WO2014088241A1

WO2014088241A1 - Method for mobile instant messaging service utilizing personal computer

Info

Publication number: WO2014088241A1
Application number: PCT/KR2013/010443
Authority: WO
Inventors: 정기주; 표종훈
Original assignee: (주)카카오
Priority date: 2012-12-07
Filing date: 2013-11-18
Publication date: 2014-06-12
Also published as: KR20140073771A; JP5940745B2; KR101487583B1; JP2016501412A

Abstract

Disclosed is a method for an instant messaging service of a mobile terminal which relays a message between a personal computer and an instant message server. The mobile terminal according to one embodiment can deliver a message received from the instant message server to a pre-authenticated personal computer and deliver the message received from the pre-authenticated personal computer to the instant message server.

Description

How to use mobile instant messaging service using personal computer

The following embodiments relate to a mobile instant messaging service method utilizing a personal computer, and more particularly, to an instant messaging service method of a mobile terminal relaying a message between a personal computer and an instant message server.

An instant messaging service is a service that supports two or more instant (real-time) text communications over a network, such as the Internet. An instant messenger is a client that relays instant messages. Instant messaging services differ from e-mail services in that they communicate in real time. Each time a person enters a line with each other, the transmission takes place, so it's more like having a phone conversation than exchanging letters.

Mobile instant messaging service is an instant messaging service provided through a mobile terminal such as a smart phone. Recently, as the number of users of mobile instant messaging services has soared, the demand for providing mobile instant messaging services from personal computers is increasing.

An instant messaging service method of a mobile terminal according to one side comprises the steps of receiving a received message from an instant message server; Transmitting the received message to a pre-authenticated personal computer (PC) in response to receiving the received message; Receiving a transmission message from the pre-authenticated personal computer; And transmitting the transmission message to the instant message server in response to receiving the transmission message.

At this time, the instant messaging service method of the mobile terminal comprises the steps of: authenticating the personal computer using a first key shared between the instant message server, the mobile terminal, and the personal computer; Generating a second key distinct from the first key when the authentication is performed successfully; And sharing the second key between the mobile terminal and the personal computer.

The method may further include encrypting the received message using the second key, wherein the received message may include the encrypted received message in the transmitting of the received message. Can be.

The method may further include decrypting the transmission message using the second key, and encrypting the transmission message using the second key in receiving the transmission message. May include a sent message.

In addition, the instant messaging service method of the mobile terminal comprises the steps of: receiving a connection status confirmation signal transmitted every predetermined period from the pre-authenticated personal computer; And maintaining a connection with the pre-authenticated personal computer when the connection status confirmation signal is received.

The instant messaging service method of the mobile terminal may further include transmitting a connection status reconfirmation signal to the pre-authenticated personal computer when the connection state confirmation signal transmitted from the pre-authenticated personal computer is not received until a predetermined period elapses. ; And when the response signal to the connection status reconfirmation signal is not received from the pre-authenticated personal computer, terminating the connection with the pre-authenticated personal computer.

The instant messaging service method of the mobile terminal may further include receiving a request signal for the mobile terminal related information from the instant message server; And in response to receiving the request signal, transmitting a response signal including the mobile terminal related information to the instant message server, wherein the instant message server requests the request according to a request of the pre-authenticated personal computer. Transmitting a signal, and transmitting the mobile terminal related information to the pre-authenticated personal computer in response to receiving the response signal.

The instant messaging service method of the mobile terminal may further include transmitting a chat history to the personal computer when the authentication is successfully performed. The chat history may include a list of participating chat rooms or a list of participating chat rooms. It may include at least one of the conversation history.

The instant messaging service method of the mobile terminal may further include determining whether the pre-authenticated personal computer exists; Or checking at least one connection state with the pre-authenticated personal computer, and wherein the transmitting of the received message includes whether to transmit the received message according to at least one of the determination result and the verification result. Determining may include.

In another aspect, an operating method of a personal computer (PC) interworking with a mobile terminal for an instant messaging service includes: receiving a received message from the mobile terminal; Displaying the received message in response to the receiving; Providing an interface for receiving a transmission message; And transmitting the transmission message to the mobile terminal in response to the input through the interface.

In this case, the operation method of the personal computer may include requesting authentication to the mobile terminal using a first key shared between an instant message server, the mobile terminal, and the personal computer; And receiving a second key distinguished from the first key from the mobile terminal, wherein the mobile terminal may generate the second key when the authentication is successfully performed.

The method may further include decrypting the received message using the second key. In the receiving of the received message, the received message may be encrypted using the second key. And a message, and in the displaying of the received message, the received message may include the decrypted received message.

The method may further include encrypting the transmission message using the second key. In the transmitting of the transmission message, the transmission message may include an encrypted transmission message.

The method of operating the personal computer may further include transmitting a connection status confirmation signal to the mobile terminal at predetermined intervals or in response to a request of the mobile terminal; And receiving a connection maintenance signal including the IP of the mobile terminal from the mobile terminal.

The method of operating the personal computer may further include: requesting mobile terminal related information from an instant message server when the connection maintenance signal is not received from the mobile terminal; And receiving the mobile terminal related information from the instant message server, wherein the instant message server may obtain the mobile terminal related information from the mobile terminal in response to the request.

1 is a diagram illustrating a system for providing an instant messaging service according to an embodiment.

2 is a flowchart illustrating an instant messaging service method of a mobile terminal and an operating method of a personal computer according to an exemplary embodiment.

3 is a flowchart illustrating an authentication method of a personal computer using a first key and an encryption / decryption method of a message using a second key, according to an exemplary embodiment.

4 is a diagram for describing a method for checking a connection state between a mobile terminal and a personal computer according to an exemplary embodiment.

5 is a diagram for describing a method of requesting, by a personal computer, an IP of a mobile terminal from an instant message server, according to an exemplary embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a system for providing an instant messaging service according to an exemplary embodiment.

Referring to FIG. 1, a system for providing an instant messaging service according to an embodiment includes an instant message server 130, a mobile terminal 110, and a personal computer 120. Hereinafter, the instant messaging service may include a mobile instant messaging service. The personal computer 120 is connected to the mobile terminal 110 by wire or wirelessly to provide an instant messaging service. For example, the personal computer 120 may include a desktop computer, a laptop computer, a tablet computer, and the like.

Here, the mobile terminal 110 may communicate with the instant message server 130 to provide an instant messaging service. More specifically, the mobile terminal 110 may provide an instant messaging service using an instant message application interworking with the instant message server 130.

The instant message server 130 may transmit a message transmitted from the mobile terminal 110 to another user, and transmit a message received from the other user to the mobile terminal 100.

At this time, when the user of the mobile terminal 110 is using the personal computer 120 (for example, when the user surfs the Internet using a PC at home, or at work in the office using a PC) In addition, the user may want to receive an instant messaging service through the personal computer 120 instead of the mobile terminal 110.

In this case, the mobile terminal 110 may transfer an instant message between the instant message server 130 and the personal computer 120. For example, the mobile terminal 110 may act as a proxy server for relaying between the instant message server 130 and the personal computer 120.

More specifically, the message transmitted by the instant message server 130 is transmitted to the personal computer 120 via the mobile terminal 110, and the message transmitted by the personal computer 120 also passes through the mobile terminal 110. Is sent to the instant message server 130.

As such, by eliminating direct communication between the instant message server 130 and the personal computer 120 and adopting a message exchange method through the mobile terminal 110, the instant messaging service method according to an embodiment reduces the number of communication and enhances security. Various effects can be obtained.

For example, when an instant message server and a personal computer communicate directly, the instant message server must send a message to both the personal computer and the mobile terminal. On the other hand, the instant message server 130 according to an embodiment may transmit a message only to the mobile terminal 110 regardless of whether the user wants to receive an instant messaging service using the personal computer 120. For this reason, the number of times of communication of the instant message server 130 may be reduced.

In addition, as will be described in detail below, the instant messaging service method according to the embodiment performs communication based on the authentication of the personal computer 120, so that security can be enhanced compared to the existing password input method.

For example, the instant messaging service method according to an embodiment may be configured to authenticate the personal computer 120 using a first key shared between the instant message server 130, the mobile terminal 110, and the personal computer 120. If successful, the second key may be shared between the personal computer 120 and the mobile terminal 110. The personal computer 120 and the mobile terminal 110 may respectively encrypt / decrypt messages transmitted and received using a second key.

2 is a flowchart illustrating an instant messaging service method of a mobile terminal and an operating method of a personal computer, according to an exemplary embodiment.

Referring to FIG. 2, the mobile terminal 210 according to an embodiment may receive a received message from the instant message server 230 (211). Here, the received message may include an instant message transmitted from another user to the user of the mobile terminal 210.

The mobile terminal 210 may transmit the received message to the personal computer 220 in response to receiving the received message (212). Here, it is assumed that the personal computer 220 has been successfully authenticated by the mobile terminal 210 in advance. The authentication process between the mobile terminal 210 and the personal computer 220 will be described in detail below. Hereinafter, the personal computer 220 may include a personal computer previously authenticated by the mobile terminal 210.

The personal computer 220 may receive a received message from the mobile terminal 210 (221). The personal computer 220 may display the received message in response to receiving the received message (222).

In addition, the personal computer 220 may provide an interface for receiving a transmission message (223). When the user inputs the transmission message using the interface, the personal computer 220 may transmit the transmission message to the mobile terminal 210 in response to the input (224).

The mobile terminal 210 may receive a transmission message from the personal computer 220 (213), and transmit the transmission message to the instant message server 230 in response to the reception of the transmission message (214).

Although not shown, the mobile terminal 210 according to another embodiment uses the first key shared between the instant message server 230, the mobile terminal 210, and the personal computer 220. Can be authenticated.

Here, the method in which the first key is shared between the instant message server 230, the mobile terminal 210, and the personal computer 220 may be implemented in various ways.

For example, the personal computer 220 may transmit a signal for requesting interworking with the mobile terminal 210 to the instant message server 230. The instant message server 230 may generate a first key in response to the interworking request signal of the personal computer 220, and share the generated first key with the mobile terminal 210 and the personal computer 220.

The mobile terminal 210 can exchange necessary information with the instant message server 230 to authenticate the personal computer 220 using the first key.

For example, the personal computer 220 may receive a password of an instant message application installed in the mobile terminal 210 from the user. The personal computer 220 may encrypt the input password using the first key and then transmit the encrypted information to the mobile terminal 210. The mobile terminal 210 can extract the password by decrypting the encrypted information using the first key. In addition, the mobile terminal 210 may transmit a signal for checking whether the extracted password is the correct password to the instant message server 230.

When the authentication of the personal computer 220 using the first key is successfully performed, the mobile terminal 210 may generate a second key distinguished from the first key. The mobile terminal 210 may share the generated second key with the personal computer 220.

The mobile terminal 210 and the personal computer 220 may encrypt or decrypt messages transmitted and received to each other using the shared second key.

For example, the mobile terminal 210 may encrypt the received message received from the instant message server 230 using the second key. In this case, the mobile terminal 210 may transmit the received message encrypted using the second key to the personal computer 220.

When the personal computer 220 receives the encrypted received message, the personal computer 220 may decrypt the encrypted received message using the second key. In addition, the personal computer 220 may encrypt the transmission message input through the interface using the second key. In this case, the personal computer 220 may transmit the transmission message encrypted using the second key to the mobile terminal 210. When the mobile terminal 210 receives the encrypted transmission message, the mobile terminal 210 may decrypt the encrypted transmission message using the second key and then transmit the decrypted transmission message to the instant message server 230.

The mobile terminal according to another embodiment may determine whether there is a personal computer previously authenticated. In addition, the mobile terminal may check the connection state with the personal computer in accordance with the determination that there is a personal computer that is previously authenticated. In this case, the mobile terminal may make a decision to transmit the received message to the personal computer in accordance with the determination that there is a personal computer that is previously authenticated and connected with the personal computer.

Referring to FIG. 3, in operation 311, a personal computer may request a download of a client for a personal computer from an instant message server. The instant message server may provide the client to the personal computer in response to the download request (312).

The personal computer may then transmit 313 the first authentication request signal to an instant message server. At this time, the signal may include a PC name set by the user and an account of the instant messaging service (for example, the ID of the instant messaging service provided by the mobile terminal).

When the instant message server receives the first authentication request signal from the personal computer, the instant message server may generate the first key and the unique PC ID and then store the generated information in the database along with the received PC name (314).

The instant message server can share the first key with the mobile terminal and the personal computer. For example, the instant message server may issue 315 a first key to the mobile terminal using an account of the instant messaging service. In this case, the instant message server may transmit not only the first key but also the unique PC ID and PC name.

In addition, the instant message server may issue a first key to the personal computer using a client installed in the personal computer (316). In this case, the instant message server may transmit not only the first key but also the unique PC ID and PC name.

When the mobile terminal receives the first key, the mobile terminal may broadcast an IP of the mobile terminal on a network of the same band (318). For example, assume that a mobile terminal is provided with wireless Internet by an access point (AP). In this case, the mobile terminal can broadcast the IP of the mobile terminal on the wireless network formed by the access point.

If the personal computer is located on a network of the same band as the mobile terminal, the personal computer can receive the broadcasted mobile terminal's IP. The personal computer may transmit a second authentication request signal including the first key using the IP of the mobile terminal (319). Here, the second authentication request signal may further include an IP of a personal computer and a password of an instant messaging service.

The mobile terminal can authenticate the personal computer based on the first key received from the personal computer. For example, the mobile terminal may compare whether the first key received from the instant message server and the first key received from the personal computer are the same. In operation 320, the mobile terminal may request a password authentication to the instant message server using the password of the instant messaging service received from the mobile terminal according to the determination that the two keys are the same.

When receiving a response from the instant message server that password authentication has been successfully performed (321), the mobile terminal may generate a second key distinct from the first key (322). The mobile terminal can issue a second key to the personal computer (323), and the personal computer can store a second key issued from the mobile terminal (324).

When receiving a received message sent from another user, the instant message server may transmit the received message to the mobile terminal (325). The mobile terminal encrypts the received message using the second key and then transmits the encrypted received message to the personal computer (326). In this case, since the personal computer stores the second key, it is possible to decrypt the encrypted received message. The personal computer may display the decrypted received message.

In addition, when a transmission message is input from the user, the personal computer may encrypt the transmission message using the second key and then transmit the encrypted transmission message to the mobile terminal (327). In this case, since the mobile terminal stores the second key, the mobile terminal can decrypt the encrypted transmission message. The mobile terminal can transmit the decrypted transmission message to the instant message server (328).

Although not shown in the drawings, the mobile terminal according to another embodiment may transmit a chat history to the personal computer after issuing a second key to the personal computer (323). Here, the chat history may include at least one of a list of chat rooms in which the user of the mobile terminal is participating or a chat history of each chat room in the instant messaging service.

Accordingly, the mobile terminal can provide a technology that enables the personal computer to check not only the newly transmitted and received messages but also the previously transmitted and received messages after the authentication with the personal computer is successfully performed.

Referring to FIG. 4, a mobile terminal according to an embodiment may receive a connection status confirmation signal transmitted from a personal computer at predetermined intervals (413). For example, the personal computer may broadcast the signal on a network of the same band at predetermined intervals.

When the mobile terminal receives the connection status confirmation signal from the personal computer, the mobile terminal can maintain the connection with the personal computer. For example, the mobile terminal may transmit a response signal including the IP of the mobile terminal to the personal computer in response to receiving the connection status confirmation signal (414).

If the connection status confirmation signal transmitted from the personal computer is not received until the predetermined period elapses (415), the mobile terminal may transmit the connection status reconfirmation signal to the personal computer (416).

If the mobile terminal does not receive a response signal to the connection status reconfirmation signal from the personal computer (417), the mobile terminal may terminate the connection with the personal computer (418).

Meanwhile, the personal computer may transmit a connection status confirmation signal for reconnection with the mobile terminal (411).

For example, assume that the personal computer has completed the authentication process described above with reference to FIGS. In this case, the personal computer stores the second key shared with the mobile terminal. Therefore, the personal computer does not have to go through the authentication process again.

With the connection between the personal computer and the mobile terminal terminated, the user may wish to reconnect between the personal computer and the mobile terminal. In this case, the personal computer may transmit a connection status confirmation signal to the mobile terminal. The personal computer can transmit the signal to the mobile terminal by broadcasting a connection status confirmation signal on the network of the same band.

When receiving the connection status confirmation signal from the personal computer, the mobile terminal can reconnect to the personal computer by sending a response signal including the IP of the mobile terminal to the personal computer (412).

Referring to FIG. 5, a personal computer according to an embodiment may transmit a connection status confirmation signal to a mobile terminal (511). Since details described with reference to FIG. 4 may be applied to the transmission of the connection status confirmation signal, a detailed description thereof will be omitted.

Meanwhile, the personal computer may not receive a connection maintenance signal including the IP of the mobile terminal from the mobile terminal (512). In this case, the personal computer may request mobile terminal related information from the instant message server (513).

According to an embodiment, the personal computer may request an IP of the mobile terminal from an instant message server. The instant message server may obtain an IP of the mobile terminal from the mobile terminal in response to a request of the personal computer.

For example, the instant message server may transmit 514 an IP request signal of the mobile terminal to the mobile terminal. In response to receiving the IP request signal, the mobile terminal may transmit a response signal including the IP of the mobile terminal to the instant message server (515).

The instant message server may send 516 the mobile terminal's IP to the personal computer. In this case, the personal computer may connect with the mobile terminal using the IP of the mobile terminal provided from the instant message server.

According to another exemplary embodiment, when the personal computer does not receive the connection maintenance signal including the IP of the mobile terminal from the mobile terminal, the personal computer may request the location of the mobile terminal from the instant message server. In this case, the instant message server may obtain the location of the mobile terminal from the mobile terminal in response to a request of the personal computer. The personal computer may receive the location of the mobile terminal from the instant message server. Accordingly, the instant messaging service according to an embodiment may provide a technique for tracking the location of the mobile terminal when the user loses the mobile terminal.

The method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Although the embodiments have been described by the limited embodiments and the drawings as described above, various modifications and variations are possible to those skilled in the art from the above description. For example, the described techniques may be performed in a different order than the described method, and / or components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different form than the described method, or other components. Or even if replaced or substituted by equivalents, an appropriate result can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are within the scope of the claims that follow.

Claims

In the instant messaging service method of a mobile terminal,

Authenticating the personal computer using a first key shared between an instant message server, the mobile terminal, and a personal computer (PC);

Generating a second key distinct from the first key when the authentication is performed successfully;

Sharing the second key between the mobile terminal and the authenticated personal computer;

Receiving a received message from the instant message server;

Transmitting the received message to the authenticated personal computer using the second key in response to receiving the received message;

Receiving a transmission message from the authenticated personal computer using the second key; And

Sending the transmission message to the instant message server in response to receiving the transmission message

Instant messaging service method of a mobile terminal comprising a.
The method of claim 1,

Encrypting the received message using the second key; And

Decrypting the transmission message using the second key

More,

In the transmitting of the received message, the received message includes the encrypted received message, and in the receiving of the transmitted message, the transmitted message includes a transmitted message encrypted using the second key. How instant messaging services work.
The method of claim 1,

Receiving a connection status confirmation signal transmitted from the authenticated personal computer at predetermined intervals;

Maintaining a connection with the authenticated personal computer when the connection status confirmation signal is received;

Transmitting a connection status reconfirmation signal to the authenticated personal computer when the connection status confirmation signal is not received such that the predetermined period elapses; And

Terminating the connection with the authenticated personal computer if a response signal to the connection status reconfirmation signal is not received from the authenticated personal computer;

Instant messaging service method of the mobile terminal further comprising.
The method of claim 1,

Receiving a request signal for the mobile terminal related information from the instant message server; And

In response to receiving the request signal, transmitting a response signal including the mobile terminal related information to the instant message server.

More,

The instant message server transmits the request signal in response to a request of the authenticated personal computer, and sends the mobile terminal related information to the authenticated personal computer in response to receiving the response signal. .
The method of claim 1,

Sending a chat history to the personal computer if the authentication is successful.

More,

And the chat history comprises at least one of a list of participating chat rooms or a conversation history in a participating chat room.
The method of claim 1,

Determining whether the authenticated personal computer exists; or

Checking a connection state with the authenticated personal computer

At least one of,

The step of transmitting the received message

Determining whether to transmit the received message according to at least one of the determination result or the confirmation result;

Instant messaging service method of a mobile terminal comprising a.
In the method of operation of a personal computer (PC) linked with a mobile terminal for an instant messaging service,

Requesting authentication to the mobile terminal using a first key shared between an instant message server, the mobile terminal, and the personal computer;

Receiving a second key distinguished from the first key from the mobile terminal;

Receiving a received message from the mobile terminal using the second key;

Displaying the received message in response to the receiving;

Providing an interface for receiving a transmission message; And

Transmitting the transmission message to the mobile terminal using the second key in response to the input through the interface

And wherein the mobile terminal generates the second key when the authentication is successfully performed.
The method of claim 7, wherein

Decrypting the received message using the second key; And

Encrypting the transmission message using the second key

More,

In the receiving of the received message, the received message includes a received message encrypted using the second key, and in the displaying of the received message, the received message includes the decrypted received message and the transmission And in the step of transmitting the message, said transmission message comprises an encrypted transmission message.
The method of claim 7, wherein

Transmitting a connection status confirmation signal to the mobile terminal at predetermined intervals or in response to a request of the mobile terminal; And

Receiving a connection maintenance signal including an IP of the mobile terminal from the mobile terminal

Operation method of a personal computer further comprising.
The method of claim 9,

Requesting the mobile terminal related information from an instant message server when the connection maintenance signal is not received from the mobile terminal; And

Receiving the mobile terminal related information from the instant message server

More,

And the instant message server obtains the mobile terminal related information from the mobile terminal in response to the request.
A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 10.