CN104660368B - A kind of information coding and transmission method based on the UDP network transmission protocols - Google Patents
A kind of information coding and transmission method based on the UDP network transmission protocols Download PDFInfo
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- CN104660368B CN104660368B CN201310600284.3A CN201310600284A CN104660368B CN 104660368 B CN104660368 B CN 104660368B CN 201310600284 A CN201310600284 A CN 201310600284A CN 104660368 B CN104660368 B CN 104660368B
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- transmitting terminal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0079—Formats for control data
Abstract
The invention discloses a kind of information coding and transmission method based on the UDP network transmission protocols, it is comprised the steps of：（1）, define data transmitting terminal A；（2）, define data transmitting terminal B；（3）, data transmitting terminal A and data transmitting terminal B make an appointment；（4）, establish the mapping relations of transmitting terminal A and data transmitting terminal B：According to characteristic value m, the transmission communication of UDP message is completed.The beneficial effects of the invention are as follows：The Dynamic data exchange for actually to transmit with implication data mode is in the cipher mode of the network information, relation of hinting obliquely between the data and actual data content of transmission is preset by data transmitting terminal A and data transmitting terminal B, with stronger confidentiality, realize the equipment in encrypted wireless network directly can send information by the way of connectionless to the equipment beyond network.
Description
Technical field
The present invention relates to a kind of information coding and transmission method based on the UDP network transmission protocols, belong to field of communication technology.
Background technology
Information encrypts the safety for being conducive to information in wireless network, but also limit the equipment in encrypted wireless network
Directly to do not obtain key, the equipment being not added in identical wireless network send information.It is wireless that these do not add encryption
The equipment of network can be that some do not support the weaker embedded nothing of the operational capability of current network Encryption Algorithm or cryptographic protocol
The line network equipment or some do not obtain the common radio network equipment of key temporarily, or be incorporated into other areas of coverage
Equipment in the identical wireless network in domain.
The content of the invention
It is an object of the invention to provide a kind of information coding and transmission method based on the UDP network transmission protocols, can realize
Equipment in encrypted wireless network directly can send information by the way of connectionless to the equipment beyond network.
The purpose of the present invention is what is be achieved through the following technical solutions：A kind of information based on the UDP network transmission protocols
Coding and transmission method, it is comprised the steps of：
（1）, define data transmitting terminal A, data transmitting terminal A be accessed encrypted WLAN equipment and use nothing
The UDP network transmission protocols of connection send information to other network address；
（2）, define data transmitting terminal B, data transmitting terminal B is does not access foregoing WLAN but has wireless network work(
Data transmitting terminal A and data transmitting terminal B is in identical wireless network signal coverage the equipment of energy at the same time；
（3）, data transmitting terminal A and data transmitting terminal B make an appointment：A time span section n is preset, is preset
The information of the byte length sent in this time span section n, according to the real data byte sequence for being sent to data transmitting terminal B
Different length s define the data byte sequence for being sent to data transmitting terminal B each byte the different characteristic values of s
M, m are 0 or 1；
（4）, establish the mapping relations of data transmitting terminal A and data transmitting terminal B：According to characteristic value m, data transmitting terminal A to
Data transmitting terminal B repeatedly sends the data of equal length s in predetermined time span section n, and the transmission for completing UDP message is led to
News.
The real data byte length for being sent to data transmitting terminal B, which is less than, to be preset in this time span section n
The byte length of transmission.
The beneficial effects of the present invention are：The Dynamic data exchange for actually to transmit with implication data mode is in network
The cipher mode of information, the relation of hinting obliquely between the data and actual data content of transmission are launched by data transmitting terminal A and data
End B is preset, and has stronger confidentiality, connectionless side can be used by realizing the equipment in encrypted wireless network
Formula directly sends information to the equipment beyond network.
Brief description of the drawings
Fig. 1 hints obliquely at relation schematic diagram for data packet and character bit in real data byte sequence；
Fig. 2 is the data packet and the relation of character bit in real data byte sequence of duplicate contents.
Embodiment
Embodiment further describes technical scheme below in conjunction with the accompanying drawings, but claimed scope is not limited to
In described.
A kind of information coding and transmission method based on the UDP network transmission protocols, it is comprised the steps of：
（1）, define data transmitting terminal A, data transmitting terminal A be accessed encrypted WLAN equipment and use nothing
The UDP network transmission protocols of connection send information to other network address；
（2）, define data transmitting terminal B, data transmitting terminal B is does not access foregoing WLAN but has wireless network work(
Data transmitting terminal A and data transmitting terminal B is in identical wireless network signal coverage the equipment of energy at the same time；
（3）, data transmitting terminal A and data transmitting terminal B make an appointment：A time span section n is preset, is preset
The information of the byte length sent in this time span section n, according to the real data byte sequence for being sent to data transmitting terminal B
Different length s define the data byte sequence for being sent to data transmitting terminal B each byte the different characteristic values of s
M, m are 0 or 1, for example the length for the data being sent in a data packet of data transmitting terminal B is 6, then can define and be sent to data
The 6th of the first character section of the data byte sequence of transmitting terminal B is 1, or can also be expressed as 0 according to making an appointment, so
The length for the data being sent to afterwards in a data packet of data transmitting terminal B is 5, can define the data for being sent to data transmitting terminal B
The 5th of the first character section of byte sequence is the characteristic value for distinguishing the byte information that length is 6；
（4）, establish the mapping relations of data transmitting terminal A and data transmitting terminal B：According to characteristic value m, data transmitting terminal A to
Data transmitting terminal B repeatedly sends the data of equal length s in predetermined time span section n, and the transmission for completing UDP message is led to
News, such as Fig. 1, data packet hint obliquely at relation schematic diagram with character bit in real data byte sequence, without weight between data packet A, B, C, D
Multiple content, data packet A repeatedly send the data of equal length S1, data packet B according to byte length S1 in predetermined time period n
Repeatedly send the data of equal length S2 in predetermined time period n according to byte length S2, such as Fig. 2, has between data packet A, B
Duplicate contents, data packet A and data packet B byte equal length then repeatedly send the number of equal length in predetermined time period n
According to bag A and data packet B.
The real data byte length for being sent to data transmitting terminal B, which is less than, to be preset in this time span section n
The byte length of transmission.
When existing data transmitting terminal A is needed to data transmitting terminal B transmission information, data transmitting terminal A is using connectionless
The UDP network transmission protocols send information to data transmitting terminal B, such as：255.255.255.255 data transmitting terminal B is because be in nothing
In gauze network signal cover so as to the information for being sent to aforementioned network address is listened to, because data transmitting terminal A is in
So its all information sent is just sent after being all encrypted in encrypted wireless network, therefore the hair that data transmitting terminal B is obtained
Information toward foregoing network address is encrypted information, and addition is not identical with data transmitting terminal A because of data transmitting terminal B
Encrypted wireless network, be not also known a priori by the key of encryption wireless network, therefore data transmitting terminal B cannot pass through decryption
Understand the information that data transmitting terminal A is sent.
And the invention enables the equipment in encrypted wireless network can use connectionless mode directly to network with
Outer equipment sends information, and the Dynamic data exchange for actually to transmit with implication data mode is in the encryption side of the network information
Formula, while the relation of hinting obliquely between the data and actual data content sent is set in advance by data transmitting terminal A and data transmitting terminal B
It is fixed, therefore this method has stronger confidentiality, even if third party has intercepted and captured data packet, and knows it is to use this coding transmission side
Method, can not also understand the content that data transmitting terminal A is sent to data transmitting terminal B.
It can only be resolved to when recipient receives the data of identical numerical value in order to increase the reliability of transmission in this method
The data sent are repeated, will not be obscured because of the information of identical numerical value is resolved to different information so as to produce, using more
Simple method it is connectionless, unresponsive, there are the network environment of packet loss in reliably transmitted into row information, send the number of information
According to any special device or special software are not required on transmitting terminal A, as long as it can send UDP message to particular address
Bag, and this requires all Wireless Communication Equipment all to possess, receiving need not be any on the data transmitting terminal B of information
Special device, as long as it can intercept and be sent to the data packet of particular network address and can simultaneously parse content in data packet i.e.
Can.
Claims (2)
- A kind of 1. information coding and transmission method based on the UDP network transmission protocols, it is characterised in that：It is comprised the steps of：（1）, define data transmitting terminal A, data transmitting terminal A is to have accessed the equipment of encrypted WLAN and using connectionless The UDP network transmission protocols to other network address transmit；（2）, define data transmitting terminal B, data transmitting terminal B is not access foregoing WLAN but with radio network functions Data transmitting terminal A and data transmitting terminal B is in identical wireless network signal coverage equipment at the same time；（3）, data transmitting terminal A and data transmitting terminal B make an appointment：A time span section n is preset, presets this The information of the byte length sent in time span section n, according to being sent to the real data byte sequence of data transmitting terminal B not The different characteristic value m of s, m of each byte of the data byte sequence for being sent to data transmitting terminal B are defined with length s For 0 or 1；（4）, establish the mapping relations of data transmitting terminal A and data transmitting terminal B：According to characteristic value m, data transmitting terminal A is to data Transmitting terminal B repeatedly sends the data of equal length s in predetermined time span section n, completes the transmission communication of UDP message.
- 2. the information coding and transmission method according to claim 1 based on the UDP network transmission protocols, it is characterised in that：Institute The real data byte length for being sent to data transmitting terminal B stated is less than the byte for presetting and being sent in this time span section n Length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600284.3A CN104660368B (en) | 2013-11-25 | 2013-11-25 | A kind of information coding and transmission method based on the UDP network transmission protocols |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600284.3A CN104660368B (en) | 2013-11-25 | 2013-11-25 | A kind of information coding and transmission method based on the UDP network transmission protocols |
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| CN104660368A CN104660368A (en) | 2015-05-27 |
| CN104660368B true CN104660368B (en) | 2018-04-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815991A (en) * | 2005-01-18 | 2006-08-09 | 马维尔国际贸易有限公司 | New WLAN TDM protocol |
| CN101426005A (en) * | 2007-10-29 | 2009-05-06 | 中兴通讯股份有限公司 | IP data packet packaging, sending and receiving method for wireless broadcast system |
| US7817631B1 (en) * | 2008-07-09 | 2010-10-19 | Google Inc. | Network transfer protocol |
| CN103327030A (en) * | 2013-07-10 | 2013-09-25 | 上海庆科信息技术有限公司 | Method for information transmission by utilizing Wi-Fi (Wireless-Fidelity) message length |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090010259A1 (en) * | 2007-07-08 | 2009-01-08 | Alexander Sirotkin | Device, system, and method of classification of communication traffic |
-
2013
- 2013-11-25 CN CN201310600284.3A patent/CN104660368B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815991A (en) * | 2005-01-18 | 2006-08-09 | 马维尔国际贸易有限公司 | New WLAN TDM protocol |
| CN101426005A (en) * | 2007-10-29 | 2009-05-06 | 中兴通讯股份有限公司 | IP data packet packaging, sending and receiving method for wireless broadcast system |
| US7817631B1 (en) * | 2008-07-09 | 2010-10-19 | Google Inc. | Network transfer protocol |
| CN103327030A (en) * | 2013-07-10 | 2013-09-25 | 上海庆科信息技术有限公司 | Method for information transmission by utilizing Wi-Fi (Wireless-Fidelity) message length |
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| CN104660368A (en) | 2015-05-27 |
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