CN103945369B - A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment - Google Patents

A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment Download PDF

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Publication number
CN103945369B
CN103945369B CN201310018532.3A CN201310018532A CN103945369B CN 103945369 B CN103945369 B CN 103945369B CN 201310018532 A CN201310018532 A CN 201310018532A CN 103945369 B CN103945369 B CN 103945369B
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Prior art keywords
data frame
length
ssid
wifi
password
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CN103945369A (en
Inventor
李志为
刘宗孺
姚博
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Hangzhou Bolian Intelligent Technology Co., Ltd.
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Hangzhou Gubei Electronic Technology Co Ltd
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Priority to CN201310018532.3A priority Critical patent/CN103945369B/en
Priority to PCT/CN2013/001616 priority patent/WO2014110704A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/30—Security of mobile devices; Security of mobile applications
    • H04W12/37—Managing security policies for mobile devices or for controlling mobile applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

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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 discloses a kind of Internet-surfing configuration method of WIFI equipment, generates the data frame for configuration of surfing the Net, and the data frame includes predetermined fixed character string MAGIC CODE, data frame length, SSID length, SSID, encryption type and password；The AES that data frame can be consulted by configuring and being configured both sides, is encrypted, is then transmitted the data frame after encryption.In transmission process, the number of the corresponding packet (UDP) sent of length of data frame, length corresponding to each UDP message bag is the numerical value of its data frame.

Description

A kind of length by checking WIFI packets realizes the online configuration of WIFI equipment Method
Technical field
The present invention relates to a kind of Internet-surfing configuration method of WIFI equipment.
Background technology
, it is necessary to take the SSID for the AP to be connected, auth type, close first when traditional WIFI equipment is connected with AP Code.
Current collocation method includes：
1st, required connection AP SSID, auth type and password are sent by external communication interface.
This method needs equipment, additionally draws communication interface, and to the appearance design of equipment, user's operation brings very big It is difficult.
2nd, WIFI equipment oneself will be configured to ap mode or AD-HOC patterns first, allow other WIFI equipments (android iOS mobile phones, notebook computer etc.), log in, be then transmitted across required configuration information by ICP/IP protocol Go to be configured
This method can cause other WIFI equipments to disconnect original WIFI network, cause network interruption；Have simultaneously A little operating system such as iOS, the exploitation of restricted software, have disabled the api interface of WIFI connections, so as to which cause cannot direct software reality Now, it is necessary to which user connects manually.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of length by checking WIFI packets and realize that WIFI is set Standby Internet-surfing configuration method.
A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment, comprises the following steps：
The data frame for configuration of surfing the Net is generated, the data frame includes predetermined fixed character string MAGIC-CODE, number According to frame length, SSID length, SSID, encryption type and password；
The AES that data frame is consulted by configuring and being configured both sides, is encrypted, then by the number after encryption It is transmitted according to frame, in transmission process, the number of the corresponding UDP message bag sent of length of data frame, each UDP message bag pair The length answered is numerical value corresponding to each byte inside its data frame；
According to the MAC Address of WIFI equipment, the data for establishing different WIFI equipments respectively send the chained list of length；
Fixed character string MAGIC-CODE can be matched by checking whether；
If matching fixed character string, data frame is obtained；
Check whether verification summation checksum is correct, if correctly, obtaining SSID according to the data frame, encrypting class Type and password.
The positive effect of the present invention is：Technique effect：
1st, the WIFI equipment being configured, on the premise of it need not add AD-HOC or AP functions, you can complete its online Configuration, reduces the use of device resource
2nd, without external other communication interfaces, WIFI radio configurations are directly passed through
3rd, it is compatible well, need that the equipment that WIFI communicates can be supported for various, as long as being integrated with UDP communication protocols View, you can realize to the configuration for the WIFI equipment being configured,
4th, solve the operating system that such as iOS is limited WIFI api interfaces, realize the allocation problem of WIFI equipment
5th, this collocation method is not limited by the cryptographic protocol (WEP, WPA, WPA2) of legacy network, because this method It is that regardless of encryption method, packet content is encrypted, and data packet length is not come transmission information using the length of packet Become.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in being described below to the present invention It is briefly described.
Fig. 1 is the building form schematic diagram for the data frame that one embodiment of the present of invention provides.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
A kind of length by checking WIFI packets of the present invention realizes that the Internet-surfing configuration method of WIFI equipment is included such as Lower step：
WIFI configurations equipment generates the data frame for configuration of surfing the Net, and the data frame includes predetermined fixed character string MAGIC-CODE, data frame length, SSID length, SSID, encryption type and password；Optionally, the data frame also includes school Test word.Optionally, the fixed character string, data frame length, SSID length, SSID, encryption type, password and check word is suitable Sequence and the fixed character string, data frame length, SSID length, SSID, encryption type, the shared word of password or check word Corresponding relation between joint number and represented value is default or exterior arrangement.
Data frame is encrypted by AES encryption algorithm.
Send the UDP message bag quantity of data frame length.As data frame length be 60, send 60 UDP, each UDP numbers Numerical value according to the length of bag for the byte inside corresponding data frame, the content of UDP message bag is actually invalid content.
It is configured MAC Address of the WIFI equipment according to WIFI equipment, the data for establishing different WIFI equipments respectively send length The chained list of degree；
It is configured WIFI equipment and checks whether that fixed character string MAGIC-CODE can be matched；
If matching fixed character string, it is configured WIFI equipment and then obtains data frame；
Whether correct it is configured WIFI equipment inspection verification summation checksum, if correctly, according to the data frame Obtain SSID, encryption type and password.
Be configured WIFI equipment use the acquisition SSID, encryption type connected with password corresponding to WIFI AP networks, And confirmation broadcast data is sent, confirm that configuration is completed.
The implementation of above-described embodiment is specifically illustrated below：
The online of WIFI equipment needs to obtain its connection AP SSID (maximum 32 bytes) first, encryption type (NONE, WEP, WPA, WPA2), password.
For the equipment for being not yet connected to AP, although the packet of WIFI passages can be listened to, due to Most of AP networks cannot obtain the actual data content of its transmission all by encryption, intelligently listen to transmission The length of data.
Present invention design, it is exactly in its configuration WIFI equipment application program developed above, is sent out by WIFI network UDP hash strings are sent, the length of different pieces of information string corresponds to our encoded contents, is configured equipment and listens to same WIFI to set After standby (MAC Address differentiation) sends the serial data with configuration feature, its configuration information is obtained, realization is configured.
The present invention includes following several parts：The coding and hair of SSID, encryption type and password above configuration equipment Send；The monitoring and information for being configured equipment parse.
First, the data frame composition of SSID, encryption type and password
We configure the AP of online SSID as needed first, encryption type, password, generate the required data transmitted Frame, the composition of data frame is as shown in Figure 1.
MAGIC-CODE above, for configuration WIFI equipment and be configured WIFI equipment agreement fixed character string such as (BLK) 3 bytes also, are taken for the initial code of mark data frame.
The length of data, 1 byte.
Check word, check whether data frame is correct, 2 bytes.Obtained by the way that the numerical value in all data frames is added.
SSID length, 1 byte
SSID, to need the SSID character strings of the AP on configuring
Encryption type：0none (is not encrypted), 1WEP encryptions, 2WPA encryptions, 3WPA2 encryptions, takes 1 byte.
Password：The remaining part of data frame is password string.
2nd, the transmission of data frame
The transmission of data, it is as follows by sending a string of UDP method of packet.
By each byte inside data frame, corresponding numerical value, the length of transmission UDP message bag.In data frame Numerical value corresponding to character " 1 " is 31, then sends the UDP message bag of 31 bytes.
Such as：Some data frame length is 30, then cycles through 30 UDP packet, each UDP data packet length The numerical value of its corresponding correspondence position.
3rd, the WIFI equipment being configured
The WIFI equipment being configured, each WIFI of scan round passage, intercept possible configuration data bag.
The flow intercepted：
According to the MAC Address of WIFI equipment, the data for establishing distinct device respectively send the chained list of length
MAGIC-CODE can be matched by checking whether
Obtain data frame
Check whether checksum is correct
Due in transmission process, other packets may be inserted, it is thus possible to which data frame is abnormal, it is necessary to circulate prison Listen
4th, it is configured equipment connection WIFI network
After the WIFI equipment correct SSID of acquisition being configured, encryption type and password, WIFI AP corresponding to connection Network, while confirmation broadcast data is sent, confirm that configuration is completed.
Technique effect：
By the method for foregoing invention, solve the problems, such as following
1st, the WIFI equipment being configured, on the premise of it need not add AD-HOC or AP functions, you can complete its online Configuration, reduces the use of device resource
2nd, without external other communication interfaces, WIFI radio configurations are directly passed through
3rd, it is compatible well, need that the equipment that WIFI communicates can be supported for various, as long as being integrated with UDP communication protocols View, you can realize to the configuration for the WIFI equipment being configured,
4th, solve the operating system that such as iOS is limited WIFI api interfaces, realize the allocation problem of WIFI equipment
Realization in order to demonstrate the invention, describe above-mentioned embodiment.But other changes of the present invention Change and change, will be readily apparent to one having ordinary skill, in the range of essence disclosed in this invention and basic principle Any modification/change or imitate conversion belong to the present invention claims.

Claims (4)

  1. A kind of 1. Internet-surfing configuration method of WIFI equipment, it is characterised in that
    The data frame for configuration of surfing the Net is generated, the data frame includes predetermined fixed character string MAGIC-CODE, data frame Length, SSID length, SSID, encryption type and password；
    The AES that data frame is consulted by configuring and being configured both sides, is encrypted, then by the data frame after encryption It is transmitted, in transmission process, the number of the corresponding UDP message bag sent of the length of data frame, corresponding to each UDP message bag Length is numerical value corresponding to each byte inside its data frame；
    According to the MAC Address of WIFI equipment, the data for establishing different WIFI equipments respectively send the chained list of length；
    Fixed character string MAGIC-CODE can be matched by checking whether；
    If matching fixed character string, data frame is obtained；
    Check whether verification summation checksum correct, if correctly, SSID is obtained according to the data frame, encryption type and Password.
  2. 2. Internet-surfing configuration method according to claim 1, it is characterised in that the data frame also includes check word.
  3. 3. Internet-surfing configuration method according to claim 2, it is characterised in that the fixed character string, data frame length, SSID length, SSID, encryption type, the order and the fixed character string, data frame length, SSID of password and check word Corresponding relation between length, SSID, encryption type, password or the shared byte number of check word and represented value is default Or exterior arrangement.
  4. 4. Internet-surfing configuration method according to claim 1, it is characterised in that methods described also includes：
    Using the SSID of the acquisition, encryption type connected with password corresponding to WIFIAP networks, and send confirmation broadcast data, Confirm that configuration is completed.
CN201310018532.3A 2013-01-18 2013-01-18 A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment Active CN103945369B (en)

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Application Number Priority Date Filing Date Title
CN201310018532.3A CN103945369B (en) 2013-01-18 2013-01-18 A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment
PCT/CN2013/001616 WO2014110704A1 (en) 2013-01-18 2013-12-20 Method for implementing network access configuration of wifi device by checking length of wifi data packet

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Application Number Priority Date Filing Date Title
CN201310018532.3A CN103945369B (en) 2013-01-18 2013-01-18 A kind of length by checking WIFI packets realizes the Internet-surfing configuration method of WIFI equipment

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CN103945369B true CN103945369B (en) 2017-12-19

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CN104219662B (en) * 2014-08-19 2019-05-07 新华三技术有限公司 A kind of sending method and equipment of Beacon frame
CN104270744B (en) * 2014-09-28 2019-03-15 杭州雄迈信息技术有限公司 The rapid configuration system and method for wireless network
CN105657857B (en) * 2014-11-12 2019-11-19 深圳市腾讯计算机系统有限公司 Wireless network connecting method and device
CN104394577B (en) * 2014-12-09 2019-07-19 上海斐讯数据通信技术有限公司 The wireless network access method of wireless routing device and electronic equipment
CN104602112A (en) * 2014-12-12 2015-05-06 小米科技有限责任公司 Configuration method and device
CN104581647A (en) * 2015-01-30 2015-04-29 青岛海尔智能家电科技有限公司 Network access method and device of intelligent equipment
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CN105682183B (en) * 2016-01-14 2017-06-16 美的集团股份有限公司 The method and apparatus that control home appliance networks
CN107222372B (en) * 2016-03-22 2021-03-23 阿里巴巴集团控股有限公司 Information sending method and equipment
CN106028423A (en) * 2016-05-06 2016-10-12 武汉诚迈科技有限公司 Wireless network distribution method applicable to smart furniture device
CN107371219B (en) 2016-05-13 2020-08-25 华为终端有限公司 WiFi configuration method, WiFi mobile terminal and WiFi equipment
CN106338974B (en) * 2016-08-31 2018-11-23 杭州古北电子科技有限公司 A method of so that WiFi module is adapted to plurality of devices communications protocol
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CN107360021A (en) * 2017-06-16 2017-11-17 上海庆科信息技术有限公司 A kind of LAN distribution method and device
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Address before: Room 106, Building No. 1, 611 Jianghong Road, Changhe Street, Binjiang District, Hangzhou City, Zhejiang Province

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