CN106533894A - Brand new secure instant messaging system - Google Patents
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Abstract
The invention discloses a brand new secure instant messaging system. On conventional 'system + user' instant messaging architecture, an 'Internet' layer is added to form innovative three-layer instant messaging architecture of 'Internet + system + user'. Furthermore, identity-based security architecture is constructed on the basis of identities of components in the innovative architecture to realize storage security and transmission security of instant messaging data, and identity authentication among the components. Through construction of the instant messaging system, interconnection of different instant messaging systems under the control of a security strategy is realized on the basis of ensuring the independence and privacies of the instant messaging systems.
Description
Technical field
The invention belongs to instant messaging field, relates to how to set up the instant messaging system of safety interconnection under the complex environment of the mixing such as the Internet, enterprise network and cloud computing environment, especially relates to how different instantaneous communication systems carry out safe interconnecting.
Background technology
Instant messaging（Instant Messaging, are abbreviated as IM）It is transmission and the reception process for using a network for instant message between mobile phone, panel computer and computer user, the information such as word, picture, sound and video can be transmitted, is one of very universal and welcome network application in the Internet.Typical IM applications have wechat, QQ, LINE, WhatsApp, rice chat and Tengxun logical etc..
Above-mentioned these IM applications are all established one's own system, and the instantaneous communication system for each building is owned by large number of customer group, but they can not all interconnect, and for example, the user of rice chat can not carry out instant messaging with the user of wechat.Although occurring in that various instant messaging agreements, some picture scalable messages with present agreement（XMPP）The Internet instant messaging consensus standard is all approved for, but still has not solved the problem that interconnects of instantaneous communication system.And, existing instantaneous communication system safety is also not enough, and user session information is easy to compromised in terminal and network or steals.Current instantaneous communication system is primarily present following two problems：
（1）Can not interconnect.The instantaneous communication system that different enterprises or tissue are built, and the instantaneous communication system for servicing towards the public, can't accomplish to interconnect, and this causes the motility of instant messaging to substantially reduce, and have a strong impact on the work collaboration efficiency of enterprise or tissue.Industry wishes that instant messaging also can easily interconnect as Email.
（2）Safety is not enough.The public instantaneous communication system in the Internet and enterprise-level instantaneous communication system of the existing overwhelming majority; basic identification verification function is only provided generally; enough security functions are not provided the user all; to protect the data storage security and data transmission security of user, session information to be easy to be tampered and steal.
At present, although occur in that some protocol conversion gateway technologies, can be used to solve the problem that interconnects of certain two specific instantaneous communication system, but limitation is very big, be not the solution of a universality.Also there is the minority's instantaneous communication system as Telegram, there is provided point-to-point instant messaging is encrypted safely, but security function is not generally also strong.
In a word, with developing rapidly for mobile Internet, and the Working Life of people is just becoming increasingly dependent on mobile intelligent terminal and instantaneous communication system platform, it is desirable to instant messaging also can interconnect as Email, and to be that safety is stronger interconnect.For this purpose, the present invention proposes a kind of instant messaging system of brand-new safety, this is an integrated safe Interworking Solution, can solve interconnecting and safety issue for instant messaging simultaneously.
The content of the invention
The purpose of the present invention is to set up one kind under the complex network environments such as the Internet, corporate intranet and cloud computing platform, can carry out the instant messaging system of safe interconnection, so as to what the current people of effectively solving ran into interconnects and safety issue.Either instantaneous communication system is built in Enterprise Special Network, or rent cloud server and build instantaneous communication system, can be interconnected, easily carry out instant messaging between user on the premise of ensuring information security.
A kind of instant messaging system of the brand-new safety of the present invention, it is divided into interconnection layer, three levels of system layer and client layer, wherein, interconnection layer provides the service of interconnecting between instantaneous communication system for system layer, and system layer provides the instant messaging service of safety for client layer.Particular content is as follows.
First, interconnection layer
Interconnection layer includes instant messaging router and security parameter switching centre, for interconnecting for each instantaneous communication system.
（1）Instant messaging router refers to a kind of network equipment interconnected for instantaneous communication system, and multiple instant messaging routers can be interconnected to form route service network, provide routing addressing and protocol translation service for system layer.
（2）Security parameter switching centre refers to a kind of safety equipment interconnected for instantaneous communication system, and the security parameter of in store each instantaneous communication system is the mutual security parameter of offer that interconnects of instantaneous communication system.
2nd, system layer
System layer is made up of instantaneous communication system autonomous one by one, for providing the user safe instant messaging service.Instantaneous communication system is made up of instant communication server and security service center again, each instantaneous communication system is exactly the instant messaging network of an autonomous architectonical, one to multiple instant communication server can be disposed, the customer data base with oneself can run different instant messaging agreements.
（1）Instant communication server is a kind of equipment for providing the user safe instant messaging service, can both be deployed in cloud data center, it is also possible to be deployed in the internal network of enterprise or tissue, and with the interactive interface with security service center.
（2）Security service center and provides safety supports by the interface for which by management module is identified and id password management module is constituted with the interactive interface with instant communication server.Wherein, identifying management module is used for the identity of instant communication server and user in management service instantaneous communication system, it is ensured that its uniqueness；Id password management module using identity as public key, generates the private key corresponding to the identity for the identity according to instant communication server or user based on id password algorithm.
3rd, client layer
Client layer is made up of user, and the instant messaging between user is divided into two kinds of instant messaging and cross-system instant messaging in system.Wherein, the instant messaging carried out between the user that instant messaging refers in an instantaneous communication system in system, without the need for by the support of interconnection layer；And cross-system instant messaging then refers to the instant messaging carried out by the user of two or more instantaneous communication systems, the support by interconnection layer is needed.
Further, cross-system instant messaging is comprised the following steps that：
（1）User initiates instant messaging, invites other users to add communication；
（2）The instant communication server that user is located is initiated, according to the mark of other users, the mark of the instant communication server that these users are located is obtained；
（3）The mark of the instant communication server using these servers at user place is initiated, and the addressing request to these servers is sent to its instant messaging router is connected；
（4）Instant messaging router route addressing request in route service network, finds the network address of these servers；
（5）Instant messaging router returns to the network address of each server to the instant communication server for initiating user place；
（6）The server of the instant communication server request and other users place of initiating user place sets up network connection；
（7）The server that other users are located conducts interviews control according to its security strategy, decides whether to set up network connection with the server for initiating user place；
（8）If security strategy is allowed, the server of the instant communication server and other users place of initiating user place sets up network connection；
（9）Each user starts instant messaging.
The instant messaging system of a kind of brand-new safety of the present invention, its security feature is embodied in instantaneous communication system and has provided a user with the instant messaging service comprising identity discriminating, access control, data storage security and data transmission security, specific as follows：
（1）Identity differentiates：Identity of the instantaneous communication system based on user or instant communication server, carries out bidirectional identification between user and user, between instant communication server and user and differentiates.
（2）Access control：Instantaneous communication system is formulated based on source, the security strategy of purpose instant communication server identity, and is performed in being issued to instant communication server, goes to control the connection of instant communication server and other instant communication servers.
（3）Data storage security：Instantaneous communication system supports that user is encrypted storage using the private key of oneself in user side to instant communication data.
（4）Data transmission security：Instantaneous communication system supports the cross-system instant messaging of instant messaging and safety in the system of safety, protects the transmission safety of instant communication data.
Instant messaging in above-mentioned safe system, which comprises the following steps that：
（1）Initiate user and generate session key at random；
（2）Identity by the use of conversational user is used as public key, it will be sent to the conversational user after words key encryption；
（3）The conversational user is decrypted using its private key, obtains session key；
（4）If group communication, while repeating the（2）（3）Step, until all communication members obtain session key；
（5）Follow-up instant communication data is transmitted after being all encrypted with this session key.
Above-mentioned safe cross-system instant messaging, which comprises the following steps that：
（1）Initiate user and generate session key at random；
（2）Initiate the security parameter of the instantaneous communication system logged in security parameter switching centre inquiry session user by user；
（3）Security parameter switching centre returns the security parameter of the instantaneous communication system logged in by conversational user to user is initiated；
（4）Initiate the security parameter of identity and its instantaneous communication system that logged in of the user using conversational user, it will after words key encryption, be sent to the conversational user；
（5）The conversational user is decrypted using its private key, obtains session key；
（6）If group communication, while repeating the（2）To（5）Step, until all communication members obtain session key；
（7）Follow-up instant communication data is transmitted after being all encrypted with this session key.
The beneficial effect of the invention is, on the basis of each instantaneous communication system itself independence and privacy is ensured, realizes interconnecting for the different instantaneous communication systems under security strategy control, and instant messaging between the user of highly effective and safe.
Description of the drawings
Fig. 1 is the hierarchical structure block diagram of the instant messaging system of the present invention.
Fig. 2 is the logic deployment schematic diagram of the instant messaging system of the present invention.
Fig. 3 is the concrete steps of the cross-system instant messaging of the present invention.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the hierarchical structure block diagram of the instant messaging system of the present invention.The instant messaging system is divided into interconnection layer, three levels of system layer and client layer, and wherein, interconnection layer provides the service of interconnecting between instantaneous communication system for system layer, and system layer provides the instant messaging service of safety for client layer.Detailed description is as follows.
First, interconnection layer
Interconnection layer includes instant messaging router and security parameter switching centre, for interconnecting for each instantaneous communication system.
（1）Instant messaging router refers to a kind of network equipment interconnected for instantaneous communication system, and multiple instant messaging routers can be interconnected to form route service network, provide routing addressing and protocol translation service for system layer.When two or more instantaneous communication systems need to interconnect, due to not knowing the network address of other side, and different instant messaging agreements may be used, so that instant messaging router is setting up network connection relation for instantaneous communication system.
（2）Security parameter switching centre refers to a kind of safety equipment interconnected for instantaneous communication system, and the security parameter of in store each instantaneous communication system is the mutual security parameter of offer that interconnects of instantaneous communication system.Because in each instantaneous communication system, the security parameter at its security service center is different, which ensure that the user of different instantaneous communication systems, even if ID is identical, it is that private key of its generation is also different.
2nd, system layer
System layer is made up of instantaneous communication system autonomous one by one, for providing the user safe instant messaging service.Instantaneous communication system is made up of instant communication server and security service center again, each instantaneous communication system is exactly the instant messaging network of an autonomous architectonical, one to multiple instant communication server can be disposed, the customer data base with oneself can run different instant messaging agreements.
（1）Instant communication server is a kind of equipment for providing the user safe instant messaging service, can both be deployed in cloud data center, it is also possible to be deployed in the internal network of enterprise or tissue, and with the interactive interface with security service center.Depending on the quantity of instant communication server is according to the number of users of instantaneous communication system, 1 server can accommodate ten thousand grades of number of users.
（2）Security service center and provides safety supports by the interface for which by management module is identified and id password management module is constituted with the interactive interface with instant communication server.Wherein, identifying management module is used for the identity of instant communication server and user in management service instantaneous communication system, it is ensured that its uniqueness；Id password management module using identity as public key, generates the private key corresponding to the identity for the identity according to instant communication server or user based on id password algorithm.One instantaneous communication system, it is only necessary to a security service center.
3rd, client layer
Client layer is made up of user, is the user of instantaneous communication system.User in one instantaneous communication system can mutually carry out instant messaging, and the user of different instantaneous communication systems also can mutually carry out instant messaging.Therefore, the instant messaging between user is divided into two kinds of instant messaging and cross-system instant messaging in system.Wherein, the instant messaging carried out between the user that instant messaging refers in an instantaneous communication system in system, without the need for by the support of interconnection layer；And cross-system instant messaging then refers to the instant messaging carried out by the user of two or more instantaneous communication systems, the support by interconnection layer is needed.
Fig. 2 is the logic deployment schematic diagram of the instant messaging system of the present invention.For ease of understanding, two instantaneous communication systems are only disposed here：Instantaneous communication system 1 and instantaneous communication system 2.Wherein, instantaneous communication system 1 is made up of instant communication server A, instant communication server B and security service center 1, and instantaneous communication system 2 is made up of instant communication server C and security service center 2.User 1, user 2 and user 3 belong to instantaneous communication system 1, and wherein, user 1 and user 2 are the registering and loggings on instant communication server A, and user 3 is the registering and logging on instant communication server B.User 4 and user 5 belong to instantaneous communication system 2, user 4 and user 5 registering and logging on instant communication server C.
In interconnection layer, instant messaging router 1 and security parameter switching centre 1 is deployed with respectively.They are used for interconnecting for instantaneous communication system 1 and instantaneous communication system 2, when user 1 or user 2 or user 3 need to carry out instant messaging with user 4 or user 5, it is necessary to the support of instant messaging router 1 and security parameter switching centre 1.In system during instant messaging, it is not necessary to the support of interconnection layer, i.e. user 1, the instant messaging between user 2 and user 3 are completed in instantaneous communication system 1, the instant messaging between user 4 and user 5, are completed in instantaneous communication system 2.
Fig. 3 is the concrete steps of the cross-system instant messaging of the present invention.In conjunction with the logic deployment schematic diagram shown in Fig. 2, the process that interconnects between a typical instantaneous communication system is illustrated.For example, user 1 initiates the instant messaging with user 5, comprises the following steps that：
（1）User 1 initiates the instant messaging with user 5；
（2）Marks of the instant communication server A according to user 5, obtains the mark of the instant communication server C of its login；
（3）Instant communication server A proposes routing addressing request, the network address of requesting query instant communication server C to instant messaging router 1；
（4）Mark of the instant messaging router 1 according to instant communication server C, inquiry obtain the network address of instant communication server C；
（5）Instant messaging router 1 returns to the network address of instant communication server C to instant communication server A；
（6）Network connection is set up with instant communication server C in the network address of the instant communication server A according to instant communication server C, request；
（7）Security strategies of the instant communication server C according to oneself, decides whether to set up network connection with instant communication server A；
（8）If security strategy is allowed, instant communication server A and instant communication server C sets up network connection；
（9）User 1 and user 5 carry out instant messaging.
The instant messaging system of a kind of brand-new safety of the present invention, its security feature are embodied in instantaneous communication system and have provided a user with the instant messaging service comprising identity discriminating, access control, data storage security and data transmission security.With reference to Fig. 2, it is described in detail.
（1）Identity differentiates
Identity of the instantaneous communication system based on user or instant communication server, carries out bidirectional identification between user and user, between instant communication server and user and differentiates.First, each user can carry out bidirectional identification discriminating in access of instant communicating server between server and user；Secondly, when user creates point-to-point or group communication, it is also required to carry out bidirectional identification discriminating between user；Finally, if cross-system instant messaging, between instant communication server and instant communication server, it is also desirable to carry out bidirectional identification discriminating.Successful identity discriminating is carried out only after, can just arrive next step.
（2）Access control
Instantaneous communication system is formulated based on source, the security strategy of purpose instant communication server identity, and is performed in being issued to instant communication server, goes to control the connection of instant communication server and other instant communication servers.By controlling the connection between instant communication server, the instant messaging between its user is just controlled.For example, if instantaneous communication system 2 formulates security strategy, be issued in instant communication server C, do not allow network connection to be set up with instant communication server A and instant communication server B, then, user 1,2,3 can not carry out instant messaging with user 4,5.
（3）Data storage security
Instantaneous communication system supports that user is encrypted storage using the private key of oneself in user side to instant communication data.For example, the id password management module at security service center 1, according to the identity of user 1, using which as public key, generates the private key K1 corresponding to the identity, and user 1 just can encrypt the instant communication data of oneself by this private key K1 and carry out safe storage.
（4）Data transmission security
Instantaneous communication system supports the cross-system instant messaging of instant messaging and safety in the system of safety, protects the transmission safety of instant communication data.Here illustrate by taking the instant messaging of user 1, user 2 and user 3 as an example, the identity of hypothesis user 1 is UID1, the identity of user 2 is UID2, the identity of user 3 is UID3, it is K1 that the id password management module at security service center 1 is the private key that user 1 generates, the private key generated for user 2 is K2, is that the private key of the generation of user 2 is K3.
So, user 1 initiates and user 2, the group communication of user 3, and concrete steps can be described as follows：
（1）User 1 is random to generate session key SKey1；
（2）User 1 by the use of user 2 identity UID2 as public key, it will words key SK ey1 encryption after be sent to user 2；
（3）User 2 is decrypted using its private key K2, obtains session key SKey1；
（4）Meanwhile, user 1 by the use of user 3 identity UID3 as public key, it will words key SK ey1 encryption after be sent to user 3；
（5）User 3 is decrypted using its private key K3, obtains session key SKey1；
（6）Follow-up group communication data are transmitted after being all encrypted with session key SKey1.
For the cross-system instant messaging of safety, here illustrate by taking the instant messaging of user 1 and user 5 as an example, the identity of hypothesis user 1 is UID1, the identity of user 5 is UID5, it is K1 that the id password management module at security service center 1 is the private key that user 1 generates, and the id password management module at security service center 2 is K5 for the private key that user 5 generates.So, concrete steps can be described as follows：
（1）User 1 is random to generate session key SKey2；
（2）User 1 inquires about the security parameter of the instantaneous communication system 2 logged in by user 5 to security parameter switching centre 1；
（3）Security parameter switching centre 1 returns the security parameter P2 of the instantaneous communication system 2 logged in by user 5 to user 1；
（4）Security parameter P2 of the user 1 using the identity UID5 and instantaneous communication system 2 of user 5, it will be sent to user 5 after words key SK ey2 encryption；
（5）User 5 is decrypted using its private key K5, obtains session key SKey2；
（6）Follow-up instant communication data is transmitted after being all encrypted with session key SKey2.
Claims (10)
1. a kind of instant messaging system of brand-new safety, is divided into interconnection layer, three levels of system layer and client layer, it is characterised in that：
（1）Interconnection layer：Including instant messaging router and security parameter switching centre, for interconnecting for each instantaneous communication system；Wherein, instant messaging router supports that routing addressing and protocol conversion, interconnecting for each instantaneous communication system, security parameter switching centre are used for preserving the security parameter of each instantaneous communication system, provides mutual security parameter for instantaneous communication system；
（2）System layer：It is made up of instantaneous communication system autonomous one by one, instantaneous communication system is made up of instant communication server and security service center, one to multiple instant communication server can be disposed, customer data base with oneself, different instant messaging agreements can be run, for providing the user safe instant messaging service；
（3）Client layer：It is made up of user, the instant messaging between user is divided into two kinds of instant messaging and cross-system instant messaging in system；Wherein, the instant messaging carried out between the user that instant messaging refers in an instantaneous communication system in system, without the need for by the support of interconnection layer；Cross-system instant messaging refers to the instant messaging carried out by the user of two or more instantaneous communication systems, needs the support by interconnection layer.
2. instant messaging system according to claim 1, it is characterized in that, instant communication server in the instantaneous communication system is a kind of equipment for providing the user safe instant messaging service, cloud data center can be both deployed in, can also be deployed in the internal network of enterprise or tissue, and with the interactive interface with security service center.
3. instant messaging system according to claim 1, it is characterized in that, security service center in the instantaneous communication system is with the interactive interface with instant communication server, and safety supports are provided by the interface for which, it is made up of mark management module and id password management module, it is specific as follows：
（1）Lifecycle management and the maintenance of instant communication server and User Identity that mark management module is used in instantaneous communication system, it is ensured that its uniqueness；
（2）Id password management module using identity as public key, generates the private key corresponding to the identity for the identity according to instant communication server or user based on id password algorithm.
4. instant messaging system according to claim 1, it is characterised in that the cross-system instant messaging in the client layer is comprised the following steps that：
（1）User initiates instant messaging, invites other users to add communication；
（2）The instant communication server that user is located is initiated, according to the mark of other users, the mark of the instant communication server that these users are located is obtained；
（3）The mark of the instant communication server using these servers at user place is initiated, and the addressing request to these servers is sent to its instant messaging router is connected；
（4）Instant messaging router route addressing request in route service network, finds the network address of these servers；
（5）Instant messaging router returns to the network address of each server to the instant communication server for initiating user place；
（6）The server of the instant communication server request and other users place of initiating user place sets up network connection；
（7）The server that other users are located conducts interviews control according to its security strategy, decides whether to set up network connection with the server for initiating user place；
（8）If security strategy is allowed, the server of the instant communication server and other users place of initiating user place sets up network connection；
（9）Each user starts instant messaging.
5. instant messaging system according to claim 1 and 2, provide the user safe instant messaging service and refer to that instantaneous communication system has provided a user with the instant messaging service comprising identity discriminating, access control, data storage security and data transmission security characterized in that, described.
6. instant messaging system according to claim 5, it is characterized in that, the access control refers to that instantaneous communication system is formulated based on source, the security strategy of purpose instant communication server identity, and perform in being issued to instant communication server, go to control the connection of instant communication server and other instant communication servers.
7. instant messaging system according to claim 5, it is characterised in that the data storage security refers to that instantaneous communication system supports that user is encrypted storage using the private key of oneself in user side to instant communication data.
8. instant messaging system according to claim 5, it is characterised in that the data transmission security refers to that instantaneous communication system supports the cross-system instant messaging of instant messaging and safety in the system of safety, protects the transmission safety of instant communication data.
9. instant messaging system according to claim 8, it is characterised in that as follows the step of instant messaging in the safe system：
（1）Initiate user and generate session key at random；
（2）Identity by the use of conversational user is used as public key, it will be sent to the conversational user after words key encryption；
（3）The conversational user is decrypted using its private key, obtains session key；
（4）If group communication, while repeating the（2）（3）Step, until all communication members obtain session key；
（5）Follow-up instant communication data is transmitted after being all encrypted with this session key.
10. instant messaging system according to claim 8, it is characterised in that as follows the step of the safe cross-system instant messaging：
（1）Initiate user and generate session key at random；
（2）Initiate the security parameter of the instantaneous communication system logged in security parameter switching centre inquiry session user by user；
（3）Security parameter switching centre returns the security parameter of the instantaneous communication system logged in by conversational user to user is initiated；
（4）Initiate the security parameter of identity and its instantaneous communication system that logged in of the user using conversational user, it will after words key encryption, be sent to the conversational user；
（5）The conversational user is decrypted using its private key, obtains session key；
（6）If group communication, while repeating the（2）To（5）Step, until all communication members obtain session key；
（7）Follow-up instant communication data is transmitted after being all encrypted with this session key.
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| WO2021005498A1 (en) * | 2019-07-11 | 2021-01-14 | LeapXpert Limited | Multichannel messaging system and method |
| US11646982B2 (en) | 2019-07-11 | 2023-05-09 | LeapXpert Limited | Multichannel messaging system and method |
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