CN103544447B - A kind of method preventing confidential information from revealing based on Android system and terminal - Google Patents
A kind of method preventing confidential information from revealing based on Android system and terminal Download PDFInfo
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- CN103544447B CN103544447B CN201310208989.0A CN201310208989A CN103544447B CN 103544447 B CN103544447 B CN 103544447B CN 201310208989 A CN201310208989 A CN 201310208989A CN 103544447 B CN103544447 B CN 103544447B
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- application
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- permission list
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/44—Program or device authentication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
Abstract
The invention discloses a kind of method preventing confidential information from revealing based on Android system and terminal, described method includes: A, create for storing the authority of application permission list at Android bottom, and confidential information classification is stored in application permission list；B, Android bottom generate privately owned API, the content of application permission list is set by privately owned API；C, when apply reading machine confidential information time, judge whether this application has permission acquisition confidential information at Android native layer according to application permission list；If application obtains confidential information, return time no and obtain failure information.The present invention generates privately owned API at Android bottom, judge whether this application has permission acquisition confidential information at its native layer, make application directly across Android JNI layer to obtain confidential information, thus the control that confidential information is accessed can not be realized, improve information security.
Description
Technical field
The present invention relates to terminal software safety, particularly to a kind of method preventing confidential information from revealing based on Android system and terminal.
Background technology
Based on Android(Android) system has open code, automatically RAM(random access memory is reclaimed, random access memory) thus improve the speed of service, application software is many and most freely, the feature such as simple to operate, Android system is widely used on the digital equipments such as smart mobile phone, panel computer, TV.But, android system there is also some problems, especially in terms of information security.The spendable application software of Android system is a lot, but these softwares there is no and retrained by control, and possible implanted malicious code in software, the quality of the application being downloaded use is very different causes unstable properties.
A lot of application softwaries can arbitrarily obtain the personal information of user in the case of user knows nothing, such as, navigation type application software can obtain the positional information that user is current, a picture beautifies software and may require that acquisition message registration, and the trivial games cutting Citrullus vulgaris etc the most also obtains the positional information of user；This causes the biggest threat to the personal information security of user.Although having when installing application software mandate to remind, but Most users not taking notice of that these are pointed out, usual user does not knows that these application have obtained its confidential information.In order to solve this problem, disclose the solution of some information securities the most on the net, be all based on the standard API(Application Programming of android system
Interface, application programming interface) realize.Such as Publication No. CN102289633A, the patent document of the application program method for managing dynamic permission under invention entitled Android platform, when application program accesses the API needing authority, judging that this API is the most disabled according to the record in System Privileges table, user may choose whether that can revise authority access this API to control application program.But; these API are disclosed, easy implanted malicious code or easily crack existing protection priority assignation, in other words; there is software and decode leak in existing rights management mechanism, but implementation information safeguard protection does not ensures that confidential information will not be revealed from software view.
Thus prior art could be improved and improve.
Summary of the invention
In place of above-mentioned the deficiencies in the prior art; it is an object of the invention to provide a kind of method preventing confidential information from revealing based on Android system and terminal, cannot ensure the problem that confidential information will not be revealed solving prior art implementation information safeguard protection from software view.
In order to achieve the above object, this invention takes techniques below scheme:
A kind of method preventing confidential information from revealing based on Android system, comprising:
A, create for storing the authority of application permission list at Android bottom, and confidential information classification is stored in application permission list；
B, Android bottom generate privately owned API, the content of application permission list is set by privately owned API；
C, when apply reading machine confidential information time, judge whether this application has permission acquisition confidential information at Android native layer according to application permission list；The most then application obtains confidential information, returns and obtain failure information time no.
The described method preventing confidential information from revealing based on Android system, wherein, described step B specifically includes:
B1, installation priority assignation application, generate privately owned API at Android bottom；
B2, by privately owned API Access application permission list, amendment application permission list has and obtains the application type of authority and this application has permission the content of confidential information of acquisition；
B3, preserve amended application permission list.
The described method preventing confidential information from revealing based on Android system, wherein, described step C specifically includes:
C1, when apply reading machine confidential information time, this application call privately owned API of standard API Access, read application permission list；
C2, judge whether current application mates with the application in application permission list at Android native layer:
If C3 mates, then in application permission list, inquire about the type that current application has permission the confidential information of acquisition, obtain information data corresponding to the type by standard API and show.
The described method preventing confidential information from revealing based on Android system, wherein, described step C3 also includes: if current application is not mated with the application in application permission list, then generate for pointing out user's current application to have no right to obtain the information of confidential information, and transmits to display screen and show.
The described method preventing confidential information from revealing based on Android system, wherein, in described step C1, during this application call privately owned API of standard API Access, also including the application message obtaining this application, described application message includes the type of the confidential information applying name, bag name, these application needs to obtain.
The described method preventing confidential information from revealing based on Android system, wherein, in described step C2, if the bag name of application is identical in the Bao Mingyu application permission list of current application, is then judged as coupling.
The described method preventing confidential information from revealing based on Android system, wherein, described step C3 also includes:
C31, judge that the type of the confidential information that current application needs to obtain is whether the most identical with the type that application permission list is arranged；
If C32 is identical, then obtains information data corresponding to the type by standard API and show.
The described method preventing confidential information from revealing based on Android system, wherein, described step C32 also includes:
If the type that current application needs type and the application permission list of the confidential information obtained to arrange differs, then generate the information being used for pointing out user's current application acquisition confidential information content wrong, and transmit to display screen and show.
The described method preventing confidential information from revealing based on Android system, wherein, described confidential information includes the machine hardware information, owner's information and communication information；One application has permission and obtains one or more confidential information simultaneously.
A kind of terminal for realizing the described method preventing confidential information from revealing based on Android system, comprising:
Message processing module, for creating the authority for storing application permission list at Android bottom, and is stored in confidential information classification in application permission list；
Privately owned control module, for generating privately owned API at Android bottom, arranges the content of application permission list by privately owned API；
According to application permission list, judge module, for when applying reading machine confidential information, judging whether this application has permission acquisition confidential information at Android native layer.
Compared to prior art, the method preventing confidential information from revealing based on Android system of present invention offer and terminal, privately owned API is generated at Android bottom, confidential information classification is stored in the application permission list of Android bottom, the content of application permission list could can only be set by privately owned API, when applying reading machine confidential information, judge whether this application has permission acquisition confidential information at Android native, make application the interface calling below Android primary layer can not be gone to obtain confidential information directly across Android JNI layer, avoid existing application to walk around Android rights management by standard API and illegally obtain the situation of user profile, thus realize the control that confidential information is accessed, improve Information Security.
Accompanying drawing explanation
Fig. 1 is the present invention Android system structural representation preventing confidential information from revealing based on Android system.
Fig. 2 is the present invention method flow diagram preventing confidential information from revealing based on Android system.
Fig. 3 is the schematic diagram that the present invention application permission preventing confidential information from revealing based on Android system arranges interface.
Fig. 4 is the present invention schematic diagram checking permissions list preventing confidential information from revealing based on Android system.
Fig. 5 is that the present invention is for realizing the structured flowchart of the terminal preventing confidential information from revealing based on Android system.
Detailed description of the invention
The present invention provides a kind of method preventing confidential information from revealing based on Android system and terminal, and for making the purpose of the present invention, technical scheme and effect clearer, clear and definite, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention is provided with access rights to having applied and accesses content, and the application of users to trust just has permission the confidential information accessing user, does not has the application of authority can not obtain confidential information.The method preventing confidential information from revealing based on Android system that the present invention provides, wherein, as shown in Figure 1, described Android system includes that Android application layer, Android java(mono-kind can write the object oriented program language of cross-platform software) layer, Android JNI(java native interface, java calls this locality) layer, Android native layer and Android bottom.Android java layer is provided that standard API and the logical operations of application adaptation, uses java language to realize.Android native layer uses C/C++ language to realize function compiling.Android JNI layer is used for realizing language conversion, is equivalent to make Android java layer dock with the interface of Android native layer, makes Android java layer can be called the function of Android native layer by Android JNI layer.Please refer to Fig. 1 and Fig. 2, described in prevent confidential information from revealing method include:
S100, create for storing the authority of application permission list at Android bottom, and confidential information classification is stored in application permission list；
S200, Android bottom generate privately owned API, the content of application permission list is set by privately owned API；
S300, when apply reading machine confidential information time, judge whether this application has permission acquisition confidential information at Android native layer according to application permission list；The most then application obtains confidential information, returns and obtain failure information time no.
Can obtain different confidential information based on different application in use, arrange the authority of application and the type of its confidential information that can obtain for the ease of user flexibility, the present invention needs first confidential information to user to classify storage.In the step s 100, described confidential information is divided three classes, and is the machine hardware information, owner's information and communication information respectively.The machine hardware information can be subdivided into the system version of terminal, type of hardware, memory size etc..Owner's information can be subdivided into the title of user, account, password etc..Communication information can be subdivided into address list, short message content, GPS(Global Positioning System, global positioning system) etc..By the classification to confidential information, limit application and obtain the confidential information relevant to its function, it is to avoid the leakage of non-functional relevant confidential information.As navigation type application be only capable of obtain user positional information be easy to navigation, this navigation type application need not also lack of competence obtain user short message content, short message content can be avoided to reveal.
Standard API based on Android is disclosed, even if standard API be have employed the methods such as priority assignation by prior art, it still suffers from certain system vulnerability, and standard API using Android system to provide carries out priority assignation or amendment or acquisition confidential information all exists certain potential safety hazard.To this end, the present embodiment corresponding private privately owned API of program code that increases in existing Android system solves above-mentioned potential safety hazard, then step S200 specifically includes:
Step 21: install priority assignation application, generate privately owned API at Android bottom；
Step 22, by privately owned API Access application permission list, amendment application permission list has and obtains the application type of authority and this application has permission the content of confidential information of acquisition；
Step 23, preserve amended application permission list.
As in figure 2 it is shown, the privately owned API generated in existing Android system after installing priority assignation application, its code is non-public, manufacturer provide.The authority of application is set as data channel by privately owned API, program can be avoided to be cracked and the problem that causes confidential information to be revealed.Generating the application permission list of a blank after installing priority assignation application for the first time, confidential information and application trusty are added this application permission list by user.
On the display screen of terminal, generate an icon after priority assignation application is mounted, after clicking on this icon, occur that permission configuration interface as shown in Figure 3 realizes amendment or updates application permission list.User can become this application to have the right simultaneously to obtain one or more confidential information according to the function setting of application.Click on the icon in this interface can enter the operating instructions add or revise application data.The icon selecting application and selection public information type therein is drop-down menu.When the icon checking permissions list clicked in Fig. 3, occur that authority as shown in Figure 4 checks interface.Assume to apply B for purchasing by group application, its content of address list in acquisition confidential information of having the right.Application C is navigation application, can obtain user's current global positioning system (GPS) information.The content modification of the confidential information that application and this application can be obtained is stored in authority after completing.In Fig. 4, user can delete the confidential information of application (be equivalent to cancel this application and obtain the authority of confidential information) or amendment and this association by this interface.It should be appreciated that Fig. 3 and Fig. 4 is only the interface schematic diagram of the offer of the present embodiment, it can also be made up of other icon arrangement and content.
After setting application permission list by above-mentioned steps, when application needs to obtain user data, judging whether this application has acquisition authority at Android native layer, its basis for estimation is described application permission list, and described step S300 specifically includes:
Step 31, when apply reading machine confidential information time, this application call privately owned API of standard API Access, read application permission list；
Step 32, judge whether current application mates with the application in application permission list at Android native layer；
If step 33 is mated, then in application permission list, inquire about the type that current application has permission the confidential information of acquisition, obtain information data corresponding to the type by standard API and show.
In described step 31, during this application call privately owned API of standard API Access, also including the application message obtaining this application, described application message includes the type of the confidential information applying name, bag name, these application needs to obtain.In described step 32, if the bag name of application is identical in the Bao Mingyu application permission list of current application, then it is judged as coupling.This application has the authority obtaining confidential information, can obtain, from Android bottom, the confidential information with this association arranged application permission list by standard API；Pass sequentially through Android native layer after acquisition, Android JNI layer, Android java layer, the transmission of Android application layer show to display screen.
Described step 33 also includes: if current application is not mated with the application in application permission list, then generate for pointing out user's current application to have no right to obtain the information of confidential information, and transmits to display screen and show.During even current application does not appears in application permission list, then generate for pointing out user's current application to have no right to obtain the information of confidential information at Android native layer, and pass sequentially through Android JNI layer, Android java layer, the transmission of Android application layer show to display screen.
Some application may obtain confidential information incoherent with its function, assume that a navigation application has acquisition authority, but its positional information and address list of requiring to obtain user, user has opened the acquisition authority of positional information, address list and navigation there is no direct relation and be prohibited to obtain, in this case, described step 33 also includes:
Step 331, judge that the type of the confidential information that current application needs to obtain is whether the most identical with the type that application permission list is arranged；
If step 332 is identical, then obtains information data corresponding to the type by standard API and show.
Described step 332 also includes:
If the type that current application needs type and the application permission list of the confidential information obtained to arrange differs, then generate the information being used for pointing out user's current application acquisition confidential information content wrong, and transmit to display screen and show.
After above-mentioned steps 331 to 332, navigation application can obtain the positional information of user by standard API.Address list is not arranged in application permission list, and the information of generation can be shown as " navigation application illegally obtains address list, is prohibited ".The acquisition authority prompting the user whether to need relieving address list with this.
It is emphasized that the present embodiment uses and carry out authority judgement at Android native layer.Prior art generally realizes Android rights management in Android application layer or Android java layer.It is disclosed based on existing standard API, this two-layer arrange application authority or carry out authority judge easily be cracked or artificially change result, the application permission applying use senior can bypass existing Android rights management by standard API and reaches to obtain the purpose of confidential information, causes confidential information to be revealed.And the present invention carries out authority judgement at Android native layer, application can not go the interface calling below Android native layer to obtain confidential information directly across Android JNI layer, and so application cannot evade the title whether having current application in authority Rule of judgment, i.e. application permission list.Meanwhile, described application permission list is set by user oneself, needs the data channel formed by private privately owned API to revise, and other people cannot be introduced into this data channel also cannot arbitrarily change Rule of judgment, further increases confidential information safety guarantee.
Based on the above-mentioned method automatically installing application according to user type, the embodiment of the present invention also provides for a kind of terminal, refers to Fig. 5, described terminal includes the message processing module 101, privately owned control module 102 and the judge module 103 that are sequentially connected with.Create the authority for storing application permission list by message processing module 101 at Android bottom, and confidential information classification is stored in application permission list.Privately owned control module 102 generates privately owned API at Android bottom, is arranged the content of application permission list by privately owned API.When applying reading machine confidential information, it is judged that according to application permission list, module 103 judges whether this application has permission acquisition confidential information at Android native layer.
In the present embodiment, application is when needing reading machine confidential information, calls the privately owned API of standard API Access to read application permission list at Android java layer, the most also obtains the application message of this application.According to the application permission list read, judge module 103 judges whether this application has permission acquisition confidential information, feed back judged result.If the application bag name coupling in the Bao Mingyu application permission list of current application, then message processing module 101 obtains, from Android bottom, the confidential information that this application can obtain by standard API, passes sequentially through Android native layer, Android JNI layer, Android java layer, the transmission of Android application layer show to display screen.If current application does not appears in application permission list, then judge module 103 generates for pointing out user's current application to have no right to obtain the information of confidential information, passes sequentially through Android JNI layer, Android java layer, the transmission of Android application layer show to display screen.
In the present embodiment, described terminal is to use the smart mobile phone of Android system, panel computer or TV.Described terminal also includes generation module and priority assignation module.Described generation module, when installing priority assignation application, generates privately owned API at Android bottom, also creates the authority for storing power application permission list at Android bottom.
In sum, the present invention is directed to the open problem causing its rights management mechanism to there are security breaches of standard API of existing Android system, authority judgement is carried out at Android native layer, make application the interface calling below Android native layer can not be gone to obtain confidential information directly across Android JNI layer, avoid application and evade authority judgement management, it is achieved that the control that confidential information is accessed.Simultaneously, by installing the private privately owned API of priority assignation application generator code, only call this privately owned API and could revise authority Rule of judgment, it is to avoid API is caused authority Rule of judgment to be tampered the confidential information caused by illegal invasion revealing, improve the safety of confidential information.User can also arbitrarily arrange the type of confidential information that application can obtain, the sweetly disposition situation of confidential information permission use, is user-friendly to, improves the competitiveness of product.
It is understood that for those of ordinary skills, can be according to technical scheme and inventive concept thereof in addition equivalent or change, and all these change or replace the protection domain that all should belong to appended claims of the invention.
Claims (10)
1. the method preventing confidential information from revealing based on Android system, it is characterised in that including:
Step A, create for storing the authority of application permission list at Android bottom, and confidential information classification is stored in application permission list；
Step B, Android bottom generate privately owned API, the content of application permission list is set by privately owned API；
Step C, when apply reading machine confidential information time, judge whether this application has permission acquisition confidential information at Android native layer according to application permission list；The most then application obtains confidential information, returns and obtain failure information time no.
The method preventing confidential information from revealing based on Android system the most according to claim 1, it is characterised in that described step B specifically includes:
Step B1, installation priority assignation application, generate privately owned API at Android bottom；
Step B2, by privately owned API Access application permission list, amendment application permission list has and obtains the application type of authority and this application has permission the content of confidential information of acquisition；
Step B3, preserve amended application permission list.
The method preventing confidential information from revealing based on Android system the most according to claim 1, it is characterised in that described step C specifically includes:
Step C1, when apply reading machine confidential information time, this application call privately owned API of standard API Access, read application permission list；
Step C2, judge whether current application mates with the application in application permission list at Android native layer:
If step C3 is mated, then in application permission list, inquire about the type that current application has permission the confidential information of acquisition, obtain information data corresponding to the type by standard API and show.
The method preventing confidential information from revealing based on Android system the most according to claim 3, it is characterized in that, described step C3 also includes: if current application is not mated with the application in application permission list, then generate for pointing out user's current application to have no right to obtain the information of confidential information, and transmit to display screen and show.
The method preventing confidential information from revealing based on Android system the most according to claim 3, it is characterized in that, in described step C1, during this application call privately owned API of standard API Access, also including the application message obtaining this application, described application message includes the type of the confidential information applying name, bag name and this application needs to obtain.
The method preventing confidential information from revealing based on Android system the most according to claim 5, it is characterised in that in described step C2, if the bag name of application is identical in the Bao Mingyu application permission list of current application, is then judged as coupling.
The method preventing confidential information from revealing based on Android system the most according to claim 5, it is characterised in that described step C3 also includes:
Step C31, judge that the type of the confidential information that current application needs to obtain is whether the most identical with the type that application permission list is arranged；
If step C32 is identical, then obtains information data corresponding to the type by standard API and show.
The method preventing confidential information from revealing based on Android system the most according to claim 7, it is characterised in that described step C32 also includes:
If the type that current application needs type and the application permission list of the confidential information obtained to arrange differs, then generate the information being used for pointing out user's current application acquisition confidential information content wrong, and transmit to display screen and show.
The method preventing confidential information from revealing based on Android system the most according to claim 1, it is characterised in that described confidential information includes the machine hardware information, owner's information and communication information；One application has permission and obtains one or more confidential information simultaneously.
10. the terminal being used for realizing the method preventing confidential information from revealing based on Android system as claimed in claim 1, it is characterised in that including:
Message processing module, for creating the authority for storing application permission list at Android bottom, and is stored in confidential information classification in application permission list；
Privately owned control module, for generating privately owned API at Android bottom, arranges the content of application permission list by privately owned API；
According to application permission list, judge module, for when applying reading machine confidential information, judging whether this application has permission acquisition confidential information at Android native layer.
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| CN105989296B (en) * | 2015-01-27 | 2019-03-19 | 华为技术有限公司 | The method and apparatus for controlling application access |
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