CN107820237B - Data transmission method and device under WIFI network - Google Patents

Data transmission method and device under WIFI network Download PDF

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Publication number
CN107820237B
CN107820237B CN201610820772.9A CN201610820772A CN107820237B CN 107820237 B CN107820237 B CN 107820237B CN 201610820772 A CN201610820772 A CN 201610820772A CN 107820237 B CN107820237 B CN 107820237B
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information
wifi network
currently accessed
content
mobile terminal
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CN107820237A (en
Inventor
岳莉
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ZTE Corp
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ZTE Corp
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Priority to CN201610820772.9A priority Critical patent/CN107820237B/en
Priority to PCT/CN2017/081015 priority patent/WO2018045755A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • 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
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/67—Risk-dependent, e.g. selecting a security level depending on risk profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/18—Network architectures or network communication protocols for network security using different networks or channels, e.g. using out of band channels

Abstract

The invention discloses a data transmission method and a data transmission device under a WIFI network, which are applied to a mobile terminal, wherein the method comprises the following steps: detecting the current environment information of the mobile terminal; according to the environment information, determining credibility information when the mobile terminal transmits information through the currently accessed WIFI network; when the credibility information reaches a preset condition, detecting the content of information data needing to be transmitted through the currently accessed WIFI network; and if the content of the information data which needs to be transmitted through the currently accessed WIFI network accords with the preset information content, switching the currently accessed WIFI network to a network of a terminal operator to transmit the information data. According to the invention, when the mobile terminal is connected to the unsafe WIFI network, the leakage of personal information data of the user can be effectively avoided.

Description

Data transmission method and device under WIFI network
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus in a WIFI network.
Background
At present, under some unsafe WIFI networks in public places, the protection of sensitive information such as user account passwords and the like is realized by reminding a user not to apply the sensitive information under the unsafe WIFI networks so as to prevent the important personal information from being stolen by others. The information protection mode requires that a user does not access the network through WIFI preferably in a public environment, so that personal information is prevented from being leaked, and the user loses application opportunities possibly connected with other networks.
In some applications, user data may also be protected through detection of an Internet Protocol (IP). If the IP of the user is changed, the user is reminded to log in again so as to ensure the data security of the user. However, if the user is in the insecure WIFI network, the application program detects that re-login is required, which may cause complete leakage of user data.
Disclosure of Invention
In order to solve the technical problem, the invention provides a data transmission method and a data transmission device under a WIFI network, which solve the problem that information data is possibly leaked when the information data needs to be transmitted through the WIFI network.
In order to achieve the above object, an embodiment of the present invention provides a data transmission method in a WIFI network, which is applied to a mobile terminal, and the method includes:
detecting the current environment information of the mobile terminal;
according to the environment information, determining credibility information when the mobile terminal transmits information through the currently accessed WIFI network;
when the credibility information reaches a preset condition, detecting the content of information data needing to be transmitted through the currently accessed WIFI network;
and if the content of the information data which needs to be transmitted through the currently accessed WIFI network accords with the preset information content, switching the currently accessed WIFI network to a network of a terminal operator to transmit the information data.
Preferably, the step of detecting the current environment information of the mobile terminal includes:
analyzing a service set identifier of a currently accessed WIFI network to obtain first analysis information;
acquiring a first keyword in the first analysis information;
and determining the current environment information of the mobile terminal according to the first keyword.
Preferably, the step of detecting the current environment information of the mobile terminal includes:
analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;
acquiring a second keyword in each second analysis message;
and determining the current environment information of the mobile terminal according to the second keyword.
Preferably, the step of determining, according to the environment information, reliability information when the mobile terminal transmits information through a currently accessed WIFI network includes:
matching the environment information with a reliability matching table of preset environment information to obtain a first reliability value of the environment information;
determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period;
and determining the credibility information of the mobile terminal when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value.
Preferably, after the step of determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network, the method further includes:
and when the credibility value in the credibility information is smaller than a preset credibility value, determining that the credibility information reaches a preset condition.
Preferably, the step of detecting the content of the information data needing to be transmitted through the currently accessed WIFI network includes:
acquiring the content of information data to be transmitted through the currently accessed WIFI network;
matching the information data with predetermined information content, and when the matching is successful, determining that the content of the information data needing to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;
the preset information content comprises user personal information, user login information and bank account information.
Preferably, after the step of switching the currently accessed WIFI network to the network of the terminal operator for information data transmission, the method further includes:
and switching the network of the currently connected terminal operator to the previously accessed WIFI network.
The embodiment of the invention also provides a data transmission device under the WIFI network, which is applied to a mobile terminal, and the device comprises:
the identification module is used for detecting the current environment information of the mobile terminal;
the processing module is used for determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network according to the environment information;
the detection module is used for detecting the content of information data which needs to be transmitted through the currently accessed WIFI network when the credibility information reaches a preset condition;
and the transmission module is used for switching the currently accessed WIFI network to a network of a terminal operator to transmit the information data if the content of the information data transmitted through the currently accessed WIFI network meets the preset information content.
Preferably, the identification module comprises:
the first analysis unit is used for analyzing the service set identifier of the currently accessed WIFI network to obtain first analysis information;
a first obtaining unit, configured to obtain a first keyword in the first analysis information;
and the first identification unit is used for determining the current environment information of the mobile terminal according to the first keyword.
Preferably, the identification module comprises:
the second analysis unit is used for analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;
a second obtaining unit, configured to obtain a second keyword in each piece of second parsing information;
and the second identification unit is used for determining the current environment information of the mobile terminal according to the second keyword.
Preferably, the processing module comprises:
the first matching unit is used for matching the environment information with a reliability matching table of preset environment information to obtain a first reliability value of the environment information;
the first processing unit is used for determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period;
and the second processing unit is used for determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value.
Preferably, the apparatus further comprises:
and the judging module is used for determining that the credibility information reaches a preset condition when the credibility value in the credibility information is smaller than a preset credibility value.
Preferably, the detection module comprises:
the third acquisition unit is used for acquiring the content of the information data which needs to be transmitted through the currently accessed WIFI network;
the second matching unit is used for matching the information data with the preset information content, and when the matching is successful, the content of the information data needing to be transmitted through the currently accessed WIFI network is determined to accord with the preset information content;
the preset information content comprises user personal information, user login information and bank account information.
Preferably, the apparatus further comprises:
and the switching module is used for switching the network of the currently connected terminal operator to the previously accessed WIFI network.
The embodiment of the invention has the beneficial effects that:
in the scheme, the current environment information of the mobile terminal is detected, and the corresponding reliability judgment is made on the current environment information. And when the reliability is lower than the preset reliability value, further detecting whether the information data needing to be transmitted currently is sensitive information. And if the information is sensitive information, switching the currently accessed WIFI network into the network of the operator to transmit the information data. Thereby, the protection of personal information in an untrusted or complex WIFI environment is ensured. After the transmission of the information data is completed, the WIFI network connection is switched to be the previous WIFI network connection, the WIFI network connection can be quickly switched after the transmission of the information data is completed, and the operation of the WIFI network connection is not required to be carried out again.
Drawings
Fig. 1 is a flowchart illustrating a data transmission method in a WIFI network according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for detecting environment information of a mobile terminal according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating another method for detecting environment information of a mobile terminal according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an embodiment of determining reliability information when information is transmitted in a currently accessed WIFI network;
fig. 5 is a flowchart illustrating an embodiment of the present invention for detecting a content of information data that needs to be transmitted through a currently accessed WIFI network;
fig. 6 is a block diagram illustrating a data transmission apparatus in a WIFI network according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a data transmission method under a WIFI network, which is applied to a mobile terminal, and the method includes:
s101, detecting the current environment information of the mobile terminal;
in this embodiment, the environment information includes information of a current geographical location of the mobile terminal and/or information of a current access network state of the mobile terminal. The geographical location information includes a shopping mall environment, a residential site, an office site, and the like. The network state information includes the network state of the access operator and the network state of the access non-operator.
S102, determining credibility information when the mobile terminal transmits information through the currently accessed WIFI network according to the environment information;
in this embodiment, the reliability information may be determined according to a reliability value of the preset geographic location information, the connection frequency of the currently accessed WIFI network within a preset time period, the network state information, and the like.
S103, when the credibility information reaches a preset condition, detecting the content of information data needing to be transmitted through the currently accessed WIFI network;
and S104, if the content of the information data transmitted through the currently accessed WIFI network is in accordance with the preset information content, switching the currently accessed WIFI network to a network of a terminal operator to transmit the information data.
In this embodiment, when it is detected that the content of the information data that needs to be transmitted currently includes the predetermined information content, the currently accessed WIFI network is switched to the network of the terminal operator to transmit the information data. Wherein the predetermined information content comprises: the bank account number, the identification number, the contact way and other user names and passwords of the user. According to the scheme, when the credibility value of the currently accessed WIFI network is lower than the preset credibility value, leakage of personal information data of a user is avoided.
Further, as shown in fig. 2, the step of detecting the current environment information of the mobile terminal includes:
s201, analyzing a service set identifier of a currently accessed WIFI network to obtain first analysis information;
in this embodiment, a manner of analyzing a service set identifier of a WIFI network is described by taking a shopping mall environment as an example. For example, for the service set identifier containing the Chinese name, a way of directly extracting Chinese keywords is adopted. For the service set identifier named by the store name, the store name can be directly extracted as the first keyword. The service set identifier containing the letter name can be analyzed according to the mode that the letters contrast the Chinese Pinyin, the Chinese Pinyin in the service set identifier is translated into the Chinese name, and the first keyword is obtained. For the service set identifier containing the english name, the name of the store represented by the english name can be directly used as the first keyword.
S202, acquiring a first keyword in the first analysis information;
in this embodiment, the first keyword is a keyword that represents environment information in which the mobile terminal is currently located. For example: and analyzing to obtain first analysis information which is the name of a certain clothing brand, and extracting the clothing brand name as a first keyword. And determining that the environment information of the current mobile terminal is the market environment according to the first keyword.
S203, determining the current environment information of the mobile terminal according to the first keyword.
In this embodiment, the manner of determining the current environment information of the mobile terminal may be to match the first keyword with a determination table of preset environment information, and use the environment information in the determination table of preset environment information corresponding to the first keyword as the current environment information of the mobile terminal.
Further, as shown in fig. 3, the step of detecting the current environment information of the mobile terminal includes:
s301, analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;
s302, acquiring a second keyword in each second analysis message;
s303, determining the current environment information of the mobile terminal according to the second keyword.
In this embodiment, for a situation that corresponding environment information cannot be determined only by analyzing the service set identifier of the currently accessed WIFI network and acquiring the first keyword, the second keyword in the second analysis information corresponding to the service set identifier of each accessible WIFI network may also be acquired by analyzing the service set identifiers of all currently accessible WIFI networks. And determining the current environment information of the mobile terminal according to the plurality of second keywords.
Specifically, the second keywords corresponding to the preset number of WIFI networks can be screened out according to the sequence from high to low of the signal intensity of the currently accessible WIFI network. And matching the screened second keywords with a judgment table of preset environment information, and taking the environment information corresponding to the second keywords with the largest quantity as the current environment information of the mobile terminal.
In addition, in order to shorten the analysis process of the service set identifier, analysis processing may be performed only on the service set identifier of the non-operator network and/or analysis processing may be performed after a preset number of WIFI networks are preferentially screened out in the order of signal strength from high to low.
It should be noted that the current geographic location information of the mobile terminal can also be obtained through direct positioning by a Global Positioning System (GPS).
Further, as shown in fig. 4, the step of determining, according to the environment information, the reliability information when the mobile terminal transmits information through the currently accessed WIFI network includes:
s401, matching the environment information with a reliability matching table of preset environment information to obtain a first reliability value of the environment information;
in this embodiment, in the confidence matching table of the preset environment information, the first confidence value of the public environment information (e.g., the mall environment, the hotel environment, etc.) may be set to a low value (e.g., to 1), and the first confidence value of the residential environment information may be set to a high value (e.g., to 10). In addition, the first credibility value can be correspondingly improved according to the increase of the connection times of the same WIFI network connected to the same environmental information. But when the environment information of the currently accessed WIFI network is determined to be public environment information, the first credibility value of the public environment information is initially reset to be 1.
S402, determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal connected with the currently accessed WIFI network within a preset time period;
in this embodiment, the second reliability value of the unconnected WIFI network is set to 1, and the second reliability value is correspondingly improved according to the increase of the connection times (for example, the connection times of the current WIFI network is detected to be 5, and the second reliability value is set to 3). In addition, a second confidence value may also be preset for a particular WIFI network. For example: and if the preset second credibility value of the currently accessed WIFI network is 10 and the second credibility value determined according to the connection times is 1, taking the average value of the preset second credibility value and the second credibility value to determine that the second credibility value of the currently accessed WIFI network is 5.5.
And S403, determining the credibility information of the mobile terminal when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value.
In this embodiment, an average reliability value of the first reliability value and the second reliability value is calculated according to a preset weighting algorithm, and the average reliability value is used as reliability information when the mobile terminal transmits information through the currently accessed WIFI network.
Further, after the step of determining the reliability information when the mobile terminal transmits information through the currently accessed WIFI network, the method further includes:
and when the credibility value in the credibility information is smaller than a preset credibility value, determining that the credibility information reaches a preset condition.
In this embodiment, the reliability value in the reliability information is compared with a preset reliability value, and if the currently accessed WIFI network reliability value is 6, it is determined that the currently accessed WIFI network is an unsafe network (a network that does not suggest to transmit information data containing predetermined information content); and if the credibility value is 10, judging that the currently accessed WIFI network is a secure network.
Specifically, the preset confidence value may be determined according to a preset information content level, an application level, and the like. For example: setting the preset information content grade: the first grade comprises information data related to bank account numbers, personal property and the like; the second level comprises information data related to personal addresses, contact ways, work units and the like; the third level comprises information data related to user login information and the like. The preset credibility values of instant messaging software, websites and the like which relate to user login information and do not relate to user funds and bank account information are set to be between 5 and 8, the preset credibility values which relate to user funds and bank account information are set to be more than 8, and the invention is not limited by the above.
Further, as shown in fig. 5, the step of detecting that the content of the information data needs to be transmitted through the currently accessed WIFI network includes:
s501, acquiring the content of information data needing to be transmitted through the currently accessed WIFI network;
s502, matching the information data with preset information content, and when the matching is successful, determining that the content of the information data needing to be transmitted through the currently accessed WIFI network conforms to the preset information content;
in this embodiment, the predetermined information content includes: user personal information (such as identification card information, addresses, contact information and the like), user login information, bank account information and the like. The predetermined information content is stored in the terminal as a cipher text.
And when the credibility information reaches a preset condition, establishing a data transmission detection thread and detecting the content of the information data input by the user. And analyzing the content of the information data required to be transmitted by the user, and switching the currently accessed WIFI network to the network of the terminal operator to transmit the information data when the content of the information data required to be transmitted through the currently accessed WIFI network contains preset information content.
It is worth mentioning that the transmission detection of the information data is controlled by a data transmission layer, that is, before the WIFI network needs to package and transmit the data, the content of the information data is compared, then the information data is transmitted, and then the data is transmitted through the corresponding WIFI network or the mobile data.
Specifically, when the credibility information reaches a preset condition, monitoring high-security webpages such as an application program related to preset information content and a network protocol in a browser (only aiming at the application program related to network service and input), adding a monitor, monitoring a process generated by each application program, and adding a sensitive word prefabricated list (such as bank account information, user personal information, user login information and the like).
When detecting that a user opens a high-safety application program such as a bank, an input detection thread is established, and information data input by the user in the application program is acquired in real time. For example: the input detection thread acquires keywords (user login information and the like) in the sensitive word prefabricated list by detecting the content of the application program home page. The data in the pre-made list of sensitive words is determined by parsing whether the user enters data content in a subsequent input of user login information. For example: when a user enters an application program of a bank, the first step of operation is to input a user name and a password, and when the user name and the password are confirmed to be input, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the information data.
In the browser, data content on a webpage such as a network protocol is detected through a detection thread. When the information data content needs to be input by the user, the information data content input by the user is judged. For example: the mailbox website can detect according to the setting of a user, when the user inputs data content on a mailbox homepage, key detection can be carried out on the input data content, and when the user operates on a user name and a password bar, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the information data.
In the instant messaging application program, the context content is detected through a detection thread, and when the context content is detected to contain keywords in a sensitive word prefabricated list, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the content. For example: when information such as bank account numbers, identity card numbers and the like in the context content is judged, whether the obtained content is a string of numbers or not is detected, and then long string of data is detected. The user name, the password and the like in the user login information are judged in the context by fuzzy matching, and the transmission range can be reduced by a data mining algorithm.
In this embodiment, the reliability value of the WIFI network in the public environment is set to be a low value, that is, the WIFI network in the public environment is an untrusted network. And when the mobile terminal is detected to be in the public environment, resetting the credibility value of each reconnection to the current WIFI network to 1. And restarting to detect information such as bank application programs, mailbox login and the like in the terminal, and switching the currently accessed WIFI network to a network of a terminal operator to transmit information data after keywords with bank account information, passwords and the like are detected. A mapping table is set here, and the application programs and inputs that need to be detected with emphasis are set through the mapping table, for example: the system comprises application programs such as a bank application program, a browser and instant messaging software, and a sensitive word pre-made list. When the information data content to be transmitted relates to these contents in the mapping table, the transmission of the information data takes place via the network of the terminal operator.
When the currently accessed WIFI network is switched to the network of the terminal operator for transmitting the information data, the network of the terminal operator to which switching is needed is used as an additional WIFI network and added into the currently accessible WIFI network list. Setting the initial value of the credibility value of the additional WIFI network to be 0, and setting the credibility value of the additional WIFI network to be 10 when the additional WIFI network is required to be switched to transmit information data, so as to form a double-data transmission channel.
The data transmission channel is selected by determining whether the content of the information data to be transmitted conforms to the predetermined information content, where the data transmission priority needs to be set in a software-controlled manner. In the additional WIFI network, only information data determined to meet predetermined information content is transmitted without increasing data load of the user. After information data transmission is completed, the credibility value of the additional WIFI network is set to be 0, the previous WIFI network connection is switched, the fact that the WIFI network connection can be quickly switched after the information data transmission is completed is guaranteed, and the WIFI network connection operation does not need to be carried out again.
Further, after the step of switching the currently accessed WIFI network to the network of the terminal operator for information data transmission, the method further includes:
and switching the network of the currently connected terminal operator to the previously accessed WIFI network.
In this embodiment, when the currently accessed WIFI network is switched to the network of the terminal operator to transmit the information data, the network of the terminal operator to which switching is required is added to the currently accessible WIFI network list as an additional WIFI network. Setting the initial value of the credibility value of the additional WIFI network to be 0, and setting the credibility value of the additional WIFI network to be 10 when the additional WIFI network is required to be switched to transmit information data, so as to form a double-data transmission channel.
The data transmission channel is selected by determining whether the content of the information data to be transmitted conforms to the predetermined information content, where the data transmission priority needs to be set in a software-controlled manner. In the additional WIFI network, only information data determined to meet predetermined information content is transmitted without increasing data load of the user. After information data transmission is completed, the credibility value of the additional WIFI network is set to be 0, the previous WIFI network connection is switched, the fact that the WIFI network connection can be quickly switched after the information data transmission is completed is guaranteed, and the WIFI network connection operation does not need to be carried out again.
As shown in fig. 6, an embodiment of the present invention further provides a data transmission device in a WIFI network, which is applied to a mobile terminal, and the device includes:
the identification module 61 is used for detecting the current environment information of the mobile terminal;
in this embodiment, the environment information includes information of a current geographical location of the mobile terminal and/or information of a current access network state of the mobile terminal. The geographical location information includes a shopping mall environment, a residential site, an office site, and the like. The network state information includes the network state of the access operator and the network state of the access non-operator.
The processing module 62 is configured to determine, according to the environment information, reliability information when the mobile terminal transmits information through a currently-accessed WIFI network;
in this embodiment, the reliability information may be determined according to a reliability value of the preset geographic location information, the connection frequency of the currently accessed WIFI network within a preset time period, the network state information, and the like.
The detection module 63 is configured to detect content of information data that needs to be transmitted through a currently accessed WIFI network when the reliability information reaches a preset condition;
in this embodiment, when detecting that the content of the information data that needs to be transmitted currently includes the predetermined information content, the detecting module 63 sends the content of the information data that needs to be transmitted currently to the transmitting module 64 for transmission. Wherein the predetermined information content comprises: the bank account number, the identification number, the contact way and other user names and passwords of the user.
And the transmission module 64 is configured to switch the currently accessed WIFI network to a network of a terminal operator to transmit the information data if the content of the information data transmitted through the currently accessed WIFI network meets the predetermined information content.
In this embodiment, the transmission module 64 receives the content of the information data sent by the detection module 63, and switches the currently accessed WIFI network to the network of the terminal operator to transmit the information data. According to the scheme, when the credibility value of the currently accessed WIFI network is lower than the preset credibility value, leakage of personal information data of a user is avoided.
Further, the identification module 61 includes:
a first analyzing unit 610, configured to analyze a service set identifier of a currently accessed WIFI network to obtain first analysis information;
in this embodiment, a manner of analyzing a service set identifier of a WIFI network is described by taking a shopping mall environment as an example. For example, for the service set identifier containing the Chinese name, a way of directly extracting Chinese keywords is adopted. For the service set identifier named by the store name, the store name can be directly extracted as the first keyword. The service set identifier containing the letter name can be analyzed according to the mode that the letters contrast the Chinese Pinyin, the Chinese Pinyin in the service set identifier is translated into the Chinese name, and the first keyword is obtained. For the service set identifier containing the english name, the name of the store represented by the english name can be directly used as the first keyword.
A first obtaining unit 611, configured to obtain a first keyword in the first parsing information;
in this embodiment, the first keyword is a keyword that represents environment information in which the mobile terminal is currently located. For example: and analyzing to obtain first analysis information which is the name of a certain clothing brand, and extracting the clothing brand name as a first keyword. And determining that the environment information of the current mobile terminal is the market environment according to the first keyword.
A first identifying unit 612, configured to determine, according to the first keyword, environment information where the mobile terminal is currently located.
In this embodiment, the first identifying unit 612 may match the first keyword with a determination table of preset environment information, and use the environment information in the determination table of preset environment information corresponding to the first keyword as the environment information where the mobile terminal is currently located.
Further, the identification module 61 includes:
a second analyzing unit 613, configured to analyze service set identifiers of all currently accessible WIFI networks, to obtain second analysis information corresponding to the service set identifier of each accessible WIFI network;
a second obtaining unit 614, configured to obtain a second keyword in each piece of second parsing information;
a second identifying unit 615, configured to determine, according to the second keyword, environment information where the mobile terminal is currently located.
In this embodiment, for the situation that the corresponding environment information cannot be determined only by analyzing the service set identifier of the currently accessed WIFI network and acquiring the first keyword, the second analyzing unit 613 may also be used to analyze the service set identifiers of all currently accessible WIFI networks, and the second acquiring unit 614 is used to acquire the second keyword in the second analysis information corresponding to the service set identifier of each accessible WIFI network. The second recognition unit 615 determines the environment information in which the mobile terminal is currently located according to the plurality of second keywords.
Specifically, the second keywords corresponding to the preset number of WIFI networks can be screened out according to the sequence from high to low of the signal intensity of the currently accessible WIFI network. And matching the screened second keywords with a judgment table of preset environment information, and taking the environment information corresponding to the second keywords with the largest quantity as the current environment information of the mobile terminal.
In addition, in order to shorten the analysis process of the service set identifier, analysis processing may be performed only on the service set identifier of the non-operator network and/or analysis processing may be performed after a preset number of WIFI networks are preferentially screened out in the order of signal strength from high to low.
It should be noted that the current geographic location information of the mobile terminal can also be obtained through direct positioning by a Global Positioning System (GPS).
Further, the processing module 62 includes:
a first matching unit 620, configured to match the environment information with a reliability matching table of preset environment information, to obtain a first reliability value of the environment information;
in this embodiment, in the confidence matching table of the preset environment information, the first confidence value of the public environment information (e.g., the mall environment, the hotel environment, etc.) may be set to a low value (e.g., to 1), and the first confidence value of the residential environment information may be set to a high value (e.g., to 10). In addition, the first credibility value can be correspondingly improved according to the increase of the connection times of the same WIFI network connected to the same environmental information. But when the environment information of the currently accessed WIFI network is determined to be public environment information, the first credibility value of the public environment information is initially reset to be 1.
The first processing unit 621 is configured to determine a second reliability value of the currently-accessed WIFI network according to the connection frequency of the mobile terminal connected to the currently-accessed WIFI network in a preset time period;
in this embodiment, the second confidence value of the unconnected WIFI network is set to 1. And correspondingly improving the second reliability value according to the increase of the connection times (for example, detecting that the connection times of the current WIFI network are 5, and setting the second reliability value to be 3). In addition, a second confidence value may also be preset for a particular WIFI network. For example: and if the preset second credibility value of the currently accessed WIFI network is 10 and the second credibility value determined according to the connection times is 1, taking the average value of the preset second credibility value and the second credibility value to determine that the second credibility value of the currently accessed WIFI network is 5.5.
A second processing unit 622, configured to determine, according to the first reliability value and the second reliability value, reliability information when the mobile terminal transmits information through a currently-accessed WIFI network.
In this embodiment, the second processing unit 622 may calculate an average reliability value of the first reliability value and the second reliability value according to a preset weighting algorithm, as reliability information when the mobile terminal transmits information through the currently accessed WIFI network.
Further, the apparatus further comprises:
the judging module 65 is configured to determine that the reliability information reaches a preset condition when a reliability value in the reliability information is smaller than a preset reliability value.
In this embodiment, the determining module 65 compares the reliability value in the reliability information with a preset reliability value (for example, the preset reliability value is set to 8), and if the currently accessed WIFI network reliability value is 6, determines that the currently accessed WIFI network is an insecure network (a network that does not suggest to transmit information data containing predetermined information content); and if the credibility value is 10, judging that the currently accessed WIFI network is a secure network.
Specifically, the preset confidence value may be determined according to a preset information content level, an application level, and the like. For example: setting the preset information content grade: the first grade comprises information data related to bank account numbers, personal property and the like; the second level comprises information data related to personal addresses, contact ways, work units and the like; the third level comprises information data related to user login information and the like. The preset credibility values of instant messaging software, websites and the like which relate to user login information and do not relate to user funds and bank account information are set to be between 5 and 8, the preset credibility values which relate to user funds and bank account information are set to be more than 8, and the invention is not limited by the above.
Further, the detection module 63 includes:
a third obtaining unit 630, configured to obtain content of information data to be transmitted through a currently accessed WIFI network;
the second matching unit 631 is configured to match the information data with predetermined information content, and when the matching is successful, determine that the content of the information data that needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;
in this embodiment, the predetermined information content includes: user personal information (such as identification card information, addresses, contact information and the like), user login information, bank account information and the like. The predetermined information content is stored in the terminal as a cipher text.
When the reliability information reaches a preset condition, the detection module 63 establishes a data transmission detection thread to detect the content of the information data input by the user. The third obtaining unit 630 analyzes the content of the information data that needs to be transmitted by the user, and when the second matching unit 631 determines that the content of the information data that needs to be transmitted through the currently accessed WIFI network includes the preset information content, the currently accessed WIFI network is switched to the network of the terminal operator through the transmission module 64 to transmit the information data.
It is worth mentioning that the transmission detection of the information data is controlled by a data transmission layer, that is, before the WIFI network needs to package and transmit the data, the content of the information data is compared, then the information data is transmitted, and then the data is transmitted through the corresponding WIFI network or the mobile data.
Specifically, when the reliability information reaches a preset condition, the detection module 63 first monitors high-security webpages (only for applications and inputs related to network services) such as an application related to preset information content and a network protocol in a browser, adds a monitor, monitors a process generated by each application, and adds a pre-made list of sensitive words (for example, bank account information, user personal information, user login information, and the like).
When detecting that a user opens a high-safety application program such as a bank, an input detection thread is established, and information data input by the user in the application program is acquired in real time. For example: the input detection thread acquires keywords (user login information and the like) in the sensitive word prefabricated list by detecting the content of the application program home page. The data in the pre-made list of sensitive words is determined by parsing whether the user enters data content in a subsequent input of user login information. For example: when a user enters an application program of a bank, the first step of operation is to input a user name and a password, and when the user name and the password are confirmed to be input, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the information data.
In the browser, data content on a webpage such as a network protocol is detected through a detection thread. When the information data content needs to be input by the user, the information data content input by the user is judged. For example: the mailbox website can detect according to the setting of a user, when the user inputs data content on a mailbox homepage, key detection can be carried out on the input data content, and when the user operates on a user name and a password bar, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the information data.
In the instant messaging application program, the context content is detected through a detection thread, and when the context content is detected to contain keywords in a sensitive word prefabricated list, the currently accessed WIFI network is switched to a network of a terminal operator to transmit the content. For example: when information such as bank account numbers, identity card numbers and the like in the context content is judged, whether the obtained content is a string of numbers or not is detected, and long string of data in the context content is detected. The user name, the password and the like in the user login information are judged in the context by fuzzy matching, and the transmission range can be reduced by a data mining algorithm.
In this embodiment, the reliability value of the WIFI network in the public environment is set to be a low value, that is, the WIFI network in the public environment is an untrusted network. And when the mobile terminal is detected to be in the public environment, resetting the credibility value of each reconnection to the current WIFI network to 1. And restarting to detect information such as bank application programs, mailbox login and the like in the terminal, and switching the currently accessed WIFI network to a network of a terminal operator to transmit information data after keywords with bank account information, passwords and the like are detected. A mapping table is set here, and the application programs and inputs that need to be detected with emphasis are set through the mapping table, for example: the system comprises application programs such as a bank application program, a browser and instant messaging software, and a sensitive word pre-made list. When the information data content to be transmitted relates to these contents in the mapping table, the transmission of the information data takes place via the network of the terminal operator.
When the currently accessed WIFI network is switched to the network of the terminal operator for transmitting the information data, the network of the terminal operator to which switching is needed is used as an additional WIFI network and added into the currently accessible WIFI network list. Setting the initial value of the credibility value of the additional WIFI network to be 0, and setting the credibility value of the additional WIFI network to be 10 when the additional WIFI network is required to be switched to transmit information data, so as to form a double-data transmission channel.
The data transmission channel is selected by determining whether the content of the information data to be transmitted conforms to the predetermined information content, where the data transmission priority needs to be set in a software-controlled manner. In the additional WIFI network, only information data determined to meet predetermined information content is transmitted without increasing data load of the user. After information data transmission is completed, the credibility value of the additional WIFI network is set to be 0, the previous WIFI network connection is switched, the fact that the WIFI network connection can be quickly switched after the information data transmission is completed is guaranteed, and the WIFI network connection operation does not need to be carried out again.
Further, the apparatus further comprises:
and a switching module 66, configured to switch a network of a currently connected terminal operator to a previously accessed WIFI network.
In this embodiment, when the currently accessed WIFI network is switched to the network of the terminal operator to transmit the information data, the transmission module 64 adds the network of the terminal operator to be switched to as an additional WIFI network to the currently accessible WIFI network list. Setting the initial value of the credibility value of the additional WIFI network to be 0, and setting the credibility value of the additional WIFI network to be 10 when the additional WIFI network is required to be switched to transmit information data, so as to form a double-data transmission channel.
The data transmission channel is selected by determining whether the content of the information data to be transmitted conforms to the predetermined information content, where the data transmission priority needs to be set in a software-controlled manner. In the additional WIFI network, only information data determined to meet predetermined information content is transmitted without increasing data load of the user. After the information data transmission is completed, the reliability value of the additional WIFI network is set to 0, the network of the currently connected operator is switched to the previous WIFI network connection through the switching module 66, and it is guaranteed that the network can be quickly switched to the WIFI network connection after the information data transmission is completed, and the operation of the WIFI network connection is not required to be performed again.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (12)

1. A data transmission method under a WIFI network is applied to a mobile terminal, and is characterized by comprising the following steps:
analyzing a service set identifier currently accessed to a WIFI network, determining geographical position information of a mobile terminal currently accessed to the WIFI network, and matching the geographical position information of the mobile terminal currently accessed to the WIFI network with a reliability matching table of preset environment information to obtain a first reliability value of the geographical position information;
determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period, and determining credibility information of the mobile terminal when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value;
judging whether the credibility information reaches a preset condition, and detecting the content of information data needing to be transmitted through the currently accessed WIFI network when the credibility information reaches the preset condition;
and if the content of the information data transmitted through the currently accessed WIFI network meets the preset information content, switching the currently accessed WIFI network to the network of the terminal operator.
2. The method of claim 1, wherein the step of determining the geographical location information of the mobile terminal currently accessing the WIFI network by analyzing the service set identifier currently accessing the WIFI network comprises:
analyzing a service set identifier of a currently accessed WIFI network to obtain first analysis information;
acquiring a first keyword in the first analysis information;
and determining the current geographical position information of the mobile terminal according to the first keyword.
3. The method of claim 1, further comprising:
analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;
acquiring a second keyword in each second analysis message;
and determining the current geographic position information of the mobile terminal according to the second keyword.
4. The method of claim 1, wherein after the step of determining the credibility information of the mobile terminal when transmitting information through the currently accessed WIFI network, the method further comprises:
and when the credibility value in the credibility information is smaller than a preset credibility value, determining that the credibility information reaches a preset condition.
5. The method of claim 1, wherein the step of detecting the content requiring transmission of information data over the currently accessed WIFI network comprises:
acquiring the content of information data to be transmitted through the currently accessed WIFI network;
matching the information data with predetermined information content, and when the matching is successful, determining that the content of the information data needing to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;
the preset information content comprises user personal information, user login information and bank account information.
6. The method of claim 1, wherein after the step of switching the currently accessed WIFI network to the network of the terminal operator for transmission of the information data, the method further comprises:
and switching the network of the currently connected terminal operator to the previously accessed WIFI network.
7. A data transmission device under a WIFI network is applied to a mobile terminal, and is characterized by comprising:
the identification module is used for analyzing a service set identifier currently accessed to the WIFI network, determining the geographical position information of the mobile terminal currently accessed to the WIFI network, and matching the geographical position information of the mobile terminal currently accessed to the WIFI network with a reliability matching table of preset environment information to obtain a first reliability value of the geographical position information;
the processing module is used for determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period, and determining credibility information when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value;
the detection module is used for judging whether the reliability information reaches a preset condition or not, and detecting the content of information data which needs to be transmitted through the currently accessed WIFI network when the reliability information reaches the preset condition;
and the transmission module is used for switching the currently accessed WIFI network to the network of the terminal operator if the content of the information data transmitted through the currently accessed WIFI network meets the preset information content.
8. The apparatus of claim 7, wherein the identification module comprises:
the first analysis unit is used for analyzing the service set identifier of the currently accessed WIFI network to obtain first analysis information;
a first obtaining unit, configured to obtain a first keyword in the first analysis information;
and the first identification unit is used for determining the current geographical position information of the mobile terminal according to the first keyword.
9. The apparatus of claim 7, wherein the identification module comprises:
the second analysis unit is used for analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;
a second obtaining unit, configured to obtain a second keyword in each piece of second parsing information;
and the second identification unit is used for determining the current geographic position information of the mobile terminal according to the second keyword.
10. The apparatus of claim 7, further comprising:
and the judging module is used for determining that the credibility information reaches a preset condition when the credibility value in the credibility information is smaller than a preset credibility value.
11. The apparatus of claim 7, wherein the detection module comprises:
the third acquisition unit is used for acquiring the content of the information data which needs to be transmitted through the currently accessed WIFI network;
the second matching unit is used for matching the information data with the preset information content, and when the matching is successful, the content of the information data needing to be transmitted through the currently accessed WIFI network is determined to accord with the preset information content;
the preset information content comprises user personal information, user login information and bank account information.
12. The apparatus of claim 7, further comprising:
and the switching module is used for switching the network of the currently connected terminal operator to the previously accessed WIFI network.
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