CN102750480B - The automatic embedding grammar of watermark of geographic data network shared platform and device - Google Patents
The automatic embedding grammar of watermark of geographic data network shared platform and device Download PDFInfo
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- CN102750480B CN102750480B CN201210196285.1A CN201210196285A CN102750480B CN 102750480 B CN102750480 B CN 102750480B CN 201210196285 A CN201210196285 A CN 201210196285A CN 102750480 B CN102750480 B CN 102750480B
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Abstract
The invention provides about geodata in network shared platform; the method and apparatus of automatic embed watermark information in request for data process; method of the present invention carries out copyright protection based on digital watermark technology to the geodata shared; to its identity validation in user's request for data process; thus automatic acquisition user basic information, IP address, application time etc.; these relevant informations and copyrights of data information generating watermark be automatically embedded in data, solving in current geographic data network shared procedure can not effective control data copyright and use the problem of tracking.
Description
Technical field
The invention belongs to geodata copyright protection field, be specifically related to the technology to the automatic embed watermark information of data in geographic data network shared platform, to reach the device to geographical copyright protection.
Background technology
The construction of geographic data network shared platform changes the traditional services mode of current geodata, to promoting China's geography information ability of public service, playing the greatest benefit of geographic information resources, promoting that the widespread use of going deep into of geomatics industry has vital role.For giving full play to the service of geodata shared platform, need for different departments and unit use geodata by different data call modes.But in acquisition data conveniently simultaneously, in network shared platform, the safety problem of geodata is also more outstanding.
The safety protection problem of geodata relates to the various aspects such as national security, scientific and technical cooperation interchange and intellectual property protection, is one of the key factor of restriction China economy, science and technology sustainable development.For ensureing the safety of geographical spatial data, country and army have formulated a series of relevant regulation, as " mapping method ", " China's Map publish management method ", " the some regulations about externally providing China's topographic data " etc.But how to provide reliable safety technique guarantee for effectively performing these regulations, be major issue in the urgent need to address 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 geographic data network shared platform.Digital watermark technology is the cutting edge technology that in information security field, development in recent years is got up, and the safety for geodata provides reliable solution.Digital watermark technology, refer to and embed steganographic watermark information in digitized data content, combining closely and hiding wherein by watermark and source data, become the inseparable part of source data, determine the authenticity, identification user etc. in copyright owner, entitlement certification, tracking abuse, authenticated digital content source thus, there is important economy, military value and realistic meaning.Digital watermark technology achieves and applies comparatively widely in the safeguard protection in the fields such as image, figure, Audio and Video, have also been obtained important application in recent years in geodata safeguard protection.
Geographic data network shared platform is used widely; wherein geodata is the blood of shared platform; but the geodata copyright protection in geographic data network shared platform does not also cause enough attention, thus geodata is made to fail maximizedly to realize safe sharing.Therefore, research and develop automatic watermark embedding device in a kind of geographic data network shared platform imperative, the research of this device has turned out to be geographical copyright protection in solution geographic data network shared platform and has put forward.
Summary of the invention
The object of the invention is for data supervision difficulty in geographic data network shared procedure; the problem weaker to the copyright protection of data and the automatic watermark embedment scheme of one proposed; distributor's information and applicant's information are embedded automatically to the data of application, there is copyright protection, use tracer action.
The approach that the object of the invention realizes is: a kind of automatic embedding grammar of watermark of geographic data network shared platform, is characterized in that comprising the following steps: extract applicant's information; Watermark information is obtained by automatic watermark generator process applicant information and corresponding distributor's information; By automatic water mark embedding device automatic embed watermark information in the data of application; Be supplied to the geodata of applicant with watermark information.
Applicant's information comprises: user name, unit name, application time and IP address.
The process being obtained watermark information by automatic watermark generator is comprised: generate pseudorandom binary sequence; Scrambling encryption is carried out to pseudorandom binary sequence and produces unique identification
; By the mark generated
as secret generating length be
nbinary sequence
; To identify by setting up watermark information table
mapping table is set up with the user profile of automatic acquisition and the information of distributor.
Comprised by the process of automatic water mark embedding device embed watermark information: according to the request for data type of applicant, select the watermark embedding method be applicable to; Automatically the watermark information generated is embedded in geodata.
The automatic flush mounting of watermark of geographic data network shared platform: it is characterized in that comprising a: watermark generator automatically, obtains watermark information for the treatment of applicant's information and corresponding distributor's information; Automatic water mark embedding device, for embed watermark information automatic in the data of application.
Advantage of the present invention is: in geographic data network shared procedure, energy fast automatic ground embed watermark information, thus determines copyright information and user's information of data, can strengthen the security of data; The present invention can reduce manual operation, improves system operability, and geographic data network is shared and distribution flow hommization more.This telescopiny is synchronous with data sharing process, has real-time, does not affect the data sharing time.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the automatic embedding grammar of watermark of a kind of geographic data network of the present invention shared platform.
Fig. 2 is that the present invention obtains the process flow diagram of watermark information by automatic watermark generator.
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 illustrated.
In geographic data network shared platform data application process, first the information (comprising: user name, unit name, application time and IP address etc.) of applicant is extracted, generate automatic generating watermark mark by automatic watermark generator to set up mapping table again and set up corresponding with applicant's information and distributor's information, then in the data of application, use the automatic embed watermark information of automatic water mark embedding device, be finally supplied to the geodata that applicant contains watermark information.When carrying out geodata tracking or copyright protection checks, detection and the extraction of with the flow process of contrary in watermark embed process, data being carried out to watermark information can be adopted.
The automatic watermark embedding device of geographic data network shared platform, comprises as the automatic watermark information maker of Fig. 2 and the automatic water mark embedding device as Fig. 3.
The generation step of automatic watermark generator is: first, generates pseudorandom binary sequence, and line shuffle of going forward side by side encryption produces unique identification
, then, by the mark generated
as secret generating length be
binary sequence
; Finally, will identify by setting up watermark information table
mapping table is set up, for watermark detection with the user profile of automatic acquisition and the information of distributor.
The embedding step of automatic water mark embedding device is the data type of applying for according to applicant; select the watermark embedding method be applicable to; automatically the watermark information generated is embedded in geodata; be distributed to applicant by what generate containing watermark geodata, complete copyright protection and the trace flow of geographic data network shared platform geodata.
Claims (1)
1. the automatic embedding grammar of the watermark of geographic data network shared platform, is characterized in that comprising the following steps:
Extract applicant's information;
Watermark information is obtained by automatic watermark generator process applicant information and corresponding distributor's information;
By automatic water mark embedding device automatic embed watermark information in the data of application;
Be supplied to the geodata of applicant with watermark information;
Described applicant's information comprises: user name, unit name, application time and IP address;
The described process obtaining watermark information by automatic watermark generator process applicant information and corresponding distributor's information comprises:
Generate pseudorandom binary sequence;
Scrambling encryption is carried out to pseudorandom binary sequence and produces unique identification key;
Be the binary sequence of N using the mark key of generation as secret generating length
w;
Mapping table is set up by identifying key and the user profile of automatic acquisition and the information of distributor by setting up watermark information table;
The described process by automatic water mark embedding device automatic embed watermark information in the data of application comprises:
According to the request for data type of applicant, select the watermark embedding method be applicable to;
Automatically the watermark information generated is embedded in geodata.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN102750480B true CN102750480B (en) | 2015-10-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106228038B (en) * | 2016-07-20 | 2018-03-09 | 张富 | A kind of copyright method for tracing based on BIM models |
| 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 |
| 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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| CN101714195A (en) * | 2009-07-22 | 2010-05-26 | 北京创原天地科技有限公司 | Digital certificate-based novel digital copyright protection method and device |
| CN101989324A (en) * | 2009-08-03 | 2011-03-23 | 成都宇飞信息工程有限责任公司 | Information security system based on computer and mobile storage device |
| CN102156952A (en) * | 2011-03-08 | 2011-08-17 | 南京师范大学 | Copyright-protection-service-oriented remote sensing image digital watermarking method |
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| US20020168082A1 (en) * | 2001-03-07 | 2002-11-14 | Ravi Razdan | Real-time, distributed, transactional, hybrid watermarking method to provide trace-ability and copyright protection of digital content in peer-to-peer networks |
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| CN101714195A (en) * | 2009-07-22 | 2010-05-26 | 北京创原天地科技有限公司 | Digital certificate-based novel digital copyright protection method and device |
| CN101989324A (en) * | 2009-08-03 | 2011-03-23 | 成都宇飞信息工程有限责任公司 | Information security system based on computer and mobile storage device |
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