CN104091119B - The guard method of a kind of mobile terminal and its data, protection system - Google Patents
The guard method of a kind of mobile terminal and its data, protection system Download PDFInfo
- Publication number
- CN104091119B CN104091119B CN201410242670.4A CN201410242670A CN104091119B CN 104091119 B CN104091119 B CN 104091119B CN 201410242670 A CN201410242670 A CN 201410242670A CN 104091119 B CN104091119 B CN 104091119B
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- Prior art keywords
- screen
- mobile terminal
- lock
- password file
- file
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Classifications
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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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
-
- 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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
Abstract
The invention discloses the guard method of a kind of mobile terminal and its data, protection system, methods described is included in when detecting the operational motion to screen-lock password file, judges whether screen is in the lock state；When judging that the screen is in the lock state, the user data of mobile terminal is protected according to default safeguard measure.By the above-mentioned means, the present invention can prevent the user data of mobile terminal from leaking, the safety of user data is effectively protected.
Description
Technical field
The present invention relates to communication terminal technology field, a kind of guard method more particularly to mobile terminal and its data,
Protection system.
Background technology
With the fast development of smart mobile phone, the function of smart mobile phone is more and more, gradually replaces non-smart mobile phone
And as the main flow in communicating terminal market, attract more consumers to buy.At present, the function of smart mobile phone gradually becomes
To in the function achieved by PC, the application field that this allows for smart mobile phone is more and more extensive, such as user is usual
The mail transmission/reception of routine work, shopping of surfing the Net, shooting etc. can be carried out using smart mobile phone, this allows for being stored with smart mobile phone
Substantial amounts of user's significant data, and these data are once illegally accessed or leaked, it is likely that great damage can be brought to user
Lose, cause negative consequence.
Existing smart mobile phone generally all has screen locking function, and user can select the mode that gesture unlocks or password unlocks
Screen is locked, i.e., local user can set the unlocking pin or unblock gesture of the screen only known in person, enter
To need to input correct unlocking pin or unblock gesture during the desktop for entering smart mobile phone can enter, and prevent from illegally using whereby
Family enters smart mobile phone desktop, and then obtains the data of the inside, protects secure user data to a certain extent.
However, the cryptogam of the encryption of gesture unblock or password unblock can be deleted by violence, disabled user exists
Can not be by being unlocked to screen after acquisition mobile phone, but the cryptogam is directly deleted, after cryptogam is deleted
Disabled user can be directly entered the desktop of mobile phone, and thus the personal data of local user are just possible to be compromised, user
Personal data face safe threat.
The content of the invention
The present invention solves the technical problem of guard method, the protection system for providing a kind of mobile terminal and its data
System, can prevent the user data of mobile terminal from leaking, and effectively protect the safety of user data.
In order to solve the above technical problems, one aspect of the present invention is：A kind of mobile terminal data is provided
Guard method, it is included in when detecting the operational motion to screen-lock password file, judges whether screen is in the lock state；When sentencing
When the screen that breaks is in the lock state, the user data of mobile terminal is protected according to default safeguard measure.
Wherein, the step of default safeguard measure of the basis is protected to the user data of mobile terminal includes：Make shifting
Dynamic terminal factory reset, to delete the user data of the mobile terminal.
Wherein, it is described when detecting the operational motion to screen-lock password file, judge whether screen is in the lock state
The step of include：The change of the screen-lock password file is monitored by file change informing mechanism, the screen locking is close when monitoring
When code file changes, the operational motion to the screen-lock password file is as detected；Judge screen whether in locking
State.
Wherein, it is described the screen-lock password file is monitored by file change informing mechanism change the step of include：It is logical
That crosses the file change informing mechanism monitoring screen-lock password file is deleted or modified event, literary when monitoring the screen-lock password
When event is deleted or modified in part, the screen-lock password file changes.
Wherein, it is described to judge that the step of whether screen is in the lock state includes：Judge the kernel institute of the mobile terminal
The mark of the record mobile terminal released state of setting is that screen is in the lock state or screen is in released state.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of mobile terminal data is provided
Protection system, including：Judge module, for when detecting the operational motion to screen-lock password file, whether judging screen
It is in the lock state；Processing module, for when judging that the screen is in the lock state, according to default safeguard measure to movement
The user data of terminal is protected.
Wherein, the processing module is used to make mobile terminal factory reset, to delete the user of the mobile terminal
Data.
Wherein, the judge module includes：Monitoring unit, it is close for monitoring the screen locking by file change informing mechanism
The change of code file, when monitoring the screen-lock password file and changing, is as detected to the screen-lock password file
Operational motion；Judging unit, for judging whether screen is in the lock state.
Wherein, the monitoring unit be used for by file change informing mechanism monitor the screen-lock password file deletion or
Modification event, when monitoring the screen-lock password file event being deleted or modified, the screen-lock password file becomes
Change；The judging unit is used to judge that the mark of the record mobile terminal released state set by the kernel of the mobile terminal to be
Screen is in the lock state or screen is in released state.
In order to solve the above technical problems, another technical scheme that the present invention uses is：A kind of mobile terminal is provided, including
The protection system of any of the above-described.
The beneficial effects of the invention are as follows：It is different from the situation of prior art, the guard method of mobile terminal data of the present invention
In, when detecting the operational motion of screen-lock password file, judge whether screen is in the lock state, locked when judging that screen is in
When determining state, illustrate screen-lock password file probably by illegal operation so that mobile terminal is possible to illegally be entered, now
The user data of mobile terminal is protected according to predetermined safeguard measure, can thus prevent user data from leaking, have
The safety of effect protection user data.
Brief description of the drawings
Fig. 1 is the flow chart of the embodiment of guard method one of mobile terminal data of the present invention；
Fig. 2 is in the embodiment of guard method one of mobile terminal data of the present invention, is being detected to screen-lock password file
Operational motion when, judge the flow chart whether screen is in the lock state；
Fig. 3 is the structural representation of the embodiment of protection system one of mobile terminal data of the present invention；
Fig. 4 is the structural representation of another embodiment of protection system of mobile terminal data of the present invention.
Embodiment
Below in conjunction with drawings and embodiments, the present invention is described in detail.
Refering to Fig. 1, in the embodiment of guard method one of mobile terminal data of the present invention, comprise the following steps：
Step S101：When detecting the operational motion to screen-lock password file, judge whether screen is in the lock state.
After user is provided with unlocking pin or unblock gesture, mobile terminal system can generate password unblock or gesture unblock
Encryption cryptogam, i.e. screen-lock password file.The screen-lock password file is typically to be stored in data/system/
In gesture.key or data/system/password.key.Screen-lock password file can be deleted by violence, once deleted
Remove, then screen need not can be unlocked can enter mobile terminal.
In present embodiment, detect whether the operational motion to screen-lock password file in real time, the operational motion include pair
Screen-lock password file such as is deleted or modified at the operation, wherein modification operation is, for example, write operation to screen-lock password file, read
The operation of the content in screen-lock password file is crossed or deleted in extract operation.When detecting the operational motion to screen-lock password file,
Now judge whether screen is in the lock state.
Step S102：When judging that screen is in the lock state, the number of users according to default safeguard measure to mobile terminal
According to being protected.
Judged by the locking to screen or released state, to judge to be to the operational motion of screen-lock password file
It is no to be carried out for validated user.When judging that screen is in the lock state, illustrate that modification or deletion to screen-lock password file etc. are grasped
Work action occurs in the case where screen is in the lock state, and thus illustrates that modification or deletion to screen-lock password file etc. operate
It is probably greatly that disabled user is being carried out, rather than the machine validated user is being carried out, i.e., mobile terminal may fall into disabled user
In hand, and disabled user attempts screen-lock password file is deleted or modified to enter in mobile terminal by violence.Therefore, in order to keep away
The user data exempted from mobile terminal is stolen by disabled user, causes the negative consequence to the machine validated user, present embodiment
In, the user data of mobile terminal is protected according to default safeguard measure.I.e. once detecting that screen is in the lock state
When screen-lock password file be deleted or modification, the user data of mobile terminal is now protected according to default safeguard measure, thus
It can prevent user data from leaking, effectively to protect secure user data.
Wherein, in a preferred embodiment of this invention, safeguard measure is preset to make mobile terminal factory reset.That is root
The step of being protected according to default safeguard measure to the user data of mobile terminal be specially：Mobile terminal is set to recover to dispatch from the factory to set
Put, to delete the user data of mobile terminal.When screen-lock password file is maliciously cracked, directly mobile terminal is recovered to dispatch from the factory to set
Put, to cause the user data of mobile terminal to be all formatted, so as to prevent user data from leaking.
In other embodiments, safeguard measure can also directly delete user data, or user data is entered
Row encryption, hide processing etc..
Wherein, user data includes short message, associated person information, log, picture, video and card data is locally stored
Middle one or more, can also include other user data, such as log-on message (such as QQ, the wechat of mail, application program
Log-on message) etc..The machine validated user can selectively be protected according to the importance of information to important information.
Wherein, in a preferred embodiment of this invention, realized by establishing file monitor mechanism to screen-lock password file
Monitoring in real time, to monitor the change of screen-lock password file, so as to can detect that the operational motion to screen-lock password file.
By taking the Android mobile terminal of the Android operation system based on linux kernel as an example, specifically, refering to Fig. 2,
When detecting the operational motion to screen-lock password file, judge in the step of whether screen is in the lock state, including it is as follows
Step：
Step S201：The change of screen-lock password file is monitored by file change informing mechanism (inotify), when monitoring
When screen-lock password file changes, the operational motion to screen-lock password file is as detected.
Specifically, event is deleted or modified by inotify monitoring screen-lock password files.Inotify is a Linux
Interior nuclear properties, for monitoring file operation, such as the operation such as reading, write-in and establishment.In present embodiment, inotify prison
Control process is that screen-lock password file is, for example, data/system/gesture.key or data/system/password.key,
Inotify analysis monitoring listed files, data/system/gesture.key or data/ is obtained in listed files is monitored
System/password.key files, so that by Linux inotify_add_watch interfaces to data/system/
Gesture.key or data/system/password.key files are monitored, and Linux select systems call the task that allows
Obstruction waits.
When inotify, which monitors screen-lock password file, to change, the operation to screen-lock password file is as detected
Action.And screen-lock password file changes, in particular to screen-lock password file is deleted or changed, i.e., it ought monitor screen locking
When event is deleted or modified in cryptogam, screen-lock password file changes, and now select systems, which are called, returns, and reads
And event is analyzed, it thus can be judged as detecting the operational motion to screen-lock password file.
Step S202：Judge whether screen is in the lock state.
Wherein, judge that the step of whether screen is in the lock state includes：Judge the note set by the kernel of mobile terminal
The mark of record mobile terminal released state is that screen is in the lock state or screen is in released state.
The mark of the released state of the screen of mobile terminal is the variable in kernel, is in locking shape for recording screen
State is in released state.Wherein, this is masked as representing that screen is in released state during True, and this is masked as False
When represent screen be in the lock state, original state False.
When detecting the operational motion to screen-lock password file, the mark of released state is now read, that is, reads variable
Value, to judge that the mark of released state is that screen is in the lock state or screen is in released state, work as released state
When being masked as Ture, then judge that screen is in released state, when released state is when being masked as False, then judge screen
It is in the lock state.Therefore, when detecting the operational motion to screen-lock password file, False is masked as when released state
When, make mobile terminal factory reset, to prevent user data from leaking, when released state is when being masked as Ture, illustrate pair
The operational motion of screen-lock password file is likely to be the progress of the machine validated user, now carries out the monitoring of next round.
Wherein, when screen is in released state, released state is masked as Ture, so as to the machine validated user again
Unlocking pin or unblock gesture are set.
By the guard method of the mobile terminal data of the present invention, detected under being in the lock state in screen to screen locking
During the operational motion of cryptogam, i.e., user data of mobile terminal is protected according to default safeguard measure, such as make movement
Terminal factory reset, either directly delete the user data of mobile terminal or user data is encrypted, covert
Reason etc., to prevent user data from leaking, so as to effectively protect the safety of user data.
Refering to Fig. 3, in the embodiment of protection system one of mobile terminal data of the present invention, wherein the protection system is used for
The user data of mobile terminal is protected according to the guard method of the respective embodiments described above, it includes the He of judge module 301
Processing module 302.Wherein, judge module 301 is used for when detecting the operational motion to screen-lock password file, judges that screen is
It is no to be in screen lock state；Processing module 302 is used for when judging that screen is in the lock state, according to default safeguard measure to movement
The user data of terminal is protected.
The operation such as be deleted or modified to screen-lock password file is primarily referred to as to the operational motion of screen locking file.Judge module
301 when the operation such as being deleted or modified, judge whether screen is in the lock state detecting to screen-lock password file, to judge
This is deleted or modified whether operation is that the machine validated user is carried out.When judge module 301 judges that screen is in the lock state, say
The operations such as bright modification or deletion to screen-lock password file are greatly probably that disabled user is being carried out, now processing module 302
The user data of mobile terminal is protected according to default safeguard measure.Specifically, processing module 302 is used in judge module
301 when judging that screen is in the lock state, and makes mobile terminal factory reset, to delete the user data of mobile terminal, by
This can prevent user data from leaking, and effectively protect the safety of user data.
Certainly, in other embodiments, default safeguard measure can also directly delete user data, or to user data
The processing such as it is encrypted, hides.
Wherein, user data includes short message, associated person information, log, picture, video and card data is locally stored
Middle one or more, can also include other user data, such as log-on message (such as QQ, the wechat of mail, application program
Log-on message) etc..The machine validated user can selectively be protected according to the importance of information to important information.
Refering to Fig. 4, in another embodiment of protection system of mobile terminal data of the present invention, by establishing file monitor machine
System realizes the real-time monitoring to screen-lock password file, close to screen locking so as to can detect that to monitor the change of screen-lock password file
The operational motion of code file.Specifically, judge module 301 includes monitoring unit 3011 and judging unit 3012.Wherein, monitoring is single
Member 3011 is used for the change that screen-lock password file is monitored by file change informing mechanism (inotify), close when monitoring screen locking
When code file changes, the operational motion to screen-lock password file is as detected.Wherein, the change of screen-lock password file is
Refer to whether screen-lock password file there are the Action Events such as modification or deletion.When monitoring unit 3011 monitors screen-lock password file hair
During changing, that is, monitor screen-lock password file and modification or the event deleted occurs, now namely detect to screen-lock password text
The operational motion of part.Judging unit 3012 judges whether screen is in the lock state, specifically, for judging in mobile terminal
The mark of record mobile terminal released state set by core is that screen is in the lock state or screen is in released state.
When the mark for judging record mobile terminal released state is that screen is in the lock state, processing module 302 is according to default protection
Measure is protected to the user data of mobile terminal, thus can effectively protect the safety of user data.
The present invention also provides an embodiment of mobile terminal, and it includes the protection system of any of the above-described embodiment.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, it is included within the scope of the present invention.
Claims (10)
- A kind of 1. guard method of mobile terminal data, it is characterised in that including：When detecting the operational motion to screen-lock password file, judge whether screen is in the lock state；When judging that the screen is in the lock state, the user data of mobile terminal is protected according to default safeguard measure Shield.
- 2. according to the method for claim 1, it is characterised in thatThe step of default safeguard measure of the basis is protected to the user data of mobile terminal includes：Make mobile terminal factory reset, to delete the user data of the mobile terminal.
- 3. according to the method for claim 1, it is characterised in thatIt is described when detecting the operational motion to screen-lock password file, judge that the step of whether screen is in the lock state is wrapped Include：The change of the screen-lock password file is monitored by file change informing mechanism, is sent out when monitoring the screen-lock password file During changing, the operational motion to the screen-lock password file is as detected；Judge whether screen is in the lock state.
- 4. according to the method for claim 3, it is characterised in thatIt is described the screen-lock password file is monitored by file change informing mechanism change the step of include：Event is deleted or modified by what file change informing mechanism monitored the screen-lock password file, when monitoring the screen locking When event is deleted or modified in cryptogam, the screen-lock password file changes.
- 5. according to the method for claim 3, it is characterised in thatIt is described to judge that the step of whether screen is in the lock state includes：The mark for judging the record mobile terminal released state set by the kernel of the mobile terminal is that screen is in locking shape State or screen are in released state.
- A kind of 6. protection system of mobile terminal data, it is characterised in that including：Judge module, for when detecting the operational motion to screen-lock password file, judging whether screen is in the lock state；Processing module, for when judging that the screen is in the lock state, the use according to default safeguard measure to mobile terminal User data is protected.
- 7. protection system according to claim 6, it is characterised in thatThe processing module is used for when the judge module judges that the screen is in the lock state, and recovers mobile terminal Factory is set, to delete the user data of the mobile terminal.
- 8. protection system according to claim 6, it is characterised in that the judge module includes：Monitoring unit, it is described when monitoring for monitoring the change of the screen-lock password file by file change informing mechanism When screen-lock password file changes, the operational motion to the screen-lock password file is as detected；Judging unit, for judging whether screen is in the lock state.
- 9. protection system according to claim 8, it is characterised in thatThe monitoring unit is used to event be deleted or modified by the file change informing mechanism monitoring screen-lock password file, When monitoring the screen-lock password file event being deleted or modified, the screen-lock password file changes.
- 10. protection system according to claim 8, it is characterised in thatThe judging unit is used to judge the mark of the record mobile terminal released state set by the kernel of the mobile terminal It is that screen is in the lock state or screen is in released state.
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| CN201410242670.4A CN104091119B (en) | 2014-06-03 | 2014-06-03 | The guard method of a kind of mobile terminal and its data, protection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410242670.4A CN104091119B (en) | 2014-06-03 | 2014-06-03 | The guard method of a kind of mobile terminal and its data, protection system |
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| CN104091119B true CN104091119B (en) | 2017-12-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105678171A (en) * | 2014-11-17 | 2016-06-15 | 中兴通讯股份有限公司 | Data processing method, device and mobile terminal |
| CN105426778A (en) * | 2015-11-18 | 2016-03-23 | 罗满清 | Information processing method and apparatus |
| CN105488429A (en) * | 2015-11-25 | 2016-04-13 | 华勤通讯技术有限公司 | Mobile terminal and data security protection method thereof |
| CN105808992A (en) * | 2016-03-14 | 2016-07-27 | 宇龙计算机通信科技(深圳)有限公司 | Data reading method and device and terminal |
| CN106973155A (en) * | 2017-03-22 | 2017-07-21 | 清华大学合肥公共安全研究院 | A kind of mobile phone personal information security management method |
| CN110113475A (en) * | 2019-04-30 | 2019-08-09 | 大连睿海信息科技有限公司 | Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement |
| US20200387633A1 (en) * | 2019-06-07 | 2020-12-10 | Lenovo (Singapore) Pte. Ltd. | Apparatus, method, and program product for securing personal information in a file |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7373516B2 (en) * | 2004-08-19 | 2008-05-13 | International Business Machines Corporation | Systems and methods of securing resources through passwords |
| CN1968467A (en) * | 2006-06-21 | 2007-05-23 | 华为技术有限公司 | Mobile terminal and terminal user information protection method |
| CN101216867A (en) * | 2007-01-05 | 2008-07-09 | 黄承雄 | A logging-on process cipher protection method by means of background synchronization |
| CN101616495A (en) * | 2008-06-23 | 2009-12-30 | 网秦无限（北京）科技有限公司 | The method and system of individual privacy in the protection mobile phone |
| CN102236751A (en) * | 2010-04-22 | 2011-11-09 | 研华股份有限公司 | Computer system with safety lock and method for implementing safety lock |
| CN103595851A (en) * | 2012-08-16 | 2014-02-19 | 联芯科技有限公司 | Personal-information leakage-proof method for mobile terminal and mobile terminal |
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