CN111130781A - Active security defense method and device for communication control of Internet of vehicles - Google Patents
Active security defense method and device for communication control of Internet of vehicles Download PDFInfo
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- 230000006854 communication Effects 0.000 title claims abstract description 46
- 238000004891 communication Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007123 defense Effects 0.000 title claims abstract description 26
- 238000012795 verification Methods 0.000 claims abstract description 17
- 230000006855 networking Effects 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1441—Countermeasures against malicious traffic
- H04L63/1466—Active attacks involving interception, injection, modification, spoofing of data unit addresses, e.g. hijacking, packet injection or TCP sequence number attacks
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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
- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
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Abstract
The invention relates to a vehicle networking communication control active security defense method and a device, which mainly comprise the following steps: the vehicle-mounted end presets a differential key before distribution; before the vehicle management control end communicates with the vehicle, a random instruction is generated by using a dynamic algorithm and is returned to the vehicle-mounted end along with the control instruction; after receiving the control instruction, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random instruction, the random instruction is matched with the received random instruction, if the verification is passed, the instruction is executed, and if the verification is failed, the execution of a postscript instruction is refused; and returning the instruction operation result to the active segment. The invention can realize the communication control safety of the vehicle management control end and the vehicle-mounted end under the environment of intelligent vehicle networking, the communication instruction is effective only in a certain time window, an attacker cannot imitate the instruction to control the vehicle, and the network attack of the vehicle networking can be effectively resisted.
Description
Technical Field
The invention relates to a method and a device for defending the security of Internet of vehicles, in particular to a method and a device for defending the security of the communication control initiative of the Internet of vehicles, belonging to the field of information security.
Background
With the development of artificial intelligence and the development of the internet +, the car networking gradually turns to intellectualization, the unmanned technology is mature day by day, and the architecture of cloud network end control is formed. However, wireless communication is adopted in the internet of vehicles, so that the safety capability is weak, and a huge safety risk exists. If the network attack cannot be effectively defended, the communication process of the vehicle and the control platform is greatly threatened, so that data leakage is caused, a traffic accident is seriously caused, casualties occur, economic loss is brought, and even social stability and national security are threatened.
In the traditional network security passive protection method based on boundary protection, due to the lack of a security strategy of dynamic protection, the protocol vulnerability of communication transmission is exposed to attackers for a long time. This static, homogeneous, invariant network weakness presents a security risk for long-term eavesdropping, scanning, and penetration by attackers. The new attack means of national-level countermeasure such as APT attack (advanced persistent Threat) also poses a Threat to vehicle network security. The APT attack core technology utilizes a 0-day bug (also called a zero-day bug) or an undisclosed bug, is a combination of a plurality of attack means, and has slow attack process, pertinence, continuity and concealment.
In view of this, how to change the static defense in the communication process of the internet of vehicles, changing passive defense into active defense is an important method and technology for improving the communication control safety of the internet of vehicles. By increasing the diversity and the transient of the instructions in the communication control process, the attack difficulty and the cost can be effectively improved, and the communication damages such as eavesdropping attack, forged instruction attack and the like can be prevented.
Disclosure of Invention
In view of this, the invention discloses a method and a device for vehicle networking communication control active security defense, which mainly comprises the following steps: the vehicle-mounted end presets a differential key before distribution; before the vehicle management control end communicates with the vehicle, a random instruction is generated by using a dynamic algorithm and is returned to the vehicle-mounted end along with the control instruction; after receiving the control instruction, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random instruction, the random instruction is matched with the received random instruction, if the verification is passed, the instruction is executed, and if the verification is failed, the execution of a postscript instruction is refused; and returning the instruction operation result to the active segment. The invention can realize the communication control safety of the vehicle management control end and the vehicle-mounted end under the environment of intelligent vehicle networking, the communication instruction is effective only in a certain time window, an attacker cannot imitate the instruction to control the vehicle, and the network attack of the vehicle networking can be effectively resisted.
The technical scheme of the invention is as follows: a vehicle networking communication control active security defense method comprises the following steps:
1) the vehicle-mounted end presets a differential key before distribution;
2) before the vehicle management control end communicates with the vehicle, a random instruction is generated by using a dynamic algorithm and is returned to the vehicle-mounted end along with the control instruction;
3) after receiving the control instruction, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random instruction, the random instruction is matched with the received random instruction, if the verification is passed, the instruction is executed, and if the verification is failed, the execution of a postscript instruction is refused;
4) and returning the instruction operation result to the vehicle management control end.
Furthermore, the active security defense method for communication control in the internet of vehicles is characterized in that the dynamic algorithm is a randomized algorithm f (T, Kc) based on time T and a preset key Kc, a random number generated by the algorithm changes along with the change of a time window Tws, and the random number remains unchanged in the same time window.
Furthermore, the active security defense method for communication control in the internet of vehicles is characterized in that the dynamic instruction verification method comprises the following processes:
1) the vehicle-mounted end firstly takes out the system time and the shared secret key, and f (T, Kc) is calculated to obtain a random instruction Rs;
2) the random instruction Rs and the control instruction Cc are connected in series to obtain a communication control instruction Cnet;
3) after the vehicle-mounted terminal receives the communication control instruction, a random instruction Rs is extracted, and the local time T is extracted’And sharing the secret key, calculating f (again)T’,Kc)=R’s;
4) If R is’s = Rs, a subsequent control command Cc is executed, if R’s! = Rs, the terminal executes the subsequent instruction;
5) and feeding back the execution result to the vehicle management control end.
Furthermore, the active security defense method for the communication control of the internet of vehicles is characterized in that the dynamic instruction module modifies instructions of reading, writing, opening, closing, copying, deleting, cutting, moving and the like of data.
Furthermore, the active security defense method for communication control of the internet of vehicles is characterized in that the communication control command can be unidirectional or bidirectional, and the vehicle management control end issues a command to the vehicle-mounted end and can also report data to the vehicle management control end.
Furthermore, the active security defense method for the communication control of the internet of vehicles is characterized in that the dynamic algorithm can be synchronized in online time or offline counting.
The invention also provides an active security defense device for communication control of the Internet of vehicles, which comprises a shared secret key distribution module, a vehicle management dynamic algorithm module, a vehicle management control end instruction sending and receiving module, a vehicle-mounted end dynamic algorithm module and a vehicle-mounted end instruction sending and receiving module,
the shared key distribution module presets a differential key for the vehicle-mounted end before distribution, and registers and updates the differential key to the vehicle management control end;
the vehicle management dynamic algorithm module generates a random instruction by using a dynamic algorithm before communicating with a vehicle, and returns the random instruction to the vehicle-mounted end along with a control instruction;
the vehicle management control end instruction sending and receiving module is used for sending and receiving vehicle management control end instructions and return messages;
the vehicle-mounted end instruction sending and receiving module is used for receiving and sending a vehicle-mounted end instruction and a return message;
and after the vehicle-mounted end receives the control command, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random command and matches the random command with the received random command, if the verification is passed, the command is executed, and if the verification is failed, the execution of the post-recording command is refused.
The invention has the following positive effects:
the invention provides an active security defense method and device for communication control of Internet of vehicles, which are characterized in that dynamic random instructions are added into communication control instructions, so that the instructions have the characteristics of diversity and instantaneity, and the cost of attack eavesdropping and counterfeiting is provided. The invention can realize the communication control safety of the vehicle management control end and the vehicle-mounted end under the environment of intelligent vehicle networking, the communication instruction is effective only in a certain time window, an attacker cannot imitate the instruction to control the vehicle, and the network attack of the vehicle networking can be effectively resisted.
Drawings
FIG. 1 is a schematic diagram of an architecture of an active security defense method and device for vehicle networking communication control according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The invention discloses a vehicle networking communication control active security defense method in one embodiment, which comprises the following steps:
1) the vehicle-mounted end presets a differential key before distribution;
2) before the vehicle management control end communicates with the vehicle, a random instruction is generated by using a dynamic algorithm and is returned to the vehicle-mounted end along with the control instruction;
3) after receiving the control instruction, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random instruction, the random instruction is matched with the received random instruction, if the verification is passed, the instruction is executed, and if the verification is failed, the execution of a postscript instruction is refused;
4) and returning the instruction operation result to the vehicle management control end.
The following describes a method and an apparatus for active security defense of communication control in internet of vehicles in the accompanying drawings by specific examples.
As shown in figure 1, the vehicle networking communication control active security defense device comprises a shared secret key distribution module, a vehicle management dynamic algorithm module, a vehicle management control end instruction sending and receiving module, a vehicle-mounted end dynamic algorithm module and a vehicle-mounted end instruction sending and receiving module,
the shared key distribution module presets a differential key for the vehicle-mounted end before distribution, and registers and updates the differential key to the vehicle management control end;
the vehicle management dynamic algorithm module generates a random instruction by using a dynamic algorithm before communicating with a vehicle, and returns the random instruction to a vehicle-mounted end along with a control instruction, wherein the dynamic algorithm is a randomized algorithm f (T, Kc) based on time T and a preset key Kc, the random number generated by the algorithm changes along with the change of a time window Tws, and the random number is kept unchanged in the same time window;
the vehicle management control end instruction sending and receiving module is used for sending and receiving vehicle management control end instructions and return messages;
the vehicle-mounted end instruction sending and receiving module is used for receiving and sending a vehicle-mounted end instruction and a return message;
after the vehicle-mounted end receives the control command, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random command and matches the random command with the received random command, and the dynamic command verification method comprises the following steps:
1) the vehicle-mounted end firstly takes out the system time and the shared secret key, and f (T, Kc) is calculated to obtain a random instruction Rs;
2) the random instruction Rs and the control instruction Cc are connected in series to obtain a communication control instruction Cnet;
3) after the vehicle-mounted terminal receives the communication control instruction, a random instruction Rs is extracted, and the local time T is extracted’And sharing the secret key, calculating f (T) again’,Kc)=R’s;
4) If R is’s = Rs, a subsequent control command Cc is executed, if R’s! = Rs, the terminal executes the subsequent instruction;
5) and feeding back the execution result to the vehicle management control end.
The above-described embodiments of the present invention are intended to better understand the use of the present invention and should not be construed as limiting the scope of the present invention. Any modification, variation and equivalent replacement within the spirit and principle of the present invention shall fall within the protection scope of the claims of the present invention.
Claims (7)
1. A vehicle networking communication control active security defense method comprises the following steps:
1) the vehicle-mounted end presets a differential key before distribution;
2) before the vehicle management control end communicates with the vehicle, a random instruction is generated by using a dynamic algorithm and is returned to the vehicle-mounted end along with the control instruction;
3) after receiving the control instruction, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random instruction, the random instruction is matched with the received random instruction, if the verification is passed, the instruction is executed, and if the verification is failed, the execution of a postscript instruction is refused;
4) and returning the instruction operation result to the vehicle management control end.
2. The active defense method for communication control in internet of vehicles according to claim 1, wherein the dynamic algorithm is a randomized algorithm f (T, Kc) based on time T and a preset key Kc, and the random number generated by the algorithm changes along with the change of a time window Tws, and the random number is kept constant in the same time window.
3. The vehicle networking communication control active security defense method according to the claims 1 and 2, characterized in that the dynamic instruction verification method comprises the following steps:
1) the vehicle-mounted end firstly takes out the system time and the shared secret key, and f (T, Kc) is calculated to obtain a random instruction Rs;
2) the random instruction Rs and the control instruction Cc are connected in series to obtain a communication control instruction Cnet;
3) after the vehicle-mounted terminal receives the communication control instruction, a random instruction Rs is extracted, and the local time T is extracted’And sharing the secret key, calculating f (T) again’,Kc)=R’s;
4) If R is’s = Rs, a subsequent control command Cc is executed, if R’s! = Rs, the terminal executes the subsequent instruction;
5) and feeding back the execution result to the vehicle management control end.
4. The active defense method of internet of vehicles communication control of claim 1, wherein the dynamic command module modifies commands of reading, writing, opening, closing, copying, deleting, cutting, moving, etc. of data.
5. The active defense method for communication control of internet of vehicles according to claim 1, wherein the communication control command can be one-way or two-way, and the vehicle management control end issues the command to the vehicle management end, or the vehicle management end reports data to the vehicle management control end.
6. The active defense method for communication control in internet of vehicles according to claim 1 or 5, characterized in that the dynamic algorithm can be synchronized on-line time or off-line counting.
7. An active security defense device for communication control of Internet of vehicles comprises a shared secret key distribution module, a vehicle management dynamic algorithm module, a vehicle management control end instruction sending and receiving module, a vehicle-mounted end dynamic algorithm module and a vehicle-mounted end instruction sending and receiving module,
the shared key distribution module presets a differential key for the vehicle-mounted end before distribution, and registers and updates the differential key to the vehicle management control end;
the vehicle management dynamic algorithm module generates a random instruction by using a dynamic algorithm before communicating with a vehicle, and returns the random instruction to the vehicle-mounted end along with a control instruction;
the vehicle management control end instruction sending and receiving module is used for sending and receiving vehicle management control end instructions and return messages;
the vehicle-mounted end instruction sending and receiving module is used for receiving and sending a vehicle-mounted end instruction and a return message;
and after the vehicle-mounted end receives the control command, the vehicle-mounted end firstly calls the same dynamic algorithm to generate a random command and matches the random command with the received random command, if the verification is passed, the command is executed, and if the verification is failed, the execution of the post-recording command is refused.
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Cited By (1)
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CN117425153A (en) * | 2023-12-18 | 2024-01-19 | 新华三网络信息安全软件有限公司 | Risk detection method and device for Internet of vehicles terminal |
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