CN104268463A - Method and device for managing calling authority of camera - Google Patents
Method and device for managing calling authority of camera Download PDFInfo
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- CN104268463A CN104268463A CN201410471699.XA CN201410471699A CN104268463A CN 104268463 A CN104268463 A CN 104268463A CN 201410471699 A CN201410471699 A CN 201410471699A CN 104268463 A CN104268463 A CN 104268463A
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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
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/51—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- Computer Security & Cryptography (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a method and a device for managing the calling authority of a camera. The method comprises the following steps of: creating system attributes related to calling for the camera and assigning during a system initialization process; when an application program calls the camera, reading the system attributes related to calling for the camera, carrying out authority verification on the application program and returning a verification result; enabling the application program to operate the camera according to the verification result. The method and the device provided by the invention are capable of reducing the security threats of the application program on a system platform from a system level, and controlling and managing the camera resources of the system, thus ensuring the security of data during the calling process for the camera, and effectively preventing privacy disclosure.
Description
Technical field
The present invention relates to areas of information technology, particularly relate to a kind of camera and call right management method and equipment.
Background technology
At present, smart mobile phone becomes the carrier of the various information of user, stores a large amount of important informations, therefore also becomes the preferred object of malicious attack.The very major part of smart mobile phone security threat comes from divulging a secret of individual privacy and various malice and to deduct fees software, these Malwares utilize the leak of authority mechanism in the past to abuse authority opponent machine and attack, and What is more also can at Background scheduling camera to spy upon privacy.
In prior art, the method that solution Android camera calls rights management issues has:
1. use the Permission mechanism carried in existing Android operation system, CAMERA (camera) authority " android.permission.CAMERA " is determined in AndroidManifest.xml document, once after being confirmed by the user installation, can control to call camera.
2. use the equipment control (DevicePolicyManager class) that Android provides.Android system, from 2.2 versions, provides the management work that a set of equipment management application programming interface (Application Programming Interface, API) carries out Android phone equipment.Wherein comprise forbidding and a series of device management strategies such as camera (providing from android system 4.0 version) are provided.
3. pair Android authority skeleton code makes amendment, realizes a kind of tactful implementation framework for different application, and such cellphone subscriber can granted rights or cancel authority selectively.
But be studied although above various method calls authority from different aspect application programs cameras, the authority being all confined to application program judges, the security threat scope that can tackle is narrow.In addition, all agreeing to or all refusal can be selected owing to only having the judgement of authority, therefore only by judging that the mode of authority selects whether set up applications, and cannot manage calling of camera.There is very large drawback in this traditional authorization policy pattern, and the rights management policy of this extensive style cannot meet our demand in a lot of scene.
Summary of the invention
The invention provides a kind of camera and call right management method and equipment, to solve in prior art the technical matters that effectively cannot manage camera flexibly and call.
First a kind of camera of the present invention calls right management method, comprising:
In system initialization process, create camera call relevant system property and assignment;
When there is camera described in application call, reading described camera and calling relevant system property, Authority Verification carried out to described application program and returns the result;
Described application program is made to operate described camera according to described the result.
Further, described method also comprises:
Call relevant system property to described camera to modify.
Further, describedly make described application program carry out operation according to described the result to described camera comprising:
When described the result is true time, described application program is made to call described camera;
When described the result is not true time, described application program is not made to call described camera.
Further, described method also comprises:
The operating strategy of described camera is set, utilizes described operating strategy to carry out Authority Verification to described application program.
Further, described operating strategy comprises:
One or more in the black and white lists of the usage time interval of described camera, the place to use of described camera, described application program, network remote Managed Solution.
On the other hand, the present invention also provides a kind of camera to call rights management unit, and described equipment comprises:
System property configuration module, calls relevant system property and assignment for creating camera in system initialization process;
Authority Verification module, for described in application call during camera, reads described camera and calls relevant system property, carry out Authority Verification and return the result to described application program;
Operational module, operates described camera according to described the result for making described application program.
Further, described equipment also comprises:
Modified module, is connected with described system property configuration module, modifies for calling relevant system property to described camera.
Further, described operational module also for:
Be true time at described the result, make described application program call described camera;
Be not true time at described the result, do not make described application program call described camera.
Further, described equipment also comprises:
Strategy setting module, is connected with described Authority Verification module, for arranging the operating strategy of described camera, makes described Authority Verification module utilize described operating strategy to carry out Authority Verification to described application program.
Further, described strategy setting module comprises for the operating strategy of the described camera arranged:
One or more in the black and white lists of the usage time interval of described camera, the place to use of described camera, described application program, network remote Managed Solution.
The present invention can from system framework layer and the design of Linux layer, control end is utilized to control the invoked procedure of Android camera and authorize, the original camera security of android system is promoted, add new protection at the invoked procedure of Android camera and can carry out using the authority of calling of camera to control, application program is reduced to the security threat of system platform from system level, and can carry out controlling to the camera resource of system and manage, thus ensure that the security of camera invoked procedure data, and effectively prevent privacy leakage.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the camera system structural representation of android system;
Fig. 2 is the step schematic diagram that a kind of camera of the embodiment of the present invention calls right management method;
Fig. 3 is the rights management mechanism service chart that a kind of camera of the embodiment of the present invention calls right management method;
Fig. 4 is the permissions list that a kind of camera of the embodiment of the present invention calls right management method;
Fig. 5 is the review mechanism code that a kind of camera of the embodiment of the present invention calls right management method;
Fig. 6 is the structural representation that a kind of camera of the embodiment of the present invention calls rights management unit.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Android hardware system invocation pattern is generally as follows: the api provided by the routine call ccf layer of application layer obtains the example of hardware, then calls linux kernel driving by JNI to C framework.Wherein, hardware normally camera (Camera) equipment of camera arrangement lower floor, for system inputting video data.The interface of camera arrangement to upper strata provides view finder, video record, and shooting photograph three functions, also have the interface of various control class.Camera arrangement provides the camera class in the interface of Java layer and local interface Java.
In Android, Camera system includes Camera driver layer, Camera hardware abstraction layer, AudioService, Camera local library, and the Java frame clsss of Camera and Java application layer calling Camera system, see Fig. 1.
First, Camera system belongs to a singleton pattern and calls.The android.hardware.Camera class that program is provided by Android framework visits camera service, may be used for the program of java application layer building camera and scanning class.Camera JNI is that the java class on upper strata provides local support, contain reverse calling Java transmission of information and data function, and the Camera of connection box rack-layer and lower floor serves.Camera service is an independent part, is one of typical local system service.
The camera Design Mode of android system uses singleton pattern, only has an example and this example to be easy to extraneous access with a class in guarantee system, thus the convenient control to example number save system resource.If a novel camera need be increased call authentication mechanism in the Camera class of system framework layer, carry out auditing and authorize, so, owing to only having for upper strata provides the various interfaces of exploitation in system framework layer, then cannot depart from application program create always operational static overall variable (namely can only produce the global variable in a program, and cannot use by other program).Clearly this is the needs that cannot reach storage data, and is exactly unsafe from the overall static variable of the angle of security.Therefore the system property of choice for use Android data can be preserved.When carrying out the assignment of system property when system initialization, the amendment of simultaneity factor attribute is sightless with reading application layer, so also has stronger security.Simultaneously; a supervisory routine is also needed to manage camera invoked procedure; for the protection of the security of mechanism; also must consider that program is called to the hiding interface needed system; need application program to be set to " android.uid.system " at this, become system-level application.
Therefore, first the embodiment of the present invention provides a kind of camera to call right management method, and see Fig. 2, the concrete steps of the present embodiment method comprise:
Step 201: create camera and call relevant system property and assignment in system initialization process.
See the camera rights management mechanism service chart of Fig. 3, in an application scenarios of the present embodiment, first can start in the process of initialization init.c in android system and use setprop to create attribute and reading system attribute " persist.sys.camera_prop ".
In addition, amendment can also be made to the system property of preserving authority.When needs amendment system camera calls authority, call setSystemProperty () function setup particular system attribute by it.This system property prefix must be persist.sys.
Step 202: when there is camera described in application call, reads described camera and calls relevant system property, carry out Authority Verification and return the result to described application program.
What can illustrate is, what the present embodiment can with the addition of one deck camera inside ccf layer calls review mechanism, in having application requests to obtain camera example, all need to audit, effectively protect and illegally call camera and prevent privacy leakage.Multiple camera calling rule can also be set to manage camera to prevent from illegally calling simultaneously.
Wherein, the interface that can be provided by ccf layer android.hardware.Camera by the application call of application layer obtains the instance variable of a camera.The camera class of android system all belongs to single routine Design Mode.Camera class the open () function of ccf layer is as returning example and comprising the function of operational hardware wherein.
When application requests invoke block rack-layer obtains the function open () of example, directly do not return example, then send request to the system supervisor PermissionManager in Fig. 3, when not obtaining the authority of supervisory routine feedback, function is in waiting status.
When system-level application camera rights management end CamManager receives the request of Authority Verification, this class of PermissionCHK can be opened, call the value of getSystemProperty () function reading system attribute wherein, obtain authority credentials, return to ccf layer camera class.
In addition, in an application scenarios of the present embodiment, also need to arrange the hardware management strategy of system, and utilize hardware management strategy application programs to carry out Authority Verification, utilize various suitable camera calling rule to manage camera to prevent from illegally calling.Such as, the switch of the authority of camera can be set, or according to the place to use of camera as set-point according to the usage time interval of camera, or the black and white lists built by the bag name of application program or network remote Managed Solution are as standard etc.The permissions list of PermissionChkHelper is see Fig. 4, and it can connect application layer and system cloud gray model storehouse, and provides authority to feed back to android.hardware.Camera.
When android system starts time, the setprop in the init.c in start-up course can carry out initialization to the camera permissions list of system, again will be automatically imported setting after start up system later, very convenient.The file placement location of system property is sightless for application layer, and the reading of system property is same for application layer with modification process is sightless.So just can ensure the security of the camera invoked procedure of system, especially data security.Can not adopt as SQLite database or file, store data by modification of program sharedPreference can be employed, the security of system cannot be ensured.
Step 203: make described application program operate described camera according to described the result.
When waiting for Authority Verification result, if when the stand-by period, the result that is overtime or that obtain was false, the function obtaining example will return sky, and application program cannot be called camera; And only have when at the appointed time obtaining the result of true in scope, application program just can obtain the example of the camera returned, and is utilized the webcam driver of JNI calling system by available camera example, carries out camera and calls.The code instance used is see Fig. 5.
Particularly, the application program of application layer obtains the example of operational camera, then calls linux kernel driving by JNI to C framework, view finder can be provided to the application on upper strata, video record, shooting photograph three functions, can also comprise the interface of various control class.
See Fig. 6, the embodiment of the present invention also provides a kind of camera to call rights management unit, comprising:
System property configuration module 301, calls relevant system property and assignment for creating camera in system initialization process;
Authority Verification module 302, for described in application call during camera, reads described camera and calls relevant system property, carry out Authority Verification and return the result to described application program;
Operational module 303, operates described camera according to described the result for making described application program.
Alternatively, equipment can also comprise: modified module (not shown), is connected with system property configuration module 301, modifies for calling relevant system property to camera.
Alternatively, operational module 303 can also be used for: be true time at described the result, makes described application program call described camera; Be not true time at described the result, do not make described application program call described camera.
Alternatively, equipment can also comprise: strategy setting module (not shown), being connected with Authority Verification module 302, for arranging the operating strategy of described camera, making described Authority Verification module 302 utilize described operating strategy to carry out Authority Verification to described application program.
Alternatively, described strategy setting module can comprise for the operating strategy of the described camera arranged: one or more in the black and white lists of the usage time interval of described camera, the place to use of described camera, described application program, network remote Managed Solution.
Visible, the camera provided in the embodiment of the present invention calls in right management method and equipment, can from system framework layer and the design of Linux layer, control end is utilized to control the invoked procedure of Android camera and authorize, the original camera security of android system is promoted, add new protection at the invoked procedure of Android camera and can carry out using the authority of calling of camera to control, application program is reduced to the security threat of system platform from system level, and can carry out controlling to the camera resource of system and manage, thus ensure that the security of camera invoked procedure data, and effectively prevent privacy leakage.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. camera calls a right management method, it is characterized in that, comprising:
In system initialization process, create camera call relevant system property and assignment;
When there is camera described in application call, reading described camera and calling relevant system property, Authority Verification carried out to described application program and returns the result;
Described application program is made to operate described camera according to described the result.
2. camera according to claim 1 calls right management method, it is characterized in that, described method also comprises:
Call relevant system property to described camera to modify.
3. camera according to claim 1 calls right management method, it is characterized in that, describedly makes described application program carry out operation according to described the result to described camera comprising:
When described the result is true time, described application program is made to call described camera;
When described the result is not true time, described application program is not made to call described camera.
4. camera according to any one of claim 1 to 3 calls right management method, it is characterized in that, described method also comprises:
The operating strategy of described camera is set, utilizes described operating strategy to carry out Authority Verification to described application program.
5. camera according to claim 4 calls right management method, it is characterized in that, described operating strategy comprises:
One or more in the black and white lists of the usage time interval of described camera, the place to use of described camera, described application program, network remote Managed Solution.
6. camera calls a rights management unit, it is characterized in that, described equipment comprises:
System property configuration module, calls relevant system property and assignment for creating camera in system initialization process;
Authority Verification module, for described in application call during camera, reads described camera and calls relevant system property, carry out Authority Verification and return the result to described application program;
Operational module, operates described camera according to described the result for making described application program.
7. camera according to claim 6 calls rights management unit, it is characterized in that, described equipment also comprises:
Modified module, is connected with described system property configuration module, modifies for calling relevant system property to described camera.
8. camera according to claim 6 calls rights management unit, it is characterized in that, described operational module also for:
Be true time at described the result, make described application program call described camera;
Be not true time at described the result, do not make described application program call described camera.
9. the camera according to any one of claim 6 to 8 calls rights management unit, it is characterized in that, described equipment also comprises:
Strategy setting module, is connected with described Authority Verification module, for arranging the operating strategy of described camera, makes described Authority Verification module utilize described operating strategy to carry out Authority Verification to described application program.
10. camera according to claim 9 calls rights management unit, it is characterized in that, described strategy setting module comprises for the operating strategy of the described camera arranged:
One or more in the black and white lists of the usage time interval of described camera, the place to use of described camera, described application program, network remote Managed Solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410471699.XA CN104268463A (en) | 2014-09-16 | 2014-09-16 | Method and device for managing calling authority of camera |
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| CN201410471699.XA CN104268463A (en) | 2014-09-16 | 2014-09-16 | Method and device for managing calling authority of camera |
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| CN104809384A (en) * | 2015-04-30 | 2015-07-29 | 惠州Tcl移动通信有限公司 | Method and system for quickly starting camera based on eyeprint identification as well as mobile terminal |
| CN105592039A (en) * | 2015-07-24 | 2016-05-18 | 中国银联股份有限公司 | Security equipment implementation system capable of setting authority, and implementation method thereof |
| CN106454728A (en) * | 2016-10-09 | 2017-02-22 | 广东欧珀移动通信有限公司 | Network control method and device for terminal application, and terminal |
| CN106959842A (en) * | 2016-01-08 | 2017-07-18 | 阿里巴巴集团控股有限公司 | A kind of information cuing method and device |
| CN109151169A (en) * | 2018-07-23 | 2019-01-04 | 努比亚技术有限公司 | Camera right management method, mobile terminal and computer readable storage medium |
| CN109446822A (en) * | 2018-09-30 | 2019-03-08 | 联想(北京)有限公司 | Right management method and system |
| CN109510895A (en) * | 2018-10-24 | 2019-03-22 | 惠州Tcl移动通信有限公司 | Method, mobile terminal and the storage medium that mobile terminal control fitting works |
| CN109905389A (en) * | 2019-02-21 | 2019-06-18 | 华勤通讯技术有限公司 | Method for controlling mobile terminal, device and computer readable storage medium |
| CN111147740A (en) * | 2019-12-27 | 2020-05-12 | 青岛海信智慧家居系统股份有限公司 | Method and device for controlling intelligent camera |
| CN116720172A (en) * | 2023-08-07 | 2023-09-08 | 四川神州行网约车服务有限公司 | Verification method and device for system permission, computer equipment and readable storage medium |
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| CN104809384B (en) * | 2015-04-30 | 2018-04-06 | 惠州Tcl移动通信有限公司 | Method, system and the mobile terminal that camera based on eyeprint identification quickly starts |
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| CN109151169A (en) * | 2018-07-23 | 2019-01-04 | 努比亚技术有限公司 | Camera right management method, mobile terminal and computer readable storage medium |
| CN109446822A (en) * | 2018-09-30 | 2019-03-08 | 联想(北京)有限公司 | Right management method and system |
| CN109446822B (en) * | 2018-09-30 | 2022-07-26 | 联想(北京)有限公司 | Authority management method and system |
| CN109510895A (en) * | 2018-10-24 | 2019-03-22 | 惠州Tcl移动通信有限公司 | Method, mobile terminal and the storage medium that mobile terminal control fitting works |
| CN109905389A (en) * | 2019-02-21 | 2019-06-18 | 华勤通讯技术有限公司 | Method for controlling mobile terminal, device and computer readable storage medium |
| CN111147740A (en) * | 2019-12-27 | 2020-05-12 | 青岛海信智慧家居系统股份有限公司 | Method and device for controlling intelligent camera |
| CN116720172A (en) * | 2023-08-07 | 2023-09-08 | 四川神州行网约车服务有限公司 | Verification method and device for system permission, computer equipment and readable storage medium |
| CN116720172B (en) * | 2023-08-07 | 2024-01-30 | 四川神州行网约车服务有限公司 | Verification method and device for system permission, computer equipment and readable storage medium |
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