CN109977684A - A kind of data transmission method, device and terminal device - Google Patents
A kind of data transmission method, device and terminal device Download PDFInfo
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- CN109977684A CN109977684A CN201910111103.8A CN201910111103A CN109977684A CN 109977684 A CN109977684 A CN 109977684A CN 201910111103 A CN201910111103 A CN 201910111103A CN 109977684 A CN109977684 A CN 109977684A
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 95
- 230000002441 reversible effect Effects 0.000 claims abstract description 41
- 238000000605 extraction Methods 0.000 claims abstract description 40
- 230000002427 irreversible effect Effects 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000004590 computer program Methods 0.000 claims description 17
- 239000000284 extract Substances 0.000 claims description 11
- 238000013524 data verification Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 12
- 239000012634 fragment Substances 0.000 description 9
- 238000012795 verification Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 241001269238 Data Species 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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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
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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
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
Abstract
The present invention provides a kind of data transmission method, device and terminal devices, are suitable for technical field of data processing, this method comprises: the file type based on be-encrypted data and file size carry out snippet extraction, obtain multiple data slots and location information；Randomly ordered merging is carried out to data slot, obtains the location information of merging data and each data slot in merging data；Search the corresponding irreversible encryption algorithm of file size and reversible encryption decipherment algorithm of merging data；Merging data is handled based on irreversible encryption algorithm to obtain check code, and location information is handled based on reversible encryption decipherment algorithm, obtains encryption information；By check code and encryption information, carry out data transmission together with be-encrypted data.It cracks index of difficulty rising to the relatively fixed single Processing Algorithm of the embodiment of the present invention, so that criminal can not predict the algorithm that may be used and the result being likely to be obtained, it is more difficult to crack corresponding process.
Description
Technical field
The invention belongs to technical field of data processing more particularly to data transmission methods and terminal device.
Background technique
In data transmission procedure, data are extremely easy to be malfunctioned by network failure or criminal's attack, in order to
Guarantee the safe and reliable of data transmission, is all that directly data are verified using the fixed-encryption algorithm chosen in the prior art
Code calculates, then carries out verifying judges whether data are complete using check code in receiving end, but due to the encryption of prior art use
Algorithm is often fixed and single, and criminal is easy to pointedly crack.Therefore, in order to guarantee data transmission safety
Completely, a kind of higher data transfer check method of safety and reliability is needed.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of data transmission method and terminal device, to solve the prior art
In middle data transmission procedure, data encryption verifies the lower problem of safety and reliability.
The first aspect of the embodiment of the present invention provides a kind of data transmission method, comprising:
File type and file size based on be-encrypted data carry out data slot to the be-encrypted data and mention
It takes, obtains first of corresponding multiple first data slots and each first data slot in the be-encrypted data
Location information；
Randomly ordered merging is carried out to first data slot, obtains corresponding first merging data and each described
Second location information of first data slot in first merging data；
Search first merging data the corresponding first irreversible encryption algorithm of file size and first it is reversible plus
Close decipherment algorithm；
First merging data is handled based on the first irreversible encryption algorithm to obtain the first check code, and
The first location information and the second location information are handled based on the first reversible encryption decipherment algorithm, obtained
Encryption information；
By first check code and the encryption information, recipient is transmitted to together with the be-encrypted data, wherein
First check code and the encryption information are used for the recipient and carry out data integrity verifying to the be-encrypted data.
The second aspect of the embodiment of the present invention provides a kind of data verification method, comprising:
Obtain the be-encrypted datas of data transfer means transfers as described in claim 1, first check code with
And the encryption information；
File type and file size based on the be-encrypted data carry out data slot to the be-encrypted data
Extract, obtain corresponding multiple second data slots and each described the and data slot in the be-encrypted data the
Three location informations；
Search the file size and corresponding second irreversible encryption algorithm and second reversible of second data slot
Encryption-decryption algorithm, and being handled the encryption information based on the second reversible encryption decipherment algorithm obtains described the
One location information and the second location information；
Based on the third place information, the first location information and the second location information, to second number
It is ranked up merging according to segment, obtains corresponding second merging data；
Second merging data is handled based on the second irreversible encryption algorithm to obtain the second check code, and
Judge whether second check code and first check code are identical；
If second check code is identical as first check code, determine that the be-encrypted data verification is complete.
The third aspect of the embodiment of the present invention provides a kind of data transmission device, comprising:
First snippet extraction module, for file type and file size based on be-encrypted data, to described to be added
Ciphertext data carries out data slot extraction, obtains corresponding multiple first data slots and each first data slot in institute
State the first location information in be-encrypted data；
Segment sorting module obtains corresponding first and closes for carrying out randomly ordered merging to first data slot
And the second location information of data and each first data slot in first merging data；
First algorithmic match module, file size for searching first merging data it is corresponding first it is irreversible plus
Close algorithm and the first reversible encryption decipherment algorithm；
Double-encryption module, for being handled based on the first irreversible encryption algorithm first merging data
The first check code is obtained, and based on the first reversible encryption decipherment algorithm to the first location information and the second position
Information is handled, and encryption information is obtained；
Data transmission module is used for by first check code and the encryption information, together with the be-encrypted data
It is transmitted to recipient, wherein first check code and the encryption information are used for the recipient to the be-encrypted data
Carry out data integrity verifying.
The second aspect of the embodiment of the present invention provides a kind of terminal device, and the terminal device includes memory, processing
Device, the computer program that can be run on the processor is stored on the memory, and the processor executes the calculating
Following steps are realized when machine program.
The fourth aspect of the embodiment of the present invention provides a kind of data transmission device, comprising:
Data acquisition module, for obtain data transmission device as claimed in claim 7 transmission the be-encrypted data,
First check code and the encryption information；
Second snippet extraction module, for file type and file size based on the be-encrypted data, to described
Be-encrypted data carries out data slot extraction, obtain corresponding multiple second data slots and each described the and data slot
The third place information in the be-encrypted data；
Second algorithmic match module, for searching the file size of second data slot and corresponding second irreversible
Encryption Algorithm and the second reversible encryption decipherment algorithm, and based on the second reversible encryption decipherment algorithm to the encryption information
It is handled, obtains the first location information and the second location information；
Segment merging module, for being based on the third place information, the first location information and the second position
Information is ranked up merging to second data slot, obtains corresponding second merging data；
Data check module, for being handled based on the second irreversible encryption algorithm second merging data
The second check code is obtained, and judges whether second check code and first check code are identical；
Determination module determines the be-encrypted data if identical as first check code for second check code
Verification is complete.
5th aspect of the embodiment of the present invention provides a kind of terminal device, and the terminal device includes memory, processing
Device, the computer program that can be run on the processor is stored on the memory, and the processor executes the calculating
The step of realizing data transmission method as described above when machine program.
6th aspect of the embodiment of the present invention provides a kind of computer readable storage medium, comprising: is stored with computer
Program, which is characterized in that the step of computer program realizes data transmission method as described above when being executed by processor.
Existing beneficial effect is the embodiment of the present invention compared with prior art: in ciphering process, according to number to be encrypted
According to actual file type and volume situation choose corresponding data fragment extracting method, and carry out the extraction of data slot,
The data slot obtained again to extraction merges into row stochastic sequence, while choosing one according to the practical total volume of data slot
A irreversible encryption algorithm and reversible encryption decipherment algorithm are finally based on irreversible encryption algorithm and reversible encryption decipherment algorithm again
Respectively two location informations to merging obtained merging data and data slot in be-encrypted data and merging data into
Row processing, obtains corresponding check code and encryption information, to subsequent verification.Due to data slot extraction and and data slice
The encryption of section is determined by the data of actually required transmission, while being also each completely random to the sequence of data slot
, so that three steps of data transmission procedure all have great randomness and uniqueness every time, and three random phases
Multiply the combination that theoretically can produce a large amount of Different treatments, relatively fixed single Processing Algorithm its crack on index of difficulty
It rises, so that criminal can not predict the algorithm that may be used and the result being likely to be obtained, it is more difficult to crack corresponding process.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation process schematic diagram for the data transmission method that the embodiment of the present invention one provides；
Fig. 2 is the implementation process schematic diagram of data transmission method provided by Embodiment 2 of the present invention；
Fig. 3 is the implementation process schematic diagram for the data transmission method that the embodiment of the present invention three provides；
Fig. 4 is the implementation process schematic diagram for the data transmission method that the embodiment of the present invention four provides；
Fig. 5 is the implementation process schematic diagram for the data transmission method that the embodiment of the present invention five provides；
Fig. 6 is the implementation process schematic diagram for the data verification method that the embodiment of the present invention four provides；
Fig. 7 is the structural schematic diagram for the data transmission device that the embodiment of the present invention six provides；
Fig. 8 is the structural schematic diagram for the data calibration device that the embodiment of the present invention six provides；
Fig. 9 is the schematic diagram for the terminal device that the embodiment of the present invention seven provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Fig. 1 shows the implementation flow chart of the data transmission method of the offer of the embodiment of the present invention one, and details are as follows:
S101, file type and file size based on be-encrypted data carry out data slot to be-encrypted data and mention
It takes, obtains the first position letter of corresponding multiple first data slots and each first data slot in be-encrypted data
Breath.
Wherein specific accessible file type can be set according to actual needs by technical staff, including but not limited to as schemed
Picture, audio, video and text.In view of the data of different file types, its feature is different, and for every kind of Encryption Algorithm to not
With the encryption efficiency also difference of file size size, therefore, in order to guarantee that the data slot extracted is representative, with
It ensures the validity of subsequent encryption, while guaranteeing the efficiency of encryption and to the randomness of subsequent encryption to improve cryptographic check
Different snippet extractions can be arranged for the data of different file types and different file sizes in the embodiment of the present invention in safety
Method can also be by technical staff's sets itself according to actual needs specifically, can refer to the embodiment of the present invention two to five.?
While extracting the first required data slot, the embodiment of the present invention also will record the first data slot in be-encrypted data
Practical first location information, such as when be-encrypted data is audio data, record each audio data section for extracting to
Initial time and termination time in encryption data, to obtain its first location information in be-encrypted data.
S102 carries out randomly ordered merging to the first data slot, obtains corresponding first merging data and each the
Second location information of one data slot in the first merging data.
After multiple first data slots extracted in obtaining be-encrypted data, the embodiment of the present invention it can be carried out with
The sequence and merging of machine, while the second location information after record ordering, this location information is either merge number first
Absolute position in, it is such as above-mentioned when be-encrypted data is audio data, it records each audio data section extracted and exists
Initial time and termination time in be-encrypted data, are also possible to the relative position in the first merging data, after sorting
Serial number, specifically voluntarily chosen by technical staff.
S103, search the first merging data the corresponding first irreversible encryption algorithm of file size and first it is reversible plus
Close decipherment algorithm.
S104 handles the first merging data based on the first irreversible encryption algorithm to obtain the first check code, and base
First location information and second location information are handled in the first reversible encryption decipherment algorithm, obtain encryption information.
In order to guarantee the reliability of data transmission encrypted authentication, merging of the meeting to different file sizes in the embodiment of the present invention
Different irreversible encryption algorithm and reversible encryption decipherment algorithm is arranged in data, since above-mentioned merging data is the first data slot
Extraction be that there is certain randomness (related to the type of specific transmission data and volume every time) so that obtain the
The volume of one merging data is also to have corresponding randomness, is arranged for the merging data of different volumes corresponds on this basis
Irreversible encryption algorithm and reversible encryption decipherment algorithm so that being also to the specific Encryption Algorithm of use in the embodiment of the present invention
With certain randomness, simultaneously as the first data slot is randomly ordered merging, therefore obtained check code is encrypted
Also all there is extremely strong randomness with encryption information, therefore in embodiments of the present invention, data fragment extracting method, data
, there is randomness in segment sequence and merging data Encryption Algorithm, can with the variation for the data transmitted needed for specific and
Variation, even and to same Data duplication carry out transfer check, finally obtained check code and encryption information are also to have
Randomness, so that transfer check process each in the embodiment of the present invention has uniqueness, and because of three random phases
Multiplying, theoretically can produce a large amount of different Processing Algorithm combinations, it cracks index of difficulty rising to more general list algorithm process,
Crack that difficulty is very big so that criminal can not predict the algorithm that may be used and be likely to be obtained as a result, it is even more impossible to crack
Corresponding process.
Wherein, the specific corresponding irreversible encryption algorithm of every kind of file size and reversible encryption decipherment algorithm, can be by technology
Personnel set according to actual needs, including but not limited to such as: irreversible MD5 algorithm and sha1 algorithm, reversible 3DES algorithm
With IDEA algorithm etc., but the algorithm type of irreversible encryption algorithm and reversible encryption decipherment algorithm used by need to guaranteeing is all big
In 1.
First check code and encryption information are transmitted to recipient by S105 together with be-encrypted data, wherein the first school
It tests code and encryption information and data integrity verifying is carried out to be-encrypted data for recipient.
After generating corresponding first check code of be-encrypted data and encryption information, the embodiment of the present invention can be by the first school
It tests code and encryption information is sent to recipient together with be-encrypted data, so that recipient can be to the number to be encrypted received
According to progress completeness check.
In embodiments of the present invention, in ciphering process, according to the actual file type and volume situation of be-encrypted data
It chooses corresponding data fragment extracting method, and carries out the extraction of data slot, then the data slot that extraction obtains is carried out
Random sequence merges, while an irreversible encryption algorithm and reversible encryption are chosen according to the practical total volume of data slot
Decipherment algorithm, the merging data that finally merging is obtained respectively based on irreversible encryption algorithm and reversible encryption decipherment algorithm again,
And two location informations of the data slot in be-encrypted data and merging data are handled, obtain corresponding check code with
And encryption information, to subsequent verification.Due to data slot extract and and the encryption of data slot be by actually required biography
What defeated data determined, while being also each completely random to the sequence of data slot, so that data are transmitted across every time
Three steps of journey all have great randomness and uniqueness, and three random multiplications theoretically can produce and not exist together largely
The combination of reason mode, it cracks index of difficulty rising to relatively fixed single Processing Algorithm, so that can not predict can by criminal
The algorithm that can be used and the result being likely to be obtained, it is more difficult to crack corresponding process.
As a kind of specific implementation side for carrying out the first data slot extraction in the embodiment of the present invention one to be-encrypted data
Formula, as shown in Fig. 2, the embodiment of the present invention two, comprising:
S201 is extracted to be added if the file type of be-encrypted data is image and file size is less than preset vol threshold value
The image characteristic point of ciphertext data, and line is carried out based on the Edge Feature Points in image characteristic point, draw corresponding polygon.
S202 is split the picture material in polygon, obtains and the first data slot multiple figures correspondingly
As region, and obtain first location information of each image-region in be-encrypted data.
When be-encrypted data is image and smaller file size, in order to guarantee the effective of the first data slot extracted
Property, the embodiment of the present invention be directed to image the characteristics of, with to image carry out feature point extraction and draw include all image characteristic points
Polygon mode, all characteristic points of image are remained, then the picture material in polygon is split, are obtained
Multiple images content, as multiple first data slots needed for the embodiment of the present invention.Wherein, the specific size of volume threshold can
By technical staff's sets itself.
Wherein, specific dividing method can be by technical staff's sets itself, including but not limited to such as according to pre-set image area
Domain size is split, and is such as split according to 10 pixels × 10 pixels size.First location information, either image district
The absolute position in pending data, the absolute position can be constituted again with the coordinate of each marginal point of image-region in domain, at this time
The first location information of each image-region can use one group of array record, be also possible to image-region all pixels point coordinate and
The virtual center pixel coordinate position that value obtains is as first location information, the first location information of each image-region at this time
An only pixel coordinate, specifically can be by technical staff's sets itself.
It is implemented as the another of the first data slot extraction is carried out to be-encrypted data in the embodiment of the present invention one
Mode, as shown in figure 3, the embodiment of the present invention three, comprising:
S301, if the file type of be-encrypted data is text and file size is less than preset vol threshold value, to be encrypted
Data carry out key character lookup, filter out in text with the first data slot multiple key characters correspondingly, and obtain
First location information of each key character in be-encrypted data.
When be-encrypted data is text data and smaller file size, in order to guarantee the effective of the data slot extracted
Property, the embodiment of the present invention can carry out key character lookup to be-encrypted data, wherein can pre-set pass by technical staff
Key characters table, and character match is carried out to be-encrypted data according to the key character content for including in key character table, with reality
Now to the lookup of key character.In view of the demand of different user transmission data is different, i.e., its keyword for different user
Content can also have differences, therefore in embodiments of the present invention, specific key character table content can by technical staff according to
The actual demand of user determines.Wherein, the specific size of volume threshold can be by technical staff's sets itself.
A kind of preferred embodiment of key character lookup is carried out as the embodiment of the present invention, it is contemplated that right in practical application
For different data, the particular content of key character possibly can not be determined, for example, it is assumed that required transmission is to be encrypted suitable
To insure order data, order number therein, insurer, beneficiary and insured amount etc. are key characters at this time, but this
The content of a little key characters is different from every insurance order, if therefore only comprising fixed some passes in key character table
Key characters may be unable to satisfy the actual demand of different user.
In order to meet the actual demand of different user, in the embodiment of the present invention, include in key character table not only includes
Some specific key characters, while also comprising some key character rules, when carrying out key character lookup, as long as meeting crucial
Specific key character or the key character rule for including in character list, can be judged as key character, for example, for upper
For stating insurance order data, key character rule can be set are as follows: n-bit character after " order number " is key character, n by
Technical staff is set according to actual conditions, and at this time when carrying out key character lookup, " order number " subsequent n bit digital i.e. can quilt
It is determined as key character.
It is implemented as the another of the first data slot extraction is carried out to be-encrypted data in the embodiment of the present invention one
Mode, as shown in figure 4, the embodiment of the present invention four, comprising:
S401, if the file type of be-encrypted data is audio and file size is less than preset vol threshold value, to be encrypted
Data carry out speech recognition, judge whether be-encrypted data is voice data.
S402 carries out keyword lookup to the word content that speech recognition obtains, obtains if be-encrypted data is voice data
To the corresponding keyword of be-encrypted data.
S403, from be-encrypted data extract with one-to-one first data slot of keyword, and obtain each first
First location information of the data slot in be-encrypted data.
When be-encrypted data is audio data and smaller file size, the embodiment of the present invention can carry out language to audio data
Sound identification, if it includes word content that speech recognition, which goes out, illustrates it for voice data to judge whether it is voice data.Its
In, the specific size of volume threshold can be by technical staff's sets itself.
In order to guarantee that the validity of the data slot extracted, the embodiment of the present invention can be in the texts that speech recognition obtains
Hold and carries out keyword lookup, wherein specific lookup method not limits herein, it can be by technical staff's sets itself or reference
To the lookup method of key character, (keyword in the embodiment of the present invention is equivalent to the embodiment of the present invention in the embodiment of the present invention three
Key character in three).After determining keyword wherein included, the embodiment of the present invention can be further from number to be processed
The corresponding audio fragment of these keywords is found out in, so that the first data slot needed for the embodiment of the present invention is obtained, by
The critical data of word content is contained in keyword, therefore it is with certain representativeness, to ensure that subsequent extracted
The validity of the first data slot out.In embodiments of the present invention, first location information includes the first data slot to be added
Initial time and termination time in ciphertext data.
It is implemented as the another of the first data slot extraction is carried out to be-encrypted data in the embodiment of the present invention one
Mode, as shown in figure 5, the embodiment of the present invention five, comprising:
S501, if be-encrypted data is any file type, and file size is greater than or equal to preset vol threshold value, with pre-
If data break carries out data segment extraction to be-encrypted data, multiple first data slots and each first data slot are obtained
First location information in be-encrypted data.
When file size is larger, either which kind of file type when carrying out data slot extraction its extract workload
All bigger, the efficiency that can directly result in data transmission is lower, therefore, when the file size of be-encrypted data is larger, no matter
Which kind of file type it is, the embodiment of the present invention, which can be all used uniformly, carries out data slot according to the form at preset data interval
It extracts, to obtain required multiple first data slots, wherein specific data break can be by technical staff according to actual needs
Sets itself, either an absolute figure, such as can be set to being converted to be-encrypted data into binary data, and
The data slot of a setting length is extracted every a specific data break length, such as every 200 bits, extracts one
The long data slot of a 500 binary systems is also possible to a relative value, example to obtain the first required data slot
It such as can be set to being converted to be-encrypted data into binary data, and every the extraction of n% be-encrypted data total length one
Length is the data slot of m% be-encrypted data total length, such as extracts a length every 5% be-encrypted data total length and is
The data slot of 15% be-encrypted data total length.Wherein, the specific size of volume threshold can be by technical staff's sets itself.
Should explanatorily, the embodiments of the present invention two to five are the data fragment extracting methods to be-encrypted data,
But each embodiment is directed to the case where different file types or file size size, thus the embodiment of the present invention two to five it
Between can't exist implement when conflict, those skilled in the art can therefrom choose any number of embodiment and this
Inventive embodiments one are combined application implementation, should all be included in the protection scope of the present invention.
In the embodiment of the present invention two to five, for different file types be-encrypted data the characteristics of, be respectively set pair
The data fragment extracting method answered, to ensure that the validity of the data slot extracted.
As the embodiment of the present invention six, corresponds to the embodiment of the present invention one, propose a kind of utilization in the embodiment of the present invention
The method that the first check code and encryption information that the embodiment of the present invention one is transmitted carry out data integrity verifying to be-encrypted data,
Fig. 6 shows the implementation flow chart of the data verification method of the offer of the embodiment of the present invention six, and details are as follows:
S601, obtain as the be-encrypted datas of one data transfer means transfers of the embodiment of the present invention, the first check code and
Encryption information.
S602, file type and file size based on be-encrypted data carry out data slot to be-encrypted data and mention
Take, obtain corresponding multiple second data slots and each the and the third place letter of the data slot in be-encrypted data
Breath.
Data fragment extracting method in the embodiment of the present invention can be by technical staff's sets itself, but should ensure that and the present invention
Data fragment extracting method used in embodiment one is identical, i.e., for file type and the identical data of file size,
Data fragment extracting method selected by the embodiment of the present invention and the embodiment of the present invention one should be consistent, subsequent to guarantee
Normal verification can specifically refer to the embodiments of the present invention one to five, and it will not go into details herein.
S603 searches the file size and corresponding second irreversible encryption algorithm and second reversible of the second data slot
Encryption-decryption algorithm, and encryption information being handled based on the second reversible encryption decipherment algorithm, obtain first location information and
Second location information.
It the file size of the second data slot and is decrypted with irreversible encryption algorithm and reversible encryption in the embodiment of the present invention
The rule of correspondence of algorithm can be by technical staff's sets itself, but should ensure that the text with the first merging data in the embodiment of the present invention one
Part volume is identical as the rule of correspondence of irreversible encryption algorithm and reversible encryption decipherment algorithm, i.e. the file when the second data slot
Volume and it is identical as the file size of the first merging data when, can not selected by the embodiment of the present invention and the embodiment of the present invention one
Reverse encryption algorithm and reversible encryption decipherment algorithm should be consistent, and to guarantee subsequent normal verification, can specifically be referred to upper
The embodiment of the present invention one is stated, it will not go into details herein.
S604 is based on the third place information, first location information and second location information, arranges the second data slot
Sequence merges, and obtains corresponding second merging data.
It is theoretical when the be-encrypted data sent in the be-encrypted data received and the embodiment of the present invention one is identical
The second data slot extracted in upper S602 is and the data content of the first data slot in the embodiment of the present invention one and position
It should be completely the same, while the irreversible encryption algorithm and reversible encryption decipherment algorithm that select should also be as being completely the same
, therefore, when the be-encrypted data sent in the be-encrypted data received and the embodiment of the present invention one is identical, third
Location information with first location information be it is identical, closed at this time according to first location information is corresponding with second location information
The sequence to the second data slot can be realized in system, and guarantees that the result randomly ordered with the first data slot is completely the same.
S605 handles the second merging data to obtain the second check code, and is sentenced based on the second irreversible encryption algorithm
Whether disconnected second check code and the first check code are identical.
S606 determines that be-encrypted data verification is complete if the second check code is identical as the first check code.
When the be-encrypted data sent in the be-encrypted data and the embodiment of the present invention one received is not exactly the same, i.e.,
It malfunctions there are the reasons such as network failure or criminal's attack, directly results in the data content and/or text of be-encrypted data
When part volume changes, it will lead in the embodiment of the present invention and change generated to the extraction of data slot, merging encrypting and decrypting process
Change, due to extract, merge encrypting and decrypting it is different with content according to the specific data type of be-encrypted data and have it is extremely strong with
Machine, will lead to the first location information decrypted and error occurs in second location information, while obtained the third place information
Also there can be mistake, so that the third place information is difficult to rise corresponding with first location information in S604 of the embodiment of the present invention
Come, so that the second merging data can not normally be obtained, so that subsequent refueling process can not be normally carried out, even if backward
The third place information and first location information are mapped, when due to subsequent second irreversible encryption algorithm picks with
The variation of second data slot and change, and the data content of the second merging data also with be-encrypted data variation and become
Change, so that the second obtained check code necessarily has differences with the first check code, therefore is only connect in the embodiment of the present invention
When the be-encrypted data that receives and the completely the same be-encrypted data sent in the embodiment of the present invention one, final the can be just obtained
Two check codes and the first check code as a result, to realize the safe and complete verification to data transmission.
Corresponding to the data transmission method of foregoing embodiments, Fig. 7 shows the data transmission of the offer of the embodiment of the present invention seven
The structural block diagram of device, for ease of description, only parts related to embodiments of the present invention are shown.The exemplary data of Fig. 7 pass
Defeated device can be the executing subject of the data transmission method of the offer of previous embodiment one.
Referring to Fig. 7, which includes:
First snippet extraction module 71, for file type and file size based on be-encrypted data, to it is described to
Encryption data carries out data slot extraction, obtains corresponding multiple first data slots and each first data slot exists
First location information in the be-encrypted data.
Segment sorting module 72 obtains corresponding first for carrying out randomly ordered merging to first data slot
The second location information of merging data and each first data slot in first merging data.
First algorithmic match module 73, file size for searching first merging data are corresponding first irreversible
Encryption Algorithm and the first reversible encryption decipherment algorithm.
Double-encryption module 74, for based on the first irreversible encryption algorithm to first merging data at
Reason obtains the first check code, and based on the first reversible encryption decipherment algorithm to the first location information and the second
Confidence breath is handled, and encryption information is obtained.
Data transmission module 75 is used for by first check code and the encryption information, with the be-encrypted data one
It is same to be transmitted to recipient, wherein first check code and the encryption information are used for the recipient to the number to be encrypted
According to progress data integrity verifying.
Further, the first snippet extraction module 71, comprising:
If the file type of the be-encrypted data is that image and file size are less than preset vol threshold value, extract it is described to
The image characteristic point of encryption data, and line is carried out based on the Edge Feature Points in described image characteristic point, it draws corresponding more
Side shape.
Picture material in the polygon is split, is obtained multiple correspondingly with first data slot
Image-region, and obtain the first location information of each described image region in the be-encrypted data.
Further, the first snippet extraction module 71, comprising:
If the file type of the be-encrypted data is text and file size is less than preset vol threshold value, to described to be added
Ciphertext data carries out key character lookup, filter out in the text with first data slot multiple keywords correspondingly
Symbol, and obtain the first location information of each key character in the be-encrypted data.
Further, the first snippet extraction module 71, comprising:
If the file type of the be-encrypted data is audio and file size is less than preset vol threshold value, to described to be added
Ciphertext data carries out speech recognition, judges whether the be-encrypted data is voice data.
If the be-encrypted data is voice data, keyword lookup is carried out to the word content that speech recognition obtains, is obtained
To the corresponding keyword of the be-encrypted data.
From the be-encrypted data extract with one-to-one first data slot of the keyword, and obtain every
The first location information of a first data slot in the be-encrypted data.
Further, the first snippet extraction module 71, comprising:
If the be-encrypted data is any file type, and file size is greater than or equal to preset vol threshold value, with pre-
If data break carries out data segment extraction to the be-encrypted data, multiple first data slots and each described are obtained
The first location information of first data slot in the be-encrypted data.
Each module realizes the process of respective function in data transmission device provided in an embodiment of the present invention, before specifically referring to
The description of embodiment illustrated in fig. 1 one is stated, details are not described herein again.
Corresponding to the data verification method of foregoing embodiments, Fig. 8 shows data check dress provided in an embodiment of the present invention
The structural block diagram set, for ease of description, only parts related to embodiments of the present invention are shown.The exemplary data check of Fig. 8
Device can be the executing subject of the data verification method of the offer of previous embodiment six.
Data acquisition module 81, it is to be added as described in the data transmission device transmission as described in the embodiment of the present invention seven for obtaining
Ciphertext data, first check code and the encryption information.
Second snippet extraction module 82, for file type and file size based on the be-encrypted data, to institute
State be-encrypted data and carry out data slot extraction, obtain corresponding multiple second data slots and each described the and data slice
The third place information of the section in the be-encrypted data.
Second algorithmic match module 83, file size and corresponding second for searching second data slot can not
Reverse encryption algorithm and the second reversible encryption decipherment algorithm, and the encryption is believed based on the second reversible encryption decipherment algorithm
Breath is handled, and the first location information and the second location information are obtained.
Segment merging module 84, for being based on the third place information, the first location information and the second
Confidence breath, is ranked up merging to second data slot, obtains corresponding second merging data.
Data check module 85, for based on the second irreversible encryption algorithm to second merging data at
Reason obtains the second check code, and judges whether second check code and first check code are identical.
Determination module 86 determines the number to be encrypted if identical as first check code for second check code
It is complete according to verification.
Each module realizes the process of respective function in data calibration device provided in an embodiment of the present invention, before specifically referring to
The description of embodiment illustrated in fig. 6 six is stated, details are not described herein again.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Although will also be appreciated that term " first ", " second " etc. are used in some embodiment of the present invention in the text
Various elements are described, but these elements should not be limited by these terms.These terms are used only to an element
It is distinguished with another element.For example, the first table can be named as the second table, and similarly, the second table can be by
It is named as the first table, without departing from the range of various described embodiments.First table and the second table are all tables, but
It is them is not same table.
Fig. 9 is the schematic diagram for the terminal device that one embodiment of the invention provides.As shown in figure 9, the terminal of the embodiment is set
Standby 9 include: processor 90, memory 91, and the computer that can be run on the processor 90 is stored in the memory 91
Program 92.The processor 90 realizes the step in above-mentioned each data transmission method embodiment when executing the computer program 92
Suddenly, such as step 101 shown in FIG. 1 is to 105.Alternatively, the processor 90 realized when executing the computer program 92 it is above-mentioned
The function of each module/unit in each Installation practice, such as the function of module 71 to 75 shown in Fig. 7.
The terminal device 9 can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The terminal device may include, but be not limited only to, processor 90, memory 91.It will be understood by those skilled in the art that Fig. 9
The only example of terminal device 9 does not constitute the restriction to terminal device 9, may include than illustrating more or fewer portions
Part perhaps combines certain components or different components, such as the terminal device can also include input sending device, net
Network access device, bus etc..
Alleged processor 90 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 91 can be the internal storage unit of the terminal device 9, such as the hard disk or interior of terminal device 9
It deposits.The memory 91 is also possible to the External memory equipment of the terminal device 9, such as be equipped on the terminal device 9
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 91 can also both include the storage inside list of the terminal device 9
Member also includes External memory equipment.The memory 91 is for storing needed for the computer program and the terminal device
Other programs and data.The memory 91, which can be also used for temporarily storing, have been sent or data to be sent.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (Read-Only Memory, ROM), random access memory (Random
Access Memory, RAM), electric carrier signal, telecommunication signal and software distribution medium etc..
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the essence of corresponding technical solution is departed from the spirit and scope of the technical scheme of various embodiments of the present invention, it should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of data transmission method characterized by comprising
File type and file size based on be-encrypted data carry out data slot extraction to the be-encrypted data, obtain
To the first position of corresponding multiple first data slots and each first data slot in the be-encrypted data
Information；
Randomly ordered merging is carried out to first data slot, obtains corresponding first merging data and each described first
Second location information of the data slot in first merging data；
Search the corresponding first irreversible encryption algorithm of file size and the first reversible encryption solution of first merging data
Close algorithm；
First merging data is handled to obtain the first check code based on the first irreversible encryption algorithm, and is based on
The first reversible encryption decipherment algorithm handles the first location information and the second location information, is encrypted
Information；
By first check code and the encryption information, recipient is transmitted to together with the be-encrypted data, wherein described
First check code and the encryption information are used for the recipient and carry out data integrity verifying to the be-encrypted data.
2. data transmission method as described in claim 1, which is characterized in that it is described based on the file type of be-encrypted data with
And file size, data slot extraction is carried out to the be-encrypted data, obtains corresponding multiple first data slots and every
First location information of a first data slot in the be-encrypted data, comprising:
If the file type of the be-encrypted data is image and file size is less than preset vol threshold value, extract described to be encrypted
The image characteristic point of data, and line is carried out based on the Edge Feature Points in described image characteristic point, draw corresponding polygon；
Picture material in the polygon is split, is obtained and the one-to-one multiple images of the first data slot
Region, and obtain the first location information of each described image region in the be-encrypted data.
3. data transmission method as described in claim 1, which is characterized in that it is described based on the file type of be-encrypted data with
And file size, data slot extraction is carried out to the be-encrypted data, obtains corresponding multiple first data slots and every
First location information of a first data slot in the be-encrypted data, further includes:
If the file type of the be-encrypted data is text and file size is less than preset vol threshold value, to the number to be encrypted
According to key character lookup is carried out, filter out in the text with first data slot multiple key characters correspondingly,
And obtain the first location information of each key character in the be-encrypted data.
4. data transmission method as described in claim 1, which is characterized in that it is described based on the file type of be-encrypted data with
And file size, data slot extraction is carried out to the be-encrypted data, obtains corresponding multiple first data slots and every
First location information of a first data slot in the be-encrypted data, further includes:
If the file type of the be-encrypted data is audio and file size is less than preset vol threshold value, to the number to be encrypted
According to speech recognition is carried out, judge whether the be-encrypted data is voice data；
If the be-encrypted data is voice data, keyword lookup is carried out to the word content that speech recognition obtains, obtains institute
State the corresponding keyword of be-encrypted data；
From the be-encrypted data extract with one-to-one first data slot of the keyword, and obtain each institute
State the first location information of first data slot in the be-encrypted data.
5. the data transmission method as described in Claims 1-4 any one, which is characterized in that described to be based on be-encrypted data
File type and file size, to the be-encrypted data carry out data slot extraction, obtain it is corresponding it is multiple first number
According to the first location information of segment and each first data slot in the be-encrypted data, further includes:
If the be-encrypted data is any file type, and file size is greater than or equal to preset vol threshold value, with present count
Data segment extraction is carried out to the be-encrypted data according to interval, obtains multiple first data slots and each described first
The first location information of the data slot in the be-encrypted data.
6. a kind of data verification method characterized by comprising
Obtain the be-encrypted data, first check code and the institute of data transfer means transfers as described in claim 1
State encryption information；
File type and file size based on the be-encrypted data carry out data slot to the be-encrypted data and mention
Take, obtain corresponding multiple second data slots and each described and third of the data slot in the be-encrypted data
Location information；
Search the file size and corresponding second irreversible encryption algorithm and the second reversible encryption of second data slot
Decipherment algorithm, and the encryption information is handled based on the second reversible encryption decipherment algorithm, obtain described first
Confidence breath and the second location information；
Based on the third place information, the first location information and the second location information, to second data slice
Section is ranked up merging, obtains corresponding second merging data；
Second merging data is handled to obtain the second check code based on the second irreversible encryption algorithm, and is judged
Whether second check code and first check code are identical；
If second check code is identical as first check code, determine that the be-encrypted data verification is complete.
7. a kind of data transmission device characterized by comprising
First snippet extraction module, for file type and file size based on be-encrypted data, to the number to be encrypted
According to carry out data slot extraction, obtain corresponding multiple first data slots and each first data slot it is described to
First location information in encryption data；
Segment sorting module obtains corresponding first and merges number for carrying out randomly ordered merging to first data slot
Accordingly and second location information of each first data slot in first merging data；
First algorithmic match module, corresponding first irreversible encryption of file size for searching first merging data are calculated
Method and the first reversible encryption decipherment algorithm；
Double-encryption module, for being handled to obtain to first merging data based on the first irreversible encryption algorithm
First check code, and based on the first reversible encryption decipherment algorithm to the first location information and the second location information
It is handled, obtains encryption information；
Data transmission module, for being transmitted together with the be-encrypted data by first check code and the encryption information
To recipient, wherein first check code and the encryption information carry out the be-encrypted data for the recipient
Data integrity verifying.
8. a kind of data calibration device characterized by comprising
Data acquisition module, for obtaining the be-encrypted data, described of data transmission device as claimed in claim 7 transmission
First check code and the encryption information；
Second snippet extraction module, for file type and file size based on the be-encrypted data, to described to be added
Ciphertext data carries out data slot extraction, obtain corresponding multiple second data slots and each described the and data slot in institute
State the third place information in be-encrypted data；
Second algorithmic match module, for searching the file size and corresponding second irreversible encryption of second data slot
Algorithm and the second reversible encryption decipherment algorithm, and the encryption information is carried out based on the second reversible encryption decipherment algorithm
Processing, obtains the first location information and the second location information；
Segment merging module, for being based on the third place information, the first location information and the second location information,
Merging is ranked up to second data slot, obtains corresponding second merging data；
Data check module, for being handled to obtain to second merging data based on the second irreversible encryption algorithm
Second check code, and judge whether second check code and first check code are identical；
Determination module determines the be-encrypted data verification if identical as first check code for second check code
Completely.
9. a kind of terminal device, which is characterized in that the terminal device includes memory, processor, is stored on the memory
There is the computer program that can be run on the processor, is realized when the processor executes the computer program as right is wanted
The step of seeking any one of 1 to 5 the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 5 of realization the method.
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| CN201910111103.8A CN109977684B (en) | 2019-02-12 | 2019-02-12 | Data transmission method and device and terminal equipment |
| PCT/CN2019/091503 WO2020164211A1 (en) | 2019-02-12 | 2019-06-17 | Data transmission method and apparatus, terminal device and medium |
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| CN201910111103.8A CN109977684B (en) | 2019-02-12 | 2019-02-12 | Data transmission method and device and terminal equipment |
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| CN109977684B CN109977684B (en) | 2024-02-20 |
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| WO2020164211A1 (en) | 2020-08-20 |
| CN109977684B (en) | 2024-02-20 |
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