CN106452781A - Pre-decryption-based mobile terminal transparent encryption method - Google Patents
Pre-decryption-based mobile terminal transparent encryption method Download PDFInfo
- Publication number
- CN106452781A CN106452781A CN201610825474.9A CN201610825474A CN106452781A CN 106452781 A CN106452781 A CN 106452781A CN 201610825474 A CN201610825474 A CN 201610825474A CN 106452781 A CN106452781 A CN 106452781A
- Authority
- CN
- China
- Prior art keywords
- deciphering
- ciphertext
- file
- strong
- mobile terminal
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
Abstract
The invention discloses a pre-decryption-based mobile terminal transparent encryption method, and belongs to the technical field of mobile data anti-leakage. The method comprises the following steps: (1) initializing an Xposed framework; (2) traversing a file identifier; (3) pre-decrypting temporary file traversing; (4) pre-decrypting temporary file set update; (5) performing secondary decryption on a pre-decrypted temporary file subset; and (6) performing secondary strong encryption on a plaintext subset. In the pre-decryption-based mobile terminal transparent encryption method, transparent encryption and decryption functions are finished for a file system on the basis of an Xposed framework Hook technology, and a pre-decryption thought is added on the basis, so that the defect that the security of an application layer can only be ensured by a conventional transparent encryption technology for the mobile terminal is overcome; the transparent encryption performance is improved remarkably; and the overhead of an operation process of the file system is saved.
Description
Technical field
The invention mainly relates to mobile data anti-leak field, particularly a kind of mobile terminal based on pre- deciphering is transparent adds
Decryption method.
Background technology
As mobile terminal device function is become stronger day by day, increasing enterprise staff or will break away from office
Constraint, processes routine work affairs by mobile terminal device.However, enterprise's critical data extends to mobile terminal device,
So that mobile terminal data leakage become the new problem that enterprise faces, therefore mobile terminal transparent encryption technology meet the tendency of and
Raw.
So-called transparent encryption, refers to complete the encryption of file and decrypted in the case of user operation habits are not changed
Journey.When system monitoring to user is written and read operation to shielded file, operation will be decrypted to file, plaintext will be passed
Give application program.When system monitoring to user is to shielded end of file read-write operation, file will be encrypted again
Operation, ciphertext transmission storage device is stored.Whole process is closely related with the place environment of file, and environment is once more
Change, encryption process will be unable to complete, so as to ensure that the protection to specified file.
For this purpose, research worker proposes the data transparency encryption technology of two kinds of mobile terminals：Driving based on file system
Encryption technology and hook transparent encryption technology.Android operation system is operated in based on the driving encryption technology of file system
Inner nuclear layer, depends on the file system driver technology of Linux.File system driver is that file is located as a kind of equipment
A kind of virtual drive of reason.When file system driver detects user and certain suffix file is operated, this document is entered
Row encryption/decryption, so as to reach the effect of encryption.And the technical work of hook transparent encryption is tied in mobile terminal application layer
Close using Android api function and Hook message processing facility.By the Hook Technique of Java Hook, application program is monitored
Opening and preserving to file.When file is opened, first ciphertext is decrypted and reads in internal memory again, to ensure what application program was read
It is in plain text.When file is preserved, first the plaintext in internal memory is encrypted and is then written in disk.
However, mobile terminal data transparent encryption technology is at the early-stage, all there is certain asking in two kinds of transparent encryption technology
Topic.Driving encryption technology service behaviour based on file system is unstable, and the system for needing compiling user mobile terminal, general
Property is not strong, is not suitable for business data containment system.Hook transparent encryption technology highly versatile, but compare driving encryption skill
Art, file read-write is slow, poor-performing.
Content of the invention
It is an object of the invention to provide a kind of safe and efficient mobile terminal transparent encryption method based on pre- deciphering.
The technical solution for realizing the object of the invention is：A kind of mobile terminal transparent encryption method based on pre- deciphering,
For the client models of mobile terminal data encryption, the entity that transparent encryption process is related to is as follows：Strong ciphertext set M=
{ Mi }, pre- deciphering temporary file set P={ Pi } and in plain text set N={ Ni }, file set F={ Fi }, i=1,2,3 ..., tool
Body step is as follows：
(1) Xposed framework initialization：
Initialization Xposed framework, load document system Hook module；According to Xposed frame nature, realize
The Hook funcall of Android Runtime layer, initializes Hook functions of modules first, and arranges |input paramete for file change
Amount Fi；
(2) file identifier traversal：
Traversal file identifier, judges whether Fi belongs to strong ciphertext collection M；Fi byte stream is extracted, Hook module extracts 16
Check character, judges whether current variable Fi belongs to strong ciphertext set M, if it is not, then directly skipping Hook action scope, returns Fi byte
Flow to upper layer application；If so, 16 jurisdiction identifier are then extracted and real-time digital certificate verification is carried out, if present terminal does not conform to
Method, then return strong ciphertext status data to user；If legal, step (3) is entered；
(3) pre- deciphering temporary file traversal：
16 pre- deciphering deviants are extracted, pre- deciphering file verification is carried out to current Fi byte stream, if checking does not pass through, no
There is a ciphertext, then enter step (4)；If being verified, step (5) is directly entered；
(4) pre- deciphering temporary file collection updates：
If there is no a ciphertext, pre- deciphering is carried out to strong ciphertext Fi in current cache, and generates corresponding pre- deciphering
Temporary file；
(5) the pre- deciphering temporary file subset of secondary deciphering：
If being verified, there is a corresponding ciphertext, then extract pre- deciphering file and replace strong ciphertext Fi in caching；So
Afterwards, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer in plain text；
(6) the secondary strong encryption of plaintext subset：
When modification store document, first, 16 jurisdiction identifier are extracted and real-time digital certificate verification is carried out, if currently
Terminal is illegal, then no weight update data, directly returns former strong ciphertext；If legal, clear data is once encrypted, and carry out
Pre- deciphering file renewal；Then secondary strong encryption is carried out, and strong ciphertext is stored in tag memory.
Further, Xposed framework, load document system Hook module are initialized described in step (1)；According to
Xposed frame nature, realizes the Hook funcall in Android Runtime layer, initializes Hook functions of modules first,
And |input paramete is set for file variable Fi, specific as follows：
1) by covering primary/system/bin/app_process program, app_process is extended, control
Zygote process processed；
2) app_process is made to load this jar bag of XposedBridge.jar in start-up course, right so as to complete
The abduction of the Dalvik virtual machine of Zygote process and its establishment；
3) when android system starts, Zygote process loads XposedBridge, by mobile terminal document system
System read-write Method points to Native Native method XposedCallHandler by JNI method HookMethodNative, this
Method proceeds to this Java method of handleHookedMethod again and executes user-defined mobile terminal document system Hook
Function.
Further, the process of step (3) the pre- deciphering temporary file traversal is as follows：
16 pre- deciphering deviants are extracted, and pre- deciphering file verification is carried out to current document, if checking does not pass through, is not existed
Ciphertext, then carry out pre- deciphering, and generate corresponding pre- deciphering temporary file to the strong ciphertext in current cache；If checking is logical
Cross, there is a corresponding ciphertext, then extract pre- deciphering file and the strong ciphertext in caching is replaced, detailed process is as follows：
Pre- deciphering file verification：Whether set up, wherein pre_verification (i)
It is the signature for extracting 16 pre- deciphering deviants；If so, illustrate there is no a ciphertext, then to the strong ciphertext in current cache
Carry out pre- deciphering；Otherwise, there is a corresponding ciphertext, then extract pre- deciphering file and replace the strong ciphertext in caching.
Further, described in step (5), the secondary process for deciphering pre- deciphering temporary file subset is as follows：
Pre- deciphering temporary file traversal is verified, and there is a corresponding ciphertext, then extract pre- deciphering file and replace slow
Strong ciphertext in depositing；Then, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer in plain text, specifically
Process is as follows：
Secondary deciphering：Re_decrypt (Pi) → (i, N), Pi are to have verified that the file Fi word that there is pre- deciphering temporary file
Throttling, generates plaintext byte stream N by secondary deciphering and submits application layer to.
Compared with prior art, its remarkable advantage is the present invention：(1) transparent encryption safety：Using Xposed framework
Hook technology, primary by covering /system/bin/app_process program, app_process is extended, control
Zygote process so that the Hook Function of regulation is in the RUNTIME layer (android system third layer) of Android framework
Executed, solved the defect that mobile terminal conventional transparent encryption technology can only ensure application layer security；(2) transparent encryption
Energy：Using the pre- deciphering transparent encryption scheme of secondary deciphering, evade the decryption oprerations of high-performance loss, on proper mobile terminal
When encryption file is opened, simply secondary deciphering is only carried out, greatly improves transparent encryption technology performance on mobile terminals.
Description of the drawings
Fig. 1 is flow chart of the present invention based on the mobile terminal transparent encryption method of pre- deciphering.
Fig. 2 is system model figure of the present invention based on the mobile terminal transparent encryption method of pre- deciphering.
Specific embodiment
Below in conjunction with the accompanying drawings and implement example the present invention is described in further detail.Following examples are with skill of the present invention
Implemented under premised on art scheme, detailed embodiment and process is given, but protection scope of the present invention is not limited to down
The embodiment that states.
In conjunction with Fig. 1, mobile terminal transparent encryption method of the present invention based on pre- deciphering, for mobile terminal data encryption
Client models, the entity that transparent encryption process is related to is as follows：Strong ciphertext set M={ Mi }, pre- deciphering temporary file set P
={ Pi } and in plain text set N={ Ni }, file set F={ Fi }, i=1,2,3 ..., comprise the following steps that：
(1) Xposed framework initialization：
Initialization Xposed framework, load document system Hook module；According to Xposed frame nature, realize
The Hook funcall of Android Runtime layer, initializes Hook functions of modules first, and arranges |input paramete for file change
Amount Fi, specific as follows：
1) by covering primary/system/bin/app_process program, app_process is extended, control
Zygote process processed；
2) app_process is made to load this jar bag of XposedBridge.jar in start-up course, right so as to complete
The abduction of the Dalvik virtual machine of Zygote process and its establishment；
3) when android system starts, Zygote process loads XposedBridge, by mobile terminal document system
System read-write Method points to Native Native method XposedCallHandler by JNI method HookMethodNative, this
Method proceeds to this Java method of handleHookedMethod again and executes user-defined mobile terminal document system Hook
Function.
(2) file identifier traversal：
Traversal file identifier, judges whether Fi belongs to strong ciphertext collection M；Fi byte stream is extracted, Hook module extracts 16
Check character, judges whether current variable Fi belongs to strong ciphertext set M, if it is not, then directly skipping Hook action scope, returns Fi byte
Flow to upper layer application；If so, 16 jurisdiction identifier are then extracted and real-time digital certificate verification is carried out, if present terminal does not conform to
Method, then return strong ciphertext status data to user；If legal, step (3) is entered.
(3) pre- deciphering temporary file traversal：
16 pre- deciphering deviants are extracted, pre- deciphering file verification is carried out to current Fi byte stream, if checking does not pass through, no
There is a ciphertext, then enter step (4)；If being verified, step (5) is directly entered；
The process of the pre- deciphering temporary file traversal is as follows：
16 pre- deciphering deviants are extracted, and pre- deciphering file verification is carried out to current document, if checking does not pass through, is not existed
Ciphertext, then carry out pre- deciphering, and generate corresponding pre- deciphering temporary file to the strong ciphertext in current cache；If checking is logical
Cross, there is a corresponding ciphertext, then extract pre- deciphering file and the strong ciphertext in caching is replaced, detailed process is as follows：
Pre- deciphering file verification：Whether set up, wherein pre_verification (i)
It is the signature for extracting 16 pre- deciphering deviants；If so, illustrate there is no a ciphertext, then to the strong ciphertext in current cache
Carry out pre- deciphering；Otherwise, there is a corresponding ciphertext, then extract pre- deciphering file and replace the strong ciphertext in caching.
(4) pre- deciphering temporary file collection updates：
If there is no a ciphertext, pre- deciphering is carried out to strong ciphertext Fi in current cache, and generates corresponding pre- deciphering
Temporary file.
(5) the pre- deciphering temporary file subset of secondary deciphering：
If being verified, there is a corresponding ciphertext, then extract pre- deciphering file and replace strong ciphertext Fi in caching；So
Afterwards, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer in plain text；
The process that temporary file subset is deciphered in the secondary deciphering in advance is as follows：
Pre- deciphering temporary file traversal is verified, and there is a corresponding ciphertext, then extract pre- deciphering file and replace slow
Strong ciphertext in depositing；Then, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer in plain text, specifically
Process is as follows：
Secondary deciphering：Re_decrypt (Pi) → (i, N), Pi are to have verified that the file Fi word that there is pre- deciphering temporary file
Throttling, generates plaintext byte stream N by secondary deciphering and submits application layer to.
(6) the secondary strong encryption of plaintext subset：
When modification store document, first, 16 jurisdiction identifier are extracted and real-time digital certificate verification is carried out, if currently
Terminal is illegal, then no weight update data, directly returns former strong ciphertext；If legal, clear data is once encrypted, and carry out
Pre- deciphering file renewal；Then secondary strong encryption is carried out, and strong ciphertext is stored in tag memory.
Embodiment 1
The method for proposing for a better understanding of the present invention, chooses under a mobile office environment to secret data in enterprise
Transparent encryption and decryption event.
The present embodiment execute flow process as shown in figure 1, for mobile terminal data encryption client models, transparent encryption mistake
The entity that journey is related to is as follows：Strong ciphertext set M={ Mi }, pre- deciphering temporary file set P={ Pi } and in plain text set N=
{ Ni }, file set F={ Fi }, i=1,2,3 ..., comprise the following steps that：
Step 101：Initialization xposed framework, load document system hook module.Detailed process is as follows：
1) by covering primary/system/bin/app_process program, app_process is extended, control
Zygote process processed.
2) app_process is made to load this jar bag of XposedBridge.jar in start-up course, right so as to complete
The abduction of the Dalvik virtual machine of Zygote process and its establishment.
3) when android system starts, Zygote process loads XposedBridge, by mobile terminal document system
System read-write Method points to Native Native method XposedCallHandler by JNI method HookMethodNative, this
Method proceeds to this Java method of handleHookedMethod again and executes user-defined mobile terminal document system Hook
Function.
Step 102：Traversal file identifier, judges whether Fi belongs to strong ciphertext subset.Detailed process is as follows：
1) file identifier is traveled through, judges whether Fi belongs to strong ciphertext collection M.Fi byte stream is extracted, Hook module extracts 16
Bit check is accorded with, and judges whether current variable Fi belongs to strong ciphertext set M.
2) if current variable Fi is not belonging to strong ciphertext set M, Hook action scope directly being skipped, Fi byte stream is returned to upper
Layer application.
3) if current variable Fi belongs to strong ciphertext set M, 16 jurisdiction identifier are extracted and carries out real-time digital certificate
Certification,
4) if present terminal digital certificate authentication is illegal, strong ciphertext status data is returned to user.
5) if present terminal digital certificate authentication is legal, step 103 is entered.
Step 103：The pre- deciphering temporary file collection P of traversal, judges whether strong ciphertext belongs to P.Detailed process is as follows：
1) judge pre- deciphering file verification：Whether set up, wherein pre_
Verification (i) is the signature for extracting 16 pre- deciphering deviants.
2) if condition is set up, illustrate there is no a ciphertext, then pre- deciphering is carried out to the strong ciphertext in current cache；
3) if condition is false, there is a corresponding ciphertext, then extract pre- deciphering file and replace the strong ciphertext in caching.
Step 104：Decipher subset Fi in advance and real-time update deciphers temporary file collection P in advance.Detailed process is as follows：
Pre- deciphering is carried out to the strong ciphertext in current cache, and generates corresponding pre- deciphering temporary file.By once deciphered
Weak ciphertext resubmits file system cache area.
Step 105：Secondary deciphering is pre- to decipher temporary file subset, and generates plaintext object valuation object Fi, updates in plain text
Collection N.Detailed process is as follows：
Pre- deciphering temporary file traversal is verified, and there is a corresponding ciphertext, then extract pre- deciphering file and replace slow
Strong ciphertext in depositing；Then, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer in plain text.For
Re_decrypt (Pi) → (i, N), wherein Pi are to have verified that the file Fi byte stream that there is pre- deciphering temporary file, by secondary
Deciphering generates plaintext byte stream N and submits application layer to.
The system model of said method is as shown in Fig. 2 include three class entities：Cloud Server, proper mobile terminal and illegal
Mobile terminal.When server needs to issue critical data, Cloud Server is set up data cube computation with proper mobile terminal and is carried out
Data communication.Meanwhile, server timing issues authority managing and controlling instruction to proper mobile terminal, is recognized with completing transparent encryption and decryption authority
Card.While legitimate client receives server instruction, journal file is fed back to Cloud Server in real time, client behavior is remembered
Record uploads to Cloud Server backup.Meanwhile, the behavior that illegitimate client attempts to be connected with Cloud Server resume puppet will be tested by identity
Refuse after card, while Cloud Server is in strong encryption state in data transfer way, illegitimate client cannot eavesdrop critical data.
The present invention constructs a more safely and efficiently mobile terminal transparent encryption scheme using the thought of pre- deciphering, profit
The transparent encryption and decryption functions of file system are completed with based on Xposed framework Hook technology, it is achieved that mobile terminal transparent encryption technology
The level of security in intermediate layer, efficiently solves the defect that mobile terminal conventional transparent encryption technology can only ensure application layer security.
Meanwhile, the concept of file set during by introducing pre- deciphering zero, it is achieved that the secondary strong encryption to mobile terminal office data, lifting
Transparent encryption performance, has saved the expense of file system operation process.The present invention can realize simultaneously mobile terminal transparent plus
Close technical performance and the lifting of safety.
Claims (4)
1. a kind of based on the pre- mobile terminal transparent encryption method that deciphers, it is characterised in that for mobile terminal data encryption
Client models, the entity that transparent encryption process is related to is as follows：Strong ciphertext set M={ Mi }, pre- deciphering temporary file set P
={ Pi } and in plain text set N={ Ni }, file set F={ Fi }, i=1,2,3 ..., comprise the following steps that：
(1) Xposed framework initialization：
Initialization Xposed framework, load document system Hook module；According to Xposed frame nature, realize in Android
The Hook funcall of Runtime layer, initializes Hook functions of modules first, and arranges |input paramete for file variable Fi；
(2) file identifier traversal：
Traversal file identifier, judges whether Fi belongs to strong ciphertext collection M；Fi byte stream is extracted, Hook module extracts 16 bit checks
Symbol, judges whether current variable Fi belongs to strong ciphertext set M, if it is not, then directly skipping Hook action scope, returning Fi byte stream and giving
Upper layer application；If so, 16 jurisdiction identifier are then extracted and real-time digital certificate verification is carried out, if present terminal is illegal,
Strong ciphertext status data is returned to user；If legal, step (3) is entered；
(3) pre- deciphering temporary file traversal：
16 pre- deciphering deviants are extracted, pre- deciphering file verification is carried out to current Fi byte stream, if checking does not pass through, is not existed
Ciphertext, then enter step (4)；If being verified, step (5) is directly entered；
(4) pre- deciphering temporary file collection updates：
If there is no a ciphertext, pre- deciphering is carried out to strong ciphertext Fi in current cache, and it is interim to generate corresponding pre- deciphering
File；
(5) the pre- deciphering temporary file subset of secondary deciphering：
If being verified, there is a corresponding ciphertext, then extract pre- deciphering file and replace strong ciphertext Fi in caching；Then,
Secondary deciphering is carried out for a ciphertext in caching；Final output arrives application layer in plain text；
(6) the secondary strong encryption of plaintext subset：
When modification store document, first, 16 jurisdiction identifier are extracted and real-time digital certificate verification is carried out, if present terminal
Illegal, then no weight update data, directly return former strong ciphertext；If legal, clear data is once encrypted, and carry out pre- solution
Ciphertext part updates；Then secondary strong encryption is carried out, and strong ciphertext is stored in tag memory.
2. according to claim 1 based on the pre- mobile terminal transparent encryption method that deciphers, it is characterised in that：Step (1)
Described in initialize Xposed framework, load document system Hook module；According to Xposed frame nature, realize in Android
The Hook funcall of Runtime layer, initializes Hook functions of modules first, and arranges |input paramete for file variable Fi, tool
Body is as follows：
1) by covering primary/system/bin/app_process program, app_process is extended, control
Zygote process；
2) app_process is made to load this jar bag of XposedBridge.jar in start-up course, right so as to complete
The abduction of the Dalvik virtual machine of Zygote process and its establishment；
3) when android system starts, Zygote process loads XposedBridge, and mobile terminal document system is read
Write Method and Native Native method XposedCallHandler, the method are pointed to by JNI method HookMethodNative
Proceed to this Java method of handleHookedMethod again and execute user-defined mobile terminal document system Hook
Function.
3. according to claim 1 based on the pre- mobile terminal transparent encryption method that deciphers, it is characterised in that：Step (3)
The process of the pre- deciphering temporary file traversal is as follows：
16 pre- deciphering deviants are extracted, and pre- deciphering file verification is carried out to current document, if checking does not pass through, is not existed once
Ciphertext, then carry out pre- deciphering, and generate corresponding pre- deciphering temporary file to the strong ciphertext in current cache；If being verified, deposit
In a corresponding ciphertext, then extract pre- deciphering file and the strong ciphertext in caching is replaced, detailed process is as follows：
Pre- deciphering file verification：pre_verification(i)Whether set up, wherein pre_verification (i) is to carry
Take the signature of 16 pre- deciphering deviants；If so, illustrate there is no a ciphertext, then the strong ciphertext in current cache is carried out
Pre- deciphering；Otherwise, there is a corresponding ciphertext, then extract pre- deciphering file and replace the strong ciphertext in caching.
4. according to claim 1 based on the pre- mobile terminal transparent encryption method that deciphers, it is characterised in that：Step (5)
Described in the pre- deciphering temporary file subset of secondary deciphering process as follows：
Pre- deciphering temporary file traversal is verified, and there is a corresponding ciphertext, then extract pre- deciphering file and replace in caching
Strong ciphertext；Then, for a ciphertext in caching, secondary deciphering is carried out；Final output arrives application layer, detailed process in plain text
As follows：
Secondary deciphering：Re_decrypt (Pi) → (i, N), Pi are to have verified that the file Fi byte that there is pre- deciphering temporary file
Stream, generates plaintext byte stream N by secondary deciphering and submits application layer to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825474.9A CN106452781B (en) | 2016-09-14 | 2016-09-14 | It is a kind of based on the mobile terminal transparent encryption method decrypted in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825474.9A CN106452781B (en) | 2016-09-14 | 2016-09-14 | It is a kind of based on the mobile terminal transparent encryption method decrypted in advance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106452781A true CN106452781A (en) | 2017-02-22 |
| CN106452781B CN106452781B (en) | 2019-11-15 |
Family
ID=58168332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825474.9A Active CN106452781B (en) | 2016-09-14 | 2016-09-14 | It is a kind of based on the mobile terminal transparent encryption method decrypted in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106452781B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544826A (en) * | 2017-08-22 | 2018-01-05 | 网易（杭州）网络有限公司 | Method, medium, device and the computing device that Xposed modules are reinforced |
| CN111428255A (en) * | 2020-03-29 | 2020-07-17 | 陈灿阳 | Transparent encryption and decryption method and system based on Mac OS file |
-
2016
- 2016-09-14 CN CN201610825474.9A patent/CN106452781B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| GUOZHEN SHI等: "A User-based Document Management Mechanism in Cloud", 《2014 TENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND SECURITY》 * |
| 朱天楠: "Android系统中隐私数据保护技术研究", 《中国优秀硕士学位论文全文数据库》 * |
| 苏铓等: "面向移动云计算的多要素代理重加密方案", 《通信学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544826A (en) * | 2017-08-22 | 2018-01-05 | 网易（杭州）网络有限公司 | Method, medium, device and the computing device that Xposed modules are reinforced |
| CN107544826B (en) * | 2017-08-22 | 2020-06-09 | 网易（杭州）网络有限公司 | Xpos module reinforcing method, medium, device and computing equipment |
| CN111428255A (en) * | 2020-03-29 | 2020-07-17 | 陈灿阳 | Transparent encryption and decryption method and system based on Mac OS file |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106452781B (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105391840B (en) | Automatically create destination application | |
| CN103457733B (en) | A kind of cloud computing environment data sharing method and system | |
| CN103530570B (en) | A kind of electronic document safety management system and method | |
| CN102624699B (en) | Method and system for protecting data | |
| CN101854243B (en) | Circuit system design encryption circuit and encryption method thereof | |
| CN106411830B (en) | The method and mobile terminal for preventing access data to be tampered | |
| CN104246698B (en) | Elastic operation is system computerized | |
| DE102020126182A1 (en) | PRIVACY AND DATA PROTECTION ON SMART EDGE DEVICES | |
| CN102664928A (en) | Data secure access method used for cloud storage and user terminal system | |
| DE112014000965T5 (en) | Processing a guest event in a hypervisor-driven system | |
| CN102930225A (en) | Electronic document access control method based on confidential identifier | |
| CN105634742A (en) | Session key negotiation method and intelligent secret key device | |
| CN102523095A (en) | User digital certificate remote update method with intelligent card protection function | |
| CN109787768A (en) | A kind of authentication configuration method, device and computer readable storage medium | |
| CN109981266A (en) | Method and device for storing and reading key and sensitive information | |
| CN106682521A (en) | File transparent encryption and decryption system and method based on driver layer | |
| DE102023202297A1 (en) | MAINTAINING THE CONFIDENTIALITY OF CLIENTS IN A CLOUD ENVIRONMENT WHEN USING SECURITY SERVICES | |
| CN106452781A (en) | Pre-decryption-based mobile terminal transparent encryption method | |
| CN205901794U (en) | System for it encrypts to carry out selectivity to big data content | |
| CN105205416A (en) | Mobile hard disk password module | |
| CN106973035A (en) | A kind of document outgoing control system | |
| CN106203130A (en) | A kind of transparent encipher-decipher method driving layer based on Intelligent Dynamic | |
| EP3577873B1 (en) | Safety unit, in particular for an iot device and method for executing one or more applications for secure data exchange with one or more servers providing web services | |
| CN106570395A (en) | Security protection method for operation system command | |
| CN103259689A (en) | Method for changing password of equipment and recovering password after failure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |