the software 21 is not a legitimate use. The setting of the conflict flag by the authorized user is considered to be able to impose sanctions on the illegal use of the software 21 not intended by the authorized user.

In particular, when only one-way communication to the license server 3 is possible as the firewall setting or the security reason or other reason in the client PC 2, the user authentication failure notification is not performed immediately without performing the above-mentioned usage inquiry step (S310). It is also possible to perform step S312.

If the conflict flag is set by the licensed user or the product serial number is registered by another user and the licensed user becomes an illegal user, the licensed user may be reissued the product serial number again (S60). When requesting reissue by connecting to license server 3 using license agent 22 of client PC 2, product registration module 32 discards the current product serial number registered in product registration DB 33. And register the newly received product serial number (S60).

As described above, an embodiment of a software copyright management system and method thereof in a network environment according to the present invention is constructed. Although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the claims to be described below by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents.

The software copyright management system and method thereof in a network environment according to the present invention have an effect of prohibiting illegal use of software by establishing a license server to perform product authentication and formal user authentication of software installed on a client PC.

In addition, it protects the rights of copyright holders and licensees of the software by preventing illegal use through a stepwise comparison process such as product serial number, conflict, execution, IP address comparison and inquiries of legitimate users.

Claims (9)

In the copyright management system for managing the copyright of the software by authenticating the authorized user of the specific software in the client / server environment over the network, User information including the product serial number of the specific software and the primary IP address of the licensee is transmitted to be registered as a licensed user, and authentication request information including the product serial number is transmitted for the use of the software. A client PC on which an authorized license agent program is installed; And If the user information is received from the client PC through the network and the product serial number is valid, the official user information is registered. If the authentication request information is received, it is determined that the illegal user is used through comparison with the official user information. A license that guides re-registration of the product serial number for the conflicting software until the new flag is registered when the conflict flag is set by inquiring the primary IP address of a licensee, and the conflict flag is set on. server Consisting of, The license server performs a valid authentication process even when a licensed user uses the software on a different client PC, and the illegal user receives a conflict flag setting through an inquiry to a licensed user of the default IP address. A software copyright management system in a network environment, characterized by performing copyright management. The method of claim 1, The client PC, A plurality of software is installed, and the license agent program is capable of managing copyrights for a plurality of software by authenticating from the license server whether the use of the software is by a licensed user. Software copyright management system. The method according to claim 1 or 2, The client PC, A software use DB having a data field structure including a software number, the license server IP address, a port number, the product serial number, the execution standard information of the license agent program, and an authentication success flag is constructed. Software Copyright Management System. The method of claim 1, The license server, Communication module for transmitting and receiving data with the client PC; A product registration module for receiving and storing the product serial number through the communication module and transmitting a processing result to the client PC; A product registration DB for storing the product serial number registered by the product registration module; Receives and stores the authentication request information through the communication module, and compares the product serial number, the conflict flag comparison, the use flag of the software, the comparison of the basic IP address, and the inquiry to the basic IP address to the authorized user. A use authentication module for determining whether to use and transmitting the result to the client PC; And User authentication DB that stores the log of the authentication request information allowed by the user authentication module Software copyright management system of a network environment comprising a. The method according to claim 1 or 4, The license server, With the product serial number received from the client PC in the product registration DB and the conflict flag set off, If the software is not in use, Or if the software is in use and the IP address of the client PC is the same as the default IP address, Or when the software is in use and the client PC's IP address is different from the default IP address, and a response to the default IP address is received and the response is not in use, By authenticating that the use of the software on the client PC is the use of the licensed user, the licensee can handle the authentication of the licensee's software use even when the licensee uses the client PC with the floating IP or moves to another client PC. Software copyright management system of the network environment characterized in that. In the copyright management method to manage the copyright of the software by allowing the formal use of the specific software in the client / server environment over the network, (S10) the license server receives the product serial number and the primary IP address of the software requesting registration from the client PC to register as a full user; (S20) receiving the authentication request information for requesting the use permission from the client PC; (S30) receiving the authentication request information from the client PC, and determining whether or not the software is used by a regular user to authenticate; (S40) receiving an end of use when the end of use of the software from the client PC; And (S50) the license server is notified of the end of use to perform a termination process Software copyright management method of a network environment comprising a. The method of claim 6, The step (S10), (S11) the license server receiving an access request from the client PC and performing a login process; (S12) registering the product serial number of the software and the IP address of the basic client PC to be used from the client PC; (S13) determining whether the product serial number is duplicated; (S14) in case of duplication, notifying the client PC that the duplication; (S15) if not duplicate, registering the product serial number and the default IP address in a DB; (S16) performing genuine software authentication by transmitting the IP address and port number of the license server to the client PC; And (S17) the client PC storing the received IP address and port number of the license server in the DB Software copyright management method of a network environment comprising a. The method of claim 6, The step (S30), (S31) receiving the authentication request information including the product serial number of the software and the IP address of the client PC from the client PC; (S32) determining whether the product serial number is a number registered in a DB; (S33) if not the registered number, notifying the client PC serial number is not registered; (S34) if the number is registered, determining whether a conflict occurs by using the software at the IP address; (S35) in the case of a conflict, informing the client PC that the software is already in use and in conflict; (S36) if it is not a conflict, determining whether the software is being used on another client PC; (S37) if not in use, authenticating the use of the software with the client PC; (S38) determining whether the received IP address is an address registered in a DB so as to be authorized when the IP address is in use; (S39) if the registered address, authenticating the use of the software with the client PC; (S310) if the address is not registered, inquiring whether the software is being used by the address registered in the DB; (S311) authenticating the use of the software to the client PC when a response is received that is not in use; And (S312) when receiving a response indicating that the user is in use, notifying that the authentication for use of the software has failed, and notifying that the product serial number is to be reissued for proper use. Software copyright management method of a network environment comprising a. The method of claim 6, (S60) The license server receives a request for re-issue of the product serial number from the client PC, discarding the existing product serial number registered in the DB and registering a new product serial number By further including, when the conflict occurs in accordance with the use of the illegal user of the software software copyright management method of a network environment, characterized in that to protect the license of the authorized user through the re-registration of the product registration number.

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