CN102404725B - Method for safely building WiFi connection by SSID in application program - Google Patents
Method for safely building WiFi connection by SSID in application program Download PDFInfo
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- CN102404725B CN102404725B CN201110349101.6A CN201110349101A CN102404725B CN 102404725 B CN102404725 B CN 102404725B CN 201110349101 A CN201110349101 A CN 201110349101A CN 102404725 B CN102404725 B CN 102404725B
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Abstract
The invention belongs to the transmission technical field of wireless network and specifically relates to a method for safely building WiFi connection by SSID in application program. The method uses the open API of mobile operation system, controls and manages WiFi module by program and configures SSID to automatically build WiFi connection by the application program, and exchanges data in safe manner. The method is characterized in that SSID comprises program identifiers and SSID connecting key; the SSID connecting key is encrypted by encrypting program and a process (authorization from user should be acquired after automatically building the WiFi connection, or else, the connection will be removed) is confirmed by the connection to improve the safety.
Description
Technical field
The invention belongs to wireless network transmission technology field, be specifically related to a kind of SSID that utilizes and set up safely the method that WiFi connects in application program.
Background technology
Be accompanied by the development of hardware technology, the utility ratio of WiFi in mobile terminal improves constantly, popularizing along with mobile terminal (panel computer, smart mobile phone, electronic reader etc.) simultaneously, rely between mobile terminal the application of information exchange also increasing, the such as exchange of electronic business card etc. between the exchange of multimedia messages, mobile terminal between mobile terminal.
Exchanges data based on WiFi between present stage mobile terminal roughly has following several form:
1, be jointly connected in a WLAN (wireless local area network) by wireless routing device, which needs each mobile terminal to have authority to be connected into this mobile LAN.If these mobile terminals do not have authority or there is no such a wireless routing device, which is by inapplicable.
2, a mobile terminal is opened ap mode, and other mobile terminals form the network that can communicate by letter by this AP.The advantage of this mode is not need to rely on wireless routing device.But need to have the mobile terminal of supporting AP function, and have the following disadvantages, if AP is arranged to without cryptoguard, exist by the risk that other people arbitrarily connect, the method also needs the user of other mobile terminals to find SSID, and password etc. is set.
No matter the common feature of above-mentioned which kind of mode is the not responsible WiFi establishment of connection of application layer, and management WiFi connected mode, state etc.For the content exchange process in following application scenarios, be all difficult to reach the requirements such as good user's experience and fail safe:
If meeting for the first time, several mobile phone users need to exchange application layer message, and user wants to exchange by the mode of WiFi, first needs to open WiFi, and a user need to be arranged to ap mode by WiFi, in addition need to set SSID and password, then password is notified to all users.After all users connect, application program just can be carried out the transmission of content.
Therefore, in traditional approach, share the operation of content user in mobile terminal by WiFi more loaded down with trivial details, and have security risk.
Summary of the invention
The object of the present invention is to provide a kind of simple and convenient, safe and reliable method of setting up WiFi connection.
The method of setting up WiFi connection provided by the invention, utilize the open API of Mobile operating system, pass through to set the SSID value of WiFi at application layer software, realize automatic program identification, set up network connection, transmission application layer data, and ensure the open-destination that network only exchanges needs, other mobile terminals that do not move same software cannot obtain connection authority.Therefore claim the present invention to utilize SSID to set up safely the method that WiFi connects in application program.
The method of setting up WiFi connection provided by the invention, its application layer software is in the time of the SSID of configuration AP, and other information that WiFi connected to key information and application layer needs are attached in SSID.
In the inventive method, SSID at least comprises program identification and is connected key (WiFi connects key) with SSID, and program identification is connected key with WiFi can be by application layer self-defining, but requires to ensure that same application uses same program identification.
In the inventive method, WiFi connects key and presents with encrypted test mode, and other additional informations of program identification and application layer can be both can be expressly also that ciphertext presents.
In the inventive method, the key that encryption WiFi connection key needs is by application maintenance, and regular more new key of connection server.
Application program in the present invention has following two kinds of operational modes:
Server mode, it is ap mode that the mobile terminal in server mode need to configure WiFi, and SSID is arranged to specific form.This form at least comprises program identification and is connected key with WiFi.Wherein program identification refers to produced by application program a kind of for identifying the information of this application program; WiFi connect key refer to server mode mobile terminal produce, connect the needed key of the corresponding AP of this SSID, also claim SSID connect key.
Client mode, the mobile terminal in client mode is non-ap mode without configuration WiFi, and the SSID information of AP in scanning surrounding environment is analyzed after acquisition SSID information, and the program identification information of resolving is wherein connected key with SSID.Then the mobile terminal of client mode is according to the key that obtains SSID and parse, and request connects corresponding SSID.
The present invention comprises SSID configuration, SSID scanning, connects the processes such as confirmation, exchanges data in application.
SSID setting up procedure:
Before connection is set up, first mobile phone users runtime server pattern in application program, now application program ensures the operation of WiFi module, and is arranged to ap mode.Before the SSID of this mobile terminal of configuration, application program generates the key that a SSID connects, and the key information after the application program identification in the program of being stored in (can be both can be expressly also ciphertext) and encryption is kept in SSID.
SSID scanning process:
After the mobile terminal of the pattern in client has completed SSID and has arranged, start scanning SSID around, the ssid list that end of scan post analysis obtains, and each SSID is resolved, if do not find the SSID that comprises program identifier, continue to rescan after dormancy certain hour.If found the SSID that comprises program identifier, the SSID obtaining is resolved, therefrom extract application program identification is connected key and application layer needs other information with SSID etc., and SSID is connected to key be decrypted with being stored in key in program, obtain the plaintext that corresponding SSID connects key.
Connect confirmation process:
After client mode mobile terminal has obtained and is connected key with SSID No. SSID, just can set up WiFi and connect.After WiFi connection has been set up, client mode mobile device sends a request that connects confirmation, whether server mode mobile terminal can prompting user allow to connect after receiving this request, only has to have sent to connect and confirms that the client mode mobile terminal of asking and obtain user to allow just has authority to carry out exchanges data.
Data exchange process:
After having set up WLAN (wireless local area network) by the way, many mobile terminals can carry out application layer data exchange by server mode mobile terminal.Broadcast by IP layer or other modes obtain the application layer data exchange that can realize point-to-point or broadcast type behind the IP address of other mobile terminals in WLAN (wireless local area network).
Brief description of the drawings
Fig. 1 server mode mobile terminal WiFi configuration flow.
Fig. 2 client mode mobile terminal WiFi configuration flow.
Fig. 3 client mode mobile scanning terminal program flow diagram.Client mobile scanning terminal SSID therefrom extract the program flow diagram of SSID, address name information and encrypted message has around been described.
Fig. 4 WiFi connects foundation and connects confirmation procedure chart.Describe client mode terminal and connected, connected confirmation process from initiating WiFi.
Embodiment
One, a side user opens the application program on mobile terminal, and is arranged to server mode, and now this user side application program is carried out following operation (as shown in Figure 1):
A, generate WiFi and connect key, and be encrypted to ciphertext with the encipheror in software;
The key of b, extraction procedure mark and ciphertext form forms No. SSID;
Whether c, detection system WiFi open, and open WiFi module if do not open;
Whether d, detection system WiFi in AP mode of operation, if not in ap mode, WiFi is arranged to ap mode, and SSID is set is No. SSID in step b.
Two, the user of client mode handheld device opens client mode, and now corresponding application program for mobile terminal is carried out following operation (as shown in Figure 2):
Whether a detection system WiFi opens, if do not open, opens WiFi module;
B detection system WiFi, whether in AP mode of operation, if in ap mode, is arranged to WiFi non-ap mode.
Three, client is setting the SSID information starting after WiFi information around scanning.Its process following (shown in Fig. 3):
A, start to scan SSID, each scanning obtains the list of a SSID;
B, traversal ssid list, once judge each SSID, if contain program identification, preserves this SSID;
Do not find any SSID that comprises program identification if c once travels through, rescan SSID until overtime end sweep phase;
Have if d once travels through the SSID that comprises program identifier, application layer software extracts the key of corresponding SSID, and is decrypted into expressly, preserves SSID simultaneously and is connected key with the SSID of plaintext form.
Four, when client mode mobile terminal has obtained SSID and SSID key, just can connect, its process following (shown in Fig. 4):
A, client mode mobile terminal administration software extract the connection that SSID corresponding to this user and password are set up WiFi;
B, when WiFi connect has set up after, client mode mobile terminal application layer software send to one connect confirmation request;
C, receive to connect to confirm, after request, whether prompting user agrees to connect when server mode mobile terminal, only had to have sent connection request and obtained the mobile terminal that user agrees to and could set up the WiFi moving with this server mode and be connected.Otherwise the WiFi having set up connects and will be disconnected.
Claims (5)
1. in application program, utilize SSID to set up safely the method that WiFi connects, it is characterized in that:
Pass through to set the SSID of WiFi at application layer software, realize automatic program identification, set up network connection, transmission application layer data, and ensure the open-destination that network only exchanges needs, other mobile terminals that do not move same software cannot obtain connection authority; Application layer software is in the time of the SSID of configuration AP, and other information that WiFi connected to key information and application layer needs are attached in SSID; SSID at least comprises program identification and is connected key with WiFi, and program identification is connected key by application layer self-defining with WiFi, and same application uses same program identification; WiFi connects key and presents with encrypted test mode, and other additional informations of program identification and application layer are that plaintext or ciphertext present; Application program has following two kinds of operational modes: server mode and client mode; The method detailed process of setting up WiFi connection comprises SSID configuration, SSID scanning, connects and confirm and exchanges data:
SSID layoutprocedure: before connection is set up, first mobile phone users runtime server pattern in application program, now application program ensures the operation of WiFi module, and is arranged to ap mode; Before the SSID of this mobile terminal of configuration, application program generates a WiFi and connects key, and the key information after the application program identification in the program of being stored in and encryption is kept in SSID;
SSID scanning process: after the mobile terminal of the pattern in client has completed SSID and arranges, start scanning SSID around, the ssid list that end of scan post analysis obtains, and each SSID is resolved, if do not find the SSID that comprises program identifier, continue to rescan after dormancy certain hour; If found the SSID that comprises program identifier, the SSID obtaining is resolved, therefrom extract application program identification is connected key and application layer needs other information with WiFi, and with the key after the encryption being stored in program, WiFi is connected to key and be decrypted, obtain the plaintext that corresponding WiFi connects key;
Connect confirmation process: after client mode mobile terminal has obtained SSID and is connected key with WiFi, set up WiFi connection; After WiFi connection has been set up, client mode mobile terminal sends a request that connects confirmation, whether server mode mobile terminal can prompting user allow to connect after receiving this request, only has to have sent to connect and confirms that the client mode mobile terminal of asking and obtain user to allow just has authority to carry out exchanges data;
Data exchange process: set up by the way after WLAN (wireless local area network) when many mobile terminals, carried out application layer data exchange by server mode mobile terminal; Broadcast or other modes by IP layer obtain behind the IP address of other mobile terminals in WLAN (wireless local area network), realize the application layer data exchange of point-to-point or broadcast type.
2. the SSID that utilizes in application program according to claim 1 sets up safely the method that WiFi connects, it is characterized in that: when a side user opens the application program on mobile terminal, and be arranged to server mode, now the application program on this customer mobile terminal is carried out following operation:
A, generate WiFi and connect key, and be encrypted to ciphertext with the encipheror in software;
B, extraction procedure mark are connected key and form SSID with the WiFi of ciphertext form;
Whether c, detection system WiFi open, and open WiFi module if do not open;
Whether d, detection system WiFi in ap mode, if not in ap mode, WiFi is arranged to ap mode, and SSID is set is the SSID in step b.
3. the SSID that utilizes in application program according to claim 2 sets up safely the method that WiFi connects, and it is characterized in that: when the user of client mode mobile terminal opens client mode, now corresponding application program for mobile terminal is carried out following operation:
Whether a, detection system WiFi open, if do not open, open WiFi module;
B, detection system WiFi, whether in ap mode, if in ap mode, are arranged to WiFi non-ap mode.
4. the SSID that utilizes in application program according to claim 3 sets up safely the method that WiFi connects, and it is characterized in that: client mobile terminal is setting the SSID information starting after WiFi information around scanning, and its process is as follows:
A, start to scan SSID, each scanning obtains the list of a SSID;
B, traversal ssid list, once judge each SSID, if contain program identification, preserves this SSID;
Do not find any SSID that comprises program identification if c once travels through, rescan SSID until overtime end sweep phase;
Exist the SSID that comprises program identifier, application layer software to extract corresponding WiFi connection key if d once travels through, and be decrypted into expressly, preserve SSID simultaneously and be connected key with the WiFi of plaintext form.
5. the SSID that utilizes in application program according to claim 4 sets up safely the method that WiFi connects, and it is characterized in that: be connected key when client mode mobile terminal has obtained SSID with WiFi, just connect, its process is as follows:
A, client mode mobile terminal administration software extract SSID corresponding to this user and are connected Key Establishing WiFi connection with WiFi;
B, when WiFi connect has set up after, client mode mobile terminal application layer software send to one connect confirmation request;
C, receive to connect to confirm, after request, whether prompting user agrees to connect when server mode mobile terminal, only had to have sent connection request and obtained the mobile terminal that user agrees to and could set up with the WiFi of this server mode mobile terminal and be connected; Otherwise the WiFi having set up connects and will be disconnected.
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| CN201110349101.6A CN102404725B (en) | 2011-11-08 | 2011-11-08 | Method for safely building WiFi connection by SSID in application program |
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| CN201110349101.6A CN102404725B (en) | 2011-11-08 | 2011-11-08 | Method for safely building WiFi connection by SSID in application program |
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| CN102404725A CN102404725A (en) | 2012-04-04 |
| CN102404725B true CN102404725B (en) | 2014-07-09 |
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