CN109543436A - A kind of improved method about Android device encryption flow user experience - Google Patents
A kind of improved method about Android device encryption flow user experience Download PDFInfo
- Publication number
- CN109543436A CN109543436A CN201811456737.9A CN201811456737A CN109543436A CN 109543436 A CN109543436 A CN 109543436A CN 201811456737 A CN201811456737 A CN 201811456737A CN 109543436 A CN109543436 A CN 109543436A
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- China
- Prior art keywords
- encryption
- vold
- decrypt
- animation
- trigger
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G06F21/602—Providing cryptographic facilities or services
-
- 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
- G06F21/604—Tools and structures for managing or administering access control systems
Abstract
The invention belongs to field of information security technology more particularly to a kind of improved methods about Android device encryption flow user experience.Purport is to solve the problems, such as that existing Android device will lead to first time boot animation and be only put into half in the asynchronism for starting minimum framework services and is just interrupted.Main technical schemes include: S1, when starting minimum framework services judge whether system property Vold.decrypt value is equal to trigger_restart_min_framework, are to execute S2, otherwise execute S1；S2, an encryption prompt animation is loaded by bootanimation thread；S3, minimum framework services starting finish, and the interface CryptKeeper occur and then execute S4, otherwise execute S2；S4, animation exit；S5, data encryption is executed, restarts system, encryption terminates.
Description
Technical field
The present invention relates to field of information security technology more particularly to a kind of android system encryption methods.
Background technique
With the continuous development of Android (Android) operating system, the application range of android system is constantly expanded
Exhibition.Therefore in order to protect the developer of Android application program and the legitimate rights and interests of user, need to Android program into
Row security protection, the program that Java language is write are easy to inversely be cracked.Android system is faced in secure context
Main problem privacy.For current Android device in the manual ciphering process of user, interface is black a piece of, and user will be black
Interface wait clock more than 1 point, this time is the process that system framework is restarted, if user does not know that equipment is being restarted
If framework services, it can think that machine is died, and restarts by force, ciphering process is caused to fail.The equipment encrypted is in booting or again
During opening, needs to start a minimum framework services and to input password for user, in this minimum framework services start-up course,
Default can load a boot animation, work as password match, and in entire framework services restarting process, and it is dynamic to need to load primary booting
It draws, boot animation same in this way is loaded with twice, causes to mislead to user.And start the asynchronism meeting of minimum framework services
Cause first time boot animation to be only put into half to be just interrupted, user experience is very poor.
Summary of the invention
Present invention aims at solve existing Android device to will lead to for the first time in the asynchronism for starting minimum framework services
Boot animation is only put into the problem of half is just interrupted.
The technical solution adopted by the invention is as follows:
A kind of improved method about Android device encryption flow user experience, which comprises the steps of:
Step S1, pre-encrypt device context information is obtained；
Step S2, the service of main classification is closed；
Step S3, data subregion, carry tmpfs file system are unloaded；
Step S4, judge whether system property Vold.decrypt value is equal to trigger_ when starting minimum framework services
Restart_min_framework is to then follow the steps S5, no to then follow the steps S4；
Step S5, an encryption prompt animation is loaded by bootanimation thread；
Step S6, minimum framework services starting finishes, and the interface CryptKeeper occurs and thens follow the steps S7, otherwise executes
Step S5；
Step S7, animation exits；
Step S8, data encryption is executed, restarts as vold.decrypt=trigger_restart_framework and is
System, encryption terminate.
In above-mentioned technical proposal, ro.crypto.state attribute value is " encrypted " when the equipment encrypted is restarted,
It is " trigger_default_encryption " that vold.decrypt attribute value is arranged simultaneously, by reading attributes "
The value of vold.decrypt " come determine play which kind of animation, when vold.decrypt value be " trigger_default_
Encryption " just plays user encryption and prompts animation, after encrypting the success of disk carry, the value of attribute vold.decrypt
For " trigger_restart_framework plays boot animation at this time.
In conclusion by adopting the above-described technical solution, this reality advantageous effect of the invention is:
1. the process interface that Android device system framework is restarted can provide user's prompt when can be black 1 minute or so dynamic
It draws.
2. it is dynamic to provide another booting during the equipment encrypted inputs password match in booting or restarting process
It draws.
3. the asynchronism for starting minimum framework services is interrupted without it will lead to first time boot animation and be only put into half.
Detailed description of the invention
Fig. 1 is the flow chart of the improved method of Android device encryption flow user experience of the present invention.
Fig. 2 is the interface CryptKeeper.
Fig. 3 is that user prompts animation or the interface mp4.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates below with reference to Fig. 1 to the present invention.
The invention solves two problems:
One, for current Android device in the manual ciphering process of user, interface is black a piece of, unfriendly！User will be
Black interface waits clock more than 1 point, this time is the process that system framework is restarted, if user does not know equipment
If restarting framework services, it can think that machine is died, and restarts by force, ciphering process is caused to fail.
Two, the equipment encrypted in booting or restarting process, need to start a minimum framework services come it is defeated for user
Enter password, in this minimum framework services start-up course, default can load a boot animation, work as password match, entire frame
During server resets, and need to load a boot animation, boot animation same in this way is loaded with twice, is caused to user
It misleads.And the asynchronism for starting minimum framework services will lead to first time boot animation and only be put into half and is just interrupted, user
It experiences very poor.
Three, all there is this poor user experience in the Android device of market such as millet, MotoZ, three magnitudes.About adding
Improvement in terms of close process and carry process user experience does not occur also at present.
Solution core element:
1, user prompts animation or mp4, following Fig. 3 when the Android device encryption of the design image:
2, when starting minimum framework services, when system property Vold.decrypt value is equal to trigger_restart_
When min_framework, load user prompts animation.
3, minimum framework services starting finishes, and when there is the interface CryptKeeper, following Fig. 2: user prompts animation play
It finishes；
4, ro.crypto.state attribute value is " encrypted " when the equipment encrypted is restarted, and is arranged simultaneously
Vold.decrypt attribute value is " trigger_default_encryption ".Pass through reading attributes " vold.decrypt "
Value determines which kind of animation played, and user encryption prompt is just played if it is " trigger_default_encryption " dynamic
It draws.After encrypting the success of disk carry, the value of attribute vold.decrypt is " trigger_restart_framework, at this time
Play boot animation.
This programme work is as follows:
1, user passes through setting --- safety --- encryption equipment interface when encrypting equipment manually, can trigger system property
A series of variations of vold.decrypt (decryption), the change procedure of value are as follows: Trigger_shutdown_framework---
Trigger_post_fs_data
---trigger_restart_min_framework.In init.rc, the variation of Vold.decrypt can be triggered
System is reacted accordingly, and as vold.decrypt=trigger_restart_min_framework, system will start one
Minimum framework services are used to show the interface CryptKeeper.
2, system needs to do following thing before restarting minimum framework services:
1. obtain storage encrypts related contextual information with equipment.
2. calculating instrument size to be encrypted, encryption key is taken, the service of main classification is closed.
3. unloading data subregion, carry tmpfs. creates file system.
4. initialization encryption contextual information obtains key according to passwd and salt value etc., two parts of key letters are stored
Breath, restarts min_framework.
3, in the above process, device screen is to go complete night, and the duration is longer.With amount of user data
Increase, the time can be longer, user experience and difference.Therefore in minimum framework services start-up course, pass through bootanimation line
Journey prompts animation to load an encryption, until the interface CryptKeeper occurs.User would not feel there is exception.
The specific embodiment of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application protection scope therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, under the premise of not departing from technical scheme design, various modifications and improvements can be made, these belong to this
The protection scope of application.
Claims (2)
1. a kind of improved method about Android device encryption flow user experience, which comprises the steps of:
Step S1, pre-encrypt device context information is obtained；
Step S2, the service of main classification is closed；
Step S3, data subregion, carry tmpfs file system are unloaded；
Step S4, judge whether system property Vold.decrypt value is equal to trigger_ when starting minimum framework services
Restart_min_framework is to then follow the steps S5, no to then follow the steps S4；
Step S5, an encryption prompt animation is loaded by bootanimation thread；
Step S6, minimum framework services starting finishes, and the interface CryptKeeper occurs and thens follow the steps S7, no to then follow the steps
S5；
Step S7, animation exits；
Step S8, data encryption is executed, restarts system as vold.decrypt=trigger_restart_framework,
Encryption terminates.
2. a kind of improved method about Android device encryption flow user experience according to claim 1, feature exist
In ro.crypto.state attribute value is " encrypted " when the equipment encrypted is restarted, while vold.decrypt is arranged
Attribute value is " trigger_default_encryption ", and broadcasting is determined by the value of reading attributes " vold.decrypt "
Which kind of animation, when the value of vold.decrypt is that " trigger_default_encryption " just the prompt of broadcasting user encryption is dynamic
Draw, after encrypting the success of disk carry, the value of attribute vold.decrypt is " trigger_restart_framework, at this time
Play boot animation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456737.9A CN109543436B (en) | 2018-11-30 | 2018-11-30 | Improved method for android device encryption process user experience |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456737.9A CN109543436B (en) | 2018-11-30 | 2018-11-30 | Improved method for android device encryption process user experience |
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| Publication Number | Publication Date |
|---|---|
| CN109543436A true CN109543436A (en) | 2019-03-29 |
| CN109543436B CN109543436B (en) | 2022-09-16 |
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| CN201811456737.9A Active CN109543436B (en) | 2018-11-30 | 2018-11-30 | Improved method for android device encryption process user experience |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388054A (en) * | 2008-09-22 | 2009-03-18 | 浪潮电子信息产业股份有限公司 | Method for saving Linux startup scripts and configuration file by NVRAM to implement system encrypt |
| CN103150516A (en) * | 2013-03-01 | 2013-06-12 | 中科创达软件股份有限公司 | Method and device for enabling Android system equipment to enter temporary mode |
| CN108196898A (en) * | 2016-12-08 | 2018-06-22 | 中兴通讯股份有限公司 | System remapping method, device and electronic equipment |
-
2018
- 2018-11-30 CN CN201811456737.9A patent/CN109543436B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388054A (en) * | 2008-09-22 | 2009-03-18 | 浪潮电子信息产业股份有限公司 | Method for saving Linux startup scripts and configuration file by NVRAM to implement system encrypt |
| CN103150516A (en) * | 2013-03-01 | 2013-06-12 | 中科创达软件股份有限公司 | Method and device for enabling Android system equipment to enter temporary mode |
| CN108196898A (en) * | 2016-12-08 | 2018-06-22 | 中兴通讯股份有限公司 | System remapping method, device and electronic equipment |
Non-Patent Citations (1)
| Title |
|---|
| 喻伟 等: "物联网下的信息安全", 《中国高新科技》 * |
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| CN109543436B (en) | 2022-09-16 |
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