CN104981000B - A kind of stealthy Wi-Fi hotspot automatic accessing device and method - Google Patents

A kind of stealthy Wi-Fi hotspot automatic accessing device and method Download PDF

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Publication number
CN104981000B
CN104981000B CN201510428206.9A CN201510428206A CN104981000B CN 104981000 B CN104981000 B CN 104981000B CN 201510428206 A CN201510428206 A CN 201510428206A CN 104981000 B CN104981000 B CN 104981000B
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stealthy
network
hotspot
mac address
wifi
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CN104981000A (en
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马骁
范远霞
张媛
杨秋菊
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Shaanxi Normal University
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Shaanxi Normal University
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

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

Abstract

The invention discloses a kind of stealthy Wi-Fi hotspot automatic accessing device and methods, this method hotspot device calculates the SSID and password of network according to own MAC address and system time information first, stealthy WiFi network, and the change network cipher of the period of change according to system time are established by way of not Broadcast SSIDs;Simultaneously, terminal device receives stealthy WiFi broadcast frames, and therefrom extract hotspot device mac address information, with reference to own system temporal information, the SSID and password of stealthy WiFi network are calculated using identical algorithms, it establishes and connects with WiFi network in a manner that active accesses, automatically access purpose so as to fulfill the stealthy function of keeping secret and terminal device of WiFi network, solve the problems such as existing stealthy WiFi network ease for use is low, safety is poor.

Description

A kind of stealthy Wi-Fi hotspot automatic accessing device and method
Technical field
The present invention relates to wireless communication technology fields, and in particular to a kind of stealthy Wi-Fi hotspot automatic accessing device and side Method.
Background technology
Current wireless network is fast-developing, its influence has penetrated into different social sectors, WiFi (Wireless Fidelity, Wireless Fidelity) by itself freely it is convenient the characteristics of by more and more people pro-gaze. Popularizing with WiFi simultaneously, safety problem is increasingly becoming the hot spot of research, the various crack methods for WiFi passwords So that traditional WiFi network cut-in method safety reduces.How to improve WiFi network safety as urgent need to resolve the problem of it One.
In order to improve the confidentiality of WiFi network, the privacy of user is protected, hotspot device uses closing SSID (Service Set Identifier, service set) mode of broadcast establishes WiFi network as a kind of common means.At this point, hot spot The SSID of institute's establishing network is not carried in the Beacon frames of device broadcasts, therefore terminal device will be unable to search the network, need Active access is carried out using the mode of manual addition SSID and password.
Although concealment and the safety of WiFi network can be improved to a certain extent using aforesaid way, add manually Add the mode of WiFi network SSID and password that will cause following problem:1st, user needs direct in clear text manner in advance The SSID and password of network are obtained, reduces the confidentiality of network;2nd, the SSID of network and password cannot be replaced frequently, reduce The safety of network;3rd, user does not know that network whether there is before manual access, belongs to a kind of access of blindness, not only increases The complexity of user's operation, and reduce the ease for use of network.
Invention content
It is above-mentioned existing to overcome the purpose of the present invention is to provide a kind of stealthy Wi-Fi hotspot automatic accessing device and method Technology there are the defects of, the present invention is with MAC (Medium Access Control, medium access control) address of hotspot device For public information, bonding apparatus own system time, distinct device independently calculates the SSID and password of network, realizes WiFi The stealthy function of keeping secret of network and automatically accessing for terminal device.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of stealthy Wi-Fi hotspot automatic accessing device, including:
Determination module:Hotspot device determines whether to perform the stealthy WiFi function that maintains secrecy by determination module;
MAC Address system time read module:For reading hotspot device mac address information and system time information;
Network name generation module:For reading hotspot device MAC Address and performing network name generation method, calculating is established The SSID of WiFi network;
Secret generation module:For reading the MAC Address of hotspot device and system time and performing method for generating cipher code, and Calculate the password for establishing WiFi network;
Network control module:For establishing the stealthy WiFi network that maintains secrecy according to the SSID and password that calculate.
Further, the triggering command for the stealthy WiFi function that maintains secrecy includes the finger that physical button instructs or software interface inputs It enables.
Further, hotspot device is to support the hotspot device of 802.11 serial protocols, and hotspot device includes wireless access Point device has the smart mobile phone for establishing hot spot function, laptop, tablet computer and carry-on WiFi equipment.
Further, network name generation method is specially:Original word is formed using several of hotspot device MAC Address Section, according to the generation of original field and the one-to-one sequence of character number in ASCII character table, using the sequence one by one from ASCII Corresponding character network consisting name is searched in code table.
Further, method for generating cipher code is specially:During with several positions of hotspot device MAC Address and hotspot device system Between several positions collectively constitute original field, according to original field generation with ASCII character table in the one-to-one sequence of character number Row, corresponding character network consisting password is searched using the sequence from ASCII character table one by one.
A kind of stealthy Wi-Fi hotspot automatically accesses method, includes the following steps:
Step 1:The instruction for opening the stealthy WiFi that maintains secrecy is received by hotspot device, and it is automatic to pass through equipment startup support The stealthy WiFi function of secrecy of access;
Step 2:Hotspot device reads itself device mac address and system time;
Step 3:Hotspot device, using the information of MAC Address, calculates network name, and will according to network name generation method The network name is set as the SSID of built WiFi networks;
Step 4:Hotspot device, using the information of MAC Address and system time, calculates network according to method for generating cipher code Access pin, and the password is set as to the access pin of built WiFi networks;
Step 5:The SSID and password set using step 3 and step 4, hotspot device use closing SSID broadcast capabilities Mode establishes the stealthy WiFi networks of secrecy;
Step 6:Terminal device scans all wireless networks when needing to access the stealthy WiFi networks of secrecy, marks Using the WiFi networks for closing SSID broadcast capabilities;
Step 7:Terminal device extracts mac address information from the wireless network broadcast frame of label;
Step 8:Network name generation method of the terminal device according to used in hotspot device in step 3, using from broadcast frame The mac address information of extraction calculates the SSID of network;
Step 9:Method for generating cipher code of the terminal device according to used in hotspot device in step 4, carries using from broadcast frame The MAC Address taken with reference to own system temporal information, calculates wireless network access pin;
Step 10:The SSID and wireless network access pin that terminal device is calculated using step 8 and step 9 are using master Dynamic access way realizes the access to stealthy WiFi networks.
Further, network name generation method is specially in step 3:Utilize several compositions of hotspot device MAC Address Original field, according to original field generation with ASCII character table in the one-to-one sequence of character number, using the sequence one by one from Corresponding character network consisting name is searched in ASCII character table.
Further, method for generating cipher code is specially:Utilize several positions of hotspot device MAC Address and hotspot device system Several positions of time collectively constitute original field, are generated according to original field one-to-one with character number in ASCII character table Sequence searches corresponding character network consisting password using the sequence from ASCII character table one by one.
Further, method for generating cipher code periodically performs.
Further, method for generating cipher code supports the cipher mode in 802.11 standards.
Compared with prior art, the present invention has technique effect beneficial below:
The advantages of apparatus of the present invention is, first, the network name and password of WiFi network, while basis can be automatically generated The network name and password of generation establish stealthy WiFi network, and terminal device is supported to automatically access automatically, solve existing heat Point device needs manual setting network name and password when establishing stealthy WiFi network, and needs to lead to the information with clear-text way The problem of knowing user increases ease for use and the safety of equipment;Second, network cipher can be periodically changed automatically, solved The problem of existing hotspot device of having determined needs manual modification password improves the confidentiality of network.
The method have the advantages that first, solve the problems, such as automatically accessing for stealthy WiFi:Current stealthy WiFi's Cut-in method is to be manually entered Wi-Fi hotspot title and password, and this method needs user to know WiFi in clear text manner in advance Hotspot name and password, the present invention automatically access method by design a kind of stealthy WiFi so that hotspot device and terminal are set The standby SSID and password for independently calculating WiFi network, user without awareness network information, realize it is transparent to the user from Dynamic access, improves the convenience that stealthy WiFi network uses.Second, improve the safety of network:The present invention uses close Hotspot device MAC Address is combined by code generating method with system time, according to the variation of system time, periodically changes net Network password compared with traditional fixed password mode, effectively raises the safety of network.Meanwhile the password update period can According to equipment timing tracking accuracy each in network and safety grades requirement flexibly selection, to increase the flexibility of method.
Further, to the compatibility of existing 802.11 serial protocols:The present invention complies fully with existing association during the work time Flow is discussed, does not need to add in any additional information exchange between hotspot device and terminal device, distinct device is respectively independent Corresponding method is run, therefore existing 802.11 serial protocols can be compatible with, the scope of application of method is increased, improves invention Practicability.
Description of the drawings
The stealthy Wi-Fi hotspot that Fig. 1 is the present invention automatically accesses method work flow diagram;
Fig. 2 is the structure diagram of the stealthy Wi-Fi hotspot automatic accessing device of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
Referring to Fig. 1, a kind of stealthy Wi-Fi hotspot of secrecy automatically accesses method, applied to 802.11 sequence of communications agreements of support Hotspot device and terminal device, include the following steps:
(1) hotspot device receives the instruction for opening the stealthy WiFi that maintains secrecy, which starts the secrecy for supporting to automatically access Stealthy WiFi function;
(2) hotspot device reads itself device mac address and system time;
(3) hotspot device is according to network name generation method, using the information of MAC Address, calculates network name, and by the value The SSID of built WiFi networks is set as, network name generation method is specially:Utilize several positions of hotspot device MAC Address Form original field, according to original field generation with ASCII character table in the one-to-one sequence of character number, using the sequence by Corresponding character network consisting name is searched in a table from ASCII character;Information due to the use of the MAC Address of hotspot device is used as kind Son calculates deterministic SSID according to unalterable rules, i.e., after MAC Address and computation rule determine, the SSID calculated is true Definite value, there is no randomnesss;
(4) hotspot device, using the information of MAC Address and system time, calculates network and connects according to method for generating cipher code Enter password, and the value is set as to the access pin of built WiFi networks;Method for generating cipher code is specially:It is set using hot spot Several positions of standby MAC Address and several positions of hotspot device system time collectively constitute original field, are generated according to original field With the one-to-one sequence of character number in ASCII character table, corresponding character is searched from ASCII character table one by one using the sequence Network consisting password.Due to the use of mac address information and system time information as seed, calculated according to unalterable rules determining Property password, i.e., after MAC Address, system time and computation rule determine, the password that calculates is to determine value, and there is no random Property;And method for generating cipher code periodically performs, and according to the variation of system time, the password calculated can also become therewith Change, the cryptosync of WiFi network is updated, so as to increase the confidentiality of WiFi network, the week that method for generating cipher code performs Phase can be according to hotspot device and terminal device timing tracking accuracy and security classification requirement flexibly selection;And method for generating cipher code Support WAP in 802.11 standard of existing standard WAP2 cipher modes, the password code word size of method for generating cipher code generation With rule need to meet WAP WAP2 cipher modes requirement;
(5) SSID and password set using step (3) and step (4), hotspot device use closing SSID broadcast capabilities Mode establish the stealthy WiFi networks of secrecy;
(6) terminal device is all wireless according to existing standard scanning when needing to access the stealthy WiFi networks of secrecy Network, label is using the WiFi networks for closing SSID broadcast capabilities;
(7) terminal device extraction mac address information (MAC from the wireless network broadcast frame (i.e. Beacon frames) of label Address is the MAC Address for the hotspot device for establishing the wireless network);
(8) terminal device is according to network name generation method (identical with the network name generation method of hotspot device), using from The mac address information extracted in broadcast frame calculates network name SSID;Due to hotspot device and terminal device be respectively adopted it is identical Network name generation method, during so as to ensure that two independent equipment are calculated according to identical MAC Address and temporal information, Identical SSID can be obtained respectively;
(9) terminal device is according to method for generating cipher code (identical with the method for generating cipher code of hotspot device), using from broadcast The MAC Address extracted in frame with reference to own system temporal information, calculates wireless network access pin;Due to hotspot device and Identical method for generating cipher code is respectively adopted in terminal device, so as to ensure two independent equipment according to identical MAC Address and When temporal information is calculated, identical password can be obtained respectively;
(10) SSID and password that terminal device is calculated using step (8) and step (9) use active access way Realize the access to stealthy WiFi networks.
Referring to Fig. 2, a kind of stealthy hot spot device of secrecy for supporting to automatically access, including:
(1) determination module determines a need for performing the stealthy WiFi function that maintains secrecy, the triggering of the function for hotspot device Instruction includes:Physical button instructs or the instruction of software interface input;Wherein hotspot device is to support 802.11 serial protocols Hotspot device, including access point apparatus (Access Point), have the smart mobile phone for establishing hot spot function, laptop, Tablet computer and carry-on WiFi equipment.
(2) network name generation module for performing network name generation method, reads hotspot device MAC Address, and calculate institute The SSID of WiFi network is established, network name generation method is specially:Original word is formed using several of hotspot device MAC Address Section, according to the generation of original field and the one-to-one sequence of character number in ASCII character table, using the sequence one by one from ASCII Corresponding character network consisting name is searched in code table;
(3) secret generation module for performing method for generating cipher code, reads the MAC Address and system time of hotspot device, And the password of established WiFi network is calculated, method for generating cipher code is specially:Utilize several positions of hotspot device MAC Address and heat Several positions of point device system time collectively constitute original field, according to the generation of original field and character number in ASCII character table One-to-one sequence searches corresponding character network consisting password using the sequence from ASCII character table one by one;
(4) network control module for establishing the stealthy WiFi network that maintains secrecy, is calculated according to above-mentioned (2) (3) module SSID and password, establish WiFi network by way of not Broadcast SSIDs.
The present invention is described in detail with reference to embodiment:
A kind of stealthy WiFi network hot spot of secrecy automatically accesses method, specially:
Step 1:Hotspot device receives the instruction for opening the stealthy WiFi that maintains secrecy, and it is stealthy to start the secrecy for supporting to automatically access WiFi function;
Step 2:Hotspot device reads itself WiFi port hardware device mac address, it is assumed that the MAC Address read is 74-D4-35-96-62-A3;
Step 3:Hotspot device reads itself device systems time, it is assumed that the time read is 10 days 15 June in 2015 When 23 divide, then be recorded as 20-15-06-10-15-23;
Step 4:Hotspot device performs network name generation method, it is assumed that method rule is uses 5 fields before MAC Address 74-D4-35-96-62 carries out 26 operation of mould respectively, and result is the 12-4-1-20-20 of decimal representation, then each field point Not plus 65, result is the 77-69-66-85-85 of decimal representation, then takes the SSID of corresponding ASCII value composition WiFi network, For MEBUU;
Step 5:Hotspot device performs method for generating cipher code, it is assumed that method rule is to be combined using 3 fields after MAC Address Preceding 5 fields of time, i.e. 96-62-A3-20-15-06-10-15 carry out 26 operation of mould respectively, and result is decimal representation 20-20-7-6-21-6-16-21, then each field add 65 respectively, result is the 85-85-72-71-86- of decimal representation 71-81-86, then the password of corresponding ASCII value composition WiFi network is taken, it is UUHGVGQV.It is calculated by this rule close Code is since time lowest order gets hour, then the password of corresponding generation will change once per hour;
Step 6:The side that hotspot device passes through not Broadcast SSIDs according to the SSID and password calculated in step 4 and step 5 Formula establishes WiFi networks;
Step 7:Terminal device opens stealthy WiFi network and automatically accesses function, starts the stealthy WiFi nets around scanning Network;
Step 8:Terminal device receives the broadcast Beacon frames for the WiFi networks established in step 6, therefrom extracts Go out the MAC Address 74-D4-35-96-62-A3 of hotspot device;Terminal device reads itself device systems time simultaneously, it is assumed that eventually End equipment and hotspot device basic synchronization, but there are limited synchronous error, then the time read is 10 days 15 June in 2015 When 25 divide, then be recorded as 20-15-06-10-15-25;
Step 9:Terminal device performs network name generation method, it is assumed that method rule is identical with the rule in step 4, then eventually The SSID that end equipment is calculated is MEBUU;
Step 10:Terminal device performs method for generating cipher code, it is assumed that and method rule is identical with the rule in step 5, due to Method rule when not in use between in minute field, so the password that terminal device is calculated is identical in step 5, be UUHGVGQV;
Step 11:The SSID and password that terminal device is calculated according to step 9 and step 10, using active connection mode with Hotspot device carries out link setup, realizes that WiFi network automatically accesses.
A kind of device that stealthy WiFi is automatically accessed that maintains secrecy is set applied to the access point of 802.11 sequence of communications agreements is supported Standby, described device includes:
Determination module opens mould opening device in the block, by the stealthy WiFi function of the secrecy of starting device, while will set Standby corresponding registers are positioned to allow for the stealthy function that maintains secrecy;
MAC Address system time read module, read device mac address information, and periodic reading system time believe Breath, while associated databases field is written into the two information;
Network name generation module, reads mac address information from database, is calculated according to network name generation method SSID, and be written in network control register corresponding position;
Name of code generation module, periodically reads system time information from database, according to method for generating cipher code meter Network cipher is calculated, and is written in network control register corresponding position;
Network control module periodically reads SSID and password from network control register, passes through not Broadcast SSIDs Mode establishes WiFi networks, and the password for the institute's establishing network that timely updates in password change.
It should be noted that modules and unit described in above device embodiment are that logically function divides , but above-mentioned division is not limited to, as long as corresponding function can be realized;The specific name of each unit is for phase It mutually distinguishes, the protection domain being not intended to restrict the invention.
The device can be widely applied to include wireless access point device (Access Point), has and establishes hot spot work( Smart mobile phone, laptop, tablet computer and the carry-on WiFi equipment of energy.

Claims (5)

1. a kind of stealthy Wi-Fi hotspot automatically accesses method, which is characterized in that includes the following steps:
Step 1:The instruction for opening the stealthy WiFi that maintains secrecy is received by hotspot device, and passes through equipment startup and supports to automatically access The stealthy WiFi function of secrecy;
Step 2:Hotspot device reads itself device mac address and system time;
Step 3:Hotspot device is according to network name generation method, using the information of MAC Address, calculates network name, and by the net Network name is set as the SSID of built WiFi networks;
Step 4:Hotspot device, using the information of MAC Address and system time, calculates network insertion according to method for generating cipher code Password, and the password is set as to the access pin of built WiFi networks;
Step 5:The SSID and password set using step 3 and step 4, hotspot device use the mode for closing SSID broadcast capabilities Establish the stealthy WiFi networks that maintain secrecy;
Step 6:Terminal device scans all wireless networks when needing to access the stealthy WiFi networks of secrecy, and label uses Close the WiFi networks of SSID broadcast capabilities;
Step 7:Terminal device extracts mac address information from the wireless network broadcast frame of label;
Step 8:Network name generation method of the terminal device according to used in hotspot device in step 3, is extracted using from broadcast frame Mac address information, calculate the SSID of network;
Step 9:Method for generating cipher code of the terminal device according to used in hotspot device in step 4, utilizes what is extracted from broadcast frame MAC Address with reference to own system temporal information, calculates wireless network access pin;
Step 10:The SSID and wireless network access pin that terminal device is calculated using step 8 and step 9 are connect using active Enter mode and realize access to stealthy WiFi networks.
2. a kind of stealthy Wi-Fi hotspot according to claim 1 automatically accesses method, which is characterized in that network in step 3 Name generation method be specially:Using several of the hotspot device MAC Address original fields of composition, according to the generation of original field with The one-to-one sequence of character number in ASCII character table searches corresponding character group from ASCII character table one by one using the sequence Into network name.
3. a kind of stealthy Wi-Fi hotspot according to claim 1 automatically accesses method, which is characterized in that method for generating cipher code Specially:Original field is collectively constituted using several positions of hotspot device MAC Address and several positions of hotspot device system time, According to the generation of original field and the one-to-one sequence of character number in ASCII character table, using the sequence one by one from ASCII character table It is middle to search corresponding character network consisting password.
4. a kind of stealthy Wi-Fi hotspot according to claim 3 automatically accesses method, which is characterized in that method for generating cipher code Periodically perform.
5. a kind of stealthy Wi-Fi hotspot according to claim 3 automatically accesses method, which is characterized in that method for generating cipher code Support the cipher mode in 802.11 standards.
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