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CN105120456A - Method and system for intelligent device to access to wireless network quickly - Google Patents

Method and system for intelligent device to access to wireless network quickly Download PDF

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Publication number
CN105120456A
CN105120456A CN201510565082.9A CN201510565082A CN105120456A CN 105120456 A CN105120456 A CN 105120456A CN 201510565082 A CN201510565082 A CN 201510565082A CN 105120456 A CN105120456 A CN 105120456A
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CN
China
Prior art keywords
wireless network
key
encryption
service set
set identifier
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Pending
Application number
CN201510565082.9A
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Chinese (zh)
Inventor
赵伟
周子安
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Co Ltd Of Information Technology Research Institute Of Nanjing Skyworth
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Co Ltd Of Information Technology Research Institute Of Nanjing Skyworth
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Priority to CN201510565082.9A priority Critical patent/CN105120456A/en
Publication of CN105120456A publication Critical patent/CN105120456A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method and a system for an intelligent device to access to a wireless network quickly. A unique identification code of each intelligent device is used as an encryption key for encrypting a service set identifier and a key to be transmitted of a router, and the encrypted information is coded in a DA field of destination address of wireless frames, finally, in a manner of multicasting or broadcasting, protocol frames are transmitted out, and the intelligent device is enabled to receive and decode the needed network connection information and access to the wireless network. Thereby, further security assurance for network configuration information transmitted by a transmitting end of the wireless network is added, speed of accessing to the wireless network of the intelligent device is improved, and potential safety hazard possibly caused by transmitting of network access information data packet is avoided.

Description

A kind of method of smart machine wireless network rapid access and system thereof
Technical field
The present invention relates to wireless network control technical field, in particular a kind of method that accesses fast of wireless network and system thereof.
Background technology
Along with the development of technology of Internet of things, increasing smart machine joins in Internet of Things, such as, under smart home environment, may need to access the multiple stage smart machines such as intelligent television, intelligent air condition, Intelligent air purifier in a WLAN (wireless local area network) simultaneously, and the access network that how quick, convenient, safe these smart machines are, become the first threshold that it is universal.
Smart machine accesses a specific network, generally needs service set SSID and the access key of this network, can realize the access of network after obtaining above information.In the prior art, smart machine starts a kind of (sniffer) listen mode, can monitor and receive packets all in WIFI network coverage.Therefore by the length of the destination address da field (multicast mode) or packet that the configuration information of network are encoded to radio frames, smart machine, in received packet, parses required data, accesses the network of specifying.
The mobile devices such as mobile phone pass through the service set SSID of router and access key coding in the destination address da field of radio frames or the length of packet, are then sent by the mode of multicast or broadcast.Owing to adopting the mode of multicast or broadcast, in network coverage, other equipment can receive this packet, thus obtain its network access information, cause information leakage.
Therefore, prior art awaits further improvement.
Summary of the invention
In view of above-mentioned weak point of the prior art, the object of the invention is to a kind of method for user provides wireless network to access fast and system thereof, overcome in prior art, in the scope that wireless network covers, smart machine can receive the packet that wireless network transmitting terminal sends, its network access information is caused to be revealed, the hidden danger of the network security that may cause.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A method for smart machine wireless network rapid access, wherein, comprising:
Using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission;
By encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed;
Described wireless network intelligent equipment to be accessed receives described radio frames, decodes the described service set identifier after encryption and key;
After using described exclusive identification code to decrypt described service set identifier and key, access of radio network.
The method of described smart machine wireless network rapid access, wherein, comprises the described service set identifier after encryption and key coding to the step in radio frames:
According to the mapping relations of media access address MAC and hexadecimal values, by the described service set identifier after encryption and key coding in the destination address da field of radio frames.
The method of described smart machine wireless network rapid access, wherein, comprises the described service set identifier after encryption and key coding to the step in the destination address da field of radio frames:
By the described service set identifier after encryption and key coding to M multicast mac address sequence, and described MAC Address sequence is write in the destination address da field of M radio frames.
The method of described smart machine wireless network rapid access, wherein, described wireless network intelligent equipment to be accessed receives described radio frames, and the step decoding the described service set identifier after the encryption wherein contained and key comprises:
Receive the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extract the described service set identifier after the encryption wherein contained and key.
The method of described smart machine wireless network rapid access, wherein, was also comprising step using the exclusive identification code of wireless network intelligent equipment to be accessed before encryption key:
The exclusive identification code of wireless network intelligent equipment to be accessed is obtained by the Quick Response Code scanning wireless network intelligent equipment to be accessed.
A system for smart machine wireless network rapid access, wherein, comprising:
Information encryption module, for using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission;
Coding sending module, for by encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed;
Receipt decoding module, receives described radio frames for described wireless network intelligent equipment to be accessed, decodes the described service set identifier after the encryption wherein contained and key;
Access network module, after decrypting described service set identifier and key for using described exclusive identification code, access of radio network.
The system of described smart machine wireless network rapid access, wherein, described coding sending module comprises:
Transcoder unit, for the mapping relations according to media access address MAC and hexadecimal values, by encryption after described service set identifier and key coding in the destination address da field of radio frames.
The system of described smart machine wireless network rapid access, wherein, described transcoder unit comprises:
Sequence write subelement, for by the described service set identifier after encryption and key coding to M multicast mac address sequence, and described MAC Address sequence to be write in the destination address da field of M radio frames.
The system of described smart machine wireless network rapid access, wherein, described receipt decoding module comprises:
Information extraction unit, for receiving the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extracts the described service set identifier after the encryption wherein contained and key.
The system of described smart machine wireless network rapid access, wherein, described system also comprises:
Condition code acquisition module, obtains the exclusive identification code of wireless network intelligent equipment to be accessed for the Quick Response Code by scanning wireless network intelligent equipment to be accessed.
Beneficial effect, the invention provides a kind of method and system thereof of smart machine wireless network rapid access, by using the unique identifier of every platform smart machine as encryption key, encrypt service set identifier and the key of router waiting for transmission, and the information coding after encryption in the destination address da field of radio frames, finally by the mode of multicast or broadcast, protocol frame is sent out, smart machine is received and decodes required network connection information, access of radio network, thus the network configuration information sent for wireless network transmitting terminal adds further safety guarantee, not only increase the speed of smart machine access of radio network, what it also avoid network access information packet sends the potential safety hazard that may cause simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the method that a kind of wireless network of the present invention accesses fast;
Fig. 2 is the frame assumption diagram of 802.11 radio frames that the embodiment of the present invention provides;
Fig. 3 is the MAC Address coding schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the realization flow figure of the mobile device end that the embodiment of the present invention provides;
Fig. 5 is the realization flow figure of the smart machine end that the embodiment of the present invention provides;
Fig. 6 is the system principle structure chart that a kind of wireless network of the present invention accesses fast.
Embodiment
For making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
The invention provides a kind of method of smart machine wireless network rapid access, as shown in Figure 1, comprising:
S1, using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission.
Described wireless network intelligent equipment to be accessed can be the multiple smart machine in Internet of Things, such as, under smart home environment, the smart machines such as intelligent television, intelligent air condition, Intelligent air purifier, each smart machine all has a unique identification code as its unique identification.In this step, namely adopt the unique identification code of this smart machine to be encrypted network configuration information as encryption key, strengthen the fail safe in network configuration information transmitting procedure.
Concrete, its exclusive identification code can be obtained by using the Quick Response Code that the first-class image acquisition equipment of shooting scans Wireless Communication Equipment to be accessed, or get the identification code of smart machine by the exclusive identification code receiving the wireless network to be accessed that user manually inputs.
Obtain the exclusive identification code of wireless network intelligent equipment to be accessed and the service set identifier of router waiting for transmission and access key, using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, operation is encrypted to the service set identifier of described router and key.
Concrete, in this step, multiple encryption algorithms can be used to be encrypted operation, such as: AES encryption algorithm, des encryption algorithm or MD5 algorithm, preferential, due to the fast operation of AES encryption algorithm, fail safe is high, the service set identifier of router and key choice for use AES encryption algorithm in the present invention.
S2, by encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed.
According to the mapping relations of media access address MAC and hexadecimal values, by the described service set identifier after encryption and key coding in the destination address da field of radio frames.
Figure 2 shows that the frame structure of 802.11 radio frames, this frame is mainly made up of frame head, frame data and frame check.According to 802.11 wireless protocols regulations, no matter whether application layer is encrypted transferring content, and frame head part all can not be encrypted, and therefore, in embodiments of the present invention, is coded in by network configuration information in the target MAC (Media Access Control) address da field of frame head.
MAC Address have clean culture, multicast, broadcast point.Unicast address represents single equipment, node, and multicast address or multicast address represent one group of equipment, node, and broadcast address is the special case of multicast, represent all addresses, represent: FF-FF-FF-FF-FF-FF with full F.Therefore we can be encoded to effective information in the MAC Address of multicast address or use broadcast mode, and effective information is encoding in the length of packet.Because broadcast all devices in all Packet Generations to network, and during use broadcast mode configuration network, can need to send a large amount of packets, cause very large pressure to network.Therefore, preferentially select multicast mode in embodiments of the present invention, if when router or mobile terminal do not support multicast mode, then select broadcast mode.
Based on the principle that above-mentioned MAC Address is encoded, we can in the da field of message coding to the 802.11 frame destination address that will transmit.Fig. 3 is MAC Address coding schematic diagram, multicast mac address uses 6 bytes altogether, but first three byte is fixing 01-00-51, remain rear three bytes and can be used for information coding, therefore in the particular embodiment, when being encoding in described da field by the network configuration information after encryption, adopt the described service set identifier after by encryption and key coding to M multicast mac address sequence, and by the destination address da field of described MAC Address sequence write M radio frames.
After having encoded, the Packet Generation of the information containing above-mentioned MAC Address sequence is gone out.
S3, described wireless network intelligent equipment to be accessed receive described radio frames, decode the described service set identifier after the encryption wherein contained and key.
After wireless network intelligent opening of device sniffer pattern to be accessed, the all packets in network coverage can be received, through filtering screening, filter out effective 802.11 multicast frames, receive the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extract the described service set identifier after the encryption wherein contained and key.
S4, use described exclusive identification code to decrypt described service set identifier and key after, access of radio network.
When after the described service set identifier after extracting the encryption wherein contained and key, smart machine uses the exclusive identification code of itself to be decrypted process to it, obtain service set identifier and the key of router, then use service set identifier and key access of radio network.
It is envisioned that the decipherment algorithm adopted in this step is corresponding with the cryptographic algorithm adopted in above-mentioned steps S2.
In order to be described in more details said method, for the specific implementation method of the smart machine end of the embody rule implementation method of mobile device side and wireless network side to be accessed, described method is further explained respectively below.
Be illustrated in figure 4 the realization flow of the mobile device that the embodiment of the present invention provides.First mobile device (as smart mobile phone) obtains the unique identifier of smart machine by camera scanning device Quick Response Code or the manual mode inputted, as the encryption key of information to be transmitted; Access key is inputted by the service set SSID of current the connected wireless network of software automatic acquisition mobile device and user, using foregoing as the information that will transmit, after AES encryption, the message coding after encryption in MAC Address sequence, finally by calling transmitting element, Packet Generation is gone out.
Be illustrated in figure 5 the realization flow of the smart machine end that the embodiment of the present invention provides.Smart machine, when using for the first time, starts sniffer pattern, in this mode, can receive packets all in wireless network coverage.Receiving in all packets, filter through certain Rules Filtering, obtain the MAC Address list of the packet that mobile device end sends, according to Fig. 3, rule decodes required information, the information that the unique identifier be equipped with when finally using smart machine to dispatch from the factory receives as decryption key decryption, if can correctly decipher, then enter the process that next step network connects.
The present invention also provides a kind of system of smart machine wireless network rapid access based on the above method, and as shown in Figure 6, described system comprises:
Information encryption module 110, for using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission; Its function is as described in step S1.
Coding sending module 120, for by encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed; Its function as described in step S2.
Receipt decoding module 130, receives described radio frames for described wireless network intelligent equipment to be accessed, decodes the described service set identifier after the encryption wherein contained and key; Its function is as described in step S3.
Access network module 140, after decrypting described service set identifier and key for using described exclusive identification code, access of radio network, its function is as described in step S4.
Described coding sending module comprises:
Transcoder unit, for the mapping relations according to media access address MAC and hexadecimal values, by encryption after described service set identifier and key coding in the destination address da field of radio frames.
Described transcoder unit comprises:
Sequence write subelement, for by the described service set identifier after encryption and key coding to M multicast mac address sequence, and described MAC Address sequence to be write in the destination address da field of M radio frames.
Described receipt decoding module comprises:
Information extraction unit, for receiving the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extracts the described service set identifier after the encryption wherein contained and key.
Described system also comprises:
Condition code acquisition module, obtains the exclusive identification code of wireless network intelligent equipment to be accessed for the Quick Response Code by scanning wireless network intelligent equipment to be accessed.
The invention provides a kind of method and system thereof of smart machine wireless network rapid access, by using the unique identifier of every platform smart machine as encryption key, encrypt service set identifier and the key of router waiting for transmission, and the information coding after encryption in the destination address da field of radio frames, finally by the mode of multicast or broadcast, protocol frame is sent out, smart machine is received and decodes required network connection information, access of radio network, thus the network configuration information sent for wireless network transmitting terminal adds further safety guarantee, not only increase the speed of smart machine access of radio network, what it also avoid network access information packet sends the potential safety hazard that may cause simultaneously.
Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection range that all should belong to the claim appended by the present invention.

Claims (10)

1. a method for smart machine wireless network rapid access, is characterized in that, comprising:
Using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission;
By encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed;
Described wireless network intelligent equipment to be accessed receives described radio frames, decodes the described service set identifier after encryption and key;
After using described exclusive identification code to decrypt described service set identifier and key, access of radio network.
2. the method for smart machine wireless network rapid access according to claim 1, is characterized in that, the described service set identifier after encryption and key coding is comprised to the step in radio frames:
According to the mapping relations of media access address MAC and hexadecimal values, by the described service set identifier after encryption and key coding in the destination address da field of radio frames.
3. the method for smart machine wireless network rapid access according to claim 2, is characterized in that, the described service set identifier after encryption and key coding is comprised to the step in the destination address da field of radio frames:
By the described service set identifier after encryption and key coding to M multicast mac address sequence, and described MAC Address sequence is write in the destination address da field of M radio frames.
4. the method for smart machine wireless network rapid access according to claim 3, it is characterized in that, described wireless network intelligent equipment to be accessed receives described radio frames, and the step decoding the described service set identifier after the encryption wherein contained and key comprises:
Receive the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extract the described service set identifier after the encryption wherein contained and key.
5. the method for smart machine wireless network rapid access according to claim 1, is characterized in that, the exclusive identification code of wireless network intelligent equipment to be accessed was also being comprised step before encryption key:
The exclusive identification code of wireless network intelligent equipment to be accessed is obtained by the Quick Response Code scanning wireless network intelligent equipment to be accessed.
6. a system for smart machine wireless network rapid access, is characterized in that, comprising:
Information encryption module, for using the exclusive identification code of wireless network intelligent equipment to be accessed as encryption key, encrypt service set identifier and the key of router waiting for transmission;
Coding sending module, for by encryption after described service set identifier and key coding in radio frames, and by coding after radio frames be sent to wireless network intelligent equipment to be accessed;
Receipt decoding module, receives described radio frames for described wireless network intelligent equipment to be accessed, decodes the described service set identifier after the encryption wherein contained and key;
Access network module, after decrypting described service set identifier and key for using described exclusive identification code, access of radio network.
7. the system of smart machine wireless network rapid access according to claim 6, it is characterized in that, described coding sending module comprises:
Transcoder unit, for the mapping relations according to media access address MAC and hexadecimal values, by encryption after described service set identifier and key coding in the destination address da field of radio frames.
8. the system of smart machine wireless network rapid access according to claim 7, it is characterized in that, described transcoder unit comprises:
Sequence write subelement, for by the described service set identifier after encryption and key coding to M multicast mac address sequence, and described MAC Address sequence to be write in the destination address da field of M radio frames.
9. the system of smart machine wireless network rapid access according to claim 6, it is characterized in that, described receipt decoding module comprises:
Information extraction unit, for receiving the MAC Address sequence of a described M radio frames, according to the mapping relations of media access address MAC and hexadecimal values, extracts the described service set identifier after the encryption wherein contained and key.
10. the system of smart machine wireless network rapid access according to claim 6, it is characterized in that, described system also comprises:
Condition code acquisition module, obtains the exclusive identification code of wireless network intelligent equipment to be accessed for the Quick Response Code by scanning wireless network intelligent equipment to be accessed.
CN201510565082.9A 2015-09-08 2015-09-08 Method and system for intelligent device to access to wireless network quickly Pending CN105120456A (en)

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Application publication date: 20151202