CN105825142A - Method and device for encrypting and decrypting documents in mobile terminal - Google Patents
Method and device for encrypting and decrypting documents in mobile terminal Download PDFInfo
- Publication number
- CN105825142A CN105825142A CN201610096613.9A CN201610096613A CN105825142A CN 105825142 A CN105825142 A CN 105825142A CN 201610096613 A CN201610096613 A CN 201610096613A CN 105825142 A CN105825142 A CN 105825142A
- Authority
- CN
- China
- Prior art keywords
- encrypted
- document
- key
- store path
- root key
- 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.)
- Pending
Links
Classifications
-
- 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
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
Abstract
The invention discloses a method and device for encrypting and decrypting documents in a mobile terminal for encrypting and decrypting the documents stored in the mobile terminal to improve the safety of document storage in the mobile terminal. The method for encrypting and decrypting the documents in the mobile terminal comprises the following steps: respectively obtaining root keys which are corresponding to a terminal application and used for encrypting the documents and storage paths of the documents to be encrypted when the documents are required to be encrypted, wherein the root keys are generated according to the system time and the random number after the terminal application is successfully installed, generating encryption keys for encrypting the documents to be encrypted according to the storage paths and the root keys, and using the encryption keys to encrypt the documents to be encrypted.
Description
Technical field
The present invention relates to field of information security technology, particularly relate to a kind of for the method and apparatus of document encryption and decryption in mobile terminal.
Background technology
Along with developing rapidly and the arrival in mobile multimedia epoch of mobile communication technology, the mobile terminal such as mobile phone, as the indispensable mobile communication facility of people, is collected and processing platform to intelligent development, the personal information developing into a movement from simple call instrument.
And along with the development of intelligent terminal's technology, it is provided that the application utilizing the mobile terminal such as mobile phone or panel computer to carry out handling official business also becomes one of popular application.Mobile terminal is utilized to handle official business, make mobile terminal inevitably stores have the business data etc. of some enterprise-levels, such data are the highest to security requirement, in order to avoid in mobile terminal, storage has the relevant documentation of confidential data to reveal, need to store in the terminal after this type of file encryption.At present; the mode of the file encryption storage in mobile terminal usually uses fixing key to be encrypted; all of document uses identical key to be encrypted; this key can be write dead in application program in advance; but its leakage being easy to be caused key by decompiling, once Key Exposure, then all encrypted document stored in causing mobile terminal all will lose protection; thus, reduce the safety of document storage in mobile terminal.
Summary of the invention
The embodiment of the present invention provides a kind of for the method and apparatus of document encryption and decryption in mobile terminal, in order to the document of storage in mobile terminal is carried out encryption and decryption, improves the safety of document storage in mobile terminal.
The embodiment of the present invention provides a kind of for the method for file encryption in mobile terminal, including:
When document is encrypted by needs, obtaining root key corresponding to terminal applies and the store path of document to be encrypted encrypting described document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；
According to described store path and root key, generate the encryption key encrypting described document to be encrypted；
Utilize document to be encrypted described in the encryption keys generated.
Wherein, according to described store path and root key, generate the encryption key encrypting described document to be encrypted, specifically include:
Utilize described root key that described store path is encrypted the encryption key obtaining encrypting described document to be encrypted；Or
Described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the encryption key obtaining encrypting described document to be encrypted.
Described mobile terminal uses iOS operating system；And described root key is stored in the key chain of iOS operating system.
The embodiment of the present invention provides a kind of method for deciphering the document in mobile terminal, including:
When encrypted document is decrypted by needs, obtaining root key corresponding to terminal applies and the store path of described encrypted document deciphering described encrypted document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；And
According to described store path and root key, generate the decruption key deciphering described encrypted document；
Utilize encrypted document described in the decryption key decryption generated.
Wherein, according to described store path and root key, generate the decruption key deciphering described encrypted document, specifically include:
Utilize described root key that described store path is encrypted the decruption key obtaining deciphering described encrypted document；Or
Described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the decruption key obtaining deciphering described encrypted document.
Wherein, described mobile terminal uses iOS operating system；And described root key is stored in the key chain of iOS operating system.
The embodiment of the present invention provides a kind of for the device to the file encryption in mobile terminal, including:
Acquiring unit, for when document is encrypted by needs, obtaining root key corresponding to terminal applies and the store path of document to be encrypted encrypting described document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit, for according to described store path and root key, generating the encryption key encrypting described document to be encrypted；
Ciphering unit, for utilizing document to be encrypted described in the encryption keys of generation.
Described Key generating unit, the encryption key obtaining encrypting described document to be encrypted specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the encryption key obtaining encrypting described document to be encrypted.
The embodiment of the present invention provides a kind of device for deciphering the document in mobile terminal, including:
Acquiring unit, for when encrypted document is decrypted by needs, obtaining root key corresponding to terminal applies deciphering described encrypted document and the store path obtaining described encrypted document, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit, for according to described store path and root key, generating the decruption key deciphering described encrypted document；
Decryption unit, for utilizing encrypted document described in the decryption key decryption of generation.
Described Key generating unit, the decruption key obtaining deciphering described encrypted document specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the decruption key obtaining deciphering described encrypted document.
What the embodiment of the present invention provided is used for the method and apparatus of file encryption in mobile terminal, on the one hand, encryption key is for generate in real time when needs encrypted document, the probability being cracked is relatively low, and it separates with decruption key, key cannot be obtained by decompiling, this improves the safety of encrypted document；On the other hand, by generating the root key of its correspondence for different terminal applies, owing to according to root key, successful system time and generating random number are installed in application, the root key that different terminal applies is corresponding is the most different, therefore, even if the encryption key of certain encrypted document is cracked, do not interfere with the safety of other encrypted document yet.
The method and apparatus of the deciphering of document in mobile terminal that the embodiment of the present invention provides, owing to decruption key is for generate in real time when encrypted document is decrypted by needs, the probability being cracked is relatively low, this improves the safety of encrypted document；On the other hand, by generating the root key of its correspondence for different terminal applies, owing to according to root key, successful system time and generating random number are installed in application, the root key that different terminal applies is corresponding is the most different, therefore, even if the encryption key of certain encrypted document is cracked, do not interfere with the safety of other encrypted document yet.
Other features and advantages of the present invention will illustrate in the following description, and, partly become apparent from description, or understand by implementing the present invention.The purpose of the present invention and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is in the embodiment of the present invention, to the implementing procedure schematic diagram of the method for file encryption in mobile terminal；
Fig. 2 is in the embodiment of the present invention, to the implementing procedure schematic diagram of the method for document deciphering in mobile terminal；
Fig. 3 is in the embodiment of the present invention, to the structural representation of the device of file encryption in mobile terminal；
Fig. 4 is in the embodiment of the present invention, to the structural representation of the device of document deciphering in mobile terminal.
Detailed description of the invention
In order to improve the safety of document storage in mobile terminal, embodiments provide a kind of to the method and apparatus of document encryption and decryption in mobile terminal.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are illustrated, it is to be understood that, preferred embodiment described herein is merely to illustrate and explains the present invention, it is not intended to limit the present invention, and in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
In order to realize that the document of storage in mobile terminal is carried out encryption and decryption, in the embodiment of the present invention, any terminal applies, when being installed in mobile terminal, is required for this terminal applies and generates the root key of its correspondence.Preferably, according to system time (mobile terminal operating system time) and a generating random number when this root key can be initial start-up after the success of corresponding terminal applies, this random number can also be self-defining character string etc., such as, root key can use system time and random number or self-defining string-concatenation to form.This way it is ensured that the root key difference that different terminal applies is corresponding.After the root key generating terminal applies, in order to ensure that the safety of root key can be stored in after being encrypted in mobile terminal, wherein this encryption can be realized by mobile terminal operating system.Such as, if mobile terminal uses iOS operating system, during then this root key can be stored in the key chain of iOS operating system, the feature of key chain is, any terminal applies, when obtaining its root key, can only get the root key of its correspondence, the key that other-end application is corresponding cannot be accessed, hereby it is achieved that the separation of the root key of different terminals application correspondence, it is ensured that the safety of root key.
As it is shown in figure 1, be used for the implementing procedure schematic diagram of the method for file encryption in mobile terminal for what the embodiment of the present invention provided, may comprise steps of:
S11, when document is encrypted by needs, obtain root key corresponding to terminal applies and the store path of document to be encrypted of encryption the document respectively.
S12, according to the store path of document to be encrypted and root key, generate the encryption key encrypting document to be encrypted.
When being embodied as, step S12 can have a following two embodiment:
The first embodiment,
Utilize root key directly the store path obtained to be encrypted and obtain encryption key, wherein, existing any AES can be used, such as, can be, but not limited to use AES (TheAdvancedEncryptionStandard, Advanced Encryption Standard) AES to use root key to treat the store path of encrypted document be encrypted and obtain encryption key.When being embodied as, different AES encryption ranks can be used according to concrete demand.
In the first embodiment, owing to the store path of document is disclosed, once root key is cracked, then may affect the safety of encrypted document, to this end, step S12 can also be implemented according to following the second embodiment in the embodiment of the present invention.
The second embodiment,
The store path obtained is carried out pretreatment, such as, carries out the store path of acquisition inverting, intercept or different figure places carries out conversion etc., then utilize root key that the store path after processing is encrypted and obtain encryption key.It is also possible to use any AES, for example, it is possible to but be not limited to use AES encryption algorithm.
The encryption keys document to be encrypted that S13, utilization generate.
After generating encryption key, it is possible to use the encryption key of generation is treated encrypted document and is encrypted.
As in figure 2 it is shown, its method implementing procedure schematic diagram being used for the document in mobile terminal is decrypted provided for the embodiment of the present invention, may comprise steps of:
S21, when encrypted document is decrypted by needs, obtain root key corresponding to terminal applies and the store path of this encrypted document deciphering this encrypted document respectively.
S22, according to obtain store path and root key, generate decipher this encrypted document decruption key.
With above-mentioned encryption method type, step S22 also has a following two embodiment:
The first embodiment,
Utilize root key directly the store path obtained to be encrypted and obtain decruption key, wherein, existing any AES can be used, such as, can be, but not limited to use AES (TheAdvancedEncryptionStandard, Advanced Encryption Standard) AES to use root key to treat the store path of encrypted document be encrypted and obtain decruption key.When being embodied as, different AES encryption ranks can be used according to concrete demand.
In the first embodiment, owing to the store path of encrypted document is disclosed, once root key is cracked, then may affect the safety of encrypted document, to this end, step S22 can also be implemented according to following the second embodiment in the embodiment of the present invention.
The second embodiment,
The store path obtained is carried out pretreatment, such as, carries out the store path of acquisition inverting, intercept or different figure places carries out conversion etc., then utilize root key that the store path after processing is encrypted and obtain decruption key.It is also possible to use any AES, for example, it is possible to but be not limited to use AES encryption algorithm.
This encrypted document of decryption key decryption that S23, utilization generate.
After obtaining decruption key, it is possible to use encrypted document is decrypted by the decruption key of generation.
The embodiment of the present invention uses cipher key separation method, it is impossible to obtain key by modes such as decompilings, and different documents uses different encryption keys, just in case certain document key is cracked, also cannot affect the safety of other encrypted document.
Based on same inventive concept, the embodiment of the present invention also each provide a kind of for the device of document encryption and decryption in mobile terminal, owing to the principle of said apparatus solution problem is similar to the method for document encryption and decryption in mobile terminal, therefore the enforcement of said apparatus may refer to the enforcement of method, repeats no more in place of repetition.
As it is shown on figure 3, be used for the apparatus structure schematic diagram to the file encryption in mobile terminal for what the embodiment of the present invention provided, including:
Acquiring unit 31, for when document is encrypted by needs, obtaining root key corresponding to terminal applies and the store path of document to be encrypted encrypting described document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit 32, for according to described store path and root key, generating the encryption key encrypting described document to be encrypted；
Ciphering unit 33, for utilizing document to be encrypted described in the encryption keys of generation.
Wherein, Key generating unit 32, the encryption key obtaining encrypting described document to be encrypted specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the encryption key obtaining encrypting described document to be encrypted.
As shown in Figure 4, its structural representation for the device to the document deciphering in mobile terminal provided for the embodiment of the present invention, may include that
Acquiring unit 41, for when encrypted document is decrypted by needs, obtaining root key corresponding to terminal applies deciphering described encrypted document and the store path obtaining described encrypted document, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit 42, for according to described store path and root key, generating the decruption key deciphering described encrypted document；
Decryption unit 43, for utilizing encrypted document described in the decryption key decryption of generation.
Wherein, Key generating unit 42, the decruption key obtaining deciphering described encrypted document specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the decruption key obtaining deciphering described encrypted document.
For convenience of description, above each several part is divided by function and is respectively described for each module (or unit).Certainly, the function of each module (or unit) can be realized in same or multiple softwares or hardware when implementing the present invention.What the embodiment of the present invention provided is used for the method and apparatus of file encryption in mobile terminal, on the one hand, encryption key is for generate in real time when needs encrypted document, the probability being cracked is relatively low, and it separates with decruption key, key cannot be obtained by decompiling, this improves the safety of encrypted document；On the other hand, by generating the root key of its correspondence for different terminal applies, owing to according to root key, successful system time and generating random number are installed in application, the root key that different terminal applies is corresponding is the most different, therefore, even if the encryption key of certain encrypted document is cracked, do not interfere with the safety of other encrypted document yet.
The method and apparatus of the deciphering of document in mobile terminal that the embodiment of the present invention provides, owing to decruption key is for generate in real time when encrypted document is decrypted by needs, the probability being cracked is relatively low, this improves the safety of encrypted document；On the other hand, by generating the root key of its correspondence for different terminal applies, owing to according to root key, successful system time and generating random number are installed in application, the root key that different terminal applies is corresponding is the most different, therefore, even if the encryption key of certain encrypted document is cracked, do not interfere with the safety of other encrypted document yet.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware.And, the present invention can use the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is to describe with reference to method, equipment (system) and the flow chart of computer program according to embodiments of the present invention and/or block diagram.It should be understood that can be by the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces the manufacture including command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to perform sequence of operations step on computer or other programmable devices to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides the step of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame for realization.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to the present invention.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. one kind is used for the method for file encryption in mobile terminal, it is characterised in that including:
When document is encrypted by needs, obtaining root key corresponding to terminal applies and the store path of document to be encrypted encrypting described document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；
According to described store path and root key, generate the encryption key encrypting described document to be encrypted；
Utilize document to be encrypted described in the encryption keys generated.
2. the method for claim 1, it is characterised in that according to described store path and root key, generate the encryption key encrypting described document to be encrypted, specifically include:
Utilize described root key that described store path is encrypted the encryption key obtaining encrypting described document to be encrypted；Or
Described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the encryption key obtaining encrypting described document to be encrypted.
3. the method for claim 1, it is characterised in that described mobile terminal uses iOS operating system；And described root key is stored in the key chain of iOS operating system.
4. the method being used for the document in mobile terminal is deciphered, it is characterised in that including:
When encrypted document is decrypted by needs, obtaining root key corresponding to terminal applies and the store path of described encrypted document deciphering described encrypted document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；And
According to described store path and root key, generate the decruption key deciphering described encrypted document；
Utilize encrypted document described in the decryption key decryption generated.
5. method as claimed in claim 4, it is characterised in that according to described store path and root key, generate the decruption key deciphering described encrypted document, specifically include:
Utilize described root key that described store path is encrypted the decruption key obtaining deciphering described encrypted document；Or
Described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the decruption key obtaining deciphering described encrypted document.
6. method as claimed in claim 4, it is characterised in that described mobile terminal uses iOS operating system；And described root key is stored in the key chain of iOS operating system.
7. the device being used for the file encryption in mobile terminal, it is characterised in that including:
Acquiring unit, for when document is encrypted by needs, obtaining root key corresponding to terminal applies and the store path of document to be encrypted encrypting described document respectively, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit, for according to described store path and root key, generating the encryption key encrypting described document to be encrypted；
Ciphering unit, for utilizing document to be encrypted described in the encryption keys of generation.
8. device as claimed in claim 7, it is characterised in that
Described Key generating unit, the encryption key obtaining encrypting described document to be encrypted specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the encryption key obtaining encrypting described document to be encrypted.
9. one kind is used for the device deciphering the document in mobile terminal, it is characterised in that including:
Acquiring unit, for when encrypted document is decrypted by needs, obtaining root key corresponding to terminal applies deciphering described encrypted document and the store path obtaining described encrypted document, described root key is according to system time and generating random number after described terminal applies is installed successfully；
Key generating unit, for according to described store path and root key, generating the decruption key deciphering described encrypted document；
Decryption unit, for utilizing encrypted document described in the decryption key decryption of generation.
10. device as claimed in claim 9, it is characterised in that
Described Key generating unit, the decruption key obtaining deciphering described encrypted document specifically for utilizing described root key that described store path is encrypted；Or described store path is carried out pretreatment, utilizes described root key that the store path after processing is encrypted the decruption key obtaining deciphering described encrypted document.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096613.9A CN105825142A (en) | 2016-02-22 | 2016-02-22 | Method and device for encrypting and decrypting documents in mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096613.9A CN105825142A (en) | 2016-02-22 | 2016-02-22 | Method and device for encrypting and decrypting documents in mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105825142A true CN105825142A (en) | 2016-08-03 |
Family
ID=56987096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096613.9A Pending CN105825142A (en) | 2016-02-22 | 2016-02-22 | Method and device for encrypting and decrypting documents in mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105825142A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063756A (en) * | 2017-11-21 | 2018-05-22 | 阿里巴巴集团控股有限公司 | A kind of key management method, device and equipment |
| CN108846266A (en) * | 2018-07-11 | 2018-11-20 | 中国联合网络通信集团有限公司 | A kind of method, system and the communication terminal of application program operation authorization |
| CN109450857A (en) * | 2018-10-12 | 2019-03-08 | 五八有限公司 | Encryption data configuration method, device, server, encryption equipment and storage medium |
| CN111639353A (en) * | 2020-05-26 | 2020-09-08 | 浙江大华技术股份有限公司 | Data management method and device, embedded equipment and storage medium |
| CN114389806A (en) * | 2022-01-12 | 2022-04-22 | 四创科技有限公司 | Method and system suitable for secure transmission of core confidential data |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222711A (en) * | 2008-02-02 | 2008-07-16 | 代邦（江西）制卡有限公司 | Mobile communication network system supporting virtual SIM card and authentication method thereof |
| US20120036358A1 (en) * | 2010-02-10 | 2012-02-09 | SecurenCrypt, LLC | Document encryption and decryption |
| CN102957696A (en) * | 2012-10-25 | 2013-03-06 | 北京奇虎科技有限公司 | Data processing method and device |
| CN103218576A (en) * | 2013-04-07 | 2013-07-24 | 福建伊时代信息科技股份有限公司 | System and method for preventing electronic files from being copied |
| CN103560892A (en) * | 2013-11-21 | 2014-02-05 | 深圳中兴网信科技有限公司 | Secret key generation method and secret key generation device |
-
2016
- 2016-02-22 CN CN201610096613.9A patent/CN105825142A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222711A (en) * | 2008-02-02 | 2008-07-16 | 代邦（江西）制卡有限公司 | Mobile communication network system supporting virtual SIM card and authentication method thereof |
| US20120036358A1 (en) * | 2010-02-10 | 2012-02-09 | SecurenCrypt, LLC | Document encryption and decryption |
| CN102957696A (en) * | 2012-10-25 | 2013-03-06 | 北京奇虎科技有限公司 | Data processing method and device |
| CN103218576A (en) * | 2013-04-07 | 2013-07-24 | 福建伊时代信息科技股份有限公司 | System and method for preventing electronic files from being copied |
| CN103560892A (en) * | 2013-11-21 | 2014-02-05 | 深圳中兴网信科技有限公司 | Secret key generation method and secret key generation device |
Non-Patent Citations (3)
| Title |
|---|
| 栾恩杰 等: "《国防科技名词大典 电子》", 31 January 2002 * |
| 熊平 等: "《信息安全原理与应用》", 31 May 2009 * |
| 王巧伶 等: "《OSX10.9 Mavericks小牛版应用秘技特训营》", 31 July 2014 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063756A (en) * | 2017-11-21 | 2018-05-22 | 阿里巴巴集团控股有限公司 | A kind of key management method, device and equipment |
| WO2019100845A1 (en) * | 2017-11-21 | 2019-05-31 | 阿里巴巴集团控股有限公司 | Key management method and apparatus and device |
| TWI686071B (en) * | 2017-11-21 | 2020-02-21 | 香港商阿里巴巴集團服務有限公司 | Key management method, device and equipment |
| CN108063756B (en) * | 2017-11-21 | 2020-07-03 | 阿里巴巴集团控股有限公司 | Key management method, device and equipment |
| US10931651B2 (en) | 2017-11-21 | 2021-02-23 | Advanced New Technologies Co., Ltd. | Key management |
| CN108846266A (en) * | 2018-07-11 | 2018-11-20 | 中国联合网络通信集团有限公司 | A kind of method, system and the communication terminal of application program operation authorization |
| CN109450857A (en) * | 2018-10-12 | 2019-03-08 | 五八有限公司 | Encryption data configuration method, device, server, encryption equipment and storage medium |
| CN109450857B (en) * | 2018-10-12 | 2022-05-31 | 五八有限公司 | Encrypted data configuration method, device, server, encryption equipment and storage medium |
| CN111639353A (en) * | 2020-05-26 | 2020-09-08 | 浙江大华技术股份有限公司 | Data management method and device, embedded equipment and storage medium |
| CN111639353B (en) * | 2020-05-26 | 2023-08-11 | 浙江大华技术股份有限公司 | Data management method and device, embedded equipment and storage medium |
| CN114389806A (en) * | 2022-01-12 | 2022-04-22 | 四创科技有限公司 | Method and system suitable for secure transmission of core confidential data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10601801B2 (en) | Identity authentication method and apparatus | |
| CN110278078B (en) | Data processing method, device and system | |
| US20170295013A1 (en) | Method for fulfilling a cryptographic request requiring a value of a private key | |
| CN105681039B (en) | Method and device for generating a secret key and corresponding decryption | |
| CN105812332A (en) | Data protection method | |
| CN103259651B (en) | A kind of method and system to terminal data encryption and decryption | |
| CN105825142A (en) | Method and device for encrypting and decrypting documents in mobile terminal | |
| CN106980794A (en) | TrustZone-based file encryption and decryption method and device and terminal equipment | |
| CN103246850A (en) | Method and device for processing file | |
| CN108134673B (en) | Method and device for generating white box library file | |
| CN111010266B (en) | Message encryption and decryption, reading and writing method and device, computer equipment and storage medium | |
| CN108111622B (en) | Method, device and system for downloading white box library file | |
| CN111475543A (en) | Fuzzy search method and device, computer equipment and storage medium | |
| CN107196907A (en) | A kind of guard method of Android SO files and device | |
| CN106096424A (en) | One is encrypted method and terminal to local data | |
| CN103853943A (en) | Program protection method and device | |
| CN109687966A (en) | Encryption method and its system | |
| CN102833077A (en) | Encryption and decryption methods of remote card-issuing data transmission of financial IC (Integrated Circuit) card and financial social security IC card | |
| US10110373B2 (en) | System and method for manipulating both the plaintext and ciphertext of an encryption process prior to dissemination to an intended recipient | |
| CN105022965A (en) | Data encryption method and apparatus | |
| CN107483187A (en) | A kind of data guard method and device based on credible password module | |
| CN107404476B (en) | Method and device for protecting data security in big data cloud environment | |
| CN103491384A (en) | Encrypting method and device of video and decrypting method and device of video | |
| CN103997483A (en) | Information safety control method and apparatus, and electronic device | |
| KR20130109560A (en) | Encryption method of database of mobile communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |
|
| RJ01 | Rejection of invention patent application after publication |