CN103390026B - A kind of mobile intelligent terminal secure browser and its method of work - Google Patents
A kind of mobile intelligent terminal secure browser and its method of work Download PDFInfo
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- CN103390026B CN103390026B CN201310247491.5A CN201310247491A CN103390026B CN 103390026 B CN103390026 B CN 103390026B CN 201310247491 A CN201310247491 A CN 201310247491A CN 103390026 B CN103390026 B CN 103390026B
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Abstract
The present invention relates to a kind of mobile intelligent terminal secure browser and its method of work, including network data browse unit, local file administrative unit, data cache management unit, secure configuration management unit, mode of operation administrative unit, file encryption-decryption unit and seamless security managing unit, its method of work is：1）User configures in mobile intelligent terminal to the mode of operation of browser；2）User switches browser mode of operation to safe mode, and mode of operation is switched into safe mode when downloading and/or being data cached；3）User in the secure mode, opens local cipher file.Present invention ensure that corresponding file only could be decrypted in the mobile intelligent terminal of its binding, and personal information is mutually isolated with company information, realize the security protection means of the personal different stage with enterprise.It is simultaneously effective to prevent mobile phone viruses, wooden horse from stealing data, also greatly reduce due to the risk that mobile intelligent terminal device losses are brought.
Description
Technical field
The present invention relates to mobile intelligent terminal secure browser, more particularly to a kind of mobile intelligent terminal secure browser and
Its method of work, belongs to information security and field of mobile terminals.
Background technology
Currently, increasing enterprise staff is by mobile intelligent terminal equipment such as personal iPhone, iPad or Android
Bring workplace into, handle the business related to work, this mode has turned into a necessary benefit of enterprises office means
Fill.Employee can use mobile intelligent terminal easily to obtain and store the data and file of enterprises, check business phase
Information is closed, this pushes the information system management of enterprise to front end, lift the operating efficiency and response speed of employee.Meanwhile, mobile intelligence
Energy terminal device is varied, and the isomery for needing enterprise response multi-platform is managed, and this promotes the business system that enterprises are built
System is that the Web based on http/https is applied mostly, and the system such as OA, CRM, ERP of enterprises all supports movement well
Web browser on intelligent terminal, this is also widely used mobile intelligent terminal browser.
But this trend causes the further extension on enterprise's working environment border, and employee is can be in same intelligent mobile
The vocational work of enterprise is handled in equipment, the web page browsing and information processing of individual can be carried out again.Enterprise handles official business and personal business
Instant switches, and the boundary between enterprises and individuals' application is increasingly obscured.It is this that to be bordering on the problem of zero boundary is brought be mobile
Intelligent terminal turns into the new a breach of security of enterprise, and is easily introduced malicious code implantation, especially Android system, when being acquired
After root authority, it is meant that the faith mechanism built in system is destroyed, and security mechanism is bypassed, and makes to be stored in intelligent movable
Business data in terminal is completely in unprotect state.Simultaneously as mobile device small volume, easily loses or stolen,
The stolen risk that the enterprise's sensitive information for making to be stored in mobile intelligent terminal equipment is existed to leakage of equipment.
Current enterprise is to solve the above problems, main mode has：By work out administrative rules constrain employee's image,
Introduce intelligent mobile access control system, prevented using long-range VPN access mechanisms, by modes such as URL black and white lists controls
Shield.However, all there are many drawbacks in this several ways.For actively deleting file by regulatory requirements employee, employee is very
It is possible to forget to perform deletion, even if employee is actively deleted after the file downloaded using browser, works as device losses, deleted
The file removed by third party's instrument it is possible to cracked, and data can be reduced；For passing through intelligent mobile access control system
Means of defence, the problem of solve only identity security；For long-range VPN access mechanisms, only realize the checking that is connected into network and
The safety of network data transmission；And URL black and white lists control modes, it also solve only the limitation for accessing purpose；All these
Safeguard procedures, all do not solve on mobile intelligent terminal the storage brought during using browser access network data well
Safety problem.
The content of the invention
For current existing various risks and problem, the invention discloses a kind of mobile intelligent terminal secure browser
And its method of work, the function of being provided using the present invention, download file and the caching file encryption storage of secure browser are realized,
Will encryption file and mobile intelligent terminal apparatus bound, prevent file by illegal the divulging a secret of causing of circulating away；And support after readding
Burn, seamless browse mode, realize local information erasing safely, prevent rogue program or viral wooden horse to the robber of file data
Take；The setting of mode of operation is also provided simultaneously, the safe mode of browser and the free switching of general mode is realized, meets enterprise
The requirement of the separation protection of data and personal data.
Technical scheme is as follows：A kind of mobile intelligent terminal secure browser method of work, its step includes：
1）User configures in mobile intelligent terminal to the mode of operation of browser, and the mode of operation includes common mould
Formula and safe mode；
2）User switches browser mode of operation to safe mode, and the file data downloaded and/or cached is encrypted,
It is saved in simultaneously local；
3）User in the secure mode, opens local cipher file.
Further, when being additionally included in user and exiting mobile intelligent terminal secure browser program, open seamless safety and match somebody with somebody
Put the local file that will be stored in mobile intelligent terminal, caching and historical record and carry out safe erasing.
Further, browser mode of operation is switched to performed after safe mode it is a kind of or many in following method
Kind：
It is encrypted to downloading to the local file of mobile intelligent terminal, and encryption file is stored in secure storage areas
In；
Automatically call described file encryption-decryption unit that encryption file is decrypted and check opening encryption file；
It is encrypted to being cached to the local cache file of mobile intelligent terminal, and encryption file is stored in safe storage
Area.
Further, the secure browser program on user's operation mobile intelligent terminal, sets testing for mode of operation switching
Password is demonstrate,proved, and the seamless deletion configuration being turned on and off is set.
Further, when being switched to general mode by safe mode, user is without input validation password, when by general mode
Safe mode is switched to, user needs input validation password, and password authentication is switched to safe mode after by general mode.
Further, random number and mobile intelligent terminal equipment are used to the file of the download or the file data of caching
ID cryptographic Hash, to file data Partial encryption, is added as encryption key using password as encryption key to random number
It is close, and the file data part after encryption is attached to, form new encryption file.
Further, use password as decryption key decryption random number the local cipher file, use random number
Cryptographic Hash with mobile intelligent terminal device id is as decryption key decryption file data part, the file formed after decryption.
Further, file plus and/or decrypt in same mobile intelligent terminal equipment carry out, with the mobile intelligence
Can terminal device ID matchings.
The present invention also proposes a kind of mobile intelligent terminal secure browser, including network data browse unit, local file
Administrative unit and data cache management unit, it is characterised in that also include：Secure configuration management unit, mode of operation management are single
Member, file encryption-decryption unit；
The secure configuration management unit, matches somebody with somebody for user in mobile intelligent terminal to the mode of operation of browser
Put, the mode of operation includes general mode and safe mode；
The mode of operation administrative unit, for the mode of operation to be switched into safe mould when opening local file
Formula, or switch browser mode of operation for user, the mode of operation is switched to peace when downloading and/or being data cached
Syntype；Or it is switched to general mode；
The file encryption-decryption unit, is encrypted to downloading to the local file of mobile intelligent terminal, and will encryption text
Part is stored in secure storage areas；Or call automatically described file encryption-decryption unit to encryption file be decrypted check beat
Open encryption file；Or be encrypted to being cached to the local cache file of mobile intelligent terminal, and encryption file is stored in
Secure storage areas.
Further, in addition to seamless security managing unit, when program is exited, the seamless mode management unit safety
File after the information such as file, the historical record produced on deletion intelligent mobile terminal, safety deleting recovers work by third party
Tool is irrecoverable.
Visible by foregoing description, following effect can be achieved in the present invention：
User accesses network data using mobile intelligent terminal secure browser, when the mode of operation of secure browser switches
During to safe mode, local caching and the file of download are all encryption storages, and it is to be stored separately in peace to encrypt file
In full memory block, meanwhile, encryption file and equipment are one-to-one bindings, and only user password is verified, and successful switch is arrived
Reading file can be decrypted during mode of operation, even if therefore file and data illegally stolen, file is not in other equipment
Energy successful decryption, prevents leakage of information；When program is exited, system supports the automatic text that mobile intelligent terminal is locally stored
Part, caching and historical information etc. carry out seamless deletion, realize " burn-after-reading ", so avoid user using forgetting after complete data
Note deletes situation about destroying, and is divulged a secret while being also prevented from file data and recovering caused by third party's instrument.Pass through these safety
Mechanism, it is ensured that user uses the security that mobile intelligent terminal browser works in enterprises, it is to avoid be stored in mobile intelligence
Data and file in energy terminal are divulged a secret.
Compared to the prior art, advantage of the invention is that：
The inventive method will encrypt file and apparatus bound using file encryption as core, it is ensured that only in its binding
Mobile intelligent terminal could decrypt corresponding file；Meanwhile, the switching of mode of operation is supported, by personal information and company information phase
Mutually isolation, realizes the security protection means of the personal different stage with enterprise；And burn-after-reading mechanism is proposed, coordinate safe nothing
Trace method for deleting, can effectively prevent mobile phone viruses, wooden horse from stealing data, also greatly reduce due to mobile intelligent terminal
The risk that device losses are brought.
Brief description of the drawings
Fig. 1 is a kind of component units schematic diagram of mobile intelligent terminal secure browser of the invention；
Fig. 2 is that the method for work of mobile intelligent terminal secure browser of the present invention accesses network data flow figure；
Fig. 3 is the file encryption process schematic of the method for work of mobile intelligent terminal secure browser of the present invention；
Fig. 4 is that the method for work of mobile intelligent terminal secure browser of the present invention downloads document flowchart；
Fig. 5 is that the method for work of mobile intelligent terminal secure browser of the present invention opens locally stored file flow chart；
Fig. 6 is that the method for work of mobile intelligent terminal secure browser of the present invention performs seamless deletion flow chart.
Embodiment
The mobile intelligent terminal secure browser and its method of work of the present invention are further explained in detail below in conjunction with the accompanying drawings
State.
It is a kind of component units schematic diagram of mobile intelligent terminal secure browser of the invention as shown in Figure 1：The present invention is carried
A kind of mobile intelligent terminal secure browser is supplied, method of work is：
A) network data browse unit, for obtaining, storing, showing network data and download file；
B) secure configuration management unit, checking password, configuration seamless deletion for setting mode of operation switching；
C) mode of operation administrative unit, the switching for supporting the mode of operation to current safety browser, by common mould
Formula is switched to safe mode, or is switched to general mode by safe mode；
D) file encryption-decryption unit, for the file stored on mobile intelligent terminal to be encrypted, in mobile intelligence
The encryption file being opened in energy terminal is decrypted；
E) local file administrative unit, for managing the file downloaded to by secure browser on mobile intelligent terminal, beats
Open file shows file content；
F) data cache management unit, can be to caching text for being managed to the cache file that secure browser is produced
Part carries out encryption and decryption；
G) seamless security managing unit, for performing safety deleting to the data produced by secure browser and file；
Mode of operation administrative unit described in mobile intelligent terminal, when performing mode of operation switching, when being switched to safety
Pattern, secure browser downloads file and cache file is automatically encrypted；When being switched to general mode, file and caching are downloaded
File is not encrypted；
File encryption-decryption unit described in mobile intelligent terminal carries out encryption and decryption, plus solution to the file on mobile intelligent terminal
Close process is transparent, the encryption process of user's imperceptible file in use for a user, and file adds solution
Close process depends on user password, device id and random number.
Data cache management unit described in mobile intelligent terminal, caching text produced during network browsing is carried out to user
Part is filtered, and calls described file encryption-decryption unit, file is encrypted during write buffer file, during read buffer file pair
File is decrypted；
Seamless mode management unit described in mobile intelligent terminal, can safety deleting intelligent movable end when program is exited
It is irrecoverable by third-party recovery instrument after the information such as the file, the historical record that are produced on end, safety deleting；
The invention provides the safe browsing method of above-mentioned mobile intelligent terminal secure browser, the method for work includes：
A) after user is by user name and password authentication, safe mode characteristic can be configured, setting is turned on and off
The checking password of seamless security configuration and mode of operation switching；
B) user performs the switching to secure browser current operation mode；
C) when user downloads file, when in safe mode, carried out to downloading to the local file of mobile intelligent terminal
Encryption, and encryption file is stored in secure storage areas, when in general mode, any place is not done to the file of download
Reason, is stored directly in the local general memory area of mobile intelligent terminal；
D) when user opens local file, non-encrypted file can only be checked and open in the normal mode, in safe mould
Under formula, opening encryption file can be checked, can call described file encryption-decryption unit that encryption file is decrypted automatically；
E) in customer access network data, when in safe mode, to being cached to mobile intelligent terminal locally slow
Deposit file to be encrypted, and encryption file is stored in secure storage areas, when in general mode, corresponding caching is not encrypted
File, and file is stored in general memory area；
F) when user exits mobile intelligent terminal secure browser program, when opening seamless security configuration, it is stored in
The local file of mobile intelligent terminal, caching and historical record carry out safe erasing；
Described mode of operation switching, is switched to general mode, user, can be straight without input validation password by safe mode
Switching is connect, safe mode is switched to by general mode, user needs input validation password, and only password authentication passes through, Cai Nengcheng
Work(is switched to safe mode by general mode；
The described file or cache file ciphering process to download, uses random number and mobile intelligent terminal device id
Cryptographic Hash, to file data Partial encryption, random number is encrypted using password as encryption key as encryption key, and
The file data part after encryption is attached to, new encryption file is formed；
Described is decrypted process to local cipher file, using password as decryption key decryption random number, uses
Random number and the cryptographic Hash of mobile intelligent terminal device id are as decryption key decryption file data part, the text formed after decryption
Part；
Wherein, based on this file encryption and decryption method, encryption file is such as transferred to others（Non-executing file adds
Close）In mobile intelligent terminal equipment, even if password is correct, but mobile intelligent terminal device id is unmatched, and file can not
It is successfully decrypted；The encryption and decryption of file, can successful execution only in same mobile intelligent terminal equipment；Pass through this side
Method realizes the binding of encryption file and mobile intelligent terminal equipment and password.
Described secure storage areas, is that secure browser program individually hews out the one piece of independent memory cell come, uses
The encryption file generated in the secure mode in storage；
Described exits the safe erasing operation performed during mobile intelligent terminal secure browser program, is that file is deposited
Storage space, which is put, constantly writes covering with data, and the file after deletion is expendable；
On the smart mobile phone that mobile intelligent terminal secure browser program is arranged on to android system, say in detail below
The method of work of bright secure browser.
1. pair secure browser carries out security configuration
Secure browser program on user's operation mobile phone, can set mode of operation to cut by secure configuration management unit
The checking password changed, and the seamless deletion configuration being turned on and off is set, when user closes seamless deletion configuration, user exits
Secure browser program will not trigger any file deletion action.
When running first time, user need to set initial the user name and password, then during each run, and user needs defeated
Access customer name password is verified；When setting checking password, it is necessary to ask input to meet the password combination mode of safety standard, such as
The methods such as letter+numeral+symbol.
When current operation mode is set to general mode by user, every security feature of secure browser is not turned on, with
The indifference of common Web browser, the caching of customer access network or the file of download all will be stored in general memory area.
When mode of operation is set to safe mode by user, every security feature of secure browser will all be opened, security feature bag
Including the caching of customer access network or the file of download all will be stored in secure storage areas, with generic storage in secure storage areas
It is isolation, separate storage protection on the mathematical logic in area, user can not view what is stored under general mode under mode of operation
Cache and file, user can not view the caching and file stored under mode of operation in the normal mode.
2. access network data using secure browser in the secure mode
When secure browser is set to safe mode by user, network data, idiographic flow are accessed using secure browser
It is the method for work access network data flow figure of mobile intelligent terminal secure browser of the present invention as shown in Figure 2, mainly includes
Following steps：
Step 201, user inputs Url to be visited, connection pair in the address field of mobile intelligent terminal secure browser
The Web service answered；
Step 202, the network data browse unit of secure browser is set up HTTP/HTTPS with Web server and is connected, and obtains
The data message for taking Web service to return；
Step 203, the data cache management unit of secure browser, calls file encryption-decryption unit to local cache file
Encryption, and the cache file after encryption is stored into the secure storage areas of mobile phone, the file after encryption can only be on this mobile phone
Decryption displaying；
Wherein, be as shown in Figure 3 mobile intelligent terminal secure browser of the present invention method of work file encryption process
Schematic diagram, encryption key pair is used as using random number (R) and the cryptographic Hash of current mobile intelligent terminal device id (D) (H (R+D))
File (File0) is encrypted, the file (File1) after generation encryption, the data division (H (R+D) (content)) of this file
It is encryption, then, to verify that password, as encryption key (Key), random number (R) is encrypted, the file after being encrypted
Auxiliary information (Key (R)), and file auxiliary information is attached to the afterbody for encrypting file (File1), one is formed by number of files
The new file (File2) combined according to part and auxiliary information；
File encryption verifies that such as password authentication fails, then file can not be successfully decrypted with password secondary file encryption and decryption,
File encryption is bound with device id, such as departing from the equipment for performing encryption, then file can not be successfully decrypted.File encryption
Combined with random number, one-time pad, it is ensured that it is also different that same document performs encrypted content.
Step 204, secure browser calls file encryption-decryption unit to decrypt local cache file in display data, and
Data message after displaying decryption；
Wherein, it is as follows to the decrypting process of file, to verify password as decruption key (Key), to being stored in tail of file
Encryption after auxiliary information (Key (R)) be decrypted, obtain random number (R), use random number (R) and current intelligent movable
Terminal device ID (D) cryptographic Hash is carried out as decruption key (H (R+D)) to file data part (H (R+D) (content))
Decryption, the file after being decrypted；
3. user is downloaded the file on mobile phone using secure browser in the secure mode
When secure browser is set to safe mode by user, using secure browser from Web service download file when, such as
It is the method for work download document flowchart of mobile intelligent terminal secure browser of the present invention shown in Fig. 4, it is main to include following step
Suddenly：
Step 301, user downloads file link in the selection of mobile intelligent terminal secure browser, triggers file download；
Step 302, the network data browse unit of secure browser is set up HTTP/HTTPS with Web server and is connected, and holds
Row file download；
Step 303, the network data browse unit of secure browser calls file encryption-decryption unit, to the number of files of download
Encryption is performed according to stream；
Wherein, the document data flow ciphering process to download and the ciphering process to cache file are consistent；
Step 304, the file after encryption is stored in the peace of mobile phone locally by the network data browse unit of secure browser
In full memory block；
4. the file that mobile intelligent terminal is locally stored is opened in the secure mode
Secure browser is set to safe mode by user, and opening mobile intelligent terminal using secure browser is locally stored
File when, be as shown in Figure 5 mobile intelligent terminal secure browser of the present invention method of work open locally stored file stream
Cheng Tu, mainly comprises the following steps：
Step 401, user uses the local file administrative unit of secure browser, and opening is stored under secure storage areas
The encryption file of load；
Wherein, user can only view the encryption file being stored in secure storage areas in file management unit, without
The file being stored under general memory area can be viewed；
Step 402, file management unit calls file encryption-decryption unit, decryption is performed to encryption file, after generation decryption
Document data flow；
Wherein, it is consistent to the decrypting process and the decrypting process to cache file of downloading file；
Step 403, file management unit performs the opening operation of file；
Wherein, the file type supported for secure browser, the type such as pdf, txt, word, ppt, excel
File, file is directly opened by secure browser；The file type do not supported for secure browser, will call third party's program
Open file；
5. exiting secure browser program performs seamless deletion
User exits secure browser program, is the work of mobile intelligent terminal secure browser of the present invention as shown in Figure 6
Method performs seamless deletion flow chart, mainly comprises the following steps：
Step 501, check from the config option of secure browser, read seamless deletion configuration；
Step 502, judge configuration item state, if disabled status, then step 504 is performed, if enabling state, then
Perform step 503；
Step 503, the data that mobile phone is locally stored seamless security managing unit perform seamless deletion；
Wherein, local data may include the file downloaded, the data buffer storage file of the type such as video, audio, picture, user
Access the information such as historical record；
Step 504, secure browser program is exited；
Wherein, as secure browser is set to enable seamless deletion configuration, seamless delete will be performed when user quits a program
Remove, all users by secure browser carry out network browsing and download file operation produced by data and file, using pair
The disk space of storage carries out the multiple erasable back-filling way of data, realizes that data safety deletes destruction, has reached " burn-after-reading "
Purpose, realize the high safety access mechanism of mobile intelligent terminal.
Claims (7)
1. a kind of mobile intelligent terminal secure browser method of work, its step includes：
1) user configures in mobile intelligent terminal to the mode of operation of browser, the mode of operation include general mode and
Safe mode；
2) user switches browser mode of operation to safe mode, the file data downloaded and/or cached is encrypted, simultaneously
It is saved in local；Random number and mobile intelligent terminal device id are used to the file of the download and/or the file data of caching
Cryptographic Hash as encryption key to file data Partial encryption, random number is encrypted using password as encryption key,
And the file data part after encryption is attached to, form new encryption file；
3) user switches browser mode of operation to general mode, can only check and open non-encrypted file；
4) user in the secure mode, opens local cipher file；
5) when being switched to safe mode by general mode, user needs input validation password, and password authentication is after by common mould
Formula is switched to safe mode；
6) when user exits mobile intelligent terminal secure browser program, open seamless security configuration and will be stored in intelligent movable
Local file, caching and the historical record of terminal carry out safe erasing by the erasable back-filling way of multiple data.
2. mobile intelligent terminal secure browser method of work as claimed in claim 1, it is characterised in that browser works
Pattern switching is to the one or more performed after safe mode in following method：
It is encrypted to downloading to the local file of mobile intelligent terminal, and encryption file is stored in secure storage areas；
Automatically call described file encryption-decryption unit that encryption file is decrypted and check opening encryption file；
It is encrypted to being cached to the local cache file of mobile intelligent terminal, and encryption file is stored in secure storage areas.
3. mobile intelligent terminal secure browser method of work as claimed in claim 1, it is characterised in that user's operation movement
It is seamless that secure browser program on intelligent terminal, the checking password for setting mode of operation to switch, and setting are turned on and off
Delete configuration.
4. mobile intelligent terminal secure browser method of work as claimed in claim 1, it is characterised in that when by safe mode
General mode is switched to, user is without input validation password.
5. the mobile intelligent terminal secure browser method of work as described in claim 1-2 any one, it is characterised in that right
The local cipher file uses password as decryption key decryption random number, uses random number and mobile intelligent terminal device id
Cryptographic Hash as decryption key decryption file data part, the file formed after decryption.
6. the mobile intelligent terminal secure browser method of work as described in claim 1-2 any one, it is characterised in that text
Adding and/or decrypting for part is carried out in same mobile intelligent terminal equipment, is matched with the mobile intelligent terminal device id.
7. a kind of mobile intelligent terminal secure browser, including network data browse unit, local file administrative unit and data
Memory management unit, it is characterised in that also include：Secure configuration management unit, mode of operation administrative unit, file encryption-decryption list
First and seamless mode management unit；
The secure configuration management unit, is configured for user in mobile intelligent terminal to the mode of operation of browser, institute
Stating mode of operation includes general mode and safe mode；User switch browser mode of operation to general mode, can only check with
Open non-encrypted file；User switches browser mode of operation to safe mode, and the file data downloaded and/or cached is carried out
Encryption, while being saved in local；It is whole using random number and intelligent movable to the file of the download and/or the file data of caching
End equipment ID cryptographic Hash, to file data Partial encryption, is entered as encryption key using password as encryption key to random number
Row encryption, and the file data part after encryption is attached to, form new encryption file；
The mode of operation administrative unit, for the mode of operation to be switched into safe mode when opening local file, or
Person is used for user and switches browser mode of operation, and the mode of operation is switched into safe mould when downloading and/or being data cached
Formula；Or it is switched to general mode；When being switched to safe mode by general mode, user needs input validation password, and password is tested
Card is switched to safe mode after passing through by general mode；
The file encryption-decryption unit, is encrypted to downloading to the local file of mobile intelligent terminal, and encryption file is deposited
Storage is in secure storage areas；Or call automatically described file encryption-decryption unit to encryption file be decrypted check opening plus
Ciphertext part；Or be encrypted to being cached to the local cache file of mobile intelligent terminal, and encryption file is stored in safety
Memory block；
The seamless mode management unit, for when program is exited, to being stored in the local file of mobile intelligent terminal, caching
Safe erasing is carried out by the erasable back-filling way of multiple data with historical record.
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