CN105634727A - Cloud service data encryption and decryption methods and apparatus for electric vehicle - Google Patents
Cloud service data encryption and decryption methods and apparatus for electric vehicle Download PDFInfo
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- CN105634727A CN105634727A CN201511033237.0A CN201511033237A CN105634727A CN 105634727 A CN105634727 A CN 105634727A CN 201511033237 A CN201511033237 A CN 201511033237A CN 105634727 A CN105634727 A CN 105634727A
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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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
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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
- H04L63/04—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
Abstract
The invention relates to cloud service data encryption and decryption methods and apparatus for an electric vehicle. The cloud service data encryption method comprises the steps of: acquiring state data information; carrying out segmentation on the state data information to obtain a plurality of pieces of segment data information; respectively carrying out encryption on the plurality of pieces of segment data information to obtain a plurality of pieces of segment encrypted data information; carrying out reconstruction on the plurality of pieces of segment encrypted data information to obtain encrypted data information; and sending the encrypted data information to a cloud server. The cloud service data decryption method also comprises the steps of: carrying out segmentation on the encrypted data information to obtain a plurality of pieces of segment encrypted data information; respectively carrying out decryption on the plurality of pieces of segment encrypted data information to obtain a plurality of pieces segment data information; carrying out reconstruction on the plurality of pieces segment data information to obtain state data information; and reading the state data information. According to the cloud service data encryption and decryption methods and apparatus for the electric vehicle, which are disclosed by the invention, file information cannot be leaked, and guarantee is provided for a user to safely use the electric vehicle.
Description
Technical field
The present invention relates to Computer Applied Technology field, particularly relate to the cloud service data encryption of a kind of electric motor car, decryption method and device.
Background technology
Along with the protection of individual privacy is day by day paid attention to by people, increasing people needs the fileinfo of oneself is protected. If fileinfo is not protected, then user uses the safety of electric motor car just to can not get ensureing. Common cipher mode is the file or file first selecting and need encryption, is encrypted by the encryption key of default afterwards, to ensure the safety of data message. Above-mentioned encryption method is that whole file or folder is encrypted, if the file or folder of storage is more big, the time of the required cost of its encryption is more long; Correspondingly, the time that file decryption is spent also can be more long, and user is caused great inconvenience by this.
Summary of the invention
The technical problem to be solved is to provide the cloud service data encryption of a kind of electric motor car, decryption method and device.
The technical scheme is that the cloud service data ciphering method of a kind of electric motor car, including: obtain status data information; Described status data information is carried out segmentation and obtains multiple segment data information; The plurality of segment data information is encrypted respectively and obtains multiple sectional encryption data message; The plurality of sectional encryption data message is carried out restructuring and obtains ciphered data information; Described ciphered data information is sent to cloud server.
The invention has the beneficial effects as follows: central control system by being monitored acquisition status data information to the modules of electric motor car, and status data information is encrypted, thus improving the safety of data information transfer.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described segment data information includes many bit data information, and described the plurality of segment data information being encrypted respectively obtains multiple sectional encryption data message and include:
Obtain the key that the plurality of bit data information is corresponding respectively;
Key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
It is combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
Further, the key of the plurality of bit data information of described acquisition correspondence respectively includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
This invention address that another technical scheme of above-mentioned technical problem is as follows: the cloud service data decryption method of a kind of electric motor car, including: receive the ciphered data information that central control system sends; Described ciphered data information is carried out segmentation and obtains multiple sectional encryption data message; The plurality of sectional encryption data message is decrypted respectively and obtains multiple segment data information; The plurality of segment data information is carried out restructuring and obtains status data information; Read described status data information.
The invention has the beneficial effects as follows, cloud server is by receiving the ciphered data information that central control system sends, ciphered data information is decrypted and reads status data information, so that fileinfo will not be revealed, uses electric motor car to provide guarantee for user security.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described sectional encryption data message includes the ciphertext of multiple bit data information, and described being decrypted respectively by the plurality of sectional encryption data message obtains multiple segment data information and include:
The key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information is decrypted and obtains many bit data information;
It is combined obtaining described segment data information by the plurality of bit data information.
Further, described being decrypted by the key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information obtains many bit data information and includes, repeat following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
This invention address that another technical scheme of above-mentioned technical problem is as follows: the cloud service data encryption device of a kind of electric motor car, including: acquiring unit, it is used for obtaining status data information; First segmenting unit, obtains multiple segment data information for described status data information is carried out segmentation; Ciphering unit, obtains multiple sectional encryption data message for the plurality of segment data information being encrypted respectively; First recomposition unit, obtains described ciphered data information for the plurality of sectional encryption data message is carried out restructuring; Transmitting element, for being sent to cloud server by described ciphered data information.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described segment data information includes many bit data information, and described ciphering unit includes:
Key acquiring unit, the key corresponding respectively for obtaining the plurality of bit data information;
Ciphertext generates unit, for key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
First assembled unit, for being combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
Further, described key acquiring unit includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
This invention address that another technical scheme of above-mentioned technical problem is as follows: the cloud service data decryption apparatus of a kind of electric motor car, including: receive unit, for receiving the ciphered data information that central control system sends; Second segmenting unit, obtains multiple sectional encryption data message for described ciphered data information is carried out segmentation; Decryption unit, obtains multiple segment data information for being decrypted respectively by the plurality of sectional encryption data message; Second recomposition unit, obtains status data information for the plurality of segment data information is carried out restructuring; Read unit, be used for reading described status data information.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described sectional encryption data message includes the ciphertext of multiple bit data information, and described decryption unit includes:
Bit data information generating unit, obtains many bit data information for being decrypted by key corresponding with the ciphertext of the plurality of bit data information for the ciphertext of the plurality of bit data information;
Second assembled unit, for being combined obtaining described segment data information by the plurality of bit data information.
Further, institute's bit data information generating unit includes, and repeats following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
Accompanying drawing explanation
The cloud service data ciphering method flow chart of a kind of electric motor car that Fig. 1 provides for the embodiment of the present invention;
The cloud service data decryption method flow chart of a kind of electric motor car that Fig. 2 provides for the embodiment of the present invention;
The cloud service data encryption device schematic diagram of a kind of electric motor car that Fig. 3 provides for the embodiment of the present invention;
The cloud service data decryption apparatus schematic diagram of a kind of electric motor car that Fig. 4 provides for the embodiment of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
31, acquiring unit, the 32, first segmenting unit, 33, ciphering unit, the 34, first recomposition unit, 35, transmitting element, 41, receive unit, the 42, second segmenting unit, 43, decryption unit, the 44, second recomposition unit, 45, read unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
The cloud service data ciphering method flow chart of a kind of electric motor car that Fig. 1 provides for the embodiment of the present invention.
With reference to Fig. 1, executive agent is central control system, in step S101, obtains status data information.
Here, status data information is the data message of electric motor car modules, for instance the electric quantity data information of battery, electric motor car driving mileage data information etc.
In step S102, described status data information is carried out segmentation and obtains multiple segment data information.
In step S103, the plurality of segment data information is encrypted respectively and obtains multiple sectional encryption data message;
In step S104, the plurality of sectional encryption data message is carried out restructuring and obtains ciphered data information.
Here, status data information is carried out segmentation and obtains multiple segment data information, each segment data information is encrypted respectively and obtains each sectional encryption data message, then each sectional encryption data message is recombinated.
In step S105, described ciphered data information is sent to cloud server.
Here, central control system also can receive the command information that cloud server sends, and performs operation according to the command information received.
Further, described segment data information includes many bit data information, and described the plurality of segment data information being encrypted respectively obtains multiple sectional encryption data message and include:
Obtain the key that the plurality of bit data information is corresponding respectively;
Key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
It is combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
Further, the key of the plurality of bit data information of described acquisition correspondence respectively includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
Here, first obtain the key of second bit data information according to the initial key of the first bit data information, obtain the key of the 3rd bit data information further according to the key of second bit data information, the like, until obtaining the key of all bit data information.
The cloud service data decryption method flow chart of a kind of electric motor car that Fig. 2 provides for the embodiment of the present invention.
With reference to Fig. 2, executive agent is cloud server, in step S201, receives the ciphered data information that central control system sends.
In step S202, described ciphered data information is carried out segmentation and obtains multiple sectional encryption data message;
In step S203, the plurality of sectional encryption data message is decrypted respectively and obtains multiple segment data information;
In step S204, the plurality of segment data information is carried out restructuring and obtains status data information.
Here, cloud server receives the ciphered data information that central control system sends, it is necessary to is decrypted by ciphered data information and obtains status data information.
In step S205, read described status data information.
Further, described sectional encryption data message includes the ciphertext of multiple bit data information, and described being decrypted respectively by the plurality of sectional encryption data message obtains multiple segment data information and include:
The key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information is decrypted and obtains many bit data information;
It is combined obtaining described segment data information by the plurality of bit data information.
Further, described being decrypted by the key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information obtains many bit data information and includes, repeat following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
Here, the ciphertext of the first bit data and corresponding key are decrypted and obtain the first bit data information, again the key that the ciphertext of second bit data is corresponding with second bit data is decrypted and obtains second bit data information, the like, until the ciphertext of all of bit data information is all traversed.
The cloud service data encryption device schematic diagram of a kind of electric motor car that Fig. 3 provides for the embodiment of the present invention
With reference to Fig. 3, encryption device includes acquiring unit the 31, first segmenting unit 32, ciphering unit the 33, first recomposition unit 34 and transmitting element 35.
Acquiring unit 31, is used for obtaining status data information.
First segmenting unit 32, obtains multiple segment data information for described status data information is carried out segmentation.
Ciphering unit 33, obtains multiple sectional encryption data message for the plurality of segment data information being encrypted respectively.
First recomposition unit 34, obtains ciphered data information for the plurality of sectional encryption data message is carried out restructuring.
Transmitting element 35, for being sent to cloud server by described ciphered data information.
Further, described segment data information includes many bit data information, and described ciphering unit 33 includes:
The key that key acquiring unit (not shown) is corresponding respectively for obtaining the plurality of bit data information;
Ciphertext generates unit (not shown) for key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
First assembled unit (not shown) is for being combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
Further, described key acquiring unit (not shown) includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
The cloud service data decryption apparatus schematic diagram of a kind of electric motor car that Fig. 4 provides for the embodiment of the present invention.
With reference to Fig. 4, deciphering device includes receiving unit the 41, second segmenting unit 42, decryption unit the 43, second recomposition unit 44 and reading unit 45.
Receive unit 41, for receiving the ciphered data information that central control system sends.
Second segmenting unit 42, obtains multiple sectional encryption data message for described ciphered data information is carried out segmentation.
Decryption unit 43, obtains multiple segment data information for being decrypted respectively by the plurality of sectional encryption data message.
Second recomposition unit 44, obtains status data information for the plurality of segment data information is carried out restructuring.
Read unit 45, be used for reading described status data information.
Further, described sectional encryption data message includes the ciphertext of multiple bit data information, and described decryption unit 43 includes:
Bit data information generating unit (not shown) obtains many bit data information for being decrypted by key corresponding with the ciphertext of the plurality of bit data information for the ciphertext of the plurality of bit data information;
Second assembled unit (not shown) is for being combined obtaining described segment data information by the plurality of bit data information.
Further, institute's bit data information generating unit (not shown) includes, and repeats following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1. the cloud service data ciphering method of an electric motor car, it is characterised in that including:
Obtain status data information;
Described status data information is carried out segmentation and obtains multiple segment data information;
The plurality of segment data information is encrypted respectively and obtains multiple sectional encryption data message;
The plurality of sectional encryption data message is carried out restructuring and obtains ciphered data information;
Described ciphered data information is sent to cloud server.
2. the cloud service data ciphering method of a kind of electric motor car according to claim 1, it is characterized in that, described segment data information includes many bit data information, and described the plurality of segment data information being encrypted respectively obtains multiple sectional encryption data message and include:
Obtain the key that the plurality of bit data information is corresponding respectively;
Key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
It is combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
3. the cloud service data ciphering method of a kind of electric motor car according to claim 2, it is characterized in that, the key of the plurality of bit data information of described acquisition correspondence respectively includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
4. the cloud service data decryption method of an electric motor car, it is characterised in that including:
Receive the ciphered data information that central control system sends;
Described ciphered data information is carried out segmentation and obtains multiple sectional encryption data message;
The plurality of sectional encryption data message is decrypted respectively and obtains multiple segment data information;
The plurality of segment data information is carried out restructuring and obtains status data information;
Read described status data information.
5. the cloud service data decryption method of a kind of electric motor car according to claim 4, it is characterized in that, described sectional encryption data message includes the ciphertext of multiple bit data information, and described being decrypted respectively by the plurality of sectional encryption data message obtains multiple segment data information and include:
The key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information is decrypted and obtains many bit data information;
It is combined obtaining described segment data information by the plurality of bit data information.
6. the cloud service data decryption method of a kind of electric motor car according to claim 5, it is characterized in that, described being decrypted by the key that the ciphertext of the plurality of bit data information is corresponding with the ciphertext of the plurality of bit data information obtains many bit data information and includes, repeat following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
7. the cloud service data encryption device of an electric motor car, it is characterised in that including:
Acquiring unit, is used for obtaining status data information;
First segmenting unit, obtains multiple segment data information for described status data information is carried out segmentation;
Ciphering unit, obtains multiple sectional encryption data message for the plurality of segment data information being encrypted respectively;
First recomposition unit, obtains ciphered data information for the plurality of sectional encryption data message is carried out restructuring;
Transmitting element, for being sent to cloud server by described ciphered data information.
8. the cloud service data encryption device of a kind of electric motor car according to claim 7, it is characterised in that described segment data information includes many bit data information, and described ciphering unit includes:
Key acquiring unit, the key corresponding respectively for obtaining the plurality of bit data information;
Ciphertext generates unit, for key corresponding respectively to the plurality of bit data information and the plurality of bit data information is encrypted the ciphertext obtaining the plurality of bit data information;
First assembled unit, for being combined obtaining described sectional encryption data message by the ciphertext of the plurality of bit data information.
9. the cloud service data encryption device of a kind of electric motor car according to claim 8, it is characterised in that described key acquiring unit includes, and repeats following iterative processing, until whole the plurality of bit data information is all traversed:
The first bit data information is chosen as present bit data message from the plurality of bit data information;
Obtain the initial key of described present bit data message;
Described initial key is carried out dynamic mapping and obtains the key of rear a data information.
10. the cloud service data decryption apparatus of an electric motor car, it is characterised in that including:
Receive unit, for receiving the ciphered data information that central control system sends;
Second segmenting unit, obtains multiple sectional encryption data message for described ciphered data information is carried out segmentation;
Decryption unit, obtains multiple segment data information for being decrypted respectively by the plurality of sectional encryption data message;
Second recomposition unit, obtains status data information for the plurality of segment data information is carried out restructuring;
Read unit, be used for reading described status data information.
11. the cloud service data decryption apparatus of a kind of electric motor car according to claim 10, it is characterised in that described sectional encryption data message includes the ciphertext of multiple bit data information, and described decryption unit includes:
Bit data information generating unit, obtains many bit data information for being decrypted by key corresponding with the ciphertext of the plurality of bit data information for the ciphertext of the plurality of bit data information;
Second assembled unit, for being combined obtaining described segment data information by the plurality of bit data information.
12. the cloud service data decryption apparatus of a kind of electric motor car according to claim 11, it is characterised in that institute's bit data information generating unit includes, and repeats following process, until the ciphertext of whole the plurality of bit data information is all traversed:
The ciphertext of the first bit data information is chosen as current ciphertext from the ciphertext of the plurality of bit data information;
The key that described current ciphertext is corresponding with described current ciphertext is decrypted and obtains present bit data message.
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| CN105634727B (en) | 2019-01-18 |
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