CN101426199B - ZigBee wireless network data safe transmission system - Google Patents
ZigBee wireless network data safe transmission system Download PDFInfo
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- CN101426199B CN101426199B CN2007101849379A CN200710184937A CN101426199B CN 101426199 B CN101426199 B CN 101426199B CN 2007101849379 A CN2007101849379 A CN 2007101849379A CN 200710184937 A CN200710184937 A CN 200710184937A CN 101426199 B CN101426199 B CN 101426199B
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Abstract
A safe transmission system for wireless network data comprises the following components: a network key central control end which includes a first Zigbee chip and a computer terminal interface for setting a preset unit time when the network key changes once and the parameter of alternation criterion by the user with a network key calculation program, and generating an enciphered network key to a data transmitting end in each unit of time, and at least one data receiving end. The data transmitting end comprises a second Zigbee chip, a first wifi chip and data to be transmitted, or dynamically generated image-sound data. The second Zigbee chip deciphers the enciphered network key to a plain text network key and enciphers the data to be transmitted or the image-sound data to a cipher text with the first wifi chip, and then the cipher text is transmitted to a data receiving end by the first wifi chip. The data receiving end comprises a third Zigbee chip and a second wifi chip. The third Zigbee chip deciphers the enciphered network key into the plain text network key after receiving. The second wifi chip deciphers the cipher text according to the plain text network key.
Description
Technical field
The present invention is about a kind of safe wireless network transmission system, be meant that especially a kind of ZigBee of utilization does the transmission of the refined net gold key that regularly upgrades, receiving terminal is also deciphered refined net gold key with ZigBee, data come combination algorithm to encrypt with the network gold key of deciphering again, utilize another kind of wifi chip to transmit again.
Background technology
In recent years, personal computer becomes the most universal a kind of household appliances already.Personal computer is main by the past multimedia function, develops all built-in network function of nearly all so far computer of being sold.Mobile computer further has the function of wireless Internet access.The network function of individual user by computer connects internet search or exchange message, commodity, electronics post the letter transmitting-receiving, invest domestic and international storage of negotiable securities, or talk, and make network two ends user just as about the neighbours of floor.In addition, the computer of small-sized, middle-size and small-size and large enterprise more provides inner wet end so that the employee to be provided the pipeline of swap data file, employee's access corporate server database each other except possessing above function.
The function of internet is a unbounded, and it not only provides people to utilize the network acquisition of information.Even to this day, it further becomes image, sound switching plane (cloth fall lattice blog) in fact.The user only needs his computer just can be transferred to the internet via grid line connection ADSL data wire or cable of cable TV line.Generally speaking, as long as the network card of two computers is surfed the Internet via the grid line connection or the server of enterprises, just the file that is stored in a computer can be passed to another computer.What is more, and with the person, the wireless telecommunications progress has more and more many individual user and enterprise to use rapidly, or considers to use wireless network, is subjected to the yoke of grid line with minimizing.
Wireless network can be used for transmitting various data, comprise image format files, audio format or audio-visual mixed format, file format file, or application format all can.But, wireless network is compared with the entity on-line network, its internet security, often become one of important reason that opposition group that wireless network uses adhered to, particularly, wireless network than cable network more by one of relieved reason is not: data transmit and to be blocked in the way and sender and appointed receiptor are ignorant.
Although, the fail safe that can use network gold key to come protecting network between known wireless network base stations and the user side.Yet in the prior art, it is fixed that in a single day these network gold keys are set the many genus in back.Just can change once more only over time, such result is easy to just might to become that network hacker attacks to picture.The another kind person of being to use must just can force to change network gold key near base station.Therefore, this mode is inconvenient.In addition, the fail safe of network gold key transmission itself also often is an important problem.
The present invention utilizes the ZigBee chip of ZigBee/802.15.4 communications protocol to carry out the encrypt and decrypt of network gold key.The ZigBee chip can be easy to and the microprocessor combination, with the go forward side by side encrypt and decrypt of line data of access numerical data.The ZigBee chip uses band transmissions between the 2.4-2.5GHz.In addition, utilize network gold key again with data to be passed with wifi chip encryption and deciphering.The hacker must crack two kinds of different chip institute ciphered data simultaneously and just be obtained clear data.
Therefore, a purpose of the present invention is to provide the user that more convenient, safer a kind of data transfer mode is arranged.
Summary of the invention
A purpose of the present invention provides a kind of wireless network secure system for transmitting, by this system data can be safely approximately by first transfer to second ground.
The present invention discloses a kind of wireless network data safe system for transmitting, comprise: the control end comprises a Zigbee chip and a computer terminal interface in the network gold key, one network gold key calculation program, to provide a user to utilize the every change of the network gold key calculation program setting network gold key scheduled time once and the parameter of change institute foundation, and when per scheduled time, produce a network gold key of encrypting according to this and divide and deliver to a data sending terminal and at least one data receiver.Data sending terminal comprises the 2nd Zigbee chip, a wifi chip and data to be transmitted, or dynamically produce video-audio data.The 2nd Zigbee chip is data that according to this will be to be transmitted behind the network gold key expressly with the network gold key deciphering of encrypting, or the video-audio data that dynamically produces is 64 ciphertexts with a wifi chip encryption, transmits ciphertext to data receiver with a wifi chip again.Data receiver comprises the 3rd Zigbee chip, the 2nd wifi chip.The 3rd Zigbee chip will be deciphered to plaintext network gold key closely after receiving the network gold key of this encryption, and the 2nd wifi chip is clear data according to the golden key of this plaintext network with this decrypt ciphertext.
Description of drawings
Fig. 1 is the schematic diagram according to wireless network secure transmission system of the present invention.
Fig. 2 is a Zigbee chip functions block schematic diagram.
Drawing reference numeral:
10 ZigBee chip 10a, 20a, 30a, 40a are held in the generation of network gold key
First data receiver, 30 wifi chip 30c, 40c
Second data receiver, 40 computers or terminating machine 10d
Receiver module 70 transmitter modules 75
MAC module 80 emission/receptions/MAC control interface 85
I/O port 65 MCU 60
Embodiment
By following detailed description in conjunction with the accompanying drawings, can understand the plurality of advantages of summary of the invention and the present invention easily.
The invention provides a kind of transferring encrypted data of wireless network chip (for example similarly being the chip that meets wIFI) of utilizing, transmit transmitting terminal and each receiving terminal of the network gold key of encryption with the ZigBee chip in the mode of wireless telecommunications to data, providing transmitting terminal to carry out data encryption according to this, with receiving terminal data decryption according to this.
A system architecture of the present invention please refer to schematic diagram shown in Figure 1.It has comprised generation end 10, data sending terminal 20 and several receiving terminals 30,40 of network gold key, for example, and first data receiver 30, second data receiver 40.The outfit of the generation end 10 of network gold key is a computer or terminating machine 10d, a ZigBee chip 10a, antenna 10b.20 of data sending terminals comprise a ZigBee chip 20a, an antenna 20b, a wifi chip 20c.First data receiver 30 has identical outfit with data sending terminal 20, comprises a ZigBee chip 30a, an antenna 30b, a wifi chip 30c.Second data receiver 40 also has identical outfit, comprises a ZigBee chip 40a, an antenna 40b, a wifi chip 40c.
Wherein, ZigBee chip 10a, 20a, 30a, 40a please refer to Fig. 2, all include identical module: a receiver module (receiving module) 70, one transmitter module (transmission module) 75, one MAC (media access control) module 80, an emission/reception/MAC control interface 85, a transmission channel detection module 90 and a MCU (microprocessor) 95.Emission/reception/MAC control interface 85 has comprised the interface that is connected with the I/O port 65 of MCU 60.
The generation end 10 of network gold key is to utilize a computer 10d or a terminating machine by a user, utilize network gold key algorithm routine to produce, the user can import, and for example similarly to be the data relevant with number such as birthday, date, time or numeral produce network gold key as the parameter of algorithm, and produce the back per unit for the first time at network gold key and be transformed into another network gold key after the time again.After network gold key can be encrypted to the radiofrequency signal package in 128 modes of AES (advanced encryption standard) by ZigBee chip 10a, be sent to data sending terminal 20 and first data receiver 30 and second data receiver 40 simultaneously by antenna 10b again.The generation of network gold key and encrypt and can be carried out by MCU 60, the data that obtain user's input by the I/O port 65 of MCU60 change into radiofrequency signal by MAC module 80, send out via transmitter module 75 again.
Behind the antenna 20b received RF signal package of data sending terminal 20, the receiver module 70 of ZigBee chip 20a is through the network gold key demodulation of MAC module 80 with AES 128 bit encryptions, to be reduced to network gold key expressly, offer the wifi chip 20c of data sending terminal 20 again via MCU 60.The data of data sending terminal can be any image format data, audio format data or audio-visual mixed format data or graphical format or text formattings or comprise one or more of above-mentioned formatted data.The data of data sending terminal and the gold of network expressly key send by antenna 20a in conjunction with passing to the enciphered data that wifi chip 20c is encrypted to 64 via the I/O port 65 of MCU 60 again.
The antenna 30b of first data receiver 30 is after receiving the radiofrequency signal package that 128 modes of AES encrypt, and ZigBee chip 30b is demodulated into digital signal earlier, and deciphering is network gold key expressly.Another person, the wifi chip 30c of first data receiver 30 utilize the enciphered data of 64 of plaintext network key pairs to be decrypted, and are clear data with the deciphering.
Same thing is also carried out at second data receiver 40.The antenna 40b of first data receiver 40 is after receiving the radiofrequency signal package that 128 modes of AES encrypt, and ZigBee chip 40b is demodulated into digital signal earlier, and deciphering is network gold key expressly.Another person, the wifi chip 40c of second data receiver 40 utilize the enciphered data of 64 of plaintext network key pairs to be decrypted, and are clear data with the deciphering.
According to a preferred embodiment of the present invention, network gold key is that time per unit all can be changed once, and once sends to the data transfer and first data receiver 30, and the second even the 3rd data receiver, even the more data receiving terminal.
Therefore, the present invention has following advantage:
1. all encrypt when network gold key is transmitted.
2. the network gold key of encrypting is sent by different chips with ciphered data, therefore, and safety and reliability.
Though the present invention illustrates as above with preferred embodiments, so it is not only to terminate in the foregoing description that in order to limit the present invention's spirit with the invention entity.Be with, the modification of being done in not breaking away from spirit of the present invention and scope all should be included in the claim scope.
Claims (8)
1. wireless network data safe system for transmitting, described system comprises at least:
Control end in the network gold key, comprise a Zigbee chip and a computer terminal interface, one network gold key calculation program, providing a user to utilize the every change of the described network gold key described network gold key of the calculation program setting scheduled time once and the parameter of change institute foundation, and when per scheduled time, produce a network gold key of encrypting according to this;
One data sending terminal comprises the 2nd Zigbee chip, a wifi chip, and data to be transmitted;
One first data receiver comprises the 3rd Zigbee chip, the 2nd wifi chip;
The control end transmits a network gold key of encrypting to described data sending terminal and described first data receiver in each scheduled time in the described network gold key, the 2nd Zigbee chip of described data sending terminal is plaintext network gold key with the network gold key deciphering of described encryption, and according to described plaintext network gold key described data encryption to be transmitted is become enciphered data by a described wifi chip, be resent to described first data receiver, the 3rd Zigbee chip of described first data receiver will be deciphered after receiving the network gold key of described encryption and be plaintext network gold key, and described the 2nd wifi chip is clear data according to described plaintext network gold key with described enciphered data deciphering.
2. wireless network data safe system for transmitting as claimed in claim 1, a wherein above-mentioned Zigbee chip comprises a microprocessor, and described microprocessor produces different refined net gold keys at the fixed time according to the parameter of network gold key calculation program and user's setting.
3. wireless network data safe system for transmitting as claimed in claim 1, the parameter that wherein above-mentioned user sets is the data with digital correlation, with the data of digital correlation be selected from group that date, time and Any Digit form wherein one and mix.
4. wireless network data safe system for transmitting as claimed in claim 1, the scheduled time of the replacing refined net gold key that wherein above-mentioned user is scheduled to is 30 minutes to 120 minutes.
5. wireless network data safe system for transmitting as claimed in claim 1, wherein above-mentioned refined net gold key is for encrypting according to 128 Advanced Encryption Standard AES.
6. wireless network data safe system for transmitting as claimed in claim 1, wherein above-mentioned enciphered data are 64 enciphered data.
7. wireless network data safe system for transmitting as claimed in claim 1, wherein above-mentioned data to be transmitted are to be selected from by the image format data of static state, static audio format data, static audio-visual mixed format data, dynamic image format data, dynamic audio format data, dynamic audio-visual mixed format data, the graphical format data, and the group that formed of text formatting data wherein one and mixing.
8. wireless network data safe system for transmitting as claimed in claim 1, the 2nd wherein above-mentioned Zigbee chip comprises a microprocessor, so that described refined net gold key is decrypted, the 3rd above-mentioned Zigbee chip also comprises a microprocessor, so that described refined net gold key is decrypted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101849379A CN101426199B (en) | 2007-10-30 | 2007-10-30 | ZigBee wireless network data safe transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101849379A CN101426199B (en) | 2007-10-30 | 2007-10-30 | ZigBee wireless network data safe transmission system |
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| Publication Number | Publication Date |
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| CN101426199A CN101426199A (en) | 2009-05-06 |
| CN101426199B true CN101426199B (en) | 2010-09-22 |
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| CN2007101849379A Expired - Fee Related CN101426199B (en) | 2007-10-30 | 2007-10-30 | ZigBee wireless network data safe transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104219660B (en) * | 2013-06-05 | 2017-11-21 | 棣南股份有限公司 | The processing system and its method of WLAN are set |
| CN104507081A (en) * | 2014-12-12 | 2015-04-08 | 宇龙计算机通信科技(深圳)有限公司 | Data downloading method, data downloading device and data downloading terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655195A (en) * | 2004-09-11 | 2005-08-17 | 李良杰 | Intelligent computer control system for anti-theft alarm and remote reviewing |
| CN1852426A (en) * | 2005-12-28 | 2006-10-25 | 陈沨 | Remote wireless realtime multi-media-messaging service security system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1655195A (en) * | 2004-09-11 | 2005-08-17 | 李良杰 | Intelligent computer control system for anti-theft alarm and remote reviewing |
| CN1852426A (en) * | 2005-12-28 | 2006-10-25 | 陈沨 | Remote wireless realtime multi-media-messaging service security system |
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| CN101426199A (en) | 2009-05-06 |
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