CN106603559A - Wireless communication terminal data transmission anti-interception method - Google Patents
Wireless communication terminal data transmission anti-interception method Download PDFInfo
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- CN106603559A CN106603559A CN201611258345.2A CN201611258345A CN106603559A CN 106603559 A CN106603559 A CN 106603559A CN 201611258345 A CN201611258345 A CN 201611258345A CN 106603559 A CN106603559 A CN 106603559A
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Classifications
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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
- H04L63/04—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
- H04L63/0435—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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses a wireless communication terminal data transmission anti-interception method. The method comprises steps that a first terminal and a second terminal internally respectively have same-quantity wireless communication modules, and the first terminal and the second terminal are started to connect with management servers; a communication request for communication with the second terminal is sent by the first terminal to the management server connected with the first terminal; an agreement communication response is sent by the second terminal after the communication request is received, and connection with a relay server is further established; the first terminal receives the agreement communication response and establishes connection with the relay server; data is sent by the first terminal to the second terminal; decryption, packet dropout and disordering processing on received encrypted data packets with different bytes is carried out by the second terminal to acquire the data sent by the first terminal. The method is advantaged in that high efficiency transmission can be realized by the mobile terminals during wireless communication, and data anti-interception secret communication requirements are satisfied.
Description
Technical field
The present invention relates to communication technical field, it is more particularly related to a kind of wireless communication terminal data transfer
The method of anti-intercepting and capturing.
Background technology
Generally can not directly enter row data communication between mobile communication terminal, it is therefore desirable to set up data relay services
Device, the data between terminal are required for carrying out transfer through data Relay Server.Meanwhile, for the convenience of resource management, need
Management server to be set up.
Existing wireless communication terminal there are still when entering row data communication that safety is not high, the problem that confidentiality is inadequate.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of method of wireless communication terminal data transfer anti-intercepting and capturing, the method
Include wireless communication terminal, management server and Relay Server, then data are randomly assigned through fractionation and encryption
It is transmitted to different wireless communication modules, ensure that
The purpose of letter.
To achieve these goals, the invention provides a kind of method of wireless communication terminal data transfer anti-intercepting and capturing, bag
Include following steps：
The IP address list of S1, at least one management server that prestores in first terminal and second terminal, described first
Be respectively provided with equal number in terminal and the second terminal and quantity be at least two wireless communication module, start described first
Terminal is simultaneously connected with any one management server foundation by the one of wireless communication module in the first terminal, is opened
Move the second terminal and by the one of wireless communication module in the second terminal and any one management server
Connection is set up, between at least one management server, data syn-chronization is kept；The first terminal and the second terminal can
To connect identical management server, it is also possible to connect different management servers, when connect different management servers when
Wait, data syn-chronization can be carried out and shared between two different management servers；
S2, the first terminal send to second terminal what is communicated to the management server being connected with the first terminal
Communication request, the management server is in the first terminal and second terminal configuration and wireless communication module quantity identical
After server；
The communication request for receiving is sent to described second eventually by the management server of S3 and second terminal connection
End, the second terminal is sent to connected management server after receiving communication request agrees to communication response, while with
The Relay Server sets up connection；
The management server of S4 and first terminal connection sends the agreement communication response for receiving to described
First terminal, the first terminal are received the agreement communication response and are set up with the Relay Server and be connected；
S5, the first terminal send the start frame of data by management server to the second terminal, treat described the
After one terminal receives the response of the second terminal, the data are split into multiple words according to the size of data by the first terminal
Section not wait packet, and for multiple bytes not wait packet increase data packet head, then to the plurality of byte not grade
Packet and corresponding data packet head are encrypted, and are distributed in the first terminal at least according to random grouping algorithm
Two wireless communication modules, with by least two wireless communication module by encryption after multiple bytes not wait packet
And multiple data packet heads are sent to Relay Server；
S6, the Relay Server to the second terminal send the packet not etc. of the multiple bytes after the encryption with
And multiple data packet heads, the second terminal is by adding described at least two wireless communication modules reception in the second terminal
Multiple bytes after close not wait packet and multiple data packet heads, and the second terminal to the encryption after multiple words
Section not wait packet and multiple data packet heads be decrypted, and according to decryption after multiple data packet heads to decryption after it is many
The packet that individual byte is not waited carries out packet loss and out of order process, so as to obtain the data that the first terminal sends.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, the start frame includes
The title and total length of data to be sent.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, in the S6, described
During the packet that two end-ons are received carries out packet loss and out of order process, also include：
The second terminal is decrypted to the packet and data packet head that the multiple bytes for receiving are not waited, and according to number
Out of order process and packet loss detection are carried out to the packet that the multiple bytes for receiving are not waited according to packet header, if data packet head and data
The number of bag is not corresponded to, then explanation has packet loss, and now second terminal is resend to first terminal feedback by Relay Server
The packet of loss；If the content of one of data packet head and packet is mismatched, wrong bag is illustrated, now described the
Two terminals resend the one of data packet head corresponding packet to first terminal feedback by Relay Server；Such as
Fruit is not lost, then successfully respond to first terminal feedback reception；
The first terminal receive the second terminal resend request after, to one of data packet head
Corresponding packet is retransmitted；The first terminal is received after the reception of second terminal transmission successfully responds, to described
Second terminal sends next section of data；
Meanwhile, the first terminal is when the feedback information of the second terminal is waited and the second terminal is being waited
When first terminal sends data, if waiting more than the regular hour, the first terminal resends data or second terminal
Carry out resending feedback information, if waiting expired times more than three times, be judged as communication abnormality.When not receiving other side's
During response, first terminal and second terminal carry out the above-mentioned action of repetition, resend data or respond again.First terminal to
Second terminal sends data, then waits second terminal response, if first terminal does not receive second within the time of regulation
The response of terminal, first terminal meeting retransmission data, then wait-for-response.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, in the S5, described
One terminal is according at least two wireless communication modules in the random grouping algorithm distribution first terminal with to Relay Server
The packet that the multiple bytes after encryption are not waited is sent, specially：
During the first terminal sends communication request, the management server being connected with first terminal is according to first
In terminal, the signal quality ranking score of each wireless communication module matches somebody with somebody Relay Server, the management server being connected with second terminal
Signal quality ranking score according to each wireless communication module in second terminal matches somebody with somebody Relay Server, so that believing in first terminal
Number high wireless communication module of the credit rating wireless communication module high with signal quality grade in second terminal is assigned to same
On individual Relay Server, the low wireless communication module of signal quality grade and signal quality grade in second terminal in first terminal
Low wireless communication module is assigned on same Relay Server；
The first terminal is more than signal matter to the number of the high wireless communication module distribution packet of signal quality grade
The distribution number of the low wireless communication module of amount grade, and each packet is assigned randomly to one of them by the first terminal
On wireless communication module.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, described signal quality etc.
Level parameter is 0-5, and signal quality class parameter is that 0 wireless communication module represents that signal intensity is 0.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, in the S5, described
Data are split as the packet that multiple 200-800 bytes are not waited by size of one terminal according to data total amount to be sent.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, when data to be sent
When total amount is not more than 1K, the data to be sent are split as each packet of multiple packets for 200 words by the first terminal
Section；
When data total amount to be sent is more than 1K and no more than 1M, the data to be sent are split by the first terminal
For multiple packets, each packet is 500 bytes；
When data total amount to be sent is more than 1M, the data to be sent are split as multiple data by the first terminal
Bag, each packet are 800 bytes.
Preferably, in a kind of method of described wireless communication terminal data transfer anti-intercepting and capturing, the first terminal and
Four wireless communication modules are respectively provided with the second terminal, the wireless communication module can be 2G, 3G, 4G or wifi.
The present invention at least includes following beneficial effect：
1st, in the method for wireless communication terminal data transfer anti-intercepting and capturing of the present invention, first terminal and second terminal are logical
At least 2 wireless communication modules of mounting are crossed, first terminal end is decoupled to initial data, is encrypted, then is randomly choosed channel radio
Channel transfer is interrogated, second terminal is decrypted one by one to the packet for receiving, then do out of order process and merge into initial data, so as to reach
The secret communication purpose of anti-intercepting and capturing, for communication user both sides, its experience is with two terminal direct communications on a local area network
Experience it is consistent.
2nd, the method for wireless communication terminal data transfer anti-intercepting and capturing of the present invention is commercial mobile based on existing 4G
Communication network and the Internet, using existing commercial 4G wireless modules, existing service platform, so as to reduce cost of implementation and
Use cost, is adapted to widely apply and promotes.
3rd, in the method for wireless communication terminal data transfer anti-intercepting and capturing of the present invention appropriate mix data encryption solution
Secret skill art and random grouping algorithm, packet loss, out of order Processing Algorithm can be effectively accomplished anti-section of data while high efficiency of transmission
The secret communication requirement for obtaining.
4th, the framework in the method for wireless communication terminal data transfer anti-intercepting and capturing of the present invention is conducive to the flat of capacity
Sliding capacity expansion and upgrading, and Fault Isolation, each terminal may be at radio silence state when no communication requirement.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part will also be by originally
The research of invention and practice and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the flow chart of the method for wireless communication terminal data transfer anti-intercepting and capturing of the present invention；
Fig. 2 be wireless communication terminal data transfer anti-intercepting and capturing of the present invention method in each component annexation
Figure.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, to make those skilled in the art join
Book word can be implemented according to this as directed.
It should be appreciated that it is used herein such as " have ", "comprising" and " including " term are not precluded from one or many
The presence or addition of individual other elements or its combination.
As depicted in figs. 1 and 2, the invention provides a kind of method of wireless communication terminal data transfer anti-intercepting and capturing, specifically
Process is：
Process 1：After terminal A and terminal B start, using one of 4G modules, through carrier network and the Internet with
Management server establishes a communications link.One is set up to arrive many according to the scale of terminal quantity and the disposal ability of management server
Individual management server, the IP address list of storage and managenent server in each terminal, after terminal starts, are attempted and each clothes successively
Business device sets up connection, until success is successfully connected with a server, between different management servers, keeps data same in real time
Step；
Process 2：Terminal A is needed when the initiation communication of terminal B, initiates Shen to the management server for having connected first
Please, communication request is forwarded from management server to terminal B, and while assign N number of (wireless module number of quantity and each terminal
Amount is consistent) Relay Server, it is ensured that the data of different 4G modules are forwarded through different Relay Servers；
Process 3：Terminal B receives the terminal A communication request of management server forwarding, and idle then agree to by return communication
Confirm, while set up to allocated Relay Server connecting；
Process 4：After management server receives the response of terminal B, to terminal A forward, while to terminal A assign it is same in
After server；
Process 5：After terminal A receives the relay server information of confirmation and appointment, build with specified Relay Server
Vertical connection.
Process 6：Terminal A starts to send data, first sends start frame, and comprising file name, total length, terminal B has been received
Beginning frame can return response, after terminal A receives response, start formal transmission data, and size of terminal A according to data total amount splits
For the packet that 200-800 bytes are not waited, the file within such as 1K, 200 bytes of every bag, the number within more than 1K 1M are split as
According to 500 bytes of every bag are split as, 1M data above is split as 800 bytes of every bag, and this is a kind of typical method for splitting, can root
According to practical situation, from other fractionation schemes, last bag data deficiency then fills invalid data.Packet after fractionation increases
Plus data packet head, data packet head includes the information such as current frame number, current data packet length, and each packet is again through independent
Encryption, encryption method are existing encryption method, then randomly choose radio channel all the way and are transmitted.
Process 7：After data Relay Server receives the packet of terminal A, transparent forwards to terminal B.
Process 8：After terminal B each radio channel receives data, existing decrypting process is first passed through, further according to data
The information such as the length in packet header, frame number, do packet loss and out of order recovery, finally obtain original data.
In said process 8, terminal B carries out the out of order processing procedure of packet loss and is described in detail as follows to packet：
S1：Terminal A continuously transmits 100 packets to terminal B, then waits the reception response of terminal B.
S2：After terminal B receives 100 packets, out of order process and packet loss detection are carried out according to the frame number of data packet head,
If packet loss, then retransmit to terminal A feedback request and specify packet.If no packet loss, feedback reception are normal.
S3：After terminal A receives the feedback information of terminal B, lower one piece of data, 100 numbers are retransmitted or are sent
According to bag.
S4：In said process, terminal A or terminal B are when waiting other side's response or sending data, if waited
Overtime (such as 200ms), then retransmit response or data, and same wait time-out 3 times is it is determined that communication abnormality.
In said process 6, random grouping algorithm is described in detail as follows：
S01：The respective channel number of transmitting terminal and receiving terminal, and the signal quality grade of each passage, signal quality etc.
Level parameter is 0-5, and 0 represents completely no signal, and 5 represent that signal is best.
S02：During terminal initiates communication request, management server signal matter according to each passage of each terminal
Amount, is assigned with corresponding Relay Server, and the best channel allocation of communicating pair signal quality is on a Relay Server.
S03：According to the signal quality of the respective passage of communicating pair, weighted calculation goes out the transmission channel of current data packet.It is right
For each single packet, it is to be randomly assigned passage.For overall transfer distribution, the good passage of signal, distribution
The packet of transmission can be more, otherwise the packet of the channel allocation of poor signal transmission can lack.
Although embodiment of the present invention is disclosed as above, which is not restricted to listed by description and embodiment
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of method of wireless communication terminal data transfer anti-intercepting and capturing, it is characterised in that comprise the following steps：
The IP address list of S1, at least one management server that prestores in first terminal and second terminal, the first terminal
Be respectively provided with equal number in the second terminal and quantity be at least two wireless communication module, start the first terminal
And be connected with any one management server foundation by the one of wireless communication module in the first terminal, start institute
State second terminal and set up with any one management server by the one of wireless communication module in the second terminal
Connection, keeps data syn-chronization between at least one management server；
S2, the first terminal send to second terminal the communication request for being communicated, institute to connected management server
Management server is stated to the first terminal and second terminal configuration and wireless communication module quantity identical Relay Server；
The management server of S3 and second terminal connection sends the communication request for receiving to the second terminal,
The second terminal receives to send to connected management server after communication request agrees to communication response, at the same with it is described
Relay Server sets up connection；
The management server of S4 and first terminal connection sends the agreement communication response for receiving to described first
Terminal, the first terminal are received the agreement communication response and are set up with the Relay Server and be connected；
S5, the first terminal send the start frame of data to the second terminal, treat that the first terminal receives described second
After the response of terminal, the data are split into the packet that multiple bytes are not waited according to the size of data by the first terminal, and
Increase data packet head for the packet that multiple bytes are not waited, the packet and corresponding then not waited to the plurality of byte
Data packet head is encrypted, and at least two wireless communication modules distributed in the first terminal according to random grouping algorithm,
With by least two wireless communication module by encryption after multiple bytes not wait packet and multiple encryptions after
Data packet head is sent to Relay Server；
S6, the Relay Server send the packet not etc. of the multiple bytes after the encryption and many to the second terminal
Data packet head after individual encryption, the second terminal receive institute by least two wireless communication modules in the second terminal
The data packet head after the packet and multiple encryptions that the multiple bytes after encryption do not wait is stated, and the second terminal is to described
Multiple bytes after encryption not wait packet and multiple data packet heads be decrypted, and according to decryption after multiple packets
Head to decryption after the packet that do not wait of multiple bytes carry out packet loss and out of order process, so as to obtain what the first terminal sent
Data.
2. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 1, it is characterised in that described
Start frame includes the title and total length of data to be sent.
3. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 1, it is characterised in that described
In S6, during the second terminal carries out packet loss and out of order process to the packet for receiving, also include：
The second terminal is decrypted to the packet and multiple data packet heads that the multiple bytes for receiving are not waited, and according to this
Data packet head carries out out of order process and packet loss detection to the packet that the multiple bytes for receiving are not waited, if data packet head and number
Do not correspond to according to the number of bag, then explanation has packet loss, now second terminal is sent out to first terminal feedback again by Relay Server
Send the packet of loss；If one of data packet head is mismatched with the content of packet, wrong bag is illustrated, it is now described
Second terminal resends the one of data packet head corresponding packet to first terminal feedback by Relay Server；
If do not lost, successfully respond to first terminal feedback reception；
The first terminal receive the second terminal resend request after, to the one of data packet head correspondence
Packet retransmitted；After the first terminal receives the successful response of reception of second terminal transmission, to described second
Terminal sends next section of data；
Meanwhile, the first terminal is when the feedback information of the second terminal is waited or the second terminal is waiting first
When terminal sends data, if waiting more than the regular hour, the first terminal resends data or second terminal and carries out
Feedback information is resend, if waiting expired times more than three times, is judged as communication abnormality.
4. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 1, it is characterised in that described
In S5, at least two wireless communication modules that the first terminal distributes in the first terminal according to random grouping algorithm with to
Relay Server sends the packet that the multiple bytes after encryption are not waited, specially：
During the first terminal sends communication request, the management server being connected with first terminal is according to first terminal
The signal quality ranking score of interior each wireless communication module match somebody with somebody Relay Server, the management server being connected with second terminal according to
In second terminal, the signal quality ranking score of each wireless communication module matches somebody with somebody Relay Server, so that signal matter in first terminal
The high wireless communication module of amount grade and the high wireless communication module of signal quality grade in second terminal be assigned to it is same in
On server, in first terminal, the low wireless communication module of signal quality grade is low with signal quality grade in second terminal
Wireless communication module is assigned on same Relay Server；
The first terminal is more than signal quality etc. to the number of the high wireless communication module distribution packet of signal quality grade
The distribution number of the low wireless communication module of level, and the first terminal that each packet is assigned randomly to one of them is wireless
On communication module.
5. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 4, it is characterised in that described
Signal quality class parameter is 0-5, and signal quality class parameter is that 0 wireless communication module represents that signal intensity is 0.
6. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 1, it is characterised in that described
In S5, data are split as what multiple 200-800 bytes were not waited by size of the first terminal according to data total amount to be sent
Packet.
7. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 6, it is characterised in that
When data total amount to be sent is not more than 1K, the data to be sent are split as multiple data by the first terminal
Bag, each packet are 200 bytes；
When data total amount to be sent is more than 1K and no more than 1M, the data to be sent are split as many by the first terminal
Individual packet, each packet are 500 bytes；
When data total amount to be sent is more than 1M, the data to be sent are split as multiple packets by the first terminal,
Each packet is 800 bytes.
8. the method for a kind of wireless communication terminal data transfer anti-intercepting and capturing according to claim 1, it is characterised in that described
Four wireless communication modules are respectively provided with first terminal and the second terminal.
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| CN106603559B (en) | 2019-09-06 |
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