CN114866964A - Message transmission method and device based on proximity service, electronic equipment and medium - Google Patents
Message transmission method and device based on proximity service, electronic equipment and medium Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 230000004044 response Effects 0.000 claims abstract description 139
- 238000013475 authorization Methods 0.000 claims abstract description 99
- 238000012544 monitoring process Methods 0.000 claims description 60
- 238000012790 confirmation Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 18
- 230000006854 communication Effects 0.000 abstract description 19
- 238000004891 communication Methods 0.000 abstract description 18
- 230000006870 function Effects 0.000 description 40
- 238000012806 monitoring device Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
- H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a message transmission method, a device, electronic equipment and a medium based on proximity service, wherein the method comprises the following steps: responding to an announcer discovery request message sent by announcer equipment, and sending an announcer authorization request message to a ProSe application server, wherein the announcer authorization request message is used for returning an announcer authorization response message after indicating that the ProSe application server authorizes and confirms; and responding to the announcer authorization response message returned by the ProSe application server, and sending an announcer discovery response message to the announcer device, wherein the announcer discovery response message comprises a preset encryption key, and the preset encryption key is used for encrypting the privacy information to be announced by the announcer to obtain encryption information. The privacy disclosure can be avoided to a certain extent, and the communication safety is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, an electronic device, and a medium for transmitting a message based on proximity service.
Background
With the development of mobile communication technology, Proximity-based Services (ProSe) technology has emerged, which enables direct communication between two devices at a short distance without the data path therebetween wrapping around the core network. When ProSe is used to implement message transmission, the announcing device needs to broadcast the announcing message, so that the monitoring device can discover the announcing device based on the announcing message. In a scenario with a high security requirement, the announcement message includes privacy information, however, an attacker can acquire the announcement message broadcasted by the announcement device and obtain the privacy information in the announcement message as long as the attacker is in a broadcast coverage range, which causes privacy disclosure and communication security hidden danger.
Disclosure of Invention
An object of the present application is to provide a method, an apparatus, an electronic device, and a medium for transmitting a message based on proximity service, which overcome, at least to some extent, the technical problem of privacy disclosure in the related art that causes communication security risks.
According to an aspect of embodiments of the present application, there is provided a proximity service-based message transmission method applied to a proximity service ProSe function entity, the method including:
responding to an announcer discovery request message sent by announcer equipment, and sending an announcer authorization request message to a ProSe application server, wherein the announcer authorization request message is used for returning an announcer authorization response message after indicating that the ProSe application server authorizes and confirms;
and responding to the announcer authorization response message returned by the ProSe application server, and sending an announcer discovery response message to the announcer device, wherein the announcer discovery response message comprises a preset encryption key, and the preset encryption key is used for encrypting the privacy information to be announced by the announcer to obtain encryption information.
According to an aspect of an embodiment of the present application, there is provided a proximity service based message transmission apparatus, including:
the first transmission module responds to an announcer discovery request message sent by announcer equipment, and sends an announcer authorization request message to the ProSe application server, wherein the announcer authorization request message is used for indicating the ProSe application server to return an announcer authorization response message after authorization confirmation;
a second transmission module, configured to send an announcing party discovery response message to the announcing party device in response to the announcing party authorization response message returned by the ProSe application server, where the announcing party discovery response message includes a preset encryption key, and the preset encryption key is used to encrypt the privacy information to be announced by the announcing party to obtain encrypted information.
In some embodiments of the present application, based on the above technical solution, the proximity service based message transmission apparatus is configured to:
receiving a matching report message sent by a listener device, wherein the matching report message is generated by the listener device by using the encryption information announced by the announcer device;
obtaining the encryption information from the matching report message;
decrypting the encrypted information by adopting a preset decryption key corresponding to the preset encryption key to obtain the privacy information;
and sending a matching response message to the monitoring party equipment, wherein the matching response message comprises the privacy information, the privacy information comprises the identity information of the declaration party equipment, and the identity information is used for indicating the monitoring party equipment to finish the identity identification of the declaration party equipment.
In some embodiments of the present application, based on the above technical solution, the proximity service based message transmission apparatus is configured to:
receiving a listener discovery request message sent by the listener device, where the listener discovery request message is used to instruct the ProSe function entity to send a listener authorization request message;
sending a monitoring party authorization request message to the ProSe application server according to the monitoring party discovery request message, wherein the monitoring party authorization request message is used for returning a monitoring party authorization response message after indicating that the ProSe application server is authorized and confirmed;
and responding to the listener authorization response message, and sending a listener discovery response message to the listener device, where the listener discovery response message is used to instruct the listener device to generate and send the matching report message, and the matching report message includes the encryption information broadcast by the announcer device.
In some embodiments of the present application, based on the above technical solution, the proximity service based message transmission apparatus is configured to:
checking whether the listener device has a right based on the matching report message;
acquiring an announcement message of the announcer equipment from the matching report message, and checking the integrity of the announcement message, wherein the announcement message is generated according to the privacy message, and the announcement message comprises the privacy message;
if the monitoring side equipment is checked to have the authority and the integrity meets a preset integrity condition, starting a process of sending the matching response message to the monitoring side equipment;
and if the monitoring side equipment does not have the authority or the integrity does not accord with the preset integrity condition, not starting the process of sending the matching response message to the monitoring side equipment.
According to an aspect of the embodiments of the present application, there is provided a proximity service-based message transmission method applied to an announcer device, the method including:
transmitting an announcer discovery request message to a ProSe function entity, wherein the announcer discovery request message is used for enabling the ProSe function entity to transmit an announcer discovery response message after completing authorization confirmation;
receiving the announcer discovery response message sent by the ProSe functional entity;
acquiring a preset encryption key from the announcer discovery response message;
encrypting the private information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information;
broadcasting an announcement message including the encryption information.
According to an aspect of an embodiment of the present application, there is provided a proximity service based message transmission apparatus, including:
a first sending module, configured to send an announcer discovery request message to a ProSe function entity, where the announcer discovery request message is used to enable the ProSe function entity to send an announcer discovery response message after completing authorization confirmation;
a first receiving module, configured to receive the announcer discovery response message sent by the ProSe function entity;
a first obtaining module, configured to obtain a preset encryption key from the announcer discovery response message;
the encryption module is used for encrypting the privacy information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information;
a broadcasting module for broadcasting an announcement message including the encryption information.
In some embodiments of the present application, based on the above technical solution, the proximity service based message transmission apparatus is configured to:
broadcasting an announcement message including the encryption information to a listener device on a PC5 interface of the announcer device.
According to an aspect of the embodiments of the present application, there is provided a proximity service-based message transmission method, applied to a listener device, the method including:
sending a monitor finding request message to a ProSe functional entity, wherein the monitor finding request message is used for sending a monitor authorization response message after the ProSe functional entity completes authorization confirmation;
receiving an announcement message broadcasted by an announcement device in response to the listener authorization response message sent by the ProSe functional entity;
obtaining encryption information from the announcement message;
sending a matching report message including the encryption information to the ProSe functional entity, wherein the matching report message is used for enabling the ProSe functional entity to decrypt the encryption information to obtain the privacy information of the announcer equipment and returning the privacy information;
receiving the privacy information returned by the ProSe functional entity;
completing discovery of the announcer device based on the privacy information, the privacy information including identity information of the announcer device.
According to an aspect of an embodiment of the present application, an electronic device is disclosed, including: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the methods provided in the various alternative implementations described above.
According to an aspect of embodiments of the present application, a computer program medium is disclosed, on which computer readable instructions are stored, which, when executed by a processor of a computer, cause the computer to perform the method provided in the above various alternative implementations.
According to an aspect of embodiments herein, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations described above.
In the technical scheme provided by the embodiment of the application, at the discovery stage of the announcer device, the encrypted information is obtained by encrypting the private information to be announced by the announcer device, so that the private information to be announced is not directly transmitted, but is encrypted by adopting an encryption technology with higher security and then announced. The method is implemented in a discovery phase of the announcing device, the ProSe functional entity and the ProSe application server transmit a discovery request and an authorization request in the discovery phase, and the ProSe functional entity returns an encryption key when confirming an authorization response, so that in each discovery process, the privacy information to be announced can be encrypted to obtain encrypted information. Therefore, since encryption is already performed in the discovery stage, an attacker cannot acquire a secret key from the ProSe function entity, cannot decrypt private information, cannot complete discovery of the announcer device, and cannot forge the announcer device subsequently, thereby greatly avoiding communication potential safety hazards.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a flow chart illustrating steps of a proximity service based message transmission method according to one embodiment of the present application;
fig. 2 shows a schematic diagram of communication interaction between an announcer device, a listener device, a ProSe function entity and a ProSe application server according to an embodiment of the present application;
FIG. 3 is a flow chart illustrating steps of a proximity service based message transmission method according to one embodiment of the present application;
FIG. 4 is a flowchart illustrating steps of a proximity service based message transmission method according to one embodiment of the present application;
FIG. 5 illustrates an architecture diagram of a proximity services based messaging appliance, according to one embodiment of the present application;
FIG. 6 shows an architecture diagram of a proximity services based messaging appliance, according to an embodiment of the present application;
FIG. 7 illustrates an architecture diagram of a proximity services based messaging appliance, according to one embodiment of the present application;
fig. 8 shows a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the present application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
In a near-domain service open discovery scenario, User Equipment (UE) of an announcer needs to broadcast an unencrypted announcement message, where the announcement message includes near-domain service information and announcer UE identity information, and an attacker can read the announcer UE identity information to forge and track the announcer UE. In the related art, by increasing the replacement frequency of the identity information, even if an attacker acquires the identity information, the acquired identity information is not up to date, so that the announcer UE cannot be forged and tracked. The method is only suitable for the discovery process of the announcer UE, but not for the discovery process of the announcer UE, so that an attacker still can acquire the identity information in the discovery process of the announcer UE, forge and track the identity information, and no matter how low the replacement frequency of the identity information is, if the attacker acquires the identity information in the discovery process, the attacker still can track and forge the announcer UE within a period of time before the identity information is replaced next time, so that data leakage is further caused, and the communication safety hidden danger is caused.
In order to solve the above technical problem, the following describes the technical solution of the present application through a plurality of embodiments.
Fig. 1 is a flow chart schematically illustrating steps of a proximity service based message transmission method in one embodiment of the present application, and as shown in fig. 1, the proximity service based message transmission method may include the following steps:
step S110: responding to an announcer discovery request message sent by announcer equipment, and sending an announcer authorization request message to a ProSe application server, wherein the announcer authorization request message is used for returning an announcer authorization response message after indicating that the ProSe application server authorizes and confirms;
the method in this embodiment is applied to ProSe functional entities. An announcer device is a device that broadcasts an announcement message. The announcement message broadcast by the announcer device may be received by the listener device. A listener device is a device that discovers an announcer device based on an announcement message. The announcer discovery request message is a message for the announcer device to request to be discovered, the announcement discovery request message being sent by the announcer device to the ProSe function entity. The announcer authorization request message is a message for requesting authorization of the ProSe application server. The announcer authorization response message is a message for confirming the announcer authorization request and indicating that it has acquired authorization.
Step S120: and responding to the announcer authorization response message returned by the ProSe application server, and sending an announcer discovery response message to the announcer device, wherein the announcer discovery response message comprises a preset encryption key, and the preset encryption key is used for encrypting the privacy information to be announced by the announcer to obtain encryption information.
Receiving an announcing party authorization response message returned by the ProSe application server, indicating that authorization of the ProSe application server is obtained, at this time, in response to the announcing party authorization response message, the ProSe function entity sends an announcing party discovery response message to the announcing party device, indicating that the announcing party device starts broadcasting the announcing message to be announced, wherein the announcing message to be announced includes privacy information, the privacy information includes identity information of the announcing party device, the identity information is information for identifying the identity of the announcing party device, and the identity information is, for example, a device ID.
In an embodiment of the present application, after the step of sending an announcer discovery response message to the announcer device, the method further includes: receiving a matching report message sent by a listener device, wherein the matching report message is generated by the listener device by using the encryption information announced by the announcer device; obtaining the encryption information from the matching report message; decrypting the encrypted information by adopting a preset decryption key corresponding to the preset encryption key to obtain the privacy information; and sending a matching response message to the monitoring party equipment, wherein the matching response message comprises the privacy information, the privacy information comprises the identity information of the declaration party equipment, and the identity information is used for indicating the monitoring party equipment to finish the identity identification of the declaration party equipment.
After the announcer discovery response message is sent to the announcer device, the announcer device encrypts the privacy information according to a preset encryption key in the announcer discovery response message to obtain encryption information, generates an announcement message including the encryption information, and broadcasts the announcement message to be announced, so that the listener device receives the announcement message broadcast by the announcer device, and if the listener device needs to complete discovery of the announcer device based on the announcement message, the listener device also needs to request the ProSe function entity.
In an embodiment of the present application, before the step of receiving the matching report message sent by the listener device, the method further includes: receiving a listener discovery request message sent by the listener device, where the listener discovery request message is used to instruct the ProSe function entity to send a listener authorization request message; sending a monitoring party authorization request message to the ProSe application server according to the monitoring party discovery request message, wherein the monitoring party authorization request message is used for returning a monitoring party authorization response message after indicating that the ProSe application server is authorized and confirmed; and responding to the listener authorization response message, and sending a listener discovery response message to the listener device, where the listener discovery response message is used to instruct the listener device to generate and send the matching report message, and the matching report message includes the encryption information broadcast by the announcer device.
In a specific scenario, the communication process between the announcing device (announcing UE), the monitoring device (monitoring UE), the ProSe function entity, and the ProSe application server is as follows:
the announcer UE discovers the authorization: the method comprises the steps that an announcer UE sends an announcer discovery request message to a ProSe functional entity to request for broadcasting information which can be discovered, the ProSe functional entity sends an announcer discovery response message to the announcer UE after carrying out authorization confirmation with a ProSe application server, and the announcer discovery response message contains an encryption key and can be used for encrypting privacy information of the announcer UE.
Listener UE discovery authorization: the monitoring party UE sends a monitoring party discovery request message to the ProSe functional entity, the request can discover the announcement message, and the ProSe functional entity sends a monitoring party discovery response message to the monitoring party UE after carrying out authorization confirmation with the ProSe application server.
Listener UE discovery confirmation: and the monitoring party UE receives the announcement message and sends a matching report message to the ProSe functional entity, the ProSe functional entity processes the matching report message, checks and verifies the matching report message, decrypts the privacy information of the announcement party UE contained in the matching report message, sends a matching response message to the monitoring party UE, the matching response message contains the privacy information of the announcement party UE, the discovery of the announcement party UE is completed, and the subsequent work is further carried out.
In an embodiment of the present application, after the step of receiving the matching report message sent by the listener device, the method further includes: checking whether the listener device has a right based on the matching report message; acquiring an announcement message of the announcer equipment from the matching report message, and checking the integrity of the announcement message, wherein the announcement message is generated according to the privacy message, and the announcement message comprises the privacy message; if the monitoring side equipment is checked to have the authority and the integrity meets a preset integrity condition, starting a process of sending the matching response message to the monitoring side equipment; and if the monitoring side equipment does not have the authority or the integrity does not accord with the preset integrity condition, not starting the process of sending the matching response message to the monitoring side equipment.
And after receiving the matching report message, the ProSe functional entity also checks the authority of the monitoring party equipment, verifies the integrity of the declaration message, sends a matching response message to the monitoring party equipment if the monitoring party equipment has the authority and the declaration message is complete, and does not send the matching response message to the monitoring party equipment if the monitoring party equipment does not have the authority or the declaration message is incomplete, so as to ensure the integrity of the message and the authority of the monitoring party equipment and improve the communication quality.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating communication interaction among an announcing device, a monitoring device, a ProSe function entity, and a ProSe application server according to an embodiment of the present application. The following describes a specific technical solution related to the present application with reference to fig. 2.
Wherein, the announcer UE sends an announcer discovery request message to the ProSe functional entity to request broadcasting of information that can be discovered. And after carrying out authorization confirmation with the ProSe application server, the ProSe functional entity sends an announcer discovery response message to the announcer UE, wherein the announcer discovery response message contains an announcer UE privacy encryption key. The announcer UE receives the announcer discovery response message, encrypts the privacy, and broadcasts an announcement message containing the encrypted privacy information and the ProSe application code on the PC5 interface. The listener UE sends a listener discovery request message to the ProSe function entity, requesting that the announcement message can be discovered. And after the authorization confirmation is carried out by the ProSe functional entity and the ProSe application server, a monitor finding response message is sent to the monitor UE. And the monitoring party UE receives the announcement message and sends a matching report message to the ProSe functional entity, wherein the matching report message comprises privacy information of the monitoring party UE, near-field service information of the announcement message, encrypted privacy information of the announcement party UE and the like. And the ProSe functional entity receives the matching report message, checks the authority of the listener UE in the matching report message, verifies the integrity of the declaration message information in the matching report message, and decrypts the declaration UE privacy encryption information in the matching report message. And the ProSe functional entity sends a matching response message to the UE of the listener, the matching response message contains the privacy information of the UE of the announcer, and the UE of the listener completes the discovery of the UE of the announcer so as to perform subsequent work.
By adopting the mode, on the basis of the existing near-field service open type discovery scene, the ProSe functional entity adds an encryption key while sending the announcer UE discovery response message, the announcer UE can encrypt the privacy information of the announcer UE such as identity information by using the encryption key, then the announcer UE broadcasts the announcement message, the listener UE receives the announcement message and sends a matching message to the ProSe functional entity, the ProSe functional entity checks, verifies and decrypts the announcement message and sends the privacy information of the announcer UE to the listener UE, and privacy disclosure of the announcer UE in the discovery process is avoided. The method has high safety and is suitable for the near-domain service communication business with high requirement on privacy protection.
In this embodiment, in the discovery phase of the announcing device, the encrypted information is obtained by encrypting the private information to be announced by the announcing device, so that the private information to be announced is not directly transmitted, but is announced after being encrypted by using an encryption technology with higher security. The method is implemented in the discovery phase of the announcer device, and the announcer device, the ProSe functional entity and the ProSe application server transmit the discovery request and the authorization request in the discovery phase, and the ProSe functional entity returns the encryption key when confirming the authorization response, so that the privacy information to be announced can be encrypted to obtain the encrypted information in each discovery process. Therefore, since encryption is already performed in the discovery stage, an attacker cannot acquire a secret key from the ProSe function entity, cannot decrypt private information, cannot complete discovery of the announcer device, and cannot forge the announcer device subsequently, thereby greatly avoiding communication potential safety hazards.
Figure 3 illustrates a flow chart of steps of a proximity services based message transmission method according to one embodiment of the present application. As shown in fig. 3, the proximity service-based message transmission method includes:
step S210: transmitting an announcer discovery request message to a ProSe function entity, wherein the announcer discovery request message is used for enabling the ProSe function entity to transmit an announcer discovery response message after completing authorization confirmation;
the method in this embodiment is applied to an announcing device that sends an announcing discovery request message to a ProSe function entity if the announcing device needs to be discovered. After the ProSe completes the authorization confirmation, an announcer discovery response message is returned.
Step S220: receiving the announcer discovery response message sent by the ProSe functional entity;
step S230: acquiring a preset encryption key from the announcer discovery response message;
step S240: encrypting the privacy information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information;
step S250: broadcasting an announcement message including the encryption information.
In one embodiment of the present application, the broadcasting of the announcement message including the encryption information includes: broadcasting an announcement message including the encryption information to a listener device on a PC5 interface of the announcer device.
In a specific scenario, the announcing device sends an announcing discovery request message to the ProSe function entity to request for broadcasting information which can be discovered, the ProSe function entity sends an announcing discovery response message to the announcing device after authorization confirmation is carried out by the ProSe application server, the announcing device discovery response message contains an encryption key, and the privacy information of the announcing device is encrypted by adopting the encryption key; the monitoring device sends a monitoring device discovery request message to the ProSe functional entity, the request can discover the announcement message, and the ProSe functional entity sends a monitoring device discovery response message to the monitoring device after authorization confirmation is carried out by the ProSe application server. The monitoring equipment receives the announcement message and sends a matching report message to the ProSe functional entity, the ProSe functional entity processes the matching report message, checks and verifies the matching report message, decrypts the privacy information of the announcement equipment contained in the matching report message, and sends a matching response message to the monitoring equipment, wherein the matching response message contains the privacy information of the announcement equipment, so that the discovery of the announcement equipment is completed, and the subsequent communication is further carried out.
In this embodiment, an announcer discovery request message is sent to a ProSe function entity, where the announcer discovery request message is used to enable the ProSe function entity to send an announcer discovery response message after completing authorization confirmation; receiving the announcer discovery response message sent by the ProSe functional entity; acquiring a preset encryption key from the announcer discovery response message; encrypting the privacy information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information; broadcasting an announcement message including the encryption information. Therefore, the privacy information in the announcement message broadcast by the announcement equipment is encrypted, and in the discovery stage of the announcement equipment, the data obtained by an attacker is encrypted data, does not have a secret key and cannot be decrypted, so that the difficulty of revealing the privacy information is improved, and the potential safety hazard of communication is reduced.
Figure 4 illustrates a flow chart of steps of a proximity services based message transmission method according to one embodiment of the present application. As shown in fig. 4, the proximity service-based message transmission method includes:
step S310: sending a monitor finding request message to a ProSe functional entity, wherein the monitor finding request message is used for sending a monitor authorization response message after the ProSe functional entity completes authorization confirmation;
step S320: receiving an announcement message broadcasted by an announcement device in response to the listener authorization response message sent by the ProSe functional entity;
step S330: obtaining encryption information from the announcement message;
step S340: sending a matching report message including the encryption information to the ProSe functional entity, wherein the matching report message is used for enabling the ProSe functional entity to decrypt the encryption information to obtain the privacy information of the announcer equipment and returning the privacy information;
step S350: receiving the privacy information returned by the ProSe functional entity;
step S360: completing discovery of the announcer device based on the privacy information, the privacy information including identity information of the announcer device.
In a specific scenario, the announcing device sends an announcing discovery request message to the ProSe function entity to request for broadcasting information which can be discovered, the ProSe function entity sends an announcing discovery response message to the announcing device after authorization confirmation is carried out by the ProSe application server, the announcing device discovery response message contains an encryption key, and the privacy information of the announcing device is encrypted by adopting the encryption key; the monitoring device sends a monitoring device discovery request message to the ProSe functional entity, the request can discover the announcement message, and the ProSe functional entity sends a monitoring device discovery response message to the monitoring device after authorization confirmation is carried out by the ProSe application server. The monitoring equipment receives the announcement message and sends a matching report message to the ProSe functional entity, the ProSe functional entity processes the matching report message, checks and verifies the matching report message, decrypts the privacy information of the announcement equipment contained in the matching report message, and sends a matching response message to the monitoring equipment, wherein the matching response message contains the privacy information of the announcement equipment, so that the discovery of the announcement equipment is completed, and the subsequent communication is further carried out.
If an attacker needs to acquire the privacy information of the announcer device, after the attacker receives the announcement message of the announcer device, the attacker cannot identify the identity of the announcer device according to the encrypted information in the announcement message, so that the attacker cannot track and forge the announcer device, and privacy disclosure can be avoided.
In this embodiment, a listener discovery request message is sent to a ProSe function entity, where the listener discovery request message is used to enable the ProSe function entity to send a listener authorization response message after completing authorization confirmation; receiving an announcement message broadcasted by an announcement device in response to the listener authorization response message sent by the ProSe functional entity; obtaining encryption information from the announcement message; sending a matching report message including the encryption information to the ProSe functional entity, wherein the matching report message is used for enabling the ProSe functional entity to decrypt the encryption information to obtain the privacy information of the announcer equipment and returning the privacy information; receiving the privacy information returned by the ProSe functional entity; completing discovery of the announcer device based on the privacy information, the privacy information including identity information of the announcer device. Therefore, the monitoring equipment can complete the discovery of the declaration equipment in a relatively safe communication environment, privacy disclosure can be reduced while the declaration equipment is discovered, and the potential communication safety hazard is reduced.
Fig. 5 illustrates a proximity service based message transmission apparatus according to one embodiment of the present application, the apparatus comprising:
a first transmission module 410, which sends an announcer authorization request message to the ProSe application server in response to an announcer discovery request message sent by an announcer device, where the announcer authorization request message is used to indicate that the ProSe application server returns an announcer authorization response message after authorization confirmation;
a second transmission module 420, configured to send an announcing party discovery response message to the announcing party device in response to the announcing party authorization response message returned by the ProSe application server, where the announcing party discovery response message includes a preset encryption key, and the preset encryption key is used to encrypt the privacy information to be announced by the announcing party to obtain encrypted information.
In an exemplary embodiment of the present application, the apparatus is configured to:
receiving a matching report message sent by a listener device, wherein the matching report message is generated by the listener device by using the encryption information announced by the announcer device;
obtaining the encryption information from the matching report message;
decrypting the encrypted information by adopting a preset decryption key corresponding to the preset encryption key to obtain the privacy information;
and sending a matching response message to the monitoring party equipment, wherein the matching response message comprises the privacy information, the privacy information comprises the identity information of the declaration party equipment, and the identity information is used for indicating the monitoring party equipment to finish the identity identification of the declaration party equipment.
In an exemplary embodiment of the present application, the apparatus is configured to:
receiving a listener discovery request message sent by the listener device, where the listener discovery request message is used to instruct the ProSe function entity to send a listener authorization request message;
sending a monitoring party authorization request message to the ProSe application server according to the monitoring party discovery request message, wherein the monitoring party authorization request message is used for returning a monitoring party authorization response message after indicating that the ProSe application server is authorized and confirmed;
and responding to the listener authorization response message, and sending a listener discovery response message to the listener device, where the listener discovery response message is used to instruct the listener device to generate and send the matching report message, and the matching report message includes the encryption information broadcast by the announcer device.
In an exemplary embodiment of the present application, the apparatus is configured to:
checking whether the listener device has a right based on the matching report message;
acquiring an announcement message of the announcer equipment from the matching report message, and checking the integrity of the announcement message, wherein the announcement message is generated according to the privacy message, and the announcement message comprises the privacy message;
if the monitoring side equipment is checked to have the authority and the integrity meets a preset integrity condition, starting a process of sending the matching response message to the monitoring side equipment;
and if the monitoring side equipment does not have the authority or the integrity does not meet the preset integrity condition, not starting the process of sending the matching response message to the monitoring side equipment.
Fig. 6 illustrates a proximity service based message transmission apparatus according to one embodiment of the present application, the apparatus comprising:
a first sending module 510, configured to send an announcer discovery request message to a ProSe function entity, where the announcer request message is used to enable the ProSe function entity to send an announcer discovery response message after completing authorization confirmation;
a first receiving module 520, configured to receive the announcer discovery response message sent by the ProSe function entity;
a first obtaining module 530, configured to obtain a preset encryption key from the announcer discovery response message;
the encryption module 540 is configured to encrypt the privacy information of the announcing party device by using the preset encryption key to obtain encrypted information;
a broadcasting module 550 for broadcasting an announcement message including the encryption information.
In an exemplary embodiment of the present application, the apparatus is configured to:
broadcasting an announcement message including the encryption information to a listener device on a PC5 interface of the announcer device.
Fig. 7 illustrates a proximity service based message transmission apparatus according to one embodiment of the present application, the apparatus comprising:
a second sending module 610, configured to send a monitor discovery request message to a ProSe function entity, where the monitor discovery request message is used to enable the ProSe function entity to send a monitor authorization response message after completing authorization confirmation;
a second receiving module 620, configured to receive an announcement message broadcast by an announcer device in response to the listener authorization response message sent by the ProSe function entity;
a second obtaining module 630, configured to obtain encryption information from the announcement message;
a third sending module 640, configured to send a matching report message including the encrypted information to the ProSe function entity, where the matching report message is used to enable the ProSe function entity to decrypt the encrypted information, obtain the privacy information of the announcement party device, and return the privacy information;
a third receiving module 650, configured to receive the privacy information returned by the ProSe function entity;
a discovery module 660 configured to complete discovery of the announcer device based on the privacy information, where the privacy information includes identity information of the announcer device.
An electronic device 70 according to an embodiment of the present application is described below with reference to fig. 8. The electronic device 70 shown in fig. 8 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 8, electronic device 70 is embodied in the form of a general purpose computing device. The components of the electronic device 70 may include, but are not limited to: the at least one processing unit 710, the at least one memory unit 720, and a bus 730 that couples various system components including the memory unit 720 and the processing unit 710.
Wherein the storage unit stores program code executable by the processing unit 710 to cause the processing unit 710 to perform steps according to various exemplary embodiments of the present invention described in the description part of the above exemplary methods of the present specification. For example, the processing unit 710 may perform various steps as shown in fig. 1.
The storage unit 720 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM)7201 and/or a cache memory unit 7202, and may further include a read only memory unit (ROM) 7203.
The storage unit 720 may also include a program/utility 7204 having a set (at least one) of program modules 7205, such program modules 7205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The electronic device 70 may also communicate with one or more external devices 800 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 70, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 70 to communicate with one or more other computing devices. Such communication may occur via an input/output (I/O) interface 750. An input/output (I/O) interface 750 is connected to the display unit 740. Also, the electronic device 70 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 760. As shown, the network adapter 760 communicates with the other modules of the electronic device 70 via the bus 730. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 30, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to make a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiments of the present application.
In an exemplary embodiment of the present application, there is also provided a computer-readable storage medium having stored thereon computer-readable instructions which, when executed by a processor of a computer, cause the computer to perform the method described in the above method embodiment section.
According to an embodiment of the present application, there is also provided a program product for implementing the method in the above method embodiment, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as JAVA, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods herein are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
Claims (10)
1. A proximity services based message transmission method applied to a proximity services ProSe function entity, the method comprising:
responding to an announcer discovery request message sent by announcer equipment, and sending an announcer authorization request message to a ProSe application server, wherein the announcer authorization request message is used for returning an announcer authorization response message after indicating that the ProSe application server authorizes and confirms;
and responding to the announcer authorization response message returned by the ProSe application server, and sending an announcer discovery response message to the announcer device, wherein the announcer discovery response message comprises a preset encryption key, and the preset encryption key is used for encrypting the privacy information to be announced by the announcer to obtain encryption information.
2. The method of claim 1, wherein after the step of sending an announcer discovery response message to the announcer device, the method further comprises:
receiving a matching report message sent by a listener device, wherein the matching report message is generated by the listener device by using the encryption information announced by the announcer device;
obtaining the encryption information from the matching report message;
decrypting the encrypted information by adopting a preset decryption key corresponding to the preset encryption key to obtain the privacy information;
and sending a matching response message to the monitoring party equipment, wherein the matching response message comprises the privacy information, the privacy information comprises the identity information of the declaration party equipment, and the identity information is used for indicating the monitoring party equipment to finish the identity identification of the declaration party equipment.
3. The method of claim 2, wherein the step of receiving the match report message sent by the listener device is preceded by:
receiving a listener discovery request message sent by the listener device, where the listener discovery request message is used to instruct the ProSe function entity to send a listener authorization request message;
sending a monitoring party authorization request message to the ProSe application server according to the monitoring party discovery request message, wherein the monitoring party authorization request message is used for returning a monitoring party authorization response message after indicating that the ProSe application server is authorized and confirmed;
and responding to the listener authorization response message, and sending a listener discovery response message to the listener device, where the listener discovery response message is used to instruct the listener device to generate and send the matching report message, and the matching report message includes the encryption information broadcast by the announcer device.
4. The method of claim 2, wherein after the step of receiving a match report message sent by a listener device, the method further comprises:
checking whether the listener device has a right based on the matching report message;
acquiring an announcement message of the announcer equipment from the matching report message, and checking the integrity of the announcement message, wherein the announcement message is generated according to the privacy message, and the announcement message comprises the privacy message;
if the monitoring side equipment is checked to have the authority and the integrity meets a preset integrity condition, starting a process of sending the matching response message to the monitoring side equipment;
and if the monitoring side equipment does not have the authority or the integrity does not meet the preset integrity condition, not starting the process of sending the matching response message to the monitoring side equipment.
5. A message transmission method based on proximity service, which is applied to an announcer device, and comprises the following steps:
sending an announcer discovery request message to a ProSe functional entity, wherein the announcer discovery request message is used for enabling the ProSe functional entity to send an announcer discovery response message after completing authorization confirmation;
receiving the announcer discovery response message sent by the ProSe functional entity;
acquiring a preset encryption key from the announcer discovery response message;
encrypting the privacy information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information;
broadcasting an announcement message including the encryption information.
6. The method of claim 5, wherein the broadcasting the announcement message including the encryption information comprises:
broadcasting an announcement message including the encryption information to a listener device on a PC5 interface of the announcer device.
7. A message transmission method based on proximity service is characterized in that the method is applied to a listener device and comprises the following steps:
sending a monitor finding request message to a ProSe functional entity, wherein the monitor finding request message is used for sending a monitor authorization response message after the ProSe functional entity completes authorization confirmation;
receiving an announcement message broadcasted by an announcement device in response to the listener authorization response message sent by the ProSe functional entity;
obtaining encryption information from the announcement message;
sending a matching report message including the encryption information to the ProSe functional entity, wherein the matching report message is used for enabling the ProSe functional entity to decrypt the encryption information to obtain the privacy information of the announcer equipment and returning the privacy information;
receiving the privacy information returned by the ProSe functional entity;
completing discovery of the announcer device based on the privacy information, the privacy information including identity information of the announcer device.
8. A proximity services based message transmission apparatus, comprising:
the first transmission module responds to an announcer discovery request message sent by announcer equipment, and sends an announcer authorization request message to the ProSe application server, wherein the announcer authorization request message is used for indicating the ProSe application server to return an announcer authorization response message after authorization confirmation;
a second transmission module, configured to send an announcer discovery response message to the announcer device in response to the announcer authorization response message returned by the ProSe application server, where the announcer discovery response message includes a preset encryption key, and the preset encryption key is used to encrypt the privacy information to be announced by the announcer to obtain encrypted information;
alternatively, the proximity service-based message transmission apparatus includes:
a first sending module, configured to send an announcer discovery request message to a ProSe function entity, where the announcer discovery request message is used to enable the ProSe function entity to send an announcer discovery response message after completing authorization confirmation;
a first receiving module, configured to receive the announcer discovery response message sent by the ProSe function entity;
a first obtaining module, configured to obtain a preset encryption key from the announcer discovery response message;
the encryption module is used for encrypting the privacy information of the declaration side equipment by adopting the preset encryption key to obtain encrypted information;
a broadcasting module for broadcasting an announcement message including the encryption information;
alternatively, the proximity service-based message transmission apparatus includes:
a second sending module, configured to send a listener discovery request message to a ProSe function entity, where the listener discovery request message is used to enable the ProSe function entity to send a listener authorization response message after completing authorization confirmation;
a second receiving module, configured to receive, in response to the listener authorization response message sent by the ProSe function entity, an announcement message broadcast by an announcement device;
the second acquisition module is used for acquiring the encryption information from the announcement message;
a third sending module, configured to send a matching report message including the encryption information to the ProSe function entity, where the matching report message is used to enable the ProSe function entity to decrypt the encryption information, obtain the privacy information of the announcement party device, and return the privacy information;
a third receiving module, configured to receive the privacy information returned by the ProSe function entity;
a discovery module configured to complete discovery of the announcer device based on the privacy information, where the privacy information includes identity information of the announcer device.
9. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to carry out the method of any one of claims 1 to 7.
10. A computer-readable storage medium having stored thereon computer-readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any one of claims 1 to 7.
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