CN114969681A - Method and system for generating webpage invisible watermark - Google Patents
Method and system for generating webpage invisible watermark Download PDFInfo
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- CN114969681A CN114969681A CN202210387810.1A CN202210387810A CN114969681A CN 114969681 A CN114969681 A CN 114969681A CN 202210387810 A CN202210387810 A CN 202210387810A CN 114969681 A CN114969681 A CN 114969681A
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/16—Program or content traceability, e.g. by watermarking
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
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- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
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Abstract
The invention discloses a method and a system for generating a webpage invisible watermark, which belong to the technical field of computer software, and aim to solve the technical problem of protecting webpage information and avoiding webpage information leakage or stealing intellectual property, and the technical scheme is as follows: the method is characterized in that a hidden watermark which cannot be perceived by human eyes is arranged in a webpage by utilizing the CSS function of a browser, so that the aim of protecting webpage information is fulfilled; the method comprises the following specific steps: s1, acquiring watermark character information to be added; s2, adding a mask layer and an invisible watermark in the webpage; s3, restoring watermark information by using the screenshot: when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
Description
Technical Field
The invention relates to the field of computer software technology development, in particular to a method and a system for generating a webpage invisible watermark.
Background
In the current society, web pages are already important carriers for information dissemination. In the process of webpage information dissemination, the phenomenon of uncontrollable dissemination can occur due to wide user range. For the purpose of information confidentiality or intellectual property protection, watermark information is added to a webpage by many websites, so that a user is prompted to protect the information. At present, the common method is to generate a display watermark at a webpage end to prompt an accessor that information is protected. This has the following disadvantages:
firstly, the access experience of a user is influenced, the user usually has watermark information of a full screen when viewing a webpage, and the repeated information causes troubles to the user;
secondly, when a user who attempts to capture the leaked information or steal the copyright sees the displayed watermark in the content, the watermark is usually removed by means of PS (picture editing tool) and the like, and the information cannot be protected.
Therefore, how to protect the web page information and avoid the leakage of the web page information or the theft of intellectual property is a technical problem to be solved urgently at present.
Disclosure of Invention
The technical task of the invention is to provide a method and a system for generating a webpage invisible watermark, which are used for solving the problems of protecting webpage information and avoiding leakage of the webpage information or stealing of intellectual property rights.
The technical task of the invention is realized in the following way, a method for generating the invisible watermark of the webpage is provided, the method utilizes the CSS function of a browser to set the invisible watermark which can not be sensed by human eyes in the webpage, thereby achieving the purpose of protecting the webpage information; the method comprises the following specific steps:
s1, acquiring watermark character information to be added;
s2, adding a mask layer and an invisible watermark in the webpage;
s3, restoring watermark information by using the screenshot: when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
Preferably, the acquiring of the watermark text information to be added in step S1 is specifically as follows:
s101, when a webpage is developed, acquiring related information of a login user and a publisher through js, and executing a step S102;
s102, judging whether the webpage needs to be logged in:
if yes, executing step S102;
if not, jumping to the step S103;
s102, acquiring a user name, a user ID or other user identity information as watermark character information at a webpage end for the purpose of information confidentiality, and executing a step S104;
s103, customizing watermark character information such as website domain names, owner information and the like by the webpage, and executing the step S104;
s104, acquiring webpage watermark character information, and executing the step S105;
and S105, adding a webpage watermark module which is made by utilizing watermark character information on the webpage.
Preferably, the step S2 of adding the mask layer and the invisible watermark to the web page is as follows:
s201, adding a mask layer module for the webpage by using a CSS;
s202, calculating the area of a mask layer by utilizing javascript (browser scripting language) to calculate the number of subsequent webpage watermark modules;
s203, newly building a single invisible watermark module under the created shielding layer module;
s204, after a single invisible watermark playing module is added, calculating the area of the single invisible watermark;
s205, calculating the number of the invisible watermark modules covering the whole screen area by dividing the area of the mask layer by the area of the single invisible watermark and taking an integer downwards;
s206, a single invisible watermarking module is repeatedly copied through javascript to obtain all the invisible watermarking modules which are calculated in the step S205 and need to be added;
s207, adding the invisible watermark module to be added into the mask layer, namely completely covering the watermark in the mask layer;
and S208, after the webpage is released, the visible area of the webpage is completely covered by the invisible watermark, so that the aim of protecting the webpage information is fulfilled.
Preferably, the mask layer module in step S201 is set as a transparent background, a DOM element of the mask layer module is added under the html body node and is set in a CSS style for the html body node source, and the mask layer module completely covers a web page display area, i.e., a screen display area;
the CSS style setting content of the mask layer module is as follows:
arranging a transparent mask layer on the whole webpage, wherein the length and the width of the mask layer are consistent with those of the whole webpage; the mask layer module is transparent and arranged at the topmost layer of all the display elements, and the display and click effects of other elements in the page are not influenced.
Preferably, the DOM element of the invisible watermark module contains watermark text information to be added to the webpage; and (3) setting a CSS (cascading Style sheets) style for the invisible watermarking module, which comprises the following steps:
controlling the pattern of the invisible watermark: setting the sum space of the watermark characters;
the color of the characters of the invisible watermarking module is set through color: rgba (0,0,0, 0.005).
Preferably, the restoring of the watermark information by using the screenshot in step S3 is specifically as follows:
s301, opening the revealed webpage screenshot through a PS or other picture editing tools;
s302, editing the image brightness or exposure of the screenshot in the PS, and restoring the webpage screenshot into watermark character information;
s303, the user identifies the webpage information through the watermark character information, and achieves the purpose of secret-related information management or intellectual property protection according to the identified character information.
Preferably, the screenshot is edited in the PS in step S302 in the following specific manner:
setting pictures through image adjustment and brightness/contrast, setting a brightness parameter to be-150 and a contrast parameter to be-100;
and secondly, setting the picture through image, adjustment and exposure, and setting a gray coefficient correction parameter to be 0.01 in the exposure option.
A system for generating invisible watermarks of web pages comprises,
the acquisition module is used for acquiring watermark character information to be added;
the adding module is used for adding a mask layer and an invisible watermark in the webpage;
and the restoring module is used for restoring the watermark information by using the screenshot, namely when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
An electronic device, comprising: a memory and at least one processor;
wherein the memory has stored thereon a computer program;
the at least one processor executes the computer program stored in the memory, so that the at least one processor executes the method for generating the invisible watermark of the webpage.
A computer-readable storage medium having stored thereon a computer program executable by a processor to implement the method for generating invisible watermarks of web pages as described above.
The method and the system for generating the webpage invisible watermark have the following advantages that:
the method comprises the steps that the CSS function of a browser is utilized, the invisible watermark which cannot be perceived by human eyes and the website protecting information are arranged in a webpage, and after the webpage information is leaked or the intellectual property is stolen, the user information can be positioned according to a screenshot, so that the aim of protecting the webpage information by the invisible watermark is fulfilled;
secondly, the webpage visitor cannot perceive the existence of the invisible watermark and has no difference with the common webpage access;
thirdly, the watermark is not displayed in the webpage, and the website content can be better displayed;
when the webpage screenshot information is leaked or used maliciously, the technical processing can be carried out on the screenshot, and the watermark information in the screenshot can be restored;
the method can be used for website information management of security-related units, product knowledge product protection and the like;
the method is mainly applied to the web page of the web end, the invisible watermark which is not perceived by the user can be added to the web page, a web page developer can customize watermark information, the user cannot perceive the watermark when browsing after the invisible watermark is added, and compared with the traditional watermark display, the method can increase the user access experience.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a block diagram of a process for obtaining watermark text information to be added;
FIG. 2 is a block diagram of a process for adding a mask layer and an invisible watermark to a web page;
fig. 3 is a flow chart of restoring watermark information using screenshots.
Detailed Description
The method and system for generating invisible watermarks of web pages of the present invention are described in detail below with reference to the drawings and specific embodiments of the specification.
Example 1:
the method for generating the invisible watermark of the webpage provided by the invention has the advantages that the invisible watermark which cannot be perceived by human eyes is arranged in the webpage by utilizing the CSS function of the browser, so that the aim of protecting webpage information is fulfilled; the method comprises the following specific steps:
s1, acquiring watermark text information to be added;
s2, adding a mask layer and an invisible watermark in the webpage;
s3, restoring watermark information by using the screenshot: when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
As shown in fig. 1, the obtaining of the watermark text information to be added in step S1 in this embodiment is specifically as follows:
s101, acquiring related information of a login user and a publisher through js when a webpage is developed, and executing the step S102;
s102, judging whether the webpage needs to be logged in:
if yes, executing step S102;
if not, jumping to the step S103;
s102, acquiring a user name, a user ID or other user identity information as watermark character information at a webpage end for the purpose of information confidentiality, and executing a step S104;
s103, customizing watermark character information such as website domain names, owner information and the like by the webpage, and executing the step S104;
s104, acquiring webpage watermark character information, and executing the step S105;
and S105, adding a webpage watermark module which is made by utilizing watermark character information on the webpage.
As shown in fig. 2, the adding of the mask layer and the invisible watermark to the web page in step S2 in this embodiment is as follows:
s201, adding a mask layer module for the webpage by using a CSS;
s202, calculating the area of a mask layer by utilizing javascript (browser scripting language) to calculate the number of subsequent webpage watermark modules;
s203, newly building a single invisible watermark module under the created shielding layer module;
s204, after a single invisible watermark playing module is added, calculating the area of the single invisible watermark;
s205, because the watermark usually covers the whole screen, the purpose of information protection can be achieved, so that a single watermark module needs to be copied in multiple ways to completely cover the screen; dividing the area of the mask layer by the area of a single invisible watermark and taking an integer downwards to calculate the number of the invisible watermark modules covering the whole screen area;
s206, a single invisible watermarking module is repeatedly copied through javascript to obtain all the invisible watermarking modules which are calculated in the step S205 and need to be added;
s207, adding the invisible watermark module to be added into the mask layer, namely completely covering the watermark in the mask layer;
and S208, after the webpage is released, the visible area of the webpage is completely covered by the invisible watermark, so that the aim of protecting the webpage information is fulfilled.
In this embodiment, the mask layer module in step S201 is set to be a transparent background, a DOM element of the mask layer module is added under the html body node, and the html body node source is set by a CSS style, and the mask layer module completely covers a web page display area, i.e., a screen display area;
the CSS style setting content of the mask layer module is as follows:
arranging a transparent mask layer on the whole webpage, wherein the length and the width of the mask layer are consistent with those of the whole webpage; the mask layer module is transparent and arranged at the topmost layer of all the display elements, and the display and click effects of other elements in the page are not influenced.
The CSS code for the mask layer module is:
the DOM element of the invisible watermark module in the embodiment comprises watermark character information to be added to a webpage; and (3) setting a CSS (cascading Style sheets) style for the invisible watermarking module, which comprises the following steps:
controlling the pattern of the invisible watermark: setting the sum space of the watermark characters;
the color of the characters of the invisible watermarking module is set through color: rgba (0,0,0, 0.005). After the color is set, when the color is displayed on an electronic screen, the existence of the watermark module cannot be sensed by human eyes, so that the aim of invisible watermarking can be fulfilled.
The following CSS patterns are set for the invisible watermarking module:
as shown in fig. 3, in step S3, the method for restoring watermark information by using screenshot specifically includes the following steps:
s301, opening the revealed webpage screenshot through a PS or other picture editing tools;
s302, editing the image brightness or exposure of the screenshot in the PS, and restoring the webpage screenshot into watermark character information;
s303, the user identifies the webpage information through the watermark character information, and achieves the purpose of secret-related information management or intellectual property protection according to the identified character information.
In this embodiment, in step S302, the screenshot is edited in the PS in the following specific manner:
setting pictures through image adjustment and brightness/contrast, setting a brightness parameter to be-150 and a contrast parameter to be-100;
and secondly, setting the picture through image, adjustment and exposure, and setting a gray coefficient correction parameter to be 0.01 in the exposure option.
Example 2:
the system for generating the invisible watermark of the webpage of the embodiment comprises,
the acquisition module is used for acquiring watermark character information to be added;
the adding module is used for adding the mask layer and the invisible watermark in the webpage;
and the restoring module is used for restoring the watermark information by using the screenshot, namely when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
Example 3:
the present embodiment further provides an electronic device, including: a memory and a processor;
wherein the memory stores computer execution instructions;
the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for generating the invisible watermark of the webpage in any embodiment of the invention.
Example 4:
the present embodiment also provides a computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are loaded by a processor, so that the processor executes the method for generating the invisible watermark of the web page in any embodiment of the present invention. Specifically, a system or an apparatus equipped with a storage medium on which software program codes that realize the functions of any of the above-described embodiments are stored may be provided, and a computer (or a CPU or MPU) of the system or the apparatus is caused to read out and execute the program codes stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RYM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer via a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments may be implemented not only by executing the program code read out by the computer, but also by causing an operating system or the like operating on the computer to perform a part or all of the actual operations based on instructions of the program code.
Further, it is to be understood that the program code read out from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion unit connected to the computer, and then causes a CPU or the like mounted on the expansion board or the expansion unit to perform part or all of the actual operations based on instructions of the program code, thereby realizing the functions of any of the above-described embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A webpage invisible watermark generation method is characterized in that the method utilizes the CSS function of a browser to set an invisible watermark which cannot be perceived by human eyes in a webpage so as to achieve the aim of webpage information protection; the method comprises the following specific steps:
s1, acquiring watermark character information to be added;
s2, adding a mask layer and an invisible watermark in the webpage;
s3, restoring watermark information by using the screenshot: when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
2. The method for generating invisible watermarks of web pages according to claim 1, wherein the step S1 of obtaining the text information of the watermarks to be added specifically includes the following steps:
s101, acquiring related information of a login user and a publisher through js when a webpage is developed, and executing the step S102;
s102, judging whether the webpage needs to be logged in:
if yes, executing step S102;
if not, jumping to the step S103;
s102, acquiring a user name, a user ID or other user identity information as watermark character information at a webpage end, and executing a step S104;
s103, customizing watermark character information by the webpage, and executing the step S104;
s104, acquiring webpage watermark character information, and executing the step S105;
and S105, adding a webpage watermark module which is made by utilizing watermark character information on the webpage.
3. The method for generating invisible watermarks for web pages according to claim 1, wherein the step S2 of adding the mask layer and the invisible watermarks to the web page includes the following steps:
s201, adding a mask layer module for the webpage by using a CSS;
s202, calculating the area of the mask layer by utilizing javascript, and calculating the number of subsequent webpage watermark modules;
s203, newly building a single invisible watermark module under the created shielding layer module;
s204, after a single invisible watermark playing module is added, calculating the area of the single invisible watermark;
s205, calculating the number of the invisible watermark modules covering the whole screen area by dividing the area of the mask layer by the area of the single invisible watermark and taking an integer downwards;
s206, a single invisible watermarking module is repeatedly copied through javascript to obtain all the invisible watermarking modules which are calculated in the step S205 and need to be added;
s207, adding the invisible watermark module to be added into the mask layer, namely completely covering the watermark in the mask layer;
and S208, after the webpage is released, the visible area of the webpage is completely covered by the invisible watermark, so that the aim of protecting the webpage information is fulfilled.
4. The method for generating the invisible watermark of the webpage as claimed in claim 3, wherein the mask layer module in step S201 is set as a transparent background, DOM elements of the mask layer module are added under HTML.BODY nodes and are set in CSS style for the HTML.BODY nodes, and the mask layer module completely covers a webpage display area, namely a screen display area;
the CSS style setting content of the mask layer module is as follows:
arranging a transparent mask layer on the whole webpage, wherein the length and the width of the mask layer are consistent with those of the whole webpage; the mask layer module is transparent and arranged at the topmost layer of all the display elements, and the display and click effects of other elements in the page are not influenced.
5. The method for generating the invisible watermark of the webpage according to claim 3, wherein the DOM element of the invisible watermark module comprises watermark text information to be added to the webpage; setting a CSS style for the invisible watermarking module, which comprises the following steps:
controlling the pattern of the invisible watermark: setting the sum space of the watermark characters;
the color of the characters of the invisible watermarking module is set through color: rgba (0,0,0, 0.005).
6. The method for generating the invisible watermark of the webpage according to claim 1, wherein the step S3 of restoring the watermark information by using the screenshot specifically includes:
s301, opening the leaked webpage screenshot through a PS or other picture editing tools;
s302, editing the image brightness or exposure of the screenshot in the PS, and restoring the webpage screenshot into watermark character information;
s303, the user identifies the webpage information through the watermark character information, and achieves the purpose of secret-related information management or intellectual property protection according to the identified character information.
7. The method for generating the invisible watermark of the webpage according to claim 6, wherein the screenshot is edited in the PS in step S302 in the following specific way:
setting pictures through image adjustment and brightness/contrast, setting a brightness parameter to be-150 and a contrast parameter to be-100;
and secondly, setting the picture through image, adjustment and exposure, and setting a gray coefficient correction parameter to be 0.01 in the exposure option.
8. A system for generating invisible watermarks on web pages is characterized in that the system comprises,
the acquisition module is used for acquiring watermark character information to be added;
the adding module is used for adding a mask layer and an invisible watermark in the webpage;
and the restoring module is used for restoring the watermark information by using the screenshot, namely when the information of the webpage is leaked by the screenshot, the information source is checked by restoring the watermark information.
9. An electronic device, comprising: a memory and at least one processor;
wherein the memory has stored thereon a computer program;
the at least one processor executes the computer program stored in the memory, so that the at least one processor executes the method for generating the invisible watermark of the webpage according to any one of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored, the computer program being executable by a processor to implement the method for generating the invisible watermark of the web page according to any one of claims 1 to 7.
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| CN202210387810.1A CN114969681A (en) | 2022-04-14 | 2022-04-14 | Method and system for generating webpage invisible watermark |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116756708A (en) * | 2023-05-30 | 2023-09-15 | 佛山众陶联供应链服务有限公司 | Protection method for variable granularity of digital product page copyright |
| CN117076003A (en) * | 2023-10-13 | 2023-11-17 | 深圳竹云科技股份有限公司 | Method, device and computer equipment for generating application page watermark |
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2022
- 2022-04-14 CN CN202210387810.1A patent/CN114969681A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116756708A (en) * | 2023-05-30 | 2023-09-15 | 佛山众陶联供应链服务有限公司 | Protection method for variable granularity of digital product page copyright |
| CN116756708B (en) * | 2023-05-30 | 2023-12-05 | 佛山众陶联供应链服务有限公司 | Protection method for variable granularity of digital product page copyright |
| CN117076003A (en) * | 2023-10-13 | 2023-11-17 | 深圳竹云科技股份有限公司 | Method, device and computer equipment for generating application page watermark |
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