CN106850602B - Vehicle communication method, terminal, server and system - Google Patents
Vehicle communication method, terminal, server and system Download PDFInfo
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- CN106850602B CN106850602B CN201710042286.3A CN201710042286A CN106850602B CN 106850602 B CN106850602 B CN 106850602B CN 201710042286 A CN201710042286 A CN 201710042286A CN 106850602 B CN106850602 B CN 106850602B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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Abstract
The application discloses a vehicle communication method, a terminal, a server and a system, wherein the method comprises the following steps: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different; and processing the vehicle running information of the current target vehicle by utilizing the characteristic information corresponding to the current conventional message sending process to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center. The protection of the driving privacy of the vehicle owner in LTE V2X communication is strengthened.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to a vehicle communication method, a terminal, a server and a system.
Background
Currently, LTE (Long Term Evolution) has brought car networking communication into a standardization scope, and communication between a vehicle and other external devices such as external vehicles, pedestrian handheld devices or roadside devices is referred to as LTE V2X communication in related specifications.
In LTE V2X communication, in order to improve the safety of vehicle driving, a vehicle is required to periodically broadcast a message including driving information such as its current position, current driving rate, and current traffic condition, so that other peripheral devices can know the current driving situation of the vehicle in time. In addition, in order to prevent the vehicle from maliciously broadcasting the false message, the LTE V2X standard stipulates that the vehicle should sign the message with a fixed legal signing key acquired in advance before broadcasting the message to obtain a signed message, and then broadcast the signed message. However, the external device may determine which messages are from the same vehicle according to whether the signature keys corresponding to the messages received by the external device are the same, and then based on the messages from the same vehicle, real-time tracking of the vehicle may be achieved, so that detailed driving information of the vehicle owner is exposed to the public, and thus driving privacy of the vehicle owner is damaged.
In summary, it can be seen that how to strengthen the protection of the driving privacy of the vehicle owner in the LTE V2X communication is an urgent problem to be solved at present.
Disclosure of Invention
In view of the above, the present invention is directed to a vehicle communication method, a terminal, a server and a system, which are beneficial to enhancing the protection of driving privacy of an owner in LTE V2X communication. The specific scheme is as follows:
a vehicle communication method, comprising:
when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different;
utilizing the characteristic information corresponding to the current conventional message sending process to perform information processing on the vehicle running information of the current target vehicle to obtain a conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center;
the external message center is located on an external device or on a server capable of communicating with the external device.
Optionally, the external device comprises an external vehicle and/or roadside fixed installation device and/or a pedestrian handheld device.
Optionally, the process of performing information processing on the vehicle driving information of the current target vehicle by using the feature information corresponding to the current conventional message sending process includes:
and digitally signing the vehicle running information of the current target vehicle by using the signature key corresponding to the current conventional message sending process to obtain the conventional message corresponding to the current conventional message sending process.
Optionally, each set of feature information in the feature information set further includes an identifier uniquely corresponding to the feature information of the set;
correspondingly, the process of performing information processing on the vehicle driving information of the current target vehicle by using the feature information corresponding to the current conventional message sending process includes:
carrying out digital signature on the vehicle running information of the current target vehicle by using a signature key corresponding to the conventional message sending process to obtain a corresponding digital signature message;
and adding the identifier corresponding to the conventional message sending process to the digital signature message to obtain the conventional message corresponding to the conventional message sending process.
Optionally, the method further includes:
determining a group of characteristic information from the characteristic information set to obtain target characteristic information;
step A2: and performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current trackability message, and sending the trackability message to the external message center so that the external message center tracks the target vehicle according to the acquired trackability message.
Optionally, the method further includes:
determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
determining necessary node information corresponding to the target conventional message set by using a tree structure of a target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance;
and sending the necessary node information to the external message center, so that the external message center calculates a corresponding root hash value by using the identifier of the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result.
Optionally, the method further includes:
determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
extracting all identifiers in the target conventional message set to obtain a target identifier set;
and sending the target identifier set to the outside message center, so that the outside message center screens out conventional messages corresponding to each identifier in the target identifier set from all the received conventional messages, and tracks the target vehicle according to all the screened conventional messages.
The invention also correspondingly discloses a vehicle communication terminal, which comprises:
the first information determining module is used for determining a group of characteristic information from the pre-obtained characteristic information set when a conventional message sending instruction is obtained, and obtaining the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different;
the first information processing module is used for processing the vehicle running information of the current target vehicle by utilizing the characteristic information corresponding to the current conventional message sending process to obtain a conventional message corresponding to the current conventional message sending process and sending the conventional message to an external message center;
the external message center is located on an external device or on a server capable of communicating with the external device.
Optionally, the external device comprises an external vehicle and/or roadside fixed installation device and/or a pedestrian handheld device.
Optionally, the first information processing module is specifically configured to perform digital signature on the vehicle driving information of the current target vehicle by using a signature key corresponding to the current conventional message sending process, so as to obtain a conventional message corresponding to the current conventional message sending process.
Optionally, each set of feature information in the feature information set further includes an identifier uniquely corresponding to the feature information of the set;
correspondingly, the first information processing module includes:
the first signature unit is used for digitally signing the current vehicle driving information of the target vehicle by using a signature key corresponding to the current conventional message sending process to obtain a corresponding digital signature message;
and the first adding unit is used for adding the identifier corresponding to the current conventional message sending process to the digital signature message to obtain the conventional message corresponding to the current conventional message sending process.
Optionally, the vehicle communication terminal further includes:
the second information determining module is used for determining a group of characteristic information from the characteristic information set to obtain target characteristic information;
and the second information processing module is used for performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current traceability message and sending the traceability message to the external message center so that the external message center can track the target vehicle according to the acquired traceability message.
Optionally, the vehicle communication terminal further includes:
the third information determining module is used for determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
the fourth information determining module is used for determining necessary node information corresponding to the target conventional message set by utilizing the tree structure of the target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance;
and the node information sending unit is used for sending the necessary node information to the external message center so that the external message center calculates a corresponding root hash value by utilizing the identifier in the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result.
Optionally, the vehicle communication terminal further includes:
the fifth information determining module is used for determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
the identifier extraction unit is used for extracting all identifiers in the target conventional message set to obtain a target identifier set;
and the identifier sending unit is used for sending the target identifier set to the outside message center so as to enable the outside message center to screen out the conventional message corresponding to each identifier in the target identifier set from all the received conventional messages, and track the target vehicle according to all the screened conventional messages.
In the present invention, a vehicle communication method includes: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different; utilizing the characteristic information corresponding to the current conventional message sending process to perform information processing on the vehicle running information of the current target vehicle to obtain a conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center; wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
Therefore, in the invention, each time a conventional message sending instruction is obtained, a group of characteristic information is determined from the characteristic information set obtained in advance, so that the characteristic information corresponding to the conventional message sending process is obtained, and the characteristic information corresponding to any two conventional message sending processes is different, so that after the external message center obtains a plurality of conventional messages corresponding to the target vehicle, because the signature keys corresponding to each conventional message are different, the external message center cannot realize real-time tracking of the target vehicle based on whether the signature keys are the same, namely, the invention strengthens the protection of the driving privacy of a vehicle owner in the LTE V2X communication.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a vehicle communication method disclosed in an embodiment of the present invention;
FIG. 2 is a flowchart of a vehicle communication method disclosed in an embodiment of the present invention;
FIG. 3 is a flowchart of a vehicle communication method disclosed in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a target hash tree according to an embodiment of the present invention;
FIG. 5 is a flowchart of a vehicle communication method disclosed in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a vehicle communication terminal according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of a vehicle communication terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a vehicle communication method, which is shown in figure 1 and comprises the following steps:
step S11: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
In this embodiment, the feature information set may be obtained from a preset unified authorization center, specifically, a feature information request instruction may be sent to the unified authorization center in advance, and when the unified authorization center verifies the feature information request instruction and passes the verification, the feature information set issued by the unified authorization center will be obtained. It is understood that the unified authorization center verifies the characteristic information request command, and essentially verifies the validity of the sender of the command.
In this embodiment, the number of the feature information in the feature information set may be specifically set based on actual application needs, for example, the feature information set may include 1000 sets of feature information, and each set of feature information is different from each other, after a new conventional message sending instruction is obtained, one set of feature information is determined from the feature information set, after another new conventional message sending instruction is obtained, the next set of feature information is determined from the feature information set, and so on, so as to ensure that the feature information corresponding to any two conventional message sending processes is different.
It can be understood that, according to a preset update period, the unified authorization center may periodically update the feature information set acquired in advance.
It should be noted that the above-mentioned conventional message sending instruction may specifically be an instruction triggered automatically by the target vehicle, or an instruction triggered by a driver or a passenger on the current target vehicle through a preset trigger button.
Step S12: and processing the vehicle running information of the current target vehicle by utilizing the characteristic information corresponding to the current conventional message sending process to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center.
In this embodiment, the external message center may be specifically located on an external device or on a server capable of communicating with the external device. It can be understood that, in the case that the external message center is located in the server, after the external message center acquires the conventional message, the conventional message may be sent to the external device. In this embodiment, the external device may specifically include, but is not limited to, an external vehicle and/or a roadside fixed installation device and/or a handheld device for pedestrians on the road.
It can be understood that, in this embodiment, the processes of performing information processing on the vehicle travel information of the current target vehicle each include a process of digitally signing the vehicle travel information by using a signature key in the feature information, where the signature keys in this embodiment each include a public key and a private key. In addition, in this embodiment, specifically, the vehicle driving information of the current target vehicle is digitally signed by using a private key in a signature key of the feature information, and a public key of the signature key needs to be embedded in a message obtained after the digital signature processing.
In this embodiment, the vehicle travel information of the current target vehicle may specifically include, but is not limited to, a vehicle position, a travel speed, and current traffic condition information of the current target vehicle.
In addition, the present embodiment may set the unified authorization center on the server.
It can be seen that, in the embodiment of the present invention, each time a conventional message sending instruction is obtained, a group of feature information is determined from the feature information set obtained in advance, so as to obtain the feature information corresponding to the current conventional message sending process, and the feature information corresponding to any two conventional message sending processes is different, so that after an external message center obtains multiple conventional messages corresponding to a target vehicle, because signature keys corresponding to each conventional message are different, the external message center cannot realize real-time tracking of the target vehicle based on whether the signature keys are the same, that is, the embodiment of the present invention strengthens protection of driving privacy of a vehicle owner in LTE V2X communication.
Referring to fig. 2, an embodiment of the present invention discloses a specific vehicle communication method, including the following steps:
step S21: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
Step S22: and digitally signing the vehicle driving information of the current target vehicle by using the signature key corresponding to the current conventional message sending process to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center.
It is understood that, in the above-described conventional message transmission process, since the signature key used each time the conventional message is generated is different, the travel trace of the above-described target vehicle can be made to have a very high confidentiality. Of course, in consideration of the fact that it is necessary to enable the outside to realize real-time tracking of the target vehicle in an emergency such as runaway and distress of the target vehicle, the vehicle communication method in this embodiment may further include: determining a group of characteristic information from the characteristic information set to obtain target characteristic information, performing information processing on current vehicle driving information of the target vehicle by using the target characteristic information to obtain a current traceability message, and sending the traceability message to an external message center so that the external message center tracks the target vehicle according to the acquired traceability message, which specifically comprises the following steps of A1-A3:
step A1: and if the track active public mode is started, determining a group of characteristic information from the characteristic information set to obtain target characteristic information.
Step A2: and performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current trackability message, and sending the trackability message to an external message center.
Specifically, the present embodiment may use the signature key in the target feature information to digitally sign the current vehicle driving information of the target vehicle, so as to obtain the current traceability message.
Step A3: and repeating the step A2, so that the external message center tracks the target vehicle according to the acquired traceability message until the active track disclosure mode is closed.
That is, in the case that the outside needs to track the target vehicle, the active track disclosure mode may be started, and then a plurality of sets of trackability messages are sent to the outside message center, and the corresponding feature information is the same set of feature information when each set of trackability messages is generated, that is, the signature keys used when the current vehicle driving information of the target vehicle is digitally signed to obtain the trackability messages are the same key, so that the outside message center may implement real-time tracking of the target vehicle based on whether the signature keys are the same.
Referring to fig. 3, the embodiment of the invention discloses a specific vehicle communication method, which comprises the following steps:
step S31: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key and an identifier which are uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
It is understood that, in the present embodiment, the signature key and the identifier are different between different feature information in the feature information set.
Step S32: and digitally signing the vehicle running information of the current target vehicle by using the signature key corresponding to the conventional message sending process to obtain a corresponding digitally signed message.
Step S33: and adding the identifier corresponding to the current conventional message sending process to the digital signature message to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center.
It is understood that, in the above-described conventional message transmission process, since the signature key used each time the conventional message is generated is different, the travel trace of the above-described target vehicle can be made to have a very high confidentiality. Of course, in consideration of the fact that it is necessary to enable the outside to realize real-time tracking of the target vehicle in emergency situations such as runaway and distress of the target vehicle, the vehicle communication method in this embodiment may further specifically include the following steps a1 to A3:
step A1: and if the track active public mode is started, determining a group of characteristic information from the characteristic information set to obtain target characteristic information.
Step A2: and performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current trackability message, and sending the trackability message to an external message center.
Specifically, the present embodiment may use the signature key in the target feature information to digitally sign the current vehicle driving information of the target vehicle, so as to obtain the current traceability message.
Step A3: and repeating the step A2, so that the external message center tracks the target vehicle according to the acquired traceability message until the active track disclosure mode is closed.
That is, in the case that the outside needs to track the target vehicle, the active track disclosure mode may be started, and then a plurality of sets of trackability messages are sent to the outside message center, and the corresponding feature information is the same set of feature information when each set of trackability messages is generated, that is, the signature keys used when the current vehicle driving information of the target vehicle is digitally signed to obtain the trackability messages are the same key, so that the outside message center may implement real-time tracking of the target vehicle based on whether the signature keys are the same.
Of course, in addition to the above steps a1 to A3 to realize real-time tracking of the target vehicle, the following steps B1 to B3 may also be used in the embodiment of the present invention to realize real-time tracking of the target vehicle:
step B1: if the track active publishing mode is started, all the regular messages which have been sent in the past preset historical time period are determined, and a target regular message set is obtained.
It is understood that the preset historical time period may be specifically set based on actual application requirements, and may be set to 1 hour or half an hour, for example.
Step B2: determining necessary node information corresponding to the target conventional message set by using the tree structure of the target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance.
Step B3: and sending the necessary node information to an external message center, so that the external message center calculates a corresponding root hash value by utilizing the identifier of the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result. It can be understood that, before the step B3 is performed, the root hash value on the target hash tree needs to be sent to the external message center in advance, and specifically, the root hash value on the target hash tree may be sent to the external message center while the trace active disclosure mode is started.
For example, a specific structure of the target hash tree is shown in fig. 4, and assuming that the target regular message set includes a message 1, a message 2, and a message 3, where identifiers corresponding to the message 1, the message 2, and the message 3 are an identifier 1, an identifier 2, and an identifier 3, respectively, it may be determined that the necessary node information corresponding to the target regular message set specifically includes an identifier 4 and a hash value 22 based on the tree structure of the target hash tree. After the external message center receives the necessary node information, the hash value 11 is calculated by using the identifier 1 and the identifier 2, the hash value 12 is calculated by using the identifier 3 and the identifier 4, the hash value 21 is calculated by using the hash value 11 and the hash value 12, the root hash value is calculated by using the hash value 21 and the hash value 22 in the necessary node information, the calculated root hash value is compared with the root hash value on the target hash tree, if the calculated root hash value is consistent with the root hash value, the message 1, the message 2 and the message 3 received by the external message center are messages corresponding to the same vehicle, and then the tracking of the target vehicle can be realized by using the message 1, the message 2 and the message 3.
Of course, in addition to the steps a1 to A3 or the steps B1 to B3 to implement real-time tracking of the target vehicle, the following steps C1 to C3 may also be used in the present embodiment to implement real-time tracking of the target vehicle:
step C1: if the track active publishing mode is started, all the regular messages which have been sent in the past preset historical time period are determined, and a target regular message set is obtained.
Step C2: and extracting all identifiers in the target conventional message set to obtain a target identifier set.
Step C3: and sending the target identifier set to an external message center, so that the external message center screens out conventional messages corresponding to each identifier in the target identifier set from all the received conventional messages, and tracking the target vehicle according to all the screened conventional messages.
Referring to fig. 5, an embodiment of the present invention discloses a specific vehicle communication method, including the following steps:
step S41: when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key, an identifier and legal signature information which are uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
In addition, the valid signature information in each set of feature information is specifically signature information obtained by digitally signing the signature key and the identifier in the set of feature information by using a valid authorization key.
Step S42: and digitally signing the vehicle running information of the current target vehicle by using the signature key corresponding to the conventional message sending process to obtain a corresponding digitally signed message.
Step S43: and adding the identifier corresponding to the conventional message sending process and the legal signature information to the digital signature message to obtain the conventional message corresponding to the conventional message sending process, and sending the conventional message to an external message center.
Correspondingly, the embodiment of the present invention further discloses a vehicle communication terminal, as shown in fig. 6, the terminal includes:
the first information determining module 11 is configured to determine a group of feature information from a set of pre-obtained feature information whenever a conventional message sending instruction is obtained, so as to obtain feature information corresponding to the current conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different;
the first information processing module 12 is configured to perform information processing on the vehicle driving information of the current target vehicle by using the feature information corresponding to the current conventional message sending process to obtain a conventional message corresponding to the current conventional message sending process, and send the conventional message to an external message center;
wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
In particular, the external equipment can comprise external vehicles and/or roadside fixed installation equipment and/or road pedestrian handheld equipment.
It can be seen that, in the embodiment of the present invention, each time a conventional message sending instruction is obtained, a group of feature information is determined from the feature information set obtained in advance, so as to obtain the feature information corresponding to the current conventional message sending process, and the feature information corresponding to any two conventional message sending processes is different, so that after an external message center obtains multiple conventional messages corresponding to a target vehicle, because signature keys corresponding to each conventional message are different, the external message center cannot realize real-time tracking of the target vehicle based on whether the signature keys are the same, that is, the embodiment of the present invention strengthens protection of driving privacy of a vehicle owner in LTE V2X communication.
The embodiment of the invention discloses a specific vehicle communication terminal, which comprises a first information determining module and a first information processing module; wherein the content of the first and second substances,
the first information determining module is used for determining a group of characteristic information from the pre-obtained characteristic information set when a conventional message sending instruction is obtained, and obtaining the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
The first information processing module is used for digitally signing the vehicle driving information of the current target vehicle by using the signature key corresponding to the current conventional message sending process to obtain a conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center;
wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
The embodiment of the invention discloses a specific vehicle communication terminal, which comprises a first information determining module and a first information processing module; wherein the content of the first and second substances,
the first information determining module is used for determining a group of characteristic information from the pre-obtained characteristic information set when a conventional message sending instruction is obtained, and obtaining the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key and an identifier which are uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
The first information processing module specifically comprises a first signature unit and a first adding unit; wherein the content of the first and second substances,
the first signature unit is used for digitally signing the vehicle running information of the current target vehicle by using a signature key corresponding to the current conventional message sending process to obtain a corresponding digital signature message;
and the first adding unit is used for adding the identifier corresponding to the current conventional message sending process to the digital signature message to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center.
Wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
The embodiment of the invention discloses a specific vehicle communication terminal, which comprises a first information determining module and a first information processing module; wherein the content of the first and second substances,
the first information determining module is used for determining a group of characteristic information from the pre-obtained characteristic information set when a conventional message sending instruction is obtained, and obtaining the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key, an identifier and legal signature information which are uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different.
The legal signature information in each group of characteristic information is signature information obtained by digitally signing the signature key and the identifier in the group of characteristic information by using a legal authorization key.
The first information processing module may specifically include a second signature unit and a second adding unit; wherein the content of the first and second substances,
the second signature unit is used for digitally signing the vehicle running information of the current target vehicle by using the signature key corresponding to the current conventional message sending process to obtain a corresponding digital signature message;
and the second adding unit is used for adding the identifier and the legal signature information corresponding to the current conventional message sending process to the digital signature message to obtain the conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center.
Wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
In this embodiment, the vehicle communication terminal may further include a second information determining module, configured to determine a group of feature information from the feature information set to obtain target feature information; and the second information processing module is used for processing the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current traceability message and sending the traceability message to the external message center so that the external message center can track the target vehicle according to the acquired traceability message.
In this embodiment, the second information determining module may be specifically configured to determine a group of feature information from the feature information set to obtain target feature information when the active track disclosure mode is started;
the second information processing module is specifically configured to perform information processing on current vehicle driving information of the target vehicle by using the target feature information to obtain a current trackability message, and send the trackability message to an external message center;
in addition, the vehicle communication terminal in this embodiment further includes a loop control module, which is specifically configured to repeatedly start a working process of the second information processing module, so that the external message center tracks the target vehicle according to the acquired trackability message until the active track disclosure mode is turned off.
In this embodiment, the vehicle communication terminal may further include:
the third information determining module is used for determining all the conventional messages which have been sent in the past preset historical time period when the active track publishing mode is started, so as to obtain a target conventional message set;
the fourth information determining module is used for determining necessary node information corresponding to the target conventional message set by utilizing the tree structure of the target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance;
and the node information sending unit is used for sending the necessary node information to an external message center so that the external message center calculates a corresponding root hash value by utilizing the identifier of the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result.
In this embodiment, the vehicle communication terminal may further include:
the fifth information determining module is used for determining all the conventional messages which have been sent in the past preset historical time period when the active track publishing mode is started, so as to obtain a target conventional message set;
the identifier extraction unit is used for extracting all identifiers in the target conventional message set to obtain a target identifier set;
and the identifier sending unit is used for sending the target identifier set to the outside message center so as to enable the outside message center to screen out the conventional messages corresponding to each identifier in the target identifier set from all the received conventional messages, and track the target vehicle according to all the screened conventional messages.
In addition, the invention also discloses a vehicle communication server which comprises the external message center disclosed in the embodiment. For the specific structure and working process of the external message center, reference may be made to the corresponding contents disclosed in the foregoing embodiments, and details are not repeated here.
Further, the invention also discloses a vehicle communication system which comprises the vehicle communication terminal and the vehicle communication server which are already disclosed. For the specific configurations of the vehicle communication terminal and the vehicle communication server, reference may be made to the corresponding contents disclosed in the foregoing, and details are not repeated here.
The embodiment of the present invention further discloses a vehicle communication terminal, as shown in fig. 7, the vehicle communication terminal includes:
a processor 21 and a memory 22;
the processor 21 is configured to, by calling the operation instruction stored in the memory 22, execute the following steps:
when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different; utilizing the characteristic information corresponding to the current conventional message sending process to perform information processing on the vehicle running information of the current target vehicle to obtain a conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center; wherein, the external message center is positioned on the external equipment or on a server which can communicate with the external equipment.
It is understood that the vehicle communication terminal in the present embodiment further includes a communication chip 23, a power supply 24, a display 25, an output device 26, and an input device 27.
It is understood that, in the present embodiment, the number of the processors, the memories, the communication chips, the power supplies, the display screens, the output devices, and the input devices may be a single number or a plurality of numbers, and they are not limited to one. In addition, the operating system of the vehicle communication terminal in this embodiment may include one or more of all existing mainstream terminal operating systems, and may also include an operating system newly developed in the future, and the operating system of the vehicle communication terminal in this embodiment is not specifically limited herein.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The vehicle communication method, the terminal, the server and the system provided by the invention are described in detail, specific examples are applied in the description to explain the principle and the implementation of the invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A vehicle communication method, comprising:
when a conventional message sending instruction is obtained, determining a group of characteristic information from the characteristic information set obtained in advance to obtain the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different;
utilizing the characteristic information corresponding to the current conventional message sending process to perform information processing on the vehicle running information of the current target vehicle to obtain a conventional message corresponding to the current conventional message sending process, and sending the conventional message to an external message center;
the external message center is positioned on external equipment or a server capable of communicating with the external equipment;
each group of characteristic information in the characteristic information set further comprises an identifier uniquely corresponding to the characteristic information of the group; correspondingly, the process of performing information processing on the vehicle driving information of the current target vehicle by using the feature information corresponding to the current conventional message sending process includes: carrying out digital signature on the vehicle running information of the current target vehicle by using a signature key corresponding to the conventional message sending process to obtain a corresponding digital signature message; adding the identifier corresponding to the current conventional message sending process to the digital signature message to obtain a conventional message corresponding to the current conventional message sending process;
the method further comprises the following steps:
determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set; determining necessary node information corresponding to the target conventional message set by using a tree structure of a target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance; and sending the necessary node information to the external message center, so that the external message center calculates a corresponding root hash value by using the identifier of the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result.
2. The vehicle communication method according to claim 1,
the external equipment comprises external vehicles and/or roadside fixed arrangement equipment and/or road pedestrian handheld equipment.
3. The vehicle communication method according to claim 1 or 2, characterized by further comprising:
determining a group of characteristic information from the characteristic information set to obtain target characteristic information;
and performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current trackability message, and sending the trackability message to the external message center so that the external message center tracks the target vehicle according to the acquired trackability message.
4. The vehicle communication method according to claim 1, further comprising:
determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
extracting all identifiers in the target conventional message set to obtain a target identifier set;
and sending the target identifier set to the outside message center, so that the outside message center screens out conventional messages corresponding to each identifier in the target identifier set from all the received conventional messages, and tracks the target vehicle according to all the screened conventional messages.
5. A vehicle communication terminal, comprising:
the first information determining module is used for determining a group of characteristic information from the pre-obtained characteristic information set when a conventional message sending instruction is obtained, and obtaining the characteristic information corresponding to the conventional message sending process; the characteristic information set comprises a plurality of groups of different characteristic information, each group of characteristic information comprises a signature key uniquely corresponding to the group of characteristic information, and the characteristic information corresponding to any two conventional message sending processes is different;
the first information processing module is used for processing the vehicle running information of the current target vehicle by utilizing the characteristic information corresponding to the current conventional message sending process to obtain a conventional message corresponding to the current conventional message sending process and sending the conventional message to an external message center;
the external message center is positioned on external equipment or a server capable of communicating with the external equipment;
each group of characteristic information in the characteristic information set further comprises an identifier uniquely corresponding to the characteristic information of the group;
correspondingly, the first information processing module includes:
the first signature unit is used for digitally signing the current vehicle driving information of the target vehicle by using a signature key corresponding to the current conventional message sending process to obtain a corresponding digital signature message;
a first adding unit, configured to add an identifier corresponding to the current conventional message sending process to the digital signature message, so as to obtain a conventional message corresponding to the current conventional message sending process;
the vehicle communication terminal further includes:
the third information determining module is used for determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
the fourth information determining module is used for determining necessary node information corresponding to the target conventional message set by utilizing the tree structure of the target hash tree; the target hash tree is a hash tree which is constructed by taking identifiers of each group of feature information of the feature information set as leaf nodes in advance;
and the node information sending unit is used for sending the necessary node information to the external message center so that the external message center calculates a corresponding root hash value by utilizing the identifier in the target conventional message set which is received in advance and the necessary node information, judges whether the root hash value is consistent with the root hash value on the target hash tree or not on the external message center, and determines whether the target vehicle can be tracked according to the target conventional message set or not according to the judgment result.
6. The vehicle communication terminal according to claim 5,
the external equipment comprises external vehicles and/or roadside fixed arrangement equipment and/or road pedestrian handheld equipment.
7. The vehicle communication terminal according to claim 5 or 6, further comprising:
the second information determining module is used for determining a group of characteristic information from the characteristic information set to obtain target characteristic information;
and the second information processing module is used for performing information processing on the current vehicle running information of the target vehicle by using the target characteristic information to obtain a current traceability message and sending the traceability message to the external message center so that the external message center can track the target vehicle according to the acquired traceability message.
8. The vehicle communication terminal according to claim 5, further comprising:
the fifth information determining module is used for determining all conventional messages which have been sent in the past preset historical time period to obtain a target conventional message set;
the identifier extraction unit is used for extracting all identifiers in the target conventional message set to obtain a target identifier set;
and the identifier sending unit is used for sending the target identifier set to the outside message center so as to enable the outside message center to screen out the conventional message corresponding to each identifier in the target identifier set from all the received conventional messages, and track the target vehicle according to all the screened conventional messages.
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| CN201710042286.3A CN106850602B (en) | 2017-01-20 | 2017-01-20 | Vehicle communication method, terminal, server and system |
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| US9432344B2 (en) * | 2013-03-15 | 2016-08-30 | Low Gravity Innovation, Inc. | Secure storage and sharing of user objects |
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| CN105023310A (en) * | 2014-04-30 | 2015-11-04 | 上海汽车集团股份有限公司 | Vehicle driving data storage method and device and vehicle driving data recorder |
| CN105577613A (en) * | 2014-10-11 | 2016-05-11 | 电信科学技术研究院 | Secret key information transmitting method, secret key information receiving method, equipment and system thereof |
| CN105635147A (en) * | 2015-12-30 | 2016-06-01 | 深圳市图雅丽特种技术有限公司 | Vehicle-mounted-special-equipment-system-based secure data transmission method and system |
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