CN106534194A - Safe data transmission method and device for Beidou chip, and terminal - Google Patents
Safe data transmission method and device for Beidou chip, and terminal Download PDFInfo
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- CN106534194A CN106534194A CN201611173684.0A CN201611173684A CN106534194A CN 106534194 A CN106534194 A CN 106534194A CN 201611173684 A CN201611173684 A CN 201611173684A CN 106534194 A CN106534194 A CN 106534194A
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- signature
- location data
- big dipper
- chip
- data
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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
-
- 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
- H04L63/12—Applying verification of the received information
- H04L63/126—Applying verification of the received information the source of the received data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/72—Signcrypting, i.e. digital signing and encrypting simultaneously
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
Abstract
The invention provides a safe data transmission method and device for a Beidou chip, and a terminal, which are used for data transmission between the Beidou chip and a processing chip. The method comprises the following steps: acquiring positioning data generated by the Beidou chip, and generating a signature of the positioning data through calculation; encrypting the positioning data and the signature to obtain a transmission ciphertext; transmitting the transmission ciphertext to the processing chip; decrypting the transmission ciphertext received by the processing chip to obtain a transmission plaintext, and respectively carrying out extractions to obtain a positioning data plaintext and a signature A; calculating the positioning data plaintext to generate a signature B of the positioning data plaintext; judging whether the signature A and the signature B are identical or not; if the signature A and the signature B are identical, carrying out further processing of the positioning data plaintext through the processing chip; and if the signature A and the signature B are not identical, discarding the positioning data plaintext. The method and device and the terminal provided by the invention have the advantages that the positioning data acquisition and decryption difficulties are improved through encryption and signature verification, so that the data transmission safety for the Beidou chip is effectively improved.
Description
Technical field
The present invention relates to Security Data Transmission technical field, more particularly to a kind of safe transmission side of Big Dipper chip data
Method, device and terminal.
Background technology
Big Dipper chip is used for the signal for receiving big-dipper satellite transmitting, produces location data, and location data is sent to which
The process chip of his correlation, process chip be used for receive the Big Dipper chip transmission location data, carry out location data process and
Using realizing the application of location navigation or positioning.
Big Dipper chip passes through PCB (Printed Circuit Board, printed circuit board) or SIP with process chip
(System in Package, system in package) is connected, typically by UART (Universal Asynchronous
Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter), SPI (Serial Peripheral Interface, serial
Peripheral Interface) or I2C (Inter-Integrated Circuit, twin wire universal serial bus) agreement communicated.
UART, SPI and I2C signaling interface negligible amounts, interface protocol is relatively simple, and communication speed is slower, its transmission
Data on line can be obtained by some instrument and equipment measurements.And in existing technology, the positioning of Big Dipper chip and process chip
Data transfer adopts the location data of plaintext transmission, transmission to be easily acquired and crack.But location data is than more sensitive
Data, if being cracked or distorting, will crack the use safety of Big Dipper chip use device or equipment.So.How to improve
The safety of the location data transmission of Big Dipper chip is those skilled in the art's technical barrier urgently to be resolved hurrily.
The content of the invention
To overcome problem present in correlation technique, the present invention to provide a kind of Security Data Transmission side with regard to Big Dipper chip
Method, device and terminal.
First aspect according to embodiments of the present invention, there is provided a kind of Big Dipper chip data safe transmission method, be used for
Data transfer between Big Dipper chip and process chip, including：
The location data that the Big Dipper chip is generated is obtained, the signature for generating the location data is calculated；
The location data and the signature are encrypted, transmission ciphertext is obtained；
The transmission ciphertext is transmitted to the process chip；
The transmission ciphertext that process chip is received is decrypted, and obtains transmission in plain text, extracts respectively and obtains location data
In plain text with signature A；
Calculate the location data in plain text, generate the signature B of the location data plaintext；
Judge whether the signature A is consistent with signature B；
If consistent, the process chip carries out the further process of the location data plaintext；Or,
If inconsistent, the location data is abandoned in plain text.
Preferably, it is in the safe transmission method of above-mentioned Big Dipper chip data, described to calculate the label for generating the location data
Name, including：
Calculate the summary of the location data；
The signature of the summary is calculated, the signature of the summary is generated as into the signature of the location data.
Preferably, it is in the safe transmission method of above-mentioned Big Dipper chip data, described to calculate the label for generating the location data
Name, including：
The summary of the location data is calculated by SM3；
The signature of the summary is calculated by SM2, the signature of the summary is generated as into the signature of the location data.
Preferably, in the safe transmission method of above-mentioned Big Dipper chip data, the location data is carried out using SM1 or SM4
Encryption, the transmission ciphertext are decrypted using the SM1 or SM4.
Second aspect according to embodiments of the present invention, the present invention provide a kind of safe transmission device of Big Dipper chip data,
Including：
Big Dipper chip signature generation module, for obtaining the location data that the Big Dipper chip is generated, calculates described in generating
The signature of location data；
Big Dipper chip encryption module, the location data and the signature are encrypted, and obtain transmission ciphertext；
Big Dipper chip ciphertext sending module, the transmission ciphertext are transmitted to the process chip；
Process chip ciphertext deciphering module, the transmission ciphertext for process chip is received are decrypted, and are transmitted
In plain text, extract respectively and obtain location data in plain text and signature A；
Location data plaintext computing module, for calculating the location data in plain text, generates the location data plaintext
Signature B；
Signature check module, for comparing signature A and signature B, when the A that signs is consistent with signature B, the process chip is entered
The further process of the row location data plaintext, when the A that signs is inconsistent with signature B, abandons the location data in plain text.
Preferably, in the safe transmission device of above-mentioned Big Dipper chip data, the Big Dipper chip signature generation module includes：
Big Dipper chip digest calculations unit, for calculating the summary of the location data；
The signature signal generating unit of Big Dipper chip summary, calculates the signature of the summary, the signature of the summary is generated as
The signature of the location data.
Preferably, in the safe transmission device of above-mentioned Big Dipper chip data, the Big Dipper chip signature generation module includes：
Big Dipper chip summary SM3 computing units, for the summary of the location data is calculated by SM3 algorithms；
The signature SM2 signal generating units of Big Dipper chip summary, calculate the signature of the summary by SM2 algorithms, pluck described
The signature wanted is generated as the signature of the location data.
Preferably, in the safe transmission device of above-mentioned Big Dipper chip data, also include：
First key module, for storing SM1 or SM4 keys, encrypting the location data and signature is carried out, and generates transmission
Ciphertext；
Second cipher key module, for storing SM1 or SM4 keys, carries out the decryption of transmission ciphertext in the process chip.
The third aspect according to embodiments of the present invention, a kind of terminal unit of present invention offer, including Big Dipper chip data
Safe transmission device, it is characterised in that the safe transmission device of the Big Dipper chip data is above-mentioned Big Dipper chip data
Safe transmission device.
From such scheme, a kind of safe transmission method of Big Dipper chip data that the present invention is provided, device and terminal,
The signature of location data is generated, and the location data of plaintext transmission in Big Dipper chip is encrypted, by encrypting and signing
Name verification, improves location data and obtains and decode difficulty, effectively improve the safety of Big Dipper chip data transmission, it is to avoid by some
Electronic measuring instrument crawl analysis or the interference of other technologies means are distorted.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The present invention can be limited.
Description of the drawings
During accompanying drawing herein is merged in description and the part of this specification is constituted, show the enforcement for meeting the present invention
Example, and be used for explaining the principle of the present invention together with description.
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.
The schematic flow sheet of the safe transmission method of the Big Dipper chip data that Fig. 1 is provided for one embodiment of the invention；
The schematic flow sheet of the safe transmission method of the Big Dipper chip data that Fig. 2 is provided for further embodiment of this invention；
The structural representation of the safe transmission device of the Big Dipper chip data that Fig. 3 is provided for one embodiment of the invention；
The structural representation of the safe transmission device of the Big Dipper chip data that Fig. 4 is provided for further embodiment of this invention；
The structural representation of the safe transmission device of the Big Dipper chip data that Fig. 5 is provided for yet another embodiment of the invention；
Fig. 6 is the structural representation of terminal unit provided in an embodiment of the present invention.
Specific embodiment
Here in detail exemplary embodiment will be illustrated, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.Conversely, they be only with as appended by
The example of consistent apparatus and method in terms of some described in detail in claims, the present invention.
The schematic flow sheet of the safe transmission method of Fig. 1 Big Dipper chip datas provided in an embodiment of the present invention.Big Dipper chip
The safe transmission method of data, for the data transfer between Big Dipper chip and process chip as shown in figure 1, methods described bag
Include：
Step S101：The location data that the Big Dipper chip is generated is obtained, the signature for generating the location data is calculated.
The signal that big-dipper satellite sends is received in Big Dipper chip, location data is generated, and the positioning number is generated by calculating
According to signature.Using DSA (Digital Signature Algorithm), RSA (Ron Rivest, Adi Shamir and
Leonard Adleman are proposed) scheduling algorithm generates the signature of the location data.
Step S102：The location data and the signature are encrypted, transmission ciphertext is obtained.
The signature of location data and location data is encrypted, transmission ciphertext is obtained, for Big Dipper chip and process core
Transmission between piece.The key of location data and encrypted signature can for the close SM1 of state (SM1 cryptographic algorithm),
The close SM4 of state (SM4 cryptographic algorithm), AES (Advanced Encryption Standard, it is senior plus
Data Encryption Standard) or DES (Data Encryption Standard, data encryption standardss) scheduling algorithm.
Step S103：The transmission ciphertext is transmitted to the process chip.
After transmission ciphertext is obtained, Big Dipper chip is transmitted ciphertext is transmitted to process chip, and completes Big Dipper chip positioning number
According to the data transfer between process chip.In the embodiment of the present invention, the biography of data is carried out by UART, SPI or I2C agreement
It is defeated.
Step S104：The transmission ciphertext that process chip is received is decrypted, and obtains transmission in plain text, extracts respectively and obtains
Location data plaintext and signature A.
After process chip receives transmission ciphertext, the decryption of ciphertext is transmitted, obtains transmission in plain text, extract transmission in plain text
In location data and signature A.The decryption of transmission ciphertext adopts the key algorithm corresponding with encryption.
Step S105：Calculate the location data in plain text, generate the signature B of the location data plaintext.
Calculate location data in plain text, generate the signature B of location data plaintext.Method using signature is calculated with location data
Calculate the signature B of the location data plaintext that process chip is obtained.
Step S106：Judge whether the signature A is consistent with signature B.
Judge whether signature A is consistent with signature B, when the A that signs is consistent with signature B, execution step S107；When signature A and
When signature B is inconsistent, execution step S108.There is signature A and signature B is inconsistent, illustrate that data may quilt when transmission
Distort, data exist dangerous, will be not suitable for continuing using.
Step S107：The process chip carries out the further process of the location data plaintext.
When the A that signs is consistent with signature B, the data transfer between Big Dipper chip and process chip is judged to it is safe, number
According to can be employed, process chip carries out the further process of location data plaintext.
Step S108：Abandon the location data in plain text.
When A and signature B inconsistent is signed, the location data of acquisition is probably the data being tampered in plain text, and data are true
Reality it is impossible to ensure that, be not suitable for continuing using, abandon location data in plain text.
The safe transmission method of the Big Dipper chip data provided in the embodiment of the present invention, the location data of transmission is signed
Name and encryption, increase the difficulty that location data is decoded, and so as to improve the safe transmission of Big Dipper chip data, effective protection is fixed
Position data, and by Signature verification data during transmission, if may be tampered, it is ensured that the verity of data.
In a kind of optional embodiment of the invention, in the safe transmission method of the Big Dipper chip data that the present invention is provided,
The signature for calculating the generation location data includes：The summary of the location data is calculated, the signature of the summary is calculated, will
The signature of the summary is generated as the signature of the location data.By SHA (Secure Hash Algorithm) or SM3 etc.
Algorithm calculates the summary of location data, after obtaining the summary of location data, then the signature for calculating the summary.So in positioning number
According to signature generating process in, through dual calculating, increase the decoding difficulty of signature, it is ensured that signature is in data transmission procedure
Verity.
Further, in a kind of optional embodiment of the invention, the safety biography of the Big Dipper chip data that the present invention is provided
In transmission method, comprise the following steps in calculating the signature for generating the location data, refer to accompanying drawing 2.
Step S201：The summary of the location data is calculated by SM3.
The summary of location data is calculated with the algorithm of the close SM3 of state (SM3 cryptographic algorithm).
Step S202：The signature of the summary is calculated by SM2, the signature of the summary is generated as into the location data
Signature.
Calculate after the summary of location data, by state close SM2 (SM2 cryptographic with the close SM3 of state
Algorithm) algorithm calculates the signature of summary, and the signature of summary is generated as the signature of location data.
The close SM3 of state and the close SM2 of state are applied in combination, and improve the safety of signature, are more favorably improved Big Dipper chip data
The safety of transmission, and facilitate implementation.
The realization of the safe transmission method of the Big Dipper chip data provided for ease of above-described embodiment, the present invention are optional real
Apply in example, location data is encrypted using SM1 or SM4, location data ciphertext is decrypted using the SM1 or SM4.
Meet the needs of encryption, calculating speed is fast and and facilitates implementation.
The safe transmission method of the Big Dipper chip data provided based on the present invention, present invention also offers a kind of Big Dipper chip
The safe transmission device of data, mainly includes Big Dipper chip and process chip, and process chip is used to receive the transmission of Big Dipper chip
Location data, more specifically structure referring to the drawings 3, including：
Big Dipper chip signature generation module 301, for obtaining the location data that the Big Dipper chip is generated, calculates and generates institute
State the signature of location data.
Big Dipper chip encryption module 302, the location data and the signature are encrypted, and obtain transmission ciphertext.
Big Dipper chip ciphertext sending module 303, the transmission ciphertext are transmitted to the process chip.
Process chip ciphertext deciphering module 304, the transmission ciphertext for process chip is received are decrypted, and are passed
Defeated plaintext, extracts respectively and obtains location data in plain text and signature A.
Location data plaintext computing module 305, for calculating the location data in plain text, generates the location data in plain text
Signature B.
Signature check module 306, for comparing signature A and signature B, when the A that signs is consistent with signature B, the process core
Piece carries out the further process of the location data plaintext, when the A that signs is inconsistent with signature B, abandons the location data bright
Text.
The safe transmission device of the Big Dipper chip data that the present invention is also provided, realizes number between Big Dipper chip and process chip
According to the safety of transmission.Big Dipper chip encryption module 302 and process chip ciphertext deciphering module 304 will according to encryption and decryption
Ask, built-in algorithm will keep matching relationship.
In a kind of optional embodiment of safe transmission device of the Big Dipper chip data that the present invention is provided, referring to accompanying drawing 4,
Big Dipper chip signature generation module 301 includes：
Big Dipper chip digest calculations unit 401, for calculating the summary of the location data；
The signature signal generating unit 402 of Big Dipper chip summary, calculates the signature of the summary, and the signature of the summary is generated
For the signature of the location data.
In a kind of optional embodiment of safe transmission device of the Big Dipper chip data that the present invention is provided, referring to accompanying drawing 5,
Big Dipper chip signature generation module 301 includes：
Big Dipper chip summary SM3 computing units 501, for the summary of the location data is calculated by SM3 algorithms；
The signature SM2 signal generating units 502 of Big Dipper chip summary, calculate the signature of the summary by SM2 algorithms, will be described
The signature of summary is generated as the signature of the location data.
Further optimisation technique scheme, a kind of optional reality of safe transmission device of the Big Dipper chip data that the present invention is provided
Apply in example, first key module, for storing SM1 or SM4 keys, encrypting the location data and signature is carried out, and generates transmission
Ciphertext；Second cipher key module, for storing SM1 or SM4 keys, carries out the decryption of transmission ciphertext in the process chip.
Present invention also offers a kind of terminal unit, can be mobile phone, computer, digital broadcast terminal, message are received
The equipment of sending out, game console, tablet device, armarium, body-building equipment, personal digital assistant etc. need setting for location data
Standby, its structure refers to accompanying drawing 6, including the safe transmission device of Big Dipper chip data, the safe transmission of the Big Dipper chip data
The safe transmission device of the Big Dipper chip data that device is provided for invention above-described embodiment.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or operate it
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes those
Key element, but also including other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment.
Those skilled in the art will readily occur to its of the present invention after considering description and putting into practice disclosure of the invention here
Its embodiment.The application is intended to any modification of the present invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the precision architecture for being described above and being shown in the drawings is the invention is not limited in, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is limited only by appended claim,
Above-described the application embodiment does not constitute the restriction to the application protection domain.
Claims (9)
1. a kind of safe transmission method of Big Dipper chip data, for the data transfer between Big Dipper chip and process chip, its
It is characterised by, including：
The location data that the Big Dipper chip is generated is obtained, the signature for generating the location data is calculated；
The location data and the signature are encrypted, transmission ciphertext is obtained；
The transmission ciphertext is transmitted to the process chip；
The transmission ciphertext that process chip is received is decrypted, and obtains transmission in plain text, extracts respectively and obtains location data in plain text
With signature A；
Calculate the location data in plain text, generate the signature B of the location data plaintext；
Judge whether the signature A is consistent with signature B；
If consistent, the process chip carries out the further process of the location data plaintext；Or,
If inconsistent, the location data is abandoned in plain text.
2. the safe transmission method of Big Dipper chip data according to claim 1, it is characterised in that the calculating generates institute
The signature of location data is stated, including：
Calculate the summary of the location data；
The signature of the summary is calculated, the signature of the summary is generated as into the signature of the location data.
3. the safe transmission method of Big Dipper chip data according to claim 2, it is characterised in that the calculating generates institute
The signature of location data is stated, including：
The summary of the location data is calculated by SM3；
The signature of the summary is calculated by SM2, the signature of the summary is generated as into the signature of the location data.
4. the safe transmission method of the Big Dipper chip data according to Claims 2 or 3, it is characterised in that the positioning number
According to being encrypted using SM1 or SM4, the transmission ciphertext is decrypted using the SM1 or SM4.
5. a kind of safe transmission device of Big Dipper chip data, it is characterised in that include：
Big Dipper chip signature generation module, for obtaining the location data that the Big Dipper chip is generated, calculates and generates the positioning
The signature of data；
Big Dipper chip encryption module, the location data and the signature are encrypted, and obtain transmission ciphertext；
Big Dipper chip ciphertext sending module, the transmission ciphertext are transmitted to the process chip；
Process chip ciphertext deciphering module, the transmission ciphertext for process chip is received are decrypted, and obtain transmission in plain text,
Extract respectively and obtain location data in plain text and signature A；
Location data plaintext computing module, for calculating the location data in plain text, generates the signature of the location data plaintext
B；
Signature check module, for comparing signature A and signature B, when the A that signs is consistent with signature B, the process chip carries out institute
The further process of location data plaintext is stated, when the A that signs is inconsistent with signature B, the location data is abandoned in plain text.
6. the safe transmission device of Big Dipper chip data according to claim 5, it is characterised in that the Big Dipper chip label
Name generation module includes：
Big Dipper chip digest calculations unit, for calculating the summary of the location data；
The signature signal generating unit of Big Dipper chip summary, calculates the signature of the summary, the signature of the summary is generated as described
The signature of location data.
7. the safe transmission device of Big Dipper chip data according to claim 5, it is characterised in that the Big Dipper chip label
Name generation module includes：
Big Dipper chip summary SM3 computing units, for the summary of the location data is calculated by SM3 algorithms；
The signature SM2 signal generating units of Big Dipper chip summary, calculate the signature of the summary by SM2 algorithms, by the summary
Signature is generated as the signature of the location data.
8. the safe transmission device of the Big Dipper chip data according to claim 6 or 7, it is characterised in that also include：
First key module, for storing SM1 or SM4 keys, encrypting the location data and signature is carried out, and generates transmission close
Text；
Second cipher key module, for storing SM1 or SM4 keys, carries out the decryption of transmission ciphertext in the process chip.
9. a kind of safe transmission device of terminal unit, including Big Dipper chip data, it is characterised in that the Big Dipper chip data
Safe transmission device be the claims 5-8 any one described in Big Dipper chip data safe transmission device.
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| CN201611173684.0A CN106534194A (en) | 2016-12-16 | 2016-12-16 | Safe data transmission method and device for Beidou chip, and terminal |
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| CN201611173684.0A CN106534194A (en) | 2016-12-16 | 2016-12-16 | Safe data transmission method and device for Beidou chip, and terminal |
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| CN109581421A (en) * | 2018-12-14 | 2019-04-05 | 中国民航大学 | The anti-deception hardware platform of Beidou II navigation message realized based on Verilog language |
| CN110086604A (en) * | 2019-05-08 | 2019-08-02 | 西安奇维科技有限公司 | A kind of security hardening system and method based on Beidou life saving system |
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| CN107065512A (en) * | 2017-04-01 | 2017-08-18 | 航天恒星空间技术应用有限公司 | A kind of No. two positioning timing time service terminal installations of the Big Dipper |
| CN109039651A (en) * | 2018-08-09 | 2018-12-18 | 深圳市云海物联网科技有限公司 | A kind of transmission method of location information, transmitting device and global position system |
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Application publication date: 20170322 |