CN110932852A - Communication method adopting CAN data encryption - Google Patents
Communication method adopting CAN data encryption Download PDFInfo
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- CN110932852A CN110932852A CN201911235145.9A CN201911235145A CN110932852A CN 110932852 A CN110932852 A CN 110932852A CN 201911235145 A CN201911235145 A CN 201911235145A CN 110932852 A CN110932852 A CN 110932852A
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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
- H04L9/0852—Quantum cryptography
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a communication method adopting CAN data encryption. The invention relates to a communication method adopting CAN data encryption, which comprises the following steps: acquiring data on a CAN bus, wherein the data comprises audio data and video data; carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data; and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data. The invention has the beneficial effects that: utilize the high security of quantum encryption CAN bus, the CAN bus data that will gather simultaneously is real-time, timely upload to the server, has strengthened the ageing of data, promotes the transmission efficiency of data.
Description
Technical Field
The invention relates to the field of CAN buses, in particular to a communication method adopting CAN data encryption.
Background
CAN is a short term for Controller Area Network (CAN), developed by BOSCH corporation of germany, which is known to develop and produce automotive electronics, and finally becomes an international standard (ISO 11898), which is one of the most widely used field buses internationally. In north america and western europe, the CAN bus protocol has become the standard bus for automotive computer control systems and embedded industrial control area networks, and possesses the J1939 protocol designed for large trucks and heavy work machinery vehicles with CAN as the underlying protocol.
The traditional technology has the following technical problems:
the existing CAN bus adopts clear code data transmission, and data is broadcasted on the bus. Are easily intercepted and illegally controlled.
Disclosure of Invention
The invention aims to provide a communication method adopting CAN data encryption, which has high safety.
In order to solve the technical problem, the invention provides a communication method adopting CAN data encryption, which comprises the following steps:
acquiring data on a CAN bus, wherein the data comprises audio data and video data;
carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data;
and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
In one embodiment, "encrypted data obtained by quantum encryption of acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
In one embodiment, "encrypt the video data using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
In one embodiment, the data further comprises non-audio-video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
Based on the same inventive concept, the present application further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the following method, specifically including:
acquiring data on a CAN bus, wherein the data comprises audio data and video data;
carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data;
and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
In one embodiment, "encrypted data obtained by quantum encryption of acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
In one embodiment, "encrypt the video data using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
In one embodiment, the data further comprises non-audio-video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
Based on the same inventive concept, the present application also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods when executing the program.
Based on the same inventive concept, the present application further provides a processor for executing a program, wherein the program executes to perform any one of the methods.
The invention has the beneficial effects that:
utilize the high security of quantum encryption CAN bus, the CAN bus data that will gather simultaneously is real-time, timely upload to the server, has strengthened the ageing of data, promotes the transmission efficiency of data.
Drawings
Fig. 1 is a flow chart of a communication method using CAN data encryption according to the present invention.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, a communication method using CAN data encryption includes:
and S110, acquiring data on the CAN bus, wherein the data comprises audio data and video data.
And S120, carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data.
And S130, transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
The invention has the beneficial effects that:
utilize the high security of quantum encryption CAN bus, the CAN bus data that will gather simultaneously is real-time, timely upload to the server, has strengthened the ageing of data, promotes the transmission efficiency of data.
Specifically, "encrypted data obtained by quantum encryption of acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
The two quantum key generation modules are respectively used for encrypting and decrypting the audio and the video, so that the high requirement of the quantum key coding speed for simultaneously transmitting the audio and the video in one file by using one quantum key generation module is lowered. In addition, the existing quantum key generation module is not stable, and when one of the two quantum key generation modules fails, normal transmission of one of audio and video can be met.
More specifically, "encrypt the video data using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
In addition, after the video and the audio are separately transmitted, the video signals can be easily and independently sampled, the code rate of the video is reduced through sampling, and the requirement on the speed of the quantum key generation module for generating the quantum key is reduced.
In one embodiment, the data further comprises non-audio-video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
That is to say, for non-audio and video data (including gps data, brake data and the like of an automobile), the data volume is usually smaller than that of the audio and video data, an independent third quantum key generation module is adopted to be independently used for encryption and decryption of the non-audio and video data, and the problem that the encryption of the non-audio and video data is influenced due to the low coding speed of a quantum key caused by the large audio and video data when the non-audio and video data and the audio and video data share one quantum key generation module is reduced. In addition, because the existing quantum key generation module is not stable, and when the audio and video data share one quantum key generation module, because the audio and video data are large, the workload of the quantum key generation module is large, so that the stability is poor, an independent third quantum key generation module is independently used for encrypting and decrypting the non-audio and video data, because the data are relatively small, the normal transmission of the non-audio and video data is met, the stability is strong, and in this way, certain non-audio and video data which are more critical to an automobile system can be ensured to be encrypted and transmitted.
Based on the same inventive concept, the present application further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the following method, specifically including:
acquiring data on a CAN bus, wherein the data comprises audio data and video data;
carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data;
and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
The invention has the beneficial effects that:
utilize the high security of quantum encryption CAN bus, the CAN bus data that will gather simultaneously is real-time, timely upload to the server, has strengthened the ageing of data, promotes the transmission efficiency of data.
Specifically, "encrypted data obtained by quantum encryption of acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
The two quantum key generation modules are respectively used for encrypting and decrypting the audio and the video, so that the high requirement of the quantum key coding speed for simultaneously transmitting the audio and the video in one file by using one quantum key generation module is lowered. In addition, the existing quantum key generation module is not stable, and when one of the two quantum key generation modules fails, normal transmission of one of audio and video can be met.
More specifically, "encrypt the video data using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
In addition, after the video and the audio are separately transmitted, the video signals can be easily and independently sampled, the code rate of the video is reduced through sampling, and the requirement on the speed of the quantum key generation module for generating the quantum key is reduced.
In one embodiment, the data further comprises non-audio-video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
That is to say, for non-audio and video data (including gps data, brake data and the like of an automobile), the data volume is usually smaller than that of the audio and video data, an independent third quantum key generation module is adopted to be independently used for encryption and decryption of the non-audio and video data, and the problem that the encryption of the non-audio and video data is influenced due to the low coding speed of a quantum key caused by the large audio and video data when the non-audio and video data and the audio and video data share one quantum key generation module is reduced. In addition, because the existing quantum key generation module is not stable, and when the audio and video data share one quantum key generation module, because the audio and video data are large, the workload of the quantum key generation module is large, so that the stability is poor, an independent third quantum key generation module is independently used for encrypting and decrypting the non-audio and video data, because the data are relatively small, the normal transmission of the non-audio and video data is met, the stability is strong, and in this way, certain non-audio and video data which are more critical to an automobile system can be ensured to be encrypted and transmitted.
Based on the same inventive concept, the present application also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods when executing the program.
Based on the same inventive concept, the present application further provides a processor for executing a program, wherein the program executes to perform any one of the methods.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A communication method adopting CAN data encryption is characterized by comprising the following steps:
and acquiring data on the CAN bus, wherein the data comprises audio data and video data.
Carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data;
and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
2. The communication method according to claim 1, wherein the encrypted data is obtained by quantum-encrypting the acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
3. The communication method using CAN data encryption according to claim 2, wherein "the video data is encrypted using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
4. The communication method employing CAN data encryption of claim 2, wherein the data further comprises non-audio video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
5. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a method comprising:
acquiring data on a CAN bus, wherein the data comprises audio data and video data;
carrying out quantum encryption on the acquired data on the CAN bus to obtain encrypted data;
and transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data.
6. The computer-readable storage medium of claim 5, wherein the encrypted data is quantum encrypted with the acquired data on the CAN bus; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; the method specifically comprises the following steps:
generating first quantum key information by using a first quantum key generation module, and transmitting the first quantum key information to a server;
encrypting the audio data by using the first quantum key information;
transmitting the encrypted audio data to a server, and decrypting the audio data by using the first quantum key information;
generating second quantum key information by using a second quantum key generation module, and transmitting the second quantum key information to the server;
encrypting the video data by using the second quantum key information;
and transmitting the encrypted video data to a server, and decrypting the video data by using the second quantum key information.
7. The computer-readable storage medium of claim 6, wherein "the video data is encrypted using the second quantum key information; before, the method also comprises the following steps: periodically sampling video data; the sampled video data is encoded.
8. The computer-readable storage medium of claim 6, wherein the data further comprises non-audio video data; the method comprises the steps of carrying out quantum encryption on acquired data on a CAN bus to obtain encrypted data; transmitting the encrypted data to a server, and carrying out quantum decryption to obtain decrypted data; "further includes:
generating third quantum key information by using a third quantum key generation module, and transmitting the third quantum key information to the server;
encrypting the non-audio and video data by using the third quantum key information;
and transmitting the encrypted non-audio and video data to a server, and decrypting the non-audio and video data by using the third quantum key information.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1 to 4 are implemented when the program is executed by the processor.
10. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 4.
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| CN201911235145.9A CN110932852A (en) | 2019-12-05 | 2019-12-05 | Communication method adopting CAN data encryption |
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| CN201911235145.9A CN110932852A (en) | 2019-12-05 | 2019-12-05 | Communication method adopting CAN data encryption |
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| CN110535633A (en) * | 2019-07-12 | 2019-12-03 | 江苏宇太网智科技有限公司 | Quantum secret communication network system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109660342A (en) * | 2018-12-24 | 2019-04-19 | 江苏亨通智能物联系统有限公司 | Wireless speech transfers net system based on quantum cryptography |
| CN109996025A (en) * | 2019-04-16 | 2019-07-09 | 北京信而泰科技股份有限公司 | Adaptive audio/video communication methods, devices and systems based on quantum communications |
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Application publication date: 20200327 |