CN102750480A - Automatic watermark embedding method and device for geographic data network sharing platform - Google Patents
Automatic watermark embedding method and device for geographic data network sharing platform Download PDFInfo
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- CN102750480A CN102750480A CN2012101962851A CN201210196285A CN102750480A CN 102750480 A CN102750480 A CN 102750480A CN 2012101962851 A CN2012101962851 A CN 2012101962851A CN 201210196285 A CN201210196285 A CN 201210196285A CN 102750480 A CN102750480 A CN 102750480A
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Abstract
The invention provides an automatic watermark information embedding method and a device for geographic data on a network sharing platform during a data application process. According to the method, copyright protection for the shared geographic data is performed based on a digital watermarking technique, identity of a user is confirmed during the data application process of the user, then basic information, IP address, application time and the like of the user are automatically obtained, the relevant information and the copyright information of the data are watermarked and automatically embedded into the data, and the problems of ineffective control of the data copyright and utilization tracking during a network sharing process of the geographic data are solved.
Description
Technical field
The invention belongs to geodata copyright protection field, be specifically related on the geodata network shared platform technology, to reach device geographical copyrights of data protection to the automatic embed watermark information of data.
Background technology
The construction of geodata network shared platform has changed the traditional services mode of present geodata, and the greatest benefit that promotes China's geography information ability of public service, performance geography information resource, the widespread use of going deep into of promotion geomatics industry are had vital role.For giving full play to the service of geodata shared platform, need use geodata with unit through different data call modes for different departments.Yet, obtaining data conveniently simultaneously, the safety problem of geodata is also more outstanding on the network shared platform.
The safeguard protection problem of geodata relates to various aspects such as national security, scientific and technical cooperation interchange and intellectual property protection, is one of key factor of restriction China economy, science and technology sustainable development.For ensureing the safety of geographical spatial data, country has formulated a series of relevant rules with army, like " mapping method ", " China's map publishing management way ", " about some regulations of China's topographic data externally are provided " etc.But, how reliable safety technique guarantee to be provided for carrying out these rules effectively, be the major issue that presses for solution at present.
In recent years, along with the develop rapidly of digitizing and network times, extremely urgent to the protection problem of the copyrights of data of distributing in the geographical data network shared platform.Digital watermark technology is the cutting edge technology that development in recent years is got up in the information security field, for the safety of geodata provides reliable solution.Digital watermark technology; Be meant and in digitized data content, embed secret watermark information; Combining closely and hide wherein through watermark and source data; Become the inseparable part of source data, the authenticity of come to confirm copyright owner, entitlement authentication thus, follow the tracks of abuse, authenticated digital content being originated, identification user etc. have important economy, military value and realistic meaning.Digital watermark technology had also obtained important application in recent years having obtained application comparatively widely aspect the safeguard protection in fields such as image, figure, video and audio frequency in the geodata safeguard protection.
Geodata network shared platform is used widely; Wherein geodata is the blood of shared platform; Yet the geodata copyright protection on geodata network shared platform does not also cause enough attention, shares thereby make geodata fail maximized realization safety.Therefore, research and develop on a kind of geodata network shared platform that the watermark flush mounting is imperative automatically, the research of this device has turned out to be and has solved that the geodata copyright protection puts forward on the geodata network shared platform.
Summary of the invention
The objective of the invention is to data supervision difficulty in the geodata network shared procedure; A kind of automatic watermark that the relatively weaker problem of the copyright protection of data is proposed embeds scheme; Data to application embed distributor's information and applicant's information automatically, have the copyrights of data protection, use tracer action.
The approach that the object of the invention realizes is: a kind of automatic embedding grammar of watermark of geodata network shared platform is characterized in that may further comprise the steps: extract applicant's information; Handle applicant's information through automatic watermark maker and obtain watermark information with corresponding distributor's information; Through automatic water mark embedding device automatic embed watermark information in the data of application; Offer the geodata that the applicant has watermark information.
Applicant's information comprises: user name, unit name, application time and IP address.
The process that obtains watermark information through automatic watermark maker comprises: generate the pseudorandom binary sequence; The pseudorandom binary sequence is carried out scrambling encryption produce unique identification
With the sign that generates
Generating a length as key does
NBinary sequence
To identify through setting up the watermark information table
Set up mapping table with user profile of obtaining automatically and distributor's information.
Process through automatic water mark embedding device embed watermark information comprises: according to applicant's request for data type, select the watermark embedding method that is fit to; Automatically the watermark information that generates is embedded in the geodata.
A kind of automatic flush mounting of watermark of geodata network shared platform: it is characterized in that comprising: automatic watermark maker is used to handle applicant's information and obtains watermark information with corresponding distributor's information; Automatically water mark embedding device is used at the automatic embed watermark information of the data of application.
Advantage of the present invention is: in geodata network shared procedure, and fast automatic ground of ability embed watermark information, thus the copyright information of specified data and user's information can be strengthened safety of data; The present invention can reduce manually-operated, improves system's operability, and the geodata network is shared and distribution flow hommization more.This telescopiny and data sharing process are synchronous, have real-time, do not influence the data sharing time.
Description of drawings
Fig. 1 is the process flow diagram of the automatic embedding grammar of watermark of a kind of geodata network of the present invention shared platform.
Fig. 2 is the present invention obtains watermark information through automatic watermark maker a process flow diagram.
Fig. 3 is the process flow diagram that the present invention passes through automatic water mark embedding device embed watermark information.
Specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
In geodata network shared platform data application process; At first extract applicant's information (comprising: user name, unit name, application time and IP address etc.); Setting up mapping table again through the automatic generation of automatic watermark maker generation watermark identifier sets up corresponding with applicant's information and distributor's information; At the automatic embed watermark information of the automatic water mark embedding device of middle use of the data of application, offer the geodata that the applicant is contained watermark information at last then.Carrying out that geodata is followed the tracks of or during the copyright protection inspection, can adopt with watermark embed process in the flow process of contrary data are carried out the detection and the extraction of watermark information.
The automatic watermark flush mounting of geodata network shared platform comprises like the automatic watermark information maker of Fig. 2 with like the automatic water mark embedding device of Fig. 3.
Automatically the generation step of watermark maker is: at first; Generate the pseudorandom binary sequence; The line shuffle of going forward side by side is encrypted and is produced unique identification
; Then, the sign
that generates is generated the binary sequence
that length is
as key; At last; User profile that will identify
through setting up the watermark information table and obtain automatically and distributor's information are set up mapping table, are used for watermark detection.
Automatically the embedding step of water mark embedding device is: according to the data type that the applicant applied for; Select suitable watermark embedding method; Automatically the watermark information that generates is embedded in the geodata; The watermark geodata that contains that generates is distributed to the applicant, accomplishes the copyright protection and the trace flow of geodata network shared platform geodata.
Claims (5)
1. the automatic embedding grammar of watermark of a geodata network shared platform is characterized in that may further comprise the steps:
Extract applicant's information;
Handle applicant's information through automatic watermark maker and obtain watermark information with corresponding distributor's information;
Through automatic water mark embedding device automatic embed watermark information in the data of application;
Offer the geodata that the applicant has watermark information.
2. the automatic embedding grammar of watermark of geodata network shared platform according to claim 1 is characterized in that said applicant's information comprises: user name, unit name, application time and IP address.
3. the automatic embedding grammar of watermark of geodata network shared platform according to claim 1 is characterized in that the said process that obtains watermark information through automatic watermark maker comprises:
Generate the pseudorandom binary sequence;
The pseudorandom binary sequence is carried out scrambling encryption produce unique identification key;
The sign key that generates is generated a length as key does
NBinary sequence
W
To identify through setting up the watermark information table
KeySet up mapping table with user profile of obtaining automatically and distributor's information.
4. the automatic embedding grammar of watermark of geodata network shared platform according to claim 1 is characterized in that said process through automatic water mark embedding device embed watermark information comprises:
According to applicant's request for data type, select the watermark embedding method that is fit to;
Automatically the watermark information that generates is embedded in the geodata.
5. the automatic flush mounting of watermark of a geodata network shared platform: it is characterized in that comprising:
Automatically the watermark maker is used to handle applicant's information and obtains watermark information with corresponding distributor's information;
Automatically water mark embedding device is used at the automatic embed watermark information of the data of application.
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| CN201210196285.1A CN102750480B (en) | 2012-05-23 | 2012-05-23 | The automatic embedding grammar of watermark of geographic data network shared platform and device |
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| CN201210196285.1A CN102750480B (en) | 2012-05-23 | 2012-05-23 | The automatic embedding grammar of watermark of geographic data network shared platform and device |
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Cited By (7)
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| CN102968758A (en) * | 2012-12-14 | 2013-03-13 | 福建伊时代信息科技股份有限公司 | Method and system for processing digital watermarking |
| CN103123673A (en) * | 2013-03-12 | 2013-05-29 | 山东省计算中心 | Effective protective method of digital media copyright in web environment |
| CN105404797A (en) * | 2015-10-26 | 2016-03-16 | 华侨大学 | Dual-redundancy based active network flow digital watermarking method |
| CN106228038A (en) * | 2016-07-20 | 2016-12-14 | 张富 | A kind of copyright method for tracing based on BIM model |
| CN107347071A (en) * | 2017-07-11 | 2017-11-14 | 国网上海市电力公司 | A kind of electric power data secure sharing method and method for tracing |
| CN107480481A (en) * | 2017-09-12 | 2017-12-15 | 成都锐成芯微科技股份有限公司 | A kind of method that watermark is automatically generated on IP |
| CN112383616A (en) * | 2020-11-12 | 2021-02-19 | 贝壳技术有限公司 | Data sharing method and device, electronic equipment and storage medium |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968758A (en) * | 2012-12-14 | 2013-03-13 | 福建伊时代信息科技股份有限公司 | Method and system for processing digital watermarking |
| CN102968758B (en) * | 2012-12-14 | 2016-08-03 | 福建伊时代信息科技股份有限公司 | The processing method of digital watermarking and system |
| CN103123673A (en) * | 2013-03-12 | 2013-05-29 | 山东省计算中心 | Effective protective method of digital media copyright in web environment |
| CN105404797A (en) * | 2015-10-26 | 2016-03-16 | 华侨大学 | Dual-redundancy based active network flow digital watermarking method |
| CN105404797B (en) * | 2015-10-26 | 2018-10-16 | 华侨大学 | A kind of Active Networks streaming digital water mark method based on dual redundant |
| CN106228038A (en) * | 2016-07-20 | 2016-12-14 | 张富 | A kind of copyright method for tracing based on BIM model |
| CN107347071A (en) * | 2017-07-11 | 2017-11-14 | 国网上海市电力公司 | A kind of electric power data secure sharing method and method for tracing |
| CN107347071B (en) * | 2017-07-11 | 2021-02-23 | 国网上海市电力公司 | Power data security sharing method and tracking method |
| CN107480481A (en) * | 2017-09-12 | 2017-12-15 | 成都锐成芯微科技股份有限公司 | A kind of method that watermark is automatically generated on IP |
| CN107480481B (en) * | 2017-09-12 | 2020-11-10 | 成都锐成芯微科技股份有限公司 | Method for automatically generating watermark on IP |
| CN112383616A (en) * | 2020-11-12 | 2021-02-19 | 贝壳技术有限公司 | Data sharing method and device, electronic equipment and storage medium |
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| CN102750480B (en) | 2015-10-28 |
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Effective date of registration: 20201231 Address after: 215000 building 3, 88 Xianshi Road, Changshu hi tech Industrial Development Zone, Suzhou City, Jiangsu Province Patentee after: Changshu Zijin Intellectual Property Service Co.,Ltd. Address before: 215500 No. 8 Jindu Road, Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: CHANGSHU NANJING NORMAL UNIVERSITY DEVELOPMENT RESEARCH INSTITUTE Co.,Ltd. |