CN104217173A - Method of encrypting data and files for browser - Google Patents
Method of encrypting data and files for browser Download PDFInfo
- Publication number
- CN104217173A CN104217173A CN201410427298.4A CN201410427298A CN104217173A CN 104217173 A CN104217173 A CN 104217173A CN 201410427298 A CN201410427298 A CN 201410427298A CN 104217173 A CN104217173 A CN 104217173A
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- data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
- G06F21/6263—Protecting personal data, e.g. for financial or medical purposes during internet communication, e.g. revealing personal data from cookies
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- 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 relates to a method of encrypting data and files for a browser. The method comprises the following steps that an encryption plug-in modifies a code for submitting data and/or uploading a file part in a page code, which returns to a user browser, of a Web website; when a user submits the data and/or uploads a file through the browser, the modified page code for submitting the data and/or uploading the file submits data to be submitted or the file data to be uploaded by the user to a local agent program of the user browser, the agent program calls a password module to encrypt the data to be submitted or the file data to be uploaded, and then the browser submits or uploads the encrypted data or the file data to the Web website, or the agent program submits or uploads the encrypted data or the file data to the Web website. According to the method, the submitted data and/or the uploaded file data can be encrypted without modifying the Web website and calling the plug-in of the browser.
Description
Technical field
The invention belongs to field of information security technology, particularly a kind of data for browser and file encrypting method.
Background technology
Current file cloud stores day by day welcomed by the people, and people also can worry about to the safety of file uploading to cloud and store common platform: the concerning security matters leaving common platform in or the file relating to individual privacy likely due to assault, divulge a secret from stealing of inside, reveal.To the most effective protected mode of file leaving public cloud storage platform in be to store file be encrypted.But it is also incredible for being encrypted by the system of cloud storage platform, internal staff or operating agency stealing secret file cannot be prevented because do like this.Therefore, be by the side of uploading, file is encrypted when files passe to the most effective protected mode of cloud storage file, such as adopt the key of uploader or password to file encryption.The client that current many clouds store is exactly common browser, therefore, just relates to the file encryption problem to being uploaded by browser to the encryption of upload file.
Email has been indispensable part in our daily life, work at present.The mailing system that we use is much the system provided by common electronic mailbox service business.We are when the mail service using common electronic mailbox service business to provide, the mail that we send or receive comprises its annex all will through open internet, if Email comprises its annex concerning security matters sensitive information, so just likely intercepted and captured by people in its transmitting procedure, monitor and cause divulging a secret; The mail that we send or receive comprises its annex and all can be kept at common electronic mailbox service system, if the Email being stored in common electronic mailbox service comprises its annex relate to sensitive information, also there is the risk being stolen, revealing.Similarly, the most effective means preventing Email from divulging a secret comprises its annex to Email to be encrypted, as transmit leg uses the PKI of recipient to be encrypted mail and annex thereof when sending Email.Similarly, for common electronic mailbox, we often use browser to carry out mail sending and receiving, and therefore, this just relates to the problem be encrypted the data submitted to by browser and the file (mail namely sent by browser and annex) uploaded.
Except the situation that above-described needs are encrypted the data submitted to by browser, the file uploaded, also has the applicable cases that other needs many are encrypted the data submitted to by browser, the file uploaded.But, a not easy thing is encrypted to the data submitted to by browser, the file uploaded, has following technical matters to need to solve.
One is, due to safe limit, run page code in a browser, as various scripted code, the crypto module that can not directly call in the user's computing equipment of browser place is encrypted data, and browser plug-in (browser had is called control, as IE) must be called, call crypto module by browser plug-in.And develop browser plug-in problem and be: (1) uses the page code bad adaptability of plug-in unit, this is because the plug-in unit developed for the browser of different kernel technology used is different, the mode called is also different, be only suitable for specific browser, Plug-in as Firefox can not be used for IE (Internet Explorer), and the ActiveX of IE can not be used for Firefox; (2) if upload file is realized by Form, then page script program cannot intercept the file data uploaded, and also just cannot call plug-in unit and be encrypted the file data uploaded; (3) carry out if upload file reads local file by shell script, although can be encrypted upload file data by page script program, current not every browser all supports that script is to the read operation of local file.In a word, use browser plug-in to be encrypted data and there is inconvenience, bad adaptability, technical scheme complexity.
Two are, relating to browser submits to the Web site of data and upload file normally to dispose and had the website of a large number of users, in order to increase data and file encryption function, allow web site operator again develop and field system be almost impossible, and some website can think this be not they need solve problem.
The present invention will solve the cryptography issue being submitted to data and upload file by browser.In the inventive solutions, browser extension is a kind of possible enforcement technology, but it is pointed out that browser extension and browser plug-in are all the assemblies expanding browser function, and they are referred to as browser plug-in sometimes, but is different both them.Browser extension is the component software that can carry out pro-active intervention to browser page code, and browser plug-in can not carry out pro-active intervention to browser page code, can only viewed device page code call.
Summary of the invention
The object of the invention is to propose a kind of Web site not to be modified and without the need to calling the data that browser plug-in just can be submitted to by browser user or the method that the file uploaded is encrypted.
To achieve these goals, the technical solution adopted in the present invention is:
For data and the file encrypting method of browser, described method is as follows:
For user browser, an encryption plug-in unit and Agent are installed; Described encryption plug-in unit is the assembly (comprising browser extension extension, add-in add on and other assemblies can modified to the page code turning back to user browser) that a page code (comprising html text and shell script, as JavaScript, VBScript, RIA etc.) turning back to user browser to Web site modifies to realize submitting data and/or upload file encryption to; Described Agent is one and operates in browser place user's computing equipment (as computing machine, panel computer, cell phone etc.), the data using browser to submit to user and/or the file data uploaded is encrypted and to the program using the enciphered data of browser downloads to be decrypted process;
When user uses the specific webpage of the specific Web site of browser access (when accessing specific page URL), described encryption plug-in unit turns back to Web site in the page code of user browser submits to the code of data and/or upload file part to modify (submit to and correspond to general data, upload corresponding to file data);
When the specific webpage that user uses browser to pass through the specific Web site of accessing submits data and/or upload file to, the page code of amended submission data and/or upload file is encrypted the data that will submit to and/or the file data that will upload by Agent, and then the data that will submit to after encryption is submitted to Web site by browser or Agent and/or the file data that will upload after encryption is uploaded to Web site;
When user uses the specific webpage of the specific Web site of browser access, if turn back to the data including encryption in the content of pages of browser, then described browser encryption plug-in unit is first decrypted process by Agent to the enciphered data returned, and makes it to become expressly to be undertaken processing (such as showing) by browser again;
When the specific page of described specific Web site refers to encryption developing plug or Install and configure time institute for, Web page (described specific Web site and the specifically page can be one or more) to the Web site that the data submitted to and/or the file uploaded will be encrypted;
The page code of described amended submission data and/or upload file by communication mode (as HTTP) with as described in Agent carry out data interaction (comprise submit to ask, obtain result).
By the page code of amended submission data and/or upload file, the scheme that the data submitted to by browser user and/or the file uploaded are encrypted can be one of following scheme.
Scheme one:
The data that the page code of amended submission data and/or upload file will be submitted to and/or the file data that will upload submit to Agent by communication mode, call code component by Agent to be encrypted the data that will submit to and/or the file data that will upload, then the data that will submit to after encryption and/or the file data that will upload are turned back to browser, the data that will submit to after the encryption returned are submitted to Web site by browser and/or the file data that will upload after the encryption returned is uploaded to Web site.
Scheme two:
The data that the page code of amended submission data and/or upload file will be submitted to and/or the file data that will upload, session identification data (Session ID between browser and Web site, as Cookie, Form input field), data are submitted to and/or files passe address (URL, Uniform Resource Locator) and data are submitted to and/or file uploading method submits to Agent, call code component by Agent to be encrypted the data that will submit to and/or the file data that will upload, then by Agent by encryption after the data that will submit to be submitted to Web site and/or by encryption after the file data that will upload upload to Web site, the session identification data of the session between browser and Web site are included in the HTTP request of submission or uploading data, and session identification data are included in (as comprising Cookie or the Form input field of same Session ID) in HTTP request by according to way of submission originally.
Whether described encryption plug-in unit is the data (as being whether the PKCS7 data of Base64 coding) of encryption by the data that the form of data and coding determine to turn back to browser.
In order to ensure the safety of data submission or files passe, whether Agent is by query configuration information or verify the website certificate of Web site or determine to submit to the Web site of data and/or upload file to be believable by the service of inquiry trusted site, if, then submit data or upload file to Web site, otherwise, refusal.
Based on method of the present invention, by encryption plug-in unit, the page code that Web site turns back to browser is modified, thus when not revising Web site service system, realize the encryption to the data submitted to by browser and/or the file uploaded; Further, mutual by between amended page code and an Agent of browser this locality, thus when without the need to using the encryption realized when browser plug-in the data submitted to and/or the file uploaded.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment of the present invention 1.
Fig. 2 is the schematic diagram of embodiment of the present invention 2.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Encryption plug-in unit can realize with browser extension (extension) or add-in (add on) technological development.At this moment, encryption plug-in unit needs to develop for the expansion of different browsers or add-in technology, or utilizes existing browser extension or add-in Development of Framework, and this browser extension or add-in technology and framework can obtain at public resource platform.Encryption plug-in unit also can be a communication agent in network transmission channels between browser and Web site or filtrator.
Encryption plug-in unit amendment page code the scheme be encrypted the data submitted to or the file uploaded by Agent, can (see Fig. 1 and 2) in embodiment one and scheme two.For the embodiment of each scheme, relevant with the specific code of the page again, therefore, the explanation of some principles can only be provided at this, those skilled in the relevant art according to or explanation with reference to these principles carry out concrete enforcement.It is noted that concrete enforcement also has a lot of modes, but also other embodiment can be had.
For the enforcement of scheme one, submit to the embodiment of data (general data) part as follows.
If the data being submitted to Web site are submitted to by the Action of Form originally, then encrypt the path (URL) of the Action of plug-in unit amendment Form, pointed to local Agent, simultaneously, Agent is submitted to by HTTP together with data in the Action path of the Form before amendment, such as, the Action path of the Form before amendment is programmed in the request URL of the HTTP request submitting to Agent, or the Action path of the Form before amendment is submitted to Agent as Form input data (INPUT) newly increased by HTTP; After the encryption of the complete paired data of Agent, the data after encryption turned back to the data of browser and be submitted to Web site (being that POST or GET depends on mode originally) by automatic POST or the GET mode of Form data.
If the data being submitted to Web site are submitted to (as by Ajax, RIA) by shell script originally, then encrypt plug-in unit amendment page code and shell script, first data are submitted to Agent by HTTP by the page code revised and shell script to encrypt, Agent calls crypto module and turns back to browser to after the data encryption submitted to, and then the data after the encryption that returned by Agent of browser are submitted to Web site.
For the enforcement of scheme one upload file part, be at this moment only suitable for the situation of browser by shell script (as Ajax, RIA script) upload file.At this moment plug-in unit amendment page code and shell script is encrypted, by the shell script revised, file data is submitted to Agent by HTTP, after Agent completes the encryption to file data, file data after encryption is turned back to browser, and then by the shell script of browser, the file data after encryption is uploaded to Web site.
For the enforcement of scheme two, submit to the embodiment of data (general data) part as follows.
If the data being submitted to Web site are submitted to by the Action of Form originally, then encrypt the path of the Action of plug-in unit amendment Form, pointed to local Agent, simultaneously, Agent is submitted to by HTTP in the Action path of the Form of the session identification data between browser with Web site before amendment together with data, such as, the Action path of the Form before the session identification data between browser and Web site and amendment is programmed in the request URL of the HTTP request submitting to Agent, or the Action path of the Form before the session identification data between browser and Web site and amendment is inputted data as the Form newly increased and submits to Agent by HTTP, after the encryption of the complete paired data of Agent, data after encryption are submitted to Web site by the Action path according to the Form before amendment, and the session identification data between browser with Web site are submitted to together with data submission request by mode originally (as Cookie, Form input data).
If the data being submitted to Web site are submitted to (as Ajax, RIA) by shell script originally, then encrypt plug-in unit amendment page code and shell script, submit to path to submit to Agent by HTTP together with the session identification data between browser and Web site and data data by the shell script revised; After the encryption of the complete paired data of Agent, submit to path that the data after encryption are submitted to Web site according to data, and the session identification data between browser with Web site are submitted to by mode originally (as Cookie, Form input data) together with data submission request.
For the enforcement of scheme two upload file part, the embodiment of general data is similar with submitting to, and what just at this moment submit (uploading) to is file data, is not general data.
In addition, in the enforcement of above scheme one, two, if browser page adopts shell script (as JavaScript/Ajax) to submit data and/or upload file to originally, when then encryption plug-in unit adopts the data will submitted to by shell script and/or the file uploaded to be submitted to the scheme of Agent, need the problem solving cross-domain script (Cross Domain Script).About the problem how solving cross-domain script, in many disclosed data, there is introduction.
The exploitation of Agent can adopt any development technique exploitation being applicable to user's computing equipment, and the basis being included in existing HTTP Proxy program is developed.
Other unaccounted concrete technology are implemented, and are well-known, self-explantory for those skilled in the relevant art.
Claims (7)
1., for data and the file encrypting method of browser, it is characterized in that:
For user browser, an encryption plug-in unit and Agent are installed; Described encryption plug-in unit is the assembly that a page code turning back to user browser to Web site modifies to realize submitting data and/or upload file encryption to; Described Agent is one and operates in browser place user's computing equipment, the data using browser to submit to user and/or the file data uploaded is encrypted and to the program using the enciphered data of browser downloads to be decrypted process;
When user uses the specific webpage of the specific Web site of browser access, described encryption plug-in unit turns back to Web site in the page code of user browser submits to the code of data and/or upload file part to modify;
When the specific webpage that user uses browser to pass through the specific Web site of accessing submits data and/or upload file to, the page code of amended submission data and/or upload file is encrypted the data that will submit to and/or the file data that will upload by Agent, and then the data that will submit to after encryption is submitted to Web site by browser or Agent and/or the file data that will upload after encryption is uploaded to Web site;
When user uses the specific webpage of the specific Web site of browser access, if turn back to the data including encryption in the content of pages of browser, then described browser encryption plug-in unit is first decrypted process by Agent to the enciphered data returned, and makes it to become expressly to be processed by browser again;
When the specific page of described specific Web site refers to encryption developing plug or Install and configure time institute for, Web page to the Web site that the data of submission and/or the file uploaded will be encrypted;
The page code of described amended submission data and/or upload file carries out data interaction by communication mode and described Agent.
2. the data for browser according to claim 1 and file encrypting method, is characterized in that:
When user uses browser to submit data and/or upload file to by the specific webpage of specific Web site, the page code of amended submission data and/or upload file is encrypted the data that will submit to and/or the file data that will upload by Agent as follows, and then the data that will submit to after encryption is submitted to Web site by browser and/or the file data that will upload after encryption is uploaded to Web site:
The data that the page code of amended submission data and/or upload file will be submitted to and/or the file data that will upload submit to Agent by communication mode, call code component by Agent to be encrypted the data that will submit to and/or the file data that will upload, then the data that will submit to after encryption and/or the file data that will upload are turned back to browser, the data that will submit to after the encryption returned are submitted to Web site by browser and/or the file data that will upload after the encryption returned is uploaded to Web site.
3. the data for browser according to claim 1 and file encrypting method, is characterized in that:
When user uses browser to submit data and/or upload file to by the specific webpage of specific Web site, the page code of amended submission data and/or upload file is encrypted the data that will submit to and/or the file data that will upload by Agent as follows, and then the data that will submit to after encryption is submitted to Web site by Agent and/or the file data that will upload after encryption is uploaded to Web site:
The data that the page code of amended submission data and/or upload file will be submitted to and/or the file data that will upload, session identification data between browser and Web site, data are submitted to and/or files passe address and data are submitted to and/or file uploading method submits to Agent, call code component by Agent to be encrypted the data that will submit to and/or the file data that will upload, then by Agent by encryption after the data that will submit to be submitted to Web site and/or by encryption after the file data that will upload upload to Web site, the session identification data of the session between browser and Web site are included in the HTTP request of submission or uploading data, and session identification data are included in HTTP request by according to way of submission originally.
4. the data for browser according to claim 1 and file encrypting method, is characterized in that:
Whether described encryption plug-in unit is the data of encryption by the data that the form of data and coding determine to turn back to browser.
5. the data for browser according to claim 2 and file encrypting method, is characterized in that:
If the page before amendment is submit data to by the Action of Form originally, then encrypt plug-in unit and the Action path URL of the Form of the submission data in amended page code is pointed to Agent, and be programmed in the request URL of the HTTP request submitting to Agent in the Action path of the Form before amendment, or the Action path of the Form before amendment is submitted to Agent as the Form input data newly increased by the page code of amendment; After the encryption of the complete paired data of Agent, the data after encryption are turned back to browser and are submitted to Web site by automatic POST or the GET mode of Form data.
6. the data for browser according to claim 3 and file encrypting method, is characterized in that:
If the page before amendment is submit data and/or upload file to by the Action of Form originally, then encrypt plug-in unit and the Action path URL of the Form of the submission data in amended page code and/or upload file is pointed to Agent, and the Action path of the Form before the session identification data between browser and Web site and amendment is programmed in the request URL of the HTTP request submitting to Agent, or the Action path of the Form before the session identification data between browser and Web site and amendment is inputted data as the Form newly increased and submits to Agent by the page code of amendment.
7. the data for browser according to claim 3 and file encrypting method, is characterized in that:
Whether described Agent is by query configuration information or verify the website certificate of Web site or determine to submit to the Web site of data and/or upload file to be believable by the service of inquiry trusted site, if, then submit data or upload file to Web site, otherwise, refusal.
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| CN201410427298.4A CN104217173B (en) | 2014-08-27 | 2014-08-27 | A kind of data and file encrypting method for browser |
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| CN201410427298.4A CN104217173B (en) | 2014-08-27 | 2014-08-27 | A kind of data and file encrypting method for browser |
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| CN105812323A (en) * | 2014-12-30 | 2016-07-27 | Tcl集团股份有限公司 | Method and device for accessing data by crossing network domains |
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| WO2020019478A1 (en) * | 2018-07-27 | 2020-01-30 | 平安科技（深圳）有限公司 | Communication data encryption method and apparatus |
| CN110119634A (en) * | 2018-11-28 | 2019-08-13 | 熵加网络科技(北京)有限公司 | A method of with browser plug-in to text encryption and decryption |
| CN109711187A (en) * | 2018-11-29 | 2019-05-03 | 北京字节跳动网络技术有限公司 | Page processing method, device, computer readable storage medium and electronic equipment |
| CN110557507A (en) * | 2019-09-05 | 2019-12-10 | 曙光信息产业(北京)有限公司 | File transmission method and device and electronic equipment |
| CN113206838A (en) * | 2021-04-13 | 2021-08-03 | 武汉理工大学 | Data encryption and decryption method and system for Web system |
| CN113507479A (en) * | 2021-07-23 | 2021-10-15 | 上海颜硕信息科技有限公司 | Gateway type encryption and decryption transparent SDK technology for WEB codes and data |
| CN114866348A (en) * | 2022-07-06 | 2022-08-05 | 深圳市金政软件技术有限公司 | Data transmission method, device and equipment based on browser and storage medium |
| CN114866348B (en) * | 2022-07-06 | 2022-09-20 | 深圳市金政软件技术有限公司 | Data transmission method, device and equipment based on browser and storage medium |
| CN116992173A (en) * | 2023-09-28 | 2023-11-03 | 中孚信息股份有限公司 | Method and system for opening encrypted file by browser based on MV3 |
| CN116992173B (en) * | 2023-09-28 | 2023-12-15 | 中孚信息股份有限公司 | Method and system for opening encrypted file by browser based on MV3 |
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