CN106789061A - The floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting car of magnetic - Google Patents
The floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting car of magnetic Download PDFInfo
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- CN106789061A CN106789061A CN201611026204.8A CN201611026204A CN106789061A CN 106789061 A CN106789061 A CN 106789061A CN 201611026204 A CN201611026204 A CN 201611026204A CN 106789061 A CN106789061 A CN 106789061A
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- Prior art keywords
- magnetic
- random number
- detecting car
- engineering detecting
- cryptographic calculation
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Classifications
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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
- H04L9/3236—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 using cryptographic hash functions
-
- 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
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
Abstract
Engineering detecting car data transmission method and device are floated the invention discloses a kind of magnetic, by obtaining the safe key that encryption chip is stored；Generation random number series；According to safe key and random number series, platform end cryptographic calculation result is calculated by Hash AES；Random number series is write into encryption chip, die terminals cryptographic calculation result is generated by Hash AES；Platform end cryptographic calculation result is compared with die terminals cryptographic calculation result, if both are consistent, the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.It can be seen that, the application can effectively take precautions against the mechanism of various physical attacks by setting encryption chip, can prevent the logical attack being subject to when transmitting data between main frame and chip, improve the security of system itself.Additionally, present invention also provides a kind of floating engineering detecting car of magnetic with above-mentioned technological merit.
Description
Technical field
The present invention relates to rolling stock control technology field, more particularly to a kind of magnetic floats engineering detecting car data transmission side
The floating engineering detecting car of method, device and magnetic.
Background technology
The floating engineering comprehensive detection car of magnetic drags three sections to organize into groups using one dynamic two, and often section marshalling configuration is micro- using Cortex-M4
The network data acquisition device of processor design, realizes organizing into groups the state-detections such as on off state, the pressure value of car to every section, and
And, CAN communication is used between each network data acquisition device, realize the exchange of data.Meanwhile, these data are all stored in time
Get off, for the ruuning situation of the floating engineering comprehensive detection car of magnetic provides analysis foundation.
How Security Data Transmission that data acquisition device collect is ensured, the overall security for improving system is this area
Technical staff's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting of magnetic
Car, the logical attack being subject to during preventing and transmit data between main frame and chip improves the security of system itself.
In order to solve the above technical problems, the present invention provides a kind of magnetic floating engineering detecting car data transmission method, including：
Obtain the safe key of encryption chip storage；
Generation random number series；
According to the safe key and the random number series, platform end is calculated by Hash AES and encrypts fortune
Calculate result；
The random number series is write into the encryption chip, generating die terminals by the Hash AES encrypts
Operation result；
The platform end cryptographic calculation result and the die terminals cryptographic calculation result are compared, if both are consistent,
Then the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
Alternatively, the secure key storage is in the eeprom array of the encryption chip, and access stencil is set to
Read-only mode.
Alternatively, the encryption chip is SHA204 chips, and the Hash AES is SHA256 AESs.
Alternatively, it is described according to the safe key and the random number series, it is calculated by Hash AES
Platform end cryptographic calculation result includes：
The random number series and the safe key are combined into the first random key；
Using first random key as the input of the Hash AES, the platform end encryption fortune is calculated
Calculate result；
It is described to write into encryption chip the random number series, die terminals are generated by the Hash AES and is encrypted
Operation result includes：
The random number series is written to the encryption chip, the safe key group with the encryption chip memory storage
Synthesize the second random key；
Using second random key as the input of the Hash AES, the die terminals encryption fortune is calculated
Calculate result.
Alternatively, the safe key is 96 keys, and the random number series is the ordered series of numbers of 64 bytes.
Alternatively, described write to the encryption chip random number series includes：
The random number series is write into the encryption chip by I2C interfaces.
Present invention also offers a kind of floating engineering detecting car data transmitting device of magnetic, including：
Acquisition module, the safe key for obtaining encryption chip storage；
Generation module, for generating random number series；
First computing module, for according to the safe key and the random number series, by Hash AES meter
Calculation obtains platform end cryptographic calculation result；
Second computing module, for the random number series to be write into the encryption chip, is encrypted by the Hash
Algorithm generates die terminals cryptographic calculation result；
Matching module, for the platform end cryptographic calculation result and the die terminals cryptographic calculation result to be compared
Compared with if both are consistent, the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
Alternatively, the secure key storage is in the eeprom array of the encryption chip, and access stencil is set to
Read-only mode.
Alternatively, the encryption chip is SHA204 chips, and the Hash AES is SHA256 AESs.
Present invention also offers a kind of floating engineering detecting car of magnetic, including harvester and any of the above-described kind of floating engineering inspection of magnetic
Measuring car data transmission device.
Magnetic provided by the present invention floats engineering detecting car data transmission method and device, by obtaining what encryption chip was stored
Safe key；Generation random number series；According to safe key and random number series, platform end is calculated by Hash AES
Cryptographic calculation result；Random number series is write into encryption chip, die terminals cryptographic calculation knot is generated by Hash AES
Really；Platform end cryptographic calculation result is compared with die terminals cryptographic calculation result, if both are consistent, magnetic floats engineering detecting
Car carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.It can be seen that, the application by setting encryption chip, and
Computing is encrypted respectively in encryption chip and platform end, it is only identical in the result that platform end and die terminals are calculated
When, can just be communicated.The application can effectively take precautions against the mechanism of various physical attacks, can prevent main frame and chip it
Between the logical attack that is subject to when transmitting data, improve the security of system itself.Additionally, having present invention also provides one kind
The floating engineering detecting car of the magnetic of above-mentioned technological merit.
Brief description of the drawings
For the clearer explanation embodiment of the present invention or the technical scheme of prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for technology description is briefly described, it should be apparent that, drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow of specific embodiment of the floating engineering detecting car data transmission method of magnetic provided by the present invention
Figure；
Fig. 2 is the stream of another specific embodiment of the floating engineering detecting car data transmission method of magnetic provided by the present invention
Cheng Tu；
Fig. 3 is the operation logic figure of the floating engineering detecting car data transmission method of magnetic provided by the present invention；
Fig. 4 is the structured flowchart of the floating engineering detecting car data transmitting device of magnetic provided in an embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
A kind of flow chart of specific embodiment of the floating engineering detecting car data transmission method of magnetic provided by the present invention is such as
Shown in Fig. 1, the method includes：
Step S101：Obtain the safe key of encryption chip storage；
Safe key can be configured in advance, and be stored in the corresponding safety zone of encryption chip.For example, can be with
Design key data and keyword, are stored in eeprom array, and the storage mode of the key data is set to read-only
Mode, so key can be prevented to be read while certification is realized, so as to take precautions against the mechanism of various physical attacks.
Step S102：Generation random number series；
Random number series can be generated by existing algorithm, and the method for existing generation random number series is a lot, will not be repeated here,
This does not influence realization of the invention.
Step S103：According to the safe key and the random number series, it is calculated by Hash AES flat
You cryptographic calculation result；Step S104：The random number series is write into the encryption chip, is encrypted by the Hash
Algorithm generates die terminals cryptographic calculation result；
Using safe key and random number series as two inputs of Hash AES, calculated by preset algorithm
Afterwards, cryptographic calculation result is obtained.Calculated at platform end and then obtain platform end operation result, calculated in encryption chip and then obtain chip
End cryptographic calculation result.The Hash AES that two calculating process are used is identical, so, input random number series and
Also in the case of identical, the cryptographic calculation result of generation should be also identical for safe key.After being compared to cryptographic calculation result,
So that present communications are encrypted with control.
Used as a kind of specific embodiment, Hash AES can be carried out specifically using SHA-256 in the present embodiment
Calculate.Other algorithms, however it is not limited to this kind of mode, this does not influence realization of the invention.
Step S105：The platform end cryptographic calculation result and the die terminals cryptographic calculation result are compared, if
Both are consistent, then the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
Platform end is contrasted with the operation result of both encryption chips, if the match is successful, is illustrated that password is correct,
CAN communication function is opened, the switching value and analog quantity of system Real-time Collection are exchanged with other control devices；If matching is lost
Lose, then illustrate code error, system exits task run.
The floating engineering detecting car data transmission method of magnetic provided by the present invention, it is close by the safety for obtaining encryption chip storage
Key；Generation random number series；According to safe key and random number series, platform end is calculated by Hash AES and encrypts fortune
Calculate result；Random number series is write into encryption chip, die terminals cryptographic calculation result is generated by Hash AES；Will be flat
You cryptographic calculation result is compared with die terminals cryptographic calculation result, if both are consistent, the floating engineering detecting car of magnetic is respectively compiled
Data exchange is carried out between group；Otherwise, it is impossible to carry out data exchange.It can be seen that, the application is being encrypted by setting encryption chip
Chip and platform end are encrypted computing respectively, only when the result that platform end and die terminals are calculated is identical,
Can be communicated.The application can effectively take precautions against the mechanism of various physical attacks, can prevent to be passed between main frame and chip
The logical attack being subject to during transmission of data, improves the security of system itself.
On the basis of above-described embodiment, safe key can specifically be stored in the eeprom array of the encryption chip
In, and access stencil is set to read-only mode.By setting read-only mode, the modification to safe key can be limited, increased
The security of key storage.
Specifically, encryption chip can use SHA204 chips, the Hash AES to use in the embodiment of the present application
SHA256 AESs.
Another flow chart of the specific embodiment of the floating engineering detecting car data transmission method of magnetic provided by the present invention
As shown in Fig. 2 the method includes：
Step S201：Obtain the safe key of encryption chip storage；
Step S202：Generation random number series；
Step S203：The random number series and the safe key are combined into the first random key；
Step S204：Using first random key as the input of the Hash AES, it is calculated described flat
You cryptographic calculation result；
Step S205：The random number series is written to the encryption chip, and described in the encryption chip memory storage
Safe key is combined into the second random key；
Wherein, the random number series can be write into the encryption chip by I2C interfaces.
Step S206：Using second random key as the input of the Hash AES, the core is calculated
Bit end cryptographic calculation result；
Step S207：The platform end cryptographic calculation result and the die terminals cryptographic calculation result are compared, if
Both are consistent, then the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
The operation logic figure of the floating engineering detecting car data transmission method of the magnetic provided by the present invention of reference picture 3, below to this
Another embodiment that invention is provided is further elaborated on.
In the present embodiment, network data acquisition device uses Encryption Design, is encrypted using the SHA204 based on I2C buses
Chip and SHA256 algorithms are realized.Network data acquisition device can be used for the state of Real-time Collection switching value and analog quantity, and
By CAN network and other control system exchange datas.
On Cortex-M4 platforms, communication mode realizes SHA- using the I2C communications on basis by way of program
256 algorithms, meanwhile, challenge (eap-message digest) is sent to SHA204, after SHA204 is calculated, beam back and receive the response,
Again in the contrast achieved above of Cortex-M4 platforms, if the match is successful, program is continued to run with；If it fails, then program determination
Operation, so as to realize the purpose of encryption.
Used as a kind of specific embodiment, safe key can be 96 keys, and random number series can be the number of 64 bytes
Row.
Its specific implementation process is：
(1) system electrification, 96 safe keys are write to SHA204 encryption chips by I2C interfaces；
(2) random number series is produced by RNG functions in Cortex-M4 platforms, with 96 cipher key combinations into a string it is new with
Secret key, new key is as the input of SHA256 AESs, and the SHA256 AESs are consistent with SHA204 engine algorithms,
By being calculated cryptographic calculation result；
(3) RNG functions generation random number series is written in SHA204 encryption chips by I2C interfaces, with chip internal memory
96 safe keys of storage constitute new random key, and operation result is obtained by SHA256 computing engines；
(4) Cortex-M4 platforms are contrasted with the operation result of both SHA204 encryption chips, if matched into
Work(, then read-me password is correct, opens CAN communication function, by the switching value and analog quantity of system Real-time Collection and other controls
Device processed is exchanged；If it fails to match, read-me code error, system exits task run.
The floating engineering detecting car data transmitting device of magnetic provided in an embodiment of the present invention is introduced below, it is described below
The floating engineering detecting car data transmitting device of magnetic can mutually corresponding ginseng with the floating engineering detecting car data transmission method of above-described magnetic
According to.
Fig. 4 is the structured flowchart of the floating engineering detecting car data transmitting device of magnetic provided in an embodiment of the present invention, the magnetic of reference picture 4
Floating engineering detecting car data transmitting device can include：
Acquisition module 100, the safe key for obtaining encryption chip storage；
Generation module 200, for generating random number series；
First computing module 300, for according to the safe key and the random number series, by Hash AES
It is calculated platform end cryptographic calculation result；
Second computing module 400, for the random number series to be write into the encryption chip, is added by the Hash
Close algorithm generates die terminals cryptographic calculation result；
Matching module 500, for the platform end cryptographic calculation result to be carried out with the die terminals cryptographic calculation result
Compare, if both are consistent, the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
It is described in the floating engineering detecting car data transmitting device of magnetic provided herein as a kind of specific embodiment
Secure key storage is in the eeprom array of the encryption chip, and access stencil is set to read-only mode.
It is described in the floating engineering detecting car data transmitting device of magnetic provided herein as a kind of specific embodiment
Encryption chip is SHA204 chips, and the Hash AES is SHA256 AESs.
The floating engineering detecting car data transmitting device of the magnetic of the present embodiment is used to realize the floating engineering detecting car data of foregoing magnetic
The floating engineering inspection of the visible magnetic hereinbefore of specific embodiment in transmission method, therefore the floating engineering detecting car data transmitting device of magnetic
The embodiment part of measuring car data transmission method, for example, acquisition module 100, generation module 200, the first computing module 300, the
Two computing modules 400, matching module 500 is respectively used to realize step in the floating engineering detecting car data transmission method of above-mentioned magnetic
S101, S102, S103, S104 and S105, so, its specific embodiment is referred to retouching for corresponding various pieces embodiment
State, will not be repeated here.
The floating engineering detecting car data transmitting device of magnetic provided by the present invention, it is close by the safety for obtaining encryption chip storage
Key；Generation random number series；According to safe key and random number series, platform end is calculated by Hash AES and encrypts fortune
Calculate result；Random number series is write into encryption chip, die terminals cryptographic calculation result is generated by Hash AES；Will be flat
You cryptographic calculation result is compared with die terminals cryptographic calculation result, if both are consistent, the floating engineering detecting car of magnetic is respectively compiled
Data exchange is carried out between group；Otherwise, it is impossible to carry out data exchange.It can be seen that, the application is being encrypted by setting encryption chip
Chip and platform end are encrypted computing respectively, only when the result that platform end and die terminals are calculated is identical,
Can be communicated.The application can effectively take precautions against the mechanism of various physical attacks, can prevent to be passed between main frame and chip
The logical attack being subject to during transmission of data, improves the security of system itself.
Additionally, present invention also provides a kind of floating engineering detecting car of magnetic with above-mentioned technological merit.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For being filled disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Illustrate.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
The step of method or algorithm for being described with reference to the embodiments described herein, directly can be held with hardware, processor
Capable software module, or the two combination is implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In field in known any other form of storage medium.
Above to the floating engineering detecting car data transmission method of magnetic provided by the present invention, device and the floating engineering detecting car of magnetic
It is described in detail.Specific case used herein is set forth to principle of the invention and implementation method, above reality
The explanation for applying example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention,
These are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of magnetic floats engineering detecting car data transmission method, it is characterised in that including：
Obtain the safe key of encryption chip storage；
Generation random number series；
According to the safe key and the random number series, platform end cryptographic calculation knot is calculated by Hash AES
Really；
The random number series is write into the encryption chip, die terminals cryptographic calculation is generated by the Hash AES
As a result；
The platform end cryptographic calculation result and the die terminals cryptographic calculation result are compared, if both are consistent, magnetic
Floating engineering detecting car carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
2. magnetic as claimed in claim 1 floats engineering detecting car data transmission method, it is characterised in that the secure key storage
In the eeprom array of the encryption chip, and access stencil is set to read-only mode.
3. the floating engineering detecting car data transmission method of magnetic as claimed in claim 2, it is characterised in that the encryption chip is
SHA204 chips, the Hash AES is SHA256 AESs.
4. the floating engineering detecting car data transmission method of magnetic as described in any one of claims 1 to 3, it is characterised in that described
According to the safe key and the random number series, platform end cryptographic calculation result bag is calculated by Hash AES
Include：
The random number series and the safe key are combined into the first random key；
Using first random key as the input of the Hash AES, the platform end cryptographic calculation knot is calculated
Really；
It is described to write into encryption chip the random number series, die terminals cryptographic calculation is generated by the Hash AES
Result includes：
The random number series is written to the encryption chip, the safe key with the encryption chip memory storage is combined into
Second random key；
Using second random key as the input of the Hash AES, the die terminals cryptographic calculation knot is calculated
Really.
5. magnetic as claimed in claim 4 floats engineering detecting car data transmission method, it is characterised in that the safe key is 96
Position key, the random number series is the ordered series of numbers of 64 bytes.
6. magnetic as claimed in claim 5 floats engineering detecting car data transmission method, it is characterised in that described by the random number
Row write-in to the encryption chip includes：
The random number series is write into the encryption chip by I2C interfaces.
7. a kind of magnetic floats engineering detecting car data transmitting device, it is characterised in that including：
Acquisition module, the safe key for obtaining encryption chip storage；
Generation module, for generating random number series；
First computing module, for according to the safe key and the random number series, being calculated by Hash AES
To platform end cryptographic calculation result；
Second computing module, for the random number series to be write into the encryption chip, by the Hash AES
Generation die terminals cryptographic calculation result；
Matching module, for the platform end cryptographic calculation result and the die terminals cryptographic calculation result to be compared, if
Both are consistent, then the floating engineering detecting car of magnetic carries out data exchange between respectively organizing into groups；Otherwise, it is impossible to carry out data exchange.
8. magnetic as claimed in claim 7 floats engineering detecting car data transmitting device, it is characterised in that the secure key storage
In the eeprom array of the encryption chip, and access stencil is set to read-only mode.
9. the floating engineering detecting car data transmitting device of magnetic as claimed in claim 8, it is characterised in that the encryption chip is
SHA204 chips, the Hash AES is SHA256 AESs.
10. a kind of magnetic floats engineering detecting car, it is characterised in that including harvester and as described in any one of claim 7 to 9
The floating engineering detecting car data transmitting device of magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026204.8A CN106789061A (en) | 2016-11-18 | 2016-11-18 | The floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting car of magnetic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026204.8A CN106789061A (en) | 2016-11-18 | 2016-11-18 | The floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting car of magnetic |
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ID=58970397
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| CN201611026204.8A Pending CN106789061A (en) | 2016-11-18 | 2016-11-18 | The floating engineering detecting car data transmission method of magnetic, device and the floating engineering detecting car of magnetic |
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| CN109040285A (en) * | 2018-08-24 | 2018-12-18 | 北京汽车集团有限公司 | Method, apparatus, storage medium and the vehicle of In-vehicle networking safety certification |
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Application publication date: 20170531 |