CN108777655A

CN108777655A - A kind of instant communication method and its device, equipment, storage medium

Info

Publication number: CN108777655A
Application number: CN201810457729.XA
Authority: CN
Inventors: 叶华鑫
Original assignee: Shenzhen Pocket Network Technology Co Ltd
Current assignee: Shenzhen Pocket Network Technology Co Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2018-11-09
Anticipated expiration: 2038-05-14
Also published as: CN108777655B

Abstract

A kind of instant communication method of offer of the embodiment of the present invention and its device, equipment, storage medium, wherein the method includes：Obtain the first information to be sent；The first watermark information is added in the first information, obtains the second information；Wherein, first watermark information is hidden in second information；First watermark information includes the identification information of transmitting terminal, or, first watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal；Second information is sent to receiving terminal.

Description

A kind of instant communication method and its device, equipment, storage medium

Technical field

The present invention relates to instant messaging technical field more particularly to a kind of instant communication method and its device, equipment, storages Medium.

Background technology

The prevalence of instant messaging at present (Instant Messaging, IM) tool, greatly enriches people communication side Formula brings facility to the work and life of people.But the characteristics of being easy to copy propagation due to electronic information, it also results in The sensitive information leakage exchanged on immediate communication tool, brings safety accident.For example, Project Director is on IM and project team member The bid item of communication is replicated by malicious person and is transmitted to rival；Disclosed in unsuitable outside of the leader on IM group Speech, is dealt by sectional drawing on network.Such event, more and more appearance bring puzzlement to information security.

The reason of leakage of information typically user by be information on IM replicate, forwarding or sectional drawing chat record, Then it issues invalid information outside and bears main body.And modern IM tools to it is this it is outer be distributed as not providing any information with Track means can not also trace back to blabber after leakage of information.This has resulted in divulging a secret very convenient, and it is extremely difficult to call to account Circumstances.

Invention content

In view of this, a kind of instant communication method of offer of the embodiment of the present invention and its device, equipment, storage medium, pass through Watermark information is added in the information of transmission, so as to the quickly and accurate person that tracks outgoing messages according to watermark information.

What the technical solution of the embodiment of the present invention was realized in：

The embodiment of the present invention provides a kind of instant communication method, the method includes：

Obtain the first information to be sent；

The first watermark information is added in the first information, obtains the second information；First watermark information is hidden in In second information；First watermark information includes the identification information of transmitting terminal, or, first watermark information includes institute State the identification information of group belonging to transmitting terminal and receiving terminal；

Second information is sent to receiving terminal.

Receiving terminal receives the second information for including the first watermark information；

If detecting trigger event, other receiving terminals for receiving the second information are determined according to the trigger event；

The second watermark information is added in second information, obtains third information；Wherein, the second watermark information packet The identification information of other receiving terminals of the second information is included, and second watermark information is hidden in the third information；

The third information is sent to the receiving terminal of second information.

The embodiment of the present invention provides a kind of instant communication device, and described device includes：Acquisition module, the first add module and Output module, wherein：

The acquisition module, for obtaining the first information to be sent；

First add module obtains the second information for adding the first watermark information in the first information；Its In, first watermark information is hidden in second information；First watermark information includes the identification information of transmitting terminal, Or, first watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal；

The output module, for second information to be sent to receiving terminal.

The embodiment of the present invention provides a kind of instant communication device, and described device includes：Receiving module, detection module, second Add module and sending module, wherein：

The receiving module receives the second information for including the first watermark information for receiving terminal；

If the detection module determines according to the trigger event for detecting trigger event and receives the second information Other receiving terminals；

Second add module obtains third information for adding the second watermark information in second information；Its In, second watermark information includes the identification information of other receiving terminals of the second information, and second watermark information is hidden In the third information；

The sending module, the receiving terminal for the third information to be sent to second information.

The embodiment of the present invention provides a kind of instant messaging equipment, including memory and processor, the memory are stored with The computer program that can be run on a processor, the processor are realized when executing described program in above-mentioned instant communication method The step of.

The embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, the computer The step weighed in above-mentioned instant communication method is realized when program is executed by processor.

A kind of instant communication method of offer of the embodiment of the present invention and its device, equipment, storage medium, wherein first, obtain The first information to be sent；Then, the first watermark information is added in the first information, obtains the second information；Wherein, described First watermark information is hidden in second information；First watermark information includes the identification information of transmitting terminal, or, described First watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal；Finally, second information is sent to Receiving terminal；In this way, by adding watermark information in the information of transmission, so as to be chased after quickly and accurately according to watermark information Track is to outgoing messages person.

Description of the drawings

Figure 1A is the schematic diagram of the network architecture of the embodiment of the present invention；

Figure 1B is the schematic diagram of the network architecture of the embodiment of the present invention；

Fig. 1 C are the flow diagram that the embodiment of the present invention adds watermark information；

Fig. 1 D are the flow diagram that the embodiment of the present invention extracts watermark information；

Fig. 2A is the implementation process schematic diagram of instant communication method of the embodiment of the present invention；

Fig. 2 B are the schematic diagram of the end-to-end independent architectures of communication networks of the embodiment of the present invention；

Fig. 2 C are the schematic diagram of the another network architecture of the embodiment of the present invention；

Fig. 3 A are the interaction schematic diagram that the embodiment of the present invention realizes instant communication method；

Fig. 3 B are the schematic diagram of the another end-to-end independent architectures of communication networks of the embodiment of the present invention；

Fig. 3 C are the schematic diagram of another network architecture of the embodiment of the present invention；

Fig. 4 A are another interactive schematic diagram that the embodiment of the present invention realizes instant communication method；

The schematic diagram of Fig. 4 B group communication network architectures between client of the embodiment of the present invention；

Fig. 4 C are the schematic diagram of another network architecture of the embodiment of the present invention；

Fig. 4 D are the schematic diagram of the another network architecture of the embodiment of the present invention；

Fig. 5 is the schematic diagram of a scenario that the embodiment of the present invention sends the message with watermark information；

Fig. 6 is the schematic diagram of a scenario that the embodiment of the present invention realizes One-to-one communication；

Fig. 7 is the flow diagram that the embodiment of the present invention realizes One-to-one communication；

Fig. 8 is the flow diagram that the embodiment of the present invention realizes group communication；

Fig. 9 is the composed structure schematic diagram of instant communication device of the embodiment of the present invention；

Figure 10 is a kind of hardware entities schematic diagram of instant messaging equipment in the embodiment of the present invention.

Specific implementation mode

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the specific technical solution of invention is described in further detail.Following embodiment does not have to for illustrating the present invention To limit the scope of the invention.

Figure 1A is the schematic diagram of the network architecture of the embodiment of the present invention, and as shown in Figure 1A, which includes the first client End 11 and the second client 12, wherein installed in the mobile device of the mobile device of the first client 11 and the second client 12 There is instant messaging to apply and be used as client, the first client 11 and the second client 12 can carry out Instant Messenger with other clients News, the first client 11 and the second client 12 can be direct progress interacting messages in embodiments of the present invention.It is described instant Communication applications are used to carry out instant messaging with other users.

Figure 1B is the schematic diagram of the another network architecture of the embodiment of the present invention, and as shown in Figure 1B, which includes first Client 13, the second client 14, server 15, wherein the first client 13 and the second client 14 are equipped with instant messaging Using the first client 13 and the second client 14 can carry out instant messaging with other clients.Server 15 is Instant Messenger News apply corresponding server.First client 13 and the second client 14 carry out interacting message by server 15.

After the second client 14 receives message, user may carry out outgoing to the message, if information is machine Ciphertext part, then being possible to the information for causing the leakage of information, however being sent in being applied according to instant messaging can not look into Blabber is found, this has resulted in being easy to divulge a secret by instant messaging application, is but difficult the problem of tracking blabber.

To solve the above problems, the embodiment of the present invention provides a kind of instant communication method, by information to be sent with The form of digital watermarking adds identification information so that blabber can be tracked according to watermark information when information leakage, in order to more It is good that the digital watermark method provided in the embodiment of the present invention is provided, first to existing common water mark method in the related technology into Row explanation.

Common watermark is usually visible, is typically formed in paper-making process, " folder " is in paper rather than in paper Surface is clear that the figure, portrait or word of light and shade texture when meeting x ray fluoroscopy x, be typically used in RMB, shopping Volume, food coupon, security, file etc., for example, the reference report got.

Digital watermarking is that technology is to be directly embedded into some identification informations (for example, identification information of recipient and sender) (including multimedia, document, software etc.) or secondary indication (structure of modification specific region) in digital carrier, and do not influence The use value of original vector is also not easy to be ascertained and change again.But it can be identified and recognized by producer.It is hidden by these Hide information in the carrier, can reach confirm creator of content, buyer, transmission secret information or judge carrier whether by The purpose of distorting.It is added to the picture of digital watermarking, does not influence to read, have no change on sense organ, picture volume will not be shown It writes and increases.Digital watermark technology is converted by signal, and watermark information is added in spatial domain or the frequency domain of picture, such as Fig. 1 C institutes Show, can be realized by following steps：

Step S11 obtains image.

Step S12 carries out discrete Fourier transform to image, image is transformed into frequency domain.

Step S13 obtains the frequency domain of the image after Fourier transformation.

Step S14 determines watermark information according to the identification information of receiving-transmitting sides.

Step S15 encodes the watermark information.

Watermark information after coding is added to the frequency domain of image by step S16.

Step S17 carries out inverse discrete Fourier transform to the frequency domain of the image added with watermark information, obtains watermark figure Picture.

Step S18 exports watermarking images.

In the related art, watermark can be extracted from watermarking images by the inverse operation with mode of operation shown in Fig. 1 C Information.As shown in figure iD, include the following steps：

Step S21 obtains watermarking images.

Step S22 carries out discrete Fourier transform to watermarking images and obtains the frequency domain of watermarking images.

Step S23 obtains original image.

Step S24 carries out original image the frequency domain to original image of discrete Fourier transform.

Step S25 obtains the frequency domain of the image after Fourier transformation.

Step S26 removes the frequency domain of original image from the frequency domain of watermarking images, obtains the corresponding frequency domain of watermark information.

Step S27 is decoded the corresponding frequency domain of watermark information, obtains watermark information.

Step S28 exports watermark information.

The embodiment of the present invention adds watermark information based on digital watermark technology in the information of instant messaging, to ensure once Information leakage, you can blabber is found according to watermark information, it is ensured that the safety of information.

The embodiment of the present invention provides a kind of instant communication method, and Fig. 2A is the realization of instant communication method of the embodiment of the present invention Flow diagram the described method comprises the following steps as shown in Figure 2 A：

Step S201 obtains the first information to be sent.

Here, the first information includes at least one of text message, multimedia messages, the multimedia messages packet At least one of image information, audio-frequency information are included, for example, word, audio or video etc..

Method provided in this embodiment can be realized by the equipment as transmitting terminal, and the equipment can be by moving Equipment is realized, for example, it may be there is the movement of wireless communication ability to set for mobile phone (mobile phone), iPad, notebook etc. It is standby.The equipment can also be the inconvenient mobile equipment with computing function, such as desktop computer, desktop computer etc..It should Instant messaging application can be installed, user can be applied by instant messaging and send various text envelopes with other users in equipment Breath or multimedia messages etc..Described " obtaining the first information to be sent ", can be instant messaging application of the user from equipment Middle input information to be sent, for example, input passage, one section of voice or one section of video etc.；It can also be other clients End the information sent to the instant messaging of equipment application is applied by identical instant messaging.As shown in Figure 2 B, the network rack Structure includes client 21 and client 22, wherein is equipped in the mobile device of client 21 and the mobile device of client 22 Instant messaging, which is applied, is used as client, and client 21 and client 22 can carry out instant messaging with other clients, work as client When end 21 and client 22 carry out end-to-end communication by IM, client 21 is sent to the first letter of client 22 by getting Breath.

In other embodiments, method provided in this embodiment, which can also be, is realized by server.I.e. server obtains The first information to be sent uploaded from instant messaging applications client.As shown in Figure 2 C, which includes client 23, visitor Family end 24, server 25, wherein instant messaging is installed in the mobile device of client 23 and the mobile device of client 24 and is answered It is used as client, client 23 and client 24 can carry out instant messaging with other clients.Server 25 is Instant Messenger News apply corresponding server.When being communicated by server by client 23 and client 24：When 23 He of client When client 24 is communicated by IM, information to be sent is uploaded to the corresponding services of the IM by the client 23 as transmitting terminal Device 25.

Step S202 adds the first watermark information in the first information, obtains the second information.

Here, first watermark information is hidden in second information；First watermark information includes transmitting terminal Identification information, or, first watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal.The transmission The identification information at end is to refer to only table to levy the information of sending end identity, for example, the sequence number etc. of transmitting terminal；The mark of the group The information that information is the identity for referring to only table syndrome is known, for example, the account of group.It is described that is added in the first information One watermark information is to add the first watermark information in the form of digital watermarking in the first information, ensure that the first watermark Information be user perception less than.

Step S202 can be realized by equipment, can also be and realized by server.

When step S202 is realized by equipment, equipment adds the first watermark information, Ke Yizhi in the first information of acquisition It connects and the second information added with the first watermark information is sent directly to receiving terminal, that is, carry out end-to-end communication；Can also first by Second information is uploaded onto the server, and the second information is then sent to receiving terminal by server.As shown in Figure 2 B, client 21 exists Addition includes the first watermark information of 22 identification information of client 21 and client in the form of digital watermarking in the information.

When step S202 is realized by server, server is to the first information of the equipment upload of acquisition with digital watermarking Form adds the first watermark information, obtains the second information；As shown in Figure 2 C, server 25 obtains the client 23 as transmitting terminal Identification information and identification information as receiving terminal 24, and using the identification information of the two as the first watermark information with digital water The form of print is added in information to be sent, obtains the second information.

Here, the content that second information is presented with the first information is identical, i.e., from the perspective of user Second information and the first information are indistinguishable, and user perceives less than watermark information therein, for example, the first information is one section Word, although the watermarked information in the second information, the first information and the second information that user sees all are one section identical Word.

Second information is sent to receiving terminal by step S203.

Here, step S203 can be realized by equipment, can also be and realized by server.

When the step S203 is realized by equipment, as shown in Figure 2 B, the equipment as transmitting terminal will add watermark information Information to be sent afterwards is sent to the client 22 as receiving terminal.

When the step S203 is realized by server, as shown in Figure 2 C, after server 25 will add the first watermark information Information to be sent be sent to the client 24 as receiving terminal.

In instant communication method provided in an embodiment of the present invention, first, the first information to be sent is obtained；Then, exist The first watermark information is added in the first information, obtains the second information；Wherein, first watermark information, which includes at least, sends The identification information at end or, group belonging to the transmitting terminal and receiving terminal identification information, and first watermark information is hidden in institute It states in the second information；Finally, second information is sent to receiving terminal；In this way, when being linked up using instant messaging application When, by adding digital first watermark information in information to be sent, so as to quickly and accurate according to the first watermark information The true person that finds outgoing messages.

In other embodiments, when first watermark information includes the identification information of transmitting terminal, the first watermark letter Breath further includes the identification information of receiving terminal；For example, transmitting terminal is A, receiving terminal is B, and the first watermark information includes the identification information of A With the identification information of B；In this way, the identification information of the identification information of transmitting terminal and receiving terminal is included in information to be sent In first watermark information, be conducive to the flow direction for tracking information to be sent.

In other embodiments, it when the first information is sent by other clients, the described method comprises the following steps：

The information that step S221, transmitting terminal or server send other clients of reception is as described to be sent the One information.

Here, other described clients are the client of the identical instant messaging application of other equipment installation, the transmission The information that end or server send other clients of reception, is equivalent to be other clients forwarding information outward.

Step S222 determines the receiving terminal of the first information, according to the identification information of transmitting terminal, other described clients Mark and receiving terminal identification information, determine the first watermark information.

First watermark information is added to the first information by step S223 in the form of digital watermarking, obtains Two information.

In the present embodiment, when the information received is the information of other clients forwarding, by it in the first information The identification information of his client is also contained in the first watermark information, contributes to the tracking flowed to the first information.

The embodiment of the present invention provides a kind of instant communication method, and Fig. 3 A are that the embodiment of the present invention realizes instant communication method Interaction schematic diagram, as shown in Figure 3A, when transmitting terminal and the receiving terminal one-to-one independent communication of progress, the method includes following Step：

Step S301, transmitting terminal receive the first information to be sent of input.

Here, the transmitting terminal can install the mobile device of instant messaging application to realize, for example, can pacify Mobile phone, learning machine and the tablet computer etc. of instant messaging application are filled, as shown in Figure 3B, the client 31 as transmitting terminal, which obtains, to be used The first information that the first information of family input or other clients are sent.

Step S302, transmitting terminal determine the receiving terminal of the first information, according to the identification information and receiving terminal of transmitting terminal Identification information, determine the first watermark information.

Here, transmitting terminal determines the receiving terminal of the first information, it can be understood as, transmitting terminal or server are determined and are received The receiving terminal of the first information, and obtain the identification information of the receiving terminal, as shown in Figure 3B, client 31 is according to the mark of client 31 The identification information for knowing information and client 32, determines the first watermark information.

First watermark information is added to the first information by step S303, transmitting terminal in the form of digital watermarking, Obtain the second information.

Here, as shown in Figure 3B, the first watermark information is added to described first by client 31 in the form of digital watermarking Information obtains the second information.

Second information is sent to receiving terminal by step S304, transmitting terminal.

Here, as shown in Figure 3B, second information is sent to the client 32 as receiving terminal by client 31.

Step S305, receiving terminal receive the second information for including the first watermark information.

Here, as shown in Figure 3B, client 32 receives the second information for including the first watermark information.

The receiving terminal can be the mobile device that can install instant messaging application.It is real from step S301 to step S305 Show transmitting terminal by the first information added with watermark information,

Step S306, if detecting trigger event, receiving terminal is determined according to the trigger event receives the second information Other receiving terminals.

Here, as shown in Figure 3B, if client 32 detects that (the second information of forwarding replicates the second information to trigger event Or to operations such as the second information sectional drawings), client 32 determines other receiving terminals of the second information i.e. according to the trigger event Client 33.

Other receiving terminals of second information can be the mobile device that can install instant messaging application.Second information Other receiving terminals and receiving terminal be different mobile device respectively, for example, receiving terminal is mounted with chat application client Mobile phone, the second information other receiving terminals can be mounted with computer or mobile phone of same chat application client etc..It is described to touch Hair event, including replicate second information, forwarding second information and sectional drawing is carried out to the page residing for the third information. If described detect that trigger event, receiving terminal determine other receiving terminals of the second information, Ke Yili according to the trigger event Xie Wei replicates the second information received when receiving terminal detects user, forwards or whens operations such as sectional drawing (ought connect When receiving end wants the second information of outgoing), determine other receiving terminals of the second information.

Step S307, receiving terminal add the second watermark information in second information, obtain third information.

Here, as shown in Figure 3B, client 32 adds the second watermark information in second information, obtains third letter Breath.Second watermark information includes the identification information of other receiving terminals of the second information, and second watermark information is hidden In the third information；The receiving terminal adds the second watermark information in second information, obtains third information, may be used also To be realized by server, i.e., the second information to be forwarded is uploaded to the server of instant messaging application by receiving terminal, and server obtains The identification information for other receiving terminals for receiving the second information is taken, and is determined according to the identification information of other receiving terminals of the second information Second watermark information is added in the second information by the second watermark information in the form of digital watermarking, obtains third information.

The third information is sent to other receiving terminals of second information by step S308, receiving terminal.

Here, as shown in Figure 3B, third information is sent to client 33 by client 32.Is carried in the third information One watermark information and the second watermark information include the identification information of transmitting terminal, receiving terminal in the watermark information of third information Identification information and the second information receiving terminal identification information；For example, the first user be company executives leader will be to be sent The first information (assuming that being Company Confidential) be sent to be company middle level leader second user, added with including the in the first information First watermark information of the identification information of one user and second user；When second user passes through the shapes such as duplication, sectional drawing or forwarding When formula outside the first information (i.e. the second information) including the first watermark information by third user is dealt into, second user is corresponding immediately (the second watermark information includes the mark of third user by the second watermark information for the client of communication applications or the server of client Know information) it is added in the second information, third information is obtained, third information is sent to third user, if third user is Criminal, then company can quickly look into according to the first watermark information and the second watermark information carried in third information Find the leakage person of information, and the illegal application person to the information.

In other implementations, in the step S301, i.e. transmitting terminal or server obtains to be sent first of input After information, the method is further comprising the steps of：

Step S311 turns the text message if the first information is text message, transmitting terminal or server It is changed to picture.

Here, identical word content is presented with the text message in the picture；

Step S312, transmitting terminal or server add the first watermark information in the picture, obtain second letter Breath.

Here, transmitting terminal either server in the frequency domain of the spatial domain of the picture or the picture with the shape of digital watermarking Formula adds the first watermark information, obtains second information.

Server that the method that above-mentioned steps S301 to step S304 is realized can also be applied by instant messaging realizes, I.e. server obtains the first information to be sent that transmitting terminal uploads；Then the first watermark information is added to the first information, obtained Second information；Finally, the second information is sent to receiving terminal, is led to by server when by client 23 and client 24 News include two ways：

Mode one：As shown in Figure 2 C, when client 23 and client 24 are communicated by IM, the visitor as transmitting terminal Information to be sent is uploaded to the corresponding servers 25 of the IM by family end 23, and server 25 obtains the client 23 as transmitting terminal Identification information and identification information as receiving terminal 24, server 25 and using the identification information of the two as the first watermark information with The form of digital watermarking is added in information to be sent, and then server 25 sends the information to be sent added with watermark information To client 24.

Mode two：As shown in Figure 3 C, when client 34 and client 35 are communicated by IM, client 34 will obtain To the information for being sent to client 35；Then addition includes client to client 34 in the form of digital watermarking in the information 34 and 35 identification information of client the first watermark information, and by add the first watermark information after information to be sent upload to clothes Information to be sent after adding the first watermark information is sent to the client as receiving terminal by business device 36, last server 36 35；In this way, due to being added with the first watermark information in the information that the client as receiving terminal receives, once information leakage, Leakage information person can be quickly found according to watermark information, ensure that the safety of information.

The embodiment of the present invention provides a kind of instant communication method, and Fig. 4 A are that the embodiment of the present invention realizes instant communication method Another interactive schematic diagram when transmitting terminal and receiving terminal progress group communication, the described method comprises the following steps as shown in Figure 4 A：

Step S401, transmitting terminal receive the first information to be sent of input.

Here, the transmitting terminal of the first information and the receiving terminal of the first information belong to the same group；It is included at least in the group Three group members, as shown in Figure 4 B, client 41,42 and 43 belong to the group 44 of instant messaging application, and in the group Group communication is carried out, client 41 receives the first information to be sent of input as transmitting terminal.

Step S402, transmitting terminal determine the group members as receiving terminal for receiving the first information.

Here, as shown in Figure 4 B, client 41 determines that the group members as receiving terminal for receiving the first information are (i.e. objective Family end 42 and client 43).The transmitting terminal determines the group members as receiving terminal for receiving the first information, it is possible to understand that For, if there are three the project team members of certain company, respectively member A, member B and member C, in the same instant messaging application The inside establishes only their three groups, and member A is project manager, and member A is intended to notify the competitive bidding of project at a low price to give member B With member C, first, the server of the client either instant messaging application of the instant messaging application of member A determines that this is logical Know the object to be sent (i.e. member B and member C).

Step S403, transmitting terminal is according to the identification information of the group members as receiving terminal, the identification information and work of the group For the identification information of the group members of transmitting terminal, the first watermark information is determined.

Here, as shown in Figure 4 B, client 41 according to the identification information of client 42 or client 43 as receiving terminal, The identification information of the identification information of the group 44 and client 41 as transmitting terminal, determines the first watermark information.The reception The identification information of the group members at end is the identification information (for example, the corresponding sequence numbers of member A) of member A, the mark of the group The identification information of information (for example, group's identity (identification, ID)) and the group members as transmitting terminal, is member B Identification information and member C identification information；In the present embodiment, it when pocket transmission information where member A to itself, needs point Do not send that information to each group members, and the watermark information of information that each group members receives is different, For example, when member A sends information to group members B, it will be according to the mark of the identification information of member A, the identification information of member B and group Know information and determines that watermark information (includes identification information, the identification information of member B and the mark of group of member A i.e. in watermark information Information)；

It, will be according to the identification information of member A, the identification information of member C and group when member A sends information to group members C Identification information determine the first watermark information (i.e. mark letter comprising the identification information of member A, member C in the first watermark information The identification information of breath and group).

First watermark information is added to the first information, obtains the second information by step S404, transmitting terminal.

Here, as shown in Figure 4 B, first watermark information is added to the first information by client 41, obtains second Information.Second watermark information includes the identification information of the receiving terminal of the second information, and second watermark information is hidden in In the third information.In the present embodiment, when member A sends information to group members B, by the identification information comprising member A, The watermark information of the identification information of B and the identification information of group is added in information to be sent, obtains the second information.

Second information is sent to the corresponding group members of first watermark information by step S405.

Here, as shown in Figure 4 B, client 41 by the first watermark information include client 41, client 42 and group 44 mark The second information for knowing information (i.e. client 41,42 in Fig. 4 B and group's watermark information) is sent to client 42；Client 41 will Watermark information includes the identification information (i.e. client 41 in Fig. 4 B and 43 watermark informations) of client 41, client 43 and group 44 The second information be sent to client 43.Although the letter that the group members (client 42 and client 43) as receiving terminal receive The watermark information for including in breath is different, but watermark information is that addition is got in the form of digital watermarking, from 42 He of client As viewed from the perspective of the user of client 43, the information that the two can perceive is identical.

Step S406, receiving terminal receive the second information for including the first watermark information.

Here, as shown in Figure 4 B, client 42 and client 43 receive corresponding second information respectively.

Step S407, if detecting trigger event, receiving terminal is determined according to the trigger event receives the second information Other receiving terminals.

Here, as shown in Figure 4 B, if client 42 is forwarded the second information, replicates or the operations such as sectional drawing, visitor Family end 42 determines other receiving terminals of the second information, i.e. client 45.The trigger event includes at least following one：Replicate institute It states the second information, forwarding second information or sectional drawing is carried out to the page residing for second information.

Step S408, receiving terminal add the second watermark information in second information, obtain third information.

Here, as shown in Figure 4 B, client 42 adds the second watermark information (including client 45 in second information Identification information), obtain third information.Second watermark information includes the identification information of the receiving terminal of the second information, and institute The second watermark information is stated to be hidden in the third information；In the present embodiment, if client 42 receiving terminal is arrived second Information is intended to be transmitted to other receiving terminals (assuming that being client 45), then client 42 instant messaging application client or Be the application server by the second watermark information corresponding to the identification information of client 45 be added in the second information to get to Third information, that is to say, that the mark of identification information of second watermark information comprising client 41, client 42 in third information The identification information of knowledge information, the identification information of client 43, the identification information of group 44 and client 45.

In other embodiments, if do not include the identification information of receiving terminal in first watermark information, described the Two watermark informations further include the identification information of receiving terminal.That is, if after client 43 receives the second information, through sentencing Disconnected discovery is wherein and not comprising the identification information (i.e. the identification information of client 43) of itself, then automatically by the identification information of itself It is added in the form of digital watermarking in the second information.

The third information is sent to other receiving terminals of second information by step S409.

Here, as shown in Figure 4 B, third information is sent to client 45 by client 42.

In embodiments of the present invention, when multiple users carry out group communication by immediate communication tool, due to each group The watermark information for including in the information that member receives is all different, once so information leakage, it is easy to trace information Leakage person ensure that the safety of information.

Server that the method that above-mentioned steps S401 to step S405 is realized can also be applied by instant messaging realizes, I.e. server obtains the first information to be sent that transmitting terminal uploads；Then watermark information is added in the first information, obtains second Information；Finally, the second information is sent to the corresponding group members of watermark information, includes two when logical multiple client carries out group's communication Kind mode：

Mode one：As shown in Figure 4 C, client 46, client 47 and client 48 are logical by the progress group of server 49 of IM When news, information to be sent is uploaded to the corresponding servers 49 of the IM by the client 46 as transmitting terminal, and server prepares the One information is sent respectively to client 47 and 48, wherein the process that the first information is sent to client 47 by server 49 includes： Server 49 adds the first watermark information (i.e. the watermark information of client 46,47 and group in Fig. 4 C) in the form of digital watermarking Into the first information to be sent, the second information is obtained, wherein the first watermark information includes the client 46 as transmitting terminal Identification information and as the identification information of receiving terminal 47 and the identification information of group.Second information is sent to client by server 47。

The process that the first information is sent to client 48 by server 49 includes：Server 49 by the first watermark information (i.e. The watermark information of client 46,48 and group in Fig. 4 C) it is added in the form of digital watermarking in the first information to be sent, it obtains Second information, wherein the first watermark information includes the identification information of the client 46 as transmitting terminal and as receiving terminal 48 The identification information of identification information and group.Second information is sent to client 48 by server 49.

Mode two：As shown in Figure 4 D, when client 50,51 and 52 carries out group's communication by the server 53 of IM, client 50 will get the first information to be sent, prepare the first information being sent respectively to client 51 and 52, wherein client 50 The process that the first information is sent to client 51 includes：Client 50 adds the first watermark information in the first information, obtains Second information, wherein the first watermark information includes the identification information of client 50, the identification information of client 51 and group identification letter Breath.The second information added with the first watermark information is uploaded onto the server 53 by client 50, then by server 53 by this second Information is sent to client 51.The process that the first information is sent to client 52 by client 50 includes：Client 50 is first Add the first watermark information in information, obtain the second information, wherein the first watermark information include client 50 identification information, The identification information and group identification information of client 52.Client 50 will upload to service added with first the second information of watermark information Device 53, then second information is sent to client 52 by server 53.From the above, it can be seen that receiving terminal (51 He of client 52) due to being added with watermark information in the second information received, once information leakage, you can it is quickly looked into according to watermark information Leakage information person is found, to ensure that the safety of information.

The embodiment of the present invention provides a kind of instant communication method, and the information added with digital watermarking is sent to receiving terminal, Watermark information can be attached in main information in this way, not influence the reading experience of main information, and when leakage of information, also Blabber can be found out according to watermark information.In the related art, digital watermark technology is usually in the spatial domain of picture or frequency Watermark information is added in domain, and digital watermarking has preferable robustness, it is various can to fight sectional drawing, picture stretching, picture rotation etc. Operation.As shown in figure 5, the user of the upper instant messaging application installed is Marketing Director in equipment 501, above installed in equipment 502 Instant messaging application user be company personnel Zhang San；Marketing Director is intended to the instant messaging applications client by equipment 502 Intra-company's message is sent to company personnel Zhang San, first, the instant messaging applications client of equipment 502 or the application Inside story 503 " this time submitting a tender, 30,000 yuan of our reserve price " to be sent is converted to picture lattice by server from text formatting Formula, and the first water comprising the identification information of Marketing Director and the identification information of Zhang San is added in the inside story of picture format Official seal ceases, and then, the inside story added with the first watermark information is sent to Zhang San.If Zhang San is intended to forward, replicate or The identification information comprising Marketing Director is still carried in the message that the sectional drawing inside story is received to third party, third party With the first watermark information of the identification information of Zhang San；In this way, the information in the instant messaging application of affix digital watermarking, just gives Information is marked, once the information outgoing can be traced back to blabber by blabber by extracting watermark information therein. So as to trace source of divulging a secret, security breaches are blocked in time, punish blabber.

In this hair inventive embodiments, for the message of the text formatting sent in IM, IM server end by text For the message transformation of format at the message of picture format, the content on picture is word.Tool is added in call number watermark simultaneously, Watermark information is added on the picture.Then the picture added with watermark information is sent to receiving terminal.In this way, transmitting terminal What is sent is word message, and what receiving terminal received is the word picture for carrying digital watermarking for not influencing to read.Due to Picture carries digital watermarking, and receiving terminal operates outgoing by forwarding, duplication, sectional drawing etc., can all carry digital watermarking.If Information leakage will be traced by extracting watermark to blabber from the information of outgoing.Informed source is traced for convenience, is added The identification information of the identification information and receiving terminal of transmitting terminal is carried to the watermark information in message.As shown in fig. 6, user A and use Family B is by being that communication applications are communicated, and first, text message 60 is uploaded the server that the instant messaging is applied by user A 61；Then, the message of text formatting is converted to picture format and adds the first water in the message of picture format by server 61 Official seal breath (first watermark information includes the identification information of the identification information and user B of user A), obtains believing comprising the first watermark The picture of breath；Finally, the picture 62 comprising the first watermark information is sent to user B by server 61.

When user A, B and C belong to the group G of instant messaging application, if user A is transmitting terminal, then user B The first watermark information is added in the information that the group G received is sent, wherein the first watermark information includes the mark letter of user A The identification information of breath, the identification information of user B and group G；The third watermark added in the information that the group G that user C is received is sent Information, wherein third watermark information include the identification information of the identification information of user A, the identification information of user C and group G.Therefore, Once the information sent in this group leaks, the generation source to leak out the news is known that from watermark information, you can with from connecing Terminating subscriber is judged to blabber and institutes an inquiry.

Fig. 7 be the embodiment of the present invention realize One-to-one communication flow diagram, as shown in fig. 7, the method includes with Lower step：

Step S701, server receive the first information to be sent that instant messaging application uploads.

Here, the first information can be that the first information is inputted in equipment by user, the Instant Messenger as client News application receives the first information of the input of user, is then uploaded onto the server again by the client；It can also be by other visitors Family end is sent to the client, is then uploaded onto the server again by the client.

Step S702, server judge whether the first information is text formatting, obtain judging result.

Here, if it is judged that showing that the first information is the word of text formatting, S703 is entered step, if it is not, Then enter step S704.

The text message is converted to picture by step S703, server.

Here, identical word content is presented with the text message in the picture.

Step S704, server determine that the first watermark is believed according to the identification information of transmitting terminal and the identification information of receiving terminal Breath.

Step S705, server add the first watermark information in the first information, obtain the second information.

Here, first watermark information includes the identification information of receiving terminal and the identification information of transmitting terminal.If first The picture format that information is converted to by text formatting adds the first watermark information in the picture, if the first information is not It is (for example, the first information is the multimedia messages such as audio, video) that text formatting is converted to, then directly in the first information The first watermark information of middle addition.

Second information is sent to receiving terminal by step S706, server.

Here, if transmitting terminal is user A, receiving terminal is that user B, user A and user B are carried out by instant messaging application Communication, user A input passage in instant communication applications, and it includes this section of word and watermark information that user B was received, which is, One pictures of (watermark information includes the identification information of the identification information and user B of user A), but user B it can be seen that Just only this section of word.

Step S707, receiving terminal receive the second information.

Fig. 8 is the flow diagram that the embodiment of the present invention realizes group communication, as shown in figure 8, the method includes following steps Suddenly：

Step S801, server upload the first letter to be sent by instant messaging application as the group members of transmitting terminal Breath.

Here, three group members are included at least in the group, it is assumed that the group G described in the present embodiment includes three group members (member A, member B and member C, member A is as transmitting terminal, and member B and member C are as receiving terminal).

Step S802, server judge whether the first information is text formatting, obtain judging result.

Here, if it is judged that showing that the first information is the word of text formatting, S803 is entered step, if it is not, Then enter step S804.

The text message is converted to picture by step S803, server.

Step S804, server according to the corresponding identification information of group members of transmitting terminal, as the group members pair of receiving terminal The identification information of the identification information and group answered determines the first watermark information.

Here, the corresponding identification information of group members (i.e. member A) of transmitting terminal can be that the corresponding instant messagings of member A are answered With the sequence number either identification card number etc. of member A itself of client, the corresponding identification information of group members as receiving terminal It is that the corresponding identification information of group members (i.e. member B or C) as receiving terminal can be the corresponding instant messaging of member B or C The sequence number of the applications client either identification card number etc. of member B or C itself.Transmitting terminal and receiving terminal belong to same Group, the identification information of the transmitting terminal, the identification information of receiving terminal and group identification information, it can be understood as, as transmitting terminal Group members identification information, as receiving terminal group members identification information and group identification information；So different groups at The watermark information for including in the information that member receives is different, for example, inside group G, when member A transmits the message to member B, Server is using the identification information of the identification information of A, the identification information of B and group G as (the referred to as ABG watermarks of the first watermark information Information)；When member A transmits the message to member C, server believes the mark of the identification information of A, the identification information of C and group G Breath is as the first watermark information (referred to as ACG watermark informations).

Step S805, server add the first watermark information in the first information, obtain the second information.

Here, inside group G, when member A transmits the message to member B, ABG watermark informations are added to by server In one information, the second information is obtained；When member A transmits the message to member C, ACG watermark informations are added to by server In one information, the second information is obtained.

Second information is sent to the corresponding group members of the first watermark information by step S806, server.

Here, inside group G, when member A transmits the message to member B, server will be added with ABG watermark informations Second information is sent to member B；When member A transmits the message to member C, server is by added with ACG watermark informations Two information are sent to member C.

Step S806, group members receive the second information.

In the present embodiment, when user carries out One-to-one communication or group communication by instant messaging application communication, Added with the watermark information for including both sides' mark and group identification in the message of communication, once one side of any of which reveals message It to others, can be traced according to watermark information, compensate for instant messaging application it cannot be guaranteed that information security or information Once the shortcomings that leakage can not search blabber.

The present embodiment provides a kind of instant communication device, Fig. 9 is the composed structure of instant communication device of the embodiment of the present invention Schematic diagram, as shown in figure 9, the instant communication device 900 includes：Receiving module 901, the first add module 902 and output mould Block 903, wherein：

Receiving module 901, for obtaining the first information to be sent；

First add module 902 obtains the second information for adding the first watermark information in the first information；Its In, first watermark information is hidden in second information；First watermark information includes the identification information of transmitting terminal, Or, first watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal；

Output module 903, for second information to be sent to receiving terminal.

In other embodiments, described device further includes：

Third add module is obtained for adding the first watermark information in the form of digital watermarking in the first information To the second information.When first watermark information includes the identification information of transmitting terminal, first watermark information further includes receiving The identification information at end；

The first information includes at least one of text message, multimedia messages, and the multimedia messages include figure As at least one of information, audio-frequency information.

In other embodiments, described device further includes：

The text message is converted to picture by conversion module if being text message for the first information；Its In, identical word content is presented with the text message in the picture；

4th add module obtains second information for adding the first watermark information in the picture.

In other embodiments, described device further includes：

5th add module, for being added in the form of digital watermarking in the frequency domain of the spatial domain of the picture or the picture Add the first watermark information, obtains second information.

In other embodiments, described device further includes：

First sending module, the first information to be sent for receiving input；

Second determining module, the receiving terminal for determining the first information, according to the identification information of transmitting terminal and reception The identification information at end determines the first watermark information；

6th add module, for first watermark information to be added to first letter in the form of digital watermarking Breath, obtains the second information.

In other embodiments, described device further includes：

First acquisition module, the first information to be sent for receiving input；

First receiving module, for determining the group members as receiving terminal for receiving the first information；

Third determining module, for according to the identification information of the group members as receiving terminal, the identification information of the group and The identification information of group members as transmitting terminal determines the first watermark information；

7th add module obtains the second information for first watermark information to be added to the first information；

First output module, for second information to be sent to the corresponding group members of first watermark information.

The embodiment of the present invention provides a kind of instant communication device again, and described device includes：Receiving module, detection module, Two add modules and sending module, wherein：

Receiving module receives the second information for including the first watermark information for receiving terminal；

If detection module determines its for receiving the second information according to the trigger event for detecting trigger event His receiving terminal；The trigger event includes replicating second information, forwarding second information and to the second information institute Locate the page and carries out sectional drawing；

Second add module obtains third information for adding the second watermark information in second information；Wherein, Second watermark information includes the identification information of other receiving terminals of the second information, and second watermark information is hidden in institute It states in third information；

Sending module, the receiving terminal for the third information to be sent to second information.

In other embodiments, if do not include the identification information of receiving terminal in first watermark information, described the Two watermark informations further include the identification information of receiving terminal.

It should be noted that the description of apparatus above embodiment, is similar with the description of above method embodiment, has The similar advantageous effect with embodiment of the method.For undisclosed technical detail in apparatus of the present invention embodiment, this hair is please referred to The description of bright embodiment of the method and understand.

It should be noted that in the embodiment of the present invention, if realizing above-mentioned Instant Messenger in the form of software function module Communication method, and when sold or used as an independent product, can also be stored in a computer read/write memory medium.Base In such understanding, substantially the part that contributes to existing technology can be in other words for the technical solution of the embodiment of the present invention The form of software product embodies, which is stored in a storage medium, including some instructions to So that instant messaging equipment (can be equipment, server etc.) execute each embodiment the method for the present invention whole or Part.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read Only Memory, ROM), magnetic disc Or the various media that can store program code such as CD.In this way, the embodiment of the present invention is not limited to any specific hardware It is combined with software.

Correspondingly, the embodiment of the present invention provides a kind of readable storage medium storing program for executing again, is stored with i.e. on the readable storage medium storing program for executing When communication program, the step of instant messaging program realizes above-mentioned instant communication method when being executed by processor.

The embodiment of the present invention provides a kind of instant messaging equipment (including equipment or server), including memory and processing again Device, the memory are stored with the computer program that can be run on a processor, and the processor is realized when executing described program Step in above-mentioned instant communication method.

The description of above instant messaging equipment and storage medium embodiment, is similar with the description of above method embodiment , there is with embodiment of the method similar advantageous effect.For in instant messaging equipment of the present invention and storage medium embodiment not The technical detail of disclosure please refers to the description of the method for the present invention embodiment and understands.

It should be noted that Figure 10 is a kind of hardware entities schematic diagram of instant messaging equipment in the embodiment of the present invention, such as Shown in Figure 10, the hardware entities of the equipment 1000 include：Processor 1001, communication interface 1002 and memory 1003, wherein

The overall operation of 1001 usual control device 1000 of processor.

Communication interface 1002 can make equipment pass through network and other equipment or server communication.

Memory 1003 is configured to store the instruction and application that can perform by processor 1001, can also cache pending device 1001 and equipment 1000 in each module it is pending or processed data (for example, image data, audio data, voice are logical Letter data and video communication data), flash memory (FLASH) or random access storage device (Random Access can be passed through Memory, RAM) it realizes.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots Structure or characteristic can in any suitable manner combine in one or more embodiments.It should be understood that in the various implementations of the present invention In example, size of the sequence numbers of the above procedures is not meant that the order of the execution order, and the execution sequence of each process should be with its work( It can determine that the implementation process of the embodiments of the invention shall not be constituted with any limitation with internal logic.The embodiments of the present invention Serial number is for illustration only, can not represent the quality of embodiment.

It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that process, method, article or device including a series of elements include not only those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this There is also other identical elements in the process of element, method, article or device.

In several embodiments provided herein, it should be understood that disclosed device and method can pass through it Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as：Multiple units or component can combine, or It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion It can be the INDIRECT COUPLING by some interfaces, equipment or unit to divide mutual coupling or direct-coupling or communication connection Or communication connection, can be electrical, mechanical or other forms.

The above-mentioned unit illustrated as separating component can be or may not be and be physically separated, aobvious as unit The component shown can be or may not be physical unit；Both it can be located at a place, may be distributed over multiple network lists In member；Some or all of wherein unit can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit, also may be used It, can also be during two or more units be integrated in one unit to be each unit individually as a unit；It is above-mentioned The form that hardware had both may be used in integrated unit is realized, can also be realized in the form of hardware adds SFU software functional unit.

One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in computer read/write memory medium, which exists When execution, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：Movable storage device read-only is deposited The various media that can store program code such as reservoir (Read Only Memory, ROM), magnetic disc or CD.

If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of software function module and as independent product Sale in use, can also be stored in a computer read/write memory medium.Based on this understanding, the present invention is implemented Substantially the part that contributes to existing technology can be expressed in the form of software products the technical solution of example in other words, The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with It is personal computer, server or network equipment etc.) execute all or part of each embodiment the method for the present invention. And storage medium above-mentioned includes：Various Jie that can store program code such as movable storage device, ROM, magnetic disc or CD Matter.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

1. a kind of instant communication method, which is characterized in that the method includes：

Obtain the first information to be sent；

The first watermark information is added in the first information, obtains the second information；Wherein, first watermark information is hidden in In second information；First watermark information includes the identification information of transmitting terminal, or, first watermark information includes institute State the identification information of group belonging to transmitting terminal and receiving terminal；

Second information is sent to receiving terminal.

2. according to the method described in claim 1, which is characterized in that the first watermark information is added in the first information, The second information is obtained, including：

The first watermark information is added in the form of digital watermarking in the first information, obtains the second information.

3. according to the method described in claim 1, which is characterized in that first watermark information includes the mark letter of transmitting terminal When breath, first watermark information further includes the identification information of receiving terminal；

The first information includes at least one of text message, multimedia messages, and the multimedia messages include image letter At least one of breath, audio-frequency information.

4. according to the method described in claim 1, which is characterized in that after the acquisition first information to be sent, institute The method of stating further includes：

If the first information is text message, the text message is converted into picture；Wherein, the picture and the text Identical word content is presented in this information；

Accordingly, described to add the first watermark information in the first information, the second information is obtained, including：

The first watermark information is added in the picture, obtains second information.

5. according to the method described in claim 4, which is characterized in that it is described that the first watermark information is added in the picture, Second information is obtained, including：

The first watermark information is added in the form of digital watermarking in the frequency domain of the spatial domain of the picture or the picture, obtains institute State the second information.

6. according to the method described in any one of claim 1 to 5, which is characterized in that it is described to obtain the first information to be sent, Including：Transmitting terminal receives the first information to be sent of input or the server receives the first information that transmitting terminal is sent；

It is described that the first watermark information is added in the first information, the second information is obtained, including：

Transmitting terminal or server determine the receiving terminal of the first information, according to the mark of the identification information of transmitting terminal and receiving terminal Information determines the first watermark information；

First watermark information is added to the first information by transmitting terminal or server in the form of digital watermarking, obtains Two information.

7. according to the method described in any one of claim 1 to 5, which is characterized in that it is described to obtain the first information to be sent, Including：The information that transmitting terminal or server send other clients of reception is as the first information to be sent；

The receiving terminal for determining the first information, according to the identification information of transmitting terminal, the mark of other clients and reception The identification information at end determines the first watermark information；

First watermark information is added to the first information in the form of digital watermarking, obtains the second information.

8. according to the method described in any one of claim 1 to 5, which is characterized in that it is described to obtain the first information to be sent, Including：Transmitting terminal receives the first information to be sent of input, alternatively, server receives the first information that transmitting terminal is sent；

Transmitting terminal or server determine the group members as receiving terminal for receiving the first information；

According to the mark of the identification information of the group members as receiving terminal, the identification information of the group and group members as transmitting terminal Know information, determines the first watermark information；

First watermark information is added to the first information, obtains the second information；

Second information is sent to the corresponding group members of first watermark information.

9. a kind of instant communication method, which is characterized in that the method includes：

The second watermark information is added in second information, obtains third information；Wherein, second watermark information includes the The identification information of other receiving terminals of two information, and second watermark information is hidden in the third information；

The third information is sent to other receiving terminals of second information.

10. according to the method described in claim 9, which is characterized in that received if do not included in first watermark information When the identification information at end, second watermark information further includes the identification information of receiving terminal.

11. according to the method described in claim 9, which is characterized in that the trigger event includes following one：

It replicates second information, forwarding second information, sectional drawing carried out to the page residing for second information.

12. a kind of instant communication device, which is characterized in that described device includes：Acquisition module, the first add module and output mould Block, wherein：

The acquisition module, for obtaining the first information to be sent；

First add module obtains the second information for adding the first watermark information in the first information；Wherein, First watermark information is hidden in second information；First watermark information includes the identification information of transmitting terminal, or, First watermark information includes the identification information of group belonging to the transmitting terminal and receiving terminal；

The output module, for second information to be sent to receiving terminal.

13. a kind of instant communication device, which is characterized in that described device includes：Receiving module, detection module, the second addition mould Block and sending module, wherein：

If the detection module determines the receiving terminal of the second information according to the trigger event for detecting trigger event；

Second add module obtains third information for adding the second watermark information in second information；Wherein, Second watermark information includes the identification information of the receiving terminal of the second information, and second watermark information is hidden in described In three information；

14. a kind of instant messaging equipment, including memory and processor, the memory is stored with and can run on a processor Computer program, which is characterized in that the processor realizes any one of claim 1 to 8 or 9 to 11 when executing described program Step in one instant communication method.

15. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt The step in any one of claim 1 to 8 instant communication method is realized when processor executes, or realize claim 9 to Step in any one of 11 instant communication methods.