CN107038355A - Cloud platform dynamic watermark generates system and its control method - Google Patents
Cloud platform dynamic watermark generates system and its control method Download PDFInfo
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- CN107038355A CN107038355A CN201611177872.0A CN201611177872A CN107038355A CN 107038355 A CN107038355 A CN 107038355A CN 201611177872 A CN201611177872 A CN 201611177872A CN 107038355 A CN107038355 A CN 107038355A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 38
- 230000008859 change Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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- 238000003384 imaging method Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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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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- 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
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
- G06F9/45508—Runtime interpretation or emulation, e g. emulator loops, bytecode interpretation
Abstract
The present invention relates to a kind of cloud platform dynamic watermark generation system and its control method, the system includes virtual machine link block, and the watermark generation module being bi-directionally connected with described virtual machine link block, the data module being unidirectionally connected with described virtual machine link block, and described watermark generation module is also unidirectionally connected with described data module, the watermark generation module generates switch and static watermark configuration information selection generation dynamic watermark according to the essential information and dynamic watermark of the virtual machine stored in described data module, and be inserted into by described virtual machine link block in data flow to be sent, the virtual machine link block can also notify watermark generation module to regenerate dynamic watermark immediately according to the specifying information of client, to adapt to the client of virtual machine link block connection.Using this kind of system and method, it can be sent to the virtual machine according to different virtual machine configuration information dynamic generation watermarks and insert dynamic watermark into the data flow of client, copyright protection can be achieved.
Description
Technical field
The present invention relates to copyright protection field, more particularly in cloud platform, the copyright protection of the addition watermark of data transfer is led
Domain, specifically refers to a kind of cloud platform dynamic watermark generation system and its control method.
Background technology
Cloud platform is to turn to cloud computing (cloud computing), is the great change that industry will face.It is various
The appearance of cloud platform (cloud platforms) is one of most important link of the transformation.As its name suggests, this platform allows out
Originator or the program finished writing is placed on " cloud " inner operation, or " cloud " inner service provided is provided, or the two is all.As for
The title of this platform, now we can hear more than one call, such as on demand platform (on-demand platform),
Platform is service (platform as a service, PaaS) etc..But no matter call it what, this new support application
Mode have huge potentiality.
What it is with great potential is the fearful data interaction amount of cloud platform, and almost everyone obtains from cloud platform daily
Resource, the thing followed is exactly the Copyright Protection of data.
Copyright protection also is carried out to data commonly using watermark in the prior art, but watermark content is single, it is necessary to manually set
Putting can just change, and cause many inconvenience, and due to the increase of data volume, protect that its copyright has become by a static watermark ten
Divide difficulty.
The content of the invention
In order to overcome above-described the problems of the prior art, the present invention, which provides a kind of watermark, to be occurred with virtual machine
The cloud platform dynamic watermark generation system and its control method of change.
The cloud platform dynamic watermark generates system and its control method is specific as follows：
The cloud platform dynamic watermark generates system, and it is mainly characterized by, and described system includes virtual machine link block, with
And be bi-directionally connected with described virtual machine link block watermark generation module, be unidirectionally connected with described virtual machine link block
Data module, and described watermark generation module is also unidirectionally connected with described data module, wherein,
Described virtual machine link block and the client of user are connected, number that user is asked, insertion dynamic watermark
Described client is sent to according to stream；
Described watermark generation module is to generate dynamic watermark；
Described data module is stored with the configuration information of virtual machine, to provide virtual to described watermark generation module
The configuration information of machine.
It is preferred that described data module obtains the data flow of described virtual machine by a Hypervisor modules.
It is preferred that described configuration information includes user name, virtual machine name, time, IP address, dynamic watermark selecting switch
Information and static watermark configuration information, wherein,
Described dynamic watermark selecting switch information needs to generate dynamic watermark to choose whether；
Form of the described static watermark configuration information to configure dynamic watermark.
More preferably, described watermark generation module is connected with described data module, to from described data module
The middle configuration information for obtaining virtual machine is to generate described dynamic watermark.
It is particularly preferred that described watermark generation module also obtains the virtual machine to configure Dynamic Water from described data module
The static watermark configuration information of grid printing formula, described static watermark configuration information can be by being connected with described data module
One UI modules are configured.
It is preferred that the connection of described virtual machine link block and the client of user is two-way.
The method that the generation control of cloud platform dynamic watermark is realized based on above-mentioned system, it is mainly characterized by, and described matches somebody with somebody
Confidence breath includes user name, virtual machine name, time, IP address, dynamic watermark selecting switch information and static watermark configuration letter
Breath, described method comprises the following steps：
(1) user initiates to ask by described client to described system；
(2) system described in receives request, and judges whether virtual machine needs to generate dynamic watermark；If it is required, then after
Continuous step (3)；Otherwise step (4) is continued；
(3) the watermark generation module generation dynamic watermark described in, and insert pending by described virtual machine link block
The data flow sent；
(4) data flow received is sent to described client by the virtual machine link block described in.
It is preferred that described data module is also connected with a Hypervisor modules, the system in described step (2) connects
Request is received, is specially：
Described virtual machine link block receives the request, and by described Hypervisor modules from described void
Plan machine obtains data flow to be sent.
It is preferred that the system in described (2) judges whether virtual machine needs to generate dynamic watermark, it is specially：
Described virtual machine link block reads the configuration information in described data module, obtains institute in the configuration information
The dynamic watermark selecting switch information stated, and judge whether the virtual machine needs generation according to the dynamic watermark selecting switch information
Dynamic watermark.
It is preferred that there is a step before described step (3)：
(3.0) virtual machine link block described in the described dynamic watermark of watermark generation module one generation signal, and after
Continue described step (3).
It is preferred that described step (3) are comprised the following steps that：
(3.1) watermark generation module described in obtains the configuration information in the data module, and by the configuration information
Static watermark configuration information is sent to described watermark generation module；
(3.2) watermark generation module described in generates dynamic watermark according to described configuration information, and based on described quiet
State watermark configuration information is configured to the form of described dynamic watermark；
(3.3) dynamic watermark for having configured form is sent to described virtual machine and connects mould by the watermark generation module described in
Block；
(3.4) dynamic watermark that the virtual machine link block described in is received is inserted in data flow to be sent.
It is preferred that also including a step before described step (4)：
(4.0) the virtual machine link block described in obtains the specifying information of described client, and judges current to be sent
Data flow in the dynamic watermark that inserts whether adapt to described client, or whether described static watermark configuration information is sent out
Changing, if the dynamic watermark adapts to described client, and described static watermark configuration information keeps constant, then after
Continuous step (4)；Otherwise described virtual machine link block reinserts a dynamic watermark for adapting to described client.
It is preferred that the virtual machine link block in described step (4.0), which reinserts one, adapts to described client
Dynamic watermark be specially：
Virtual machine link block described in (4.0.1) rejects the dynamic watermark inserted in the data flow to be sent, concurrently
Sending one makes dynamic watermark adapt to the static watermark configuration information of described client to described data module, or reacquisition
Described static watermark configuration information, and transmission one is reconfigured at signal to described watermark generation module；
Watermark generation module described in (4.0.2) is reconfigured at signal according to this and reacquires renewal in described data module
Configuration information, and generate the dynamic watermark for adapting to described client；
Watermark generation module described in (4.0.3) this is adapted to described client dynamic watermark be sent to it is described
Virtual machine link block, and continue described step (4.0).
This kind of cloud platform dynamic watermark generation system and its control method are employed, because it is virtual by what is prestored
The configuration information of machine generates dynamic watermark, and the virtual machine of the data source of user's request is different, the watermark of generation is also different, and
The essential information of virtual machine is included in the configuration information, the data that the dynamic watermark accordingly generated can be asked to the user are with version
Power protection, prevents piracy, reaches the purpose maintained secrecy to data stream.If user reveals cloud by screenshotss or the mode such as take pictures
The addressable file content of platform, and the form of dynamic watermark can be readjusted according to the situation of client to adapt to client,
It is very convenient quick, with powerful practical value and large market scope.
Brief description of the drawings
Fig. 1 generates the annexation schematic diagram of each module of system for the cloud platform dynamic watermark of the present invention.
Embodiment
In order to better illustrate the technology contents of the present invention, further illustrated especially exemplified by specific examples below.
The cloud platform dynamic watermark generates system, and it is mainly characterized by, and described system includes virtual machine link block, with
And be bi-directionally connected with described virtual machine link block watermark generation module, be unidirectionally connected with described virtual machine link block
Data module, and described watermark generation module is also unidirectionally connected with described data module, wherein,
Described virtual machine link block and the client of user are connected, number that user is asked, insertion dynamic watermark
Described client is sent to according to stream；
Described watermark generation module is to generate dynamic watermark；
Described data module is stored with the configuration information of virtual machine, to provide virtual to described watermark generation module
The configuration information of machine.
Described data module obtains the data flow of described virtual machine by a Hypervisor modules.
Described configuration information include user name, virtual machine name, the time, IP address, dynamic watermark selecting switch information with
And static watermark configuration information, wherein,
Described dynamic watermark selecting switch information needs to generate dynamic watermark to choose whether；
Form of the described static watermark configuration information to configure dynamic watermark.
Described watermark generation module is connected with described data module, to obtain empty from described data module
The configuration information of plan machine is to generate described dynamic watermark.
Described watermark generation module also obtains the virtual machine to configure dynamic watermark form from described data module
Static watermark configuration information, described static watermark configuration information can be by the UI moulds that are connected with described data module
Block is configured.
The connection of described virtual machine link block and the client of user is two-way.
The method that the generation control of cloud platform dynamic watermark is realized based on above-mentioned system, it is mainly characterized by, and described matches somebody with somebody
Confidence breath includes user name, virtual machine name, time, IP address, dynamic watermark selecting switch information and static watermark configuration letter
Breath, described method comprises the following steps：
(1) user initiates to ask by described client to described system；
(2) system described in receives request, and judges whether virtual machine needs to generate dynamic watermark；If it is required, then after
Continuous step (3)；Otherwise step (4) is continued, wherein, system receives request, is specially：
Described virtual machine link block receives the request, and by described Hypervisor modules from described void
Plan machine obtains data flow to be sent；
System judges whether virtual machine needs to generate dynamic watermark, is specially：
Described virtual machine link block reads the configuration information in described data module, obtains institute in the configuration information
The dynamic watermark selecting switch information stated, and judge whether the virtual machine needs generation according to the dynamic watermark selecting switch information
Dynamic watermark；
(3) the watermark generation module generation dynamic watermark described in, and insert pending by described virtual machine link block
There is a step before the data flow sent, described step (3)：
(3.0) virtual machine link block described in the described dynamic watermark of watermark generation module one generation signal, and after
Continue described step (3).
The step is comprised the following steps that：
(3.1) watermark generation module described in obtains the configuration information in the data module, and by the configuration information
Static watermark configuration information is sent to described watermark generation module；
(3.2) watermark generation module described in generates dynamic watermark according to described configuration information, and based on described quiet
State watermark configuration information is configured to the form of described dynamic watermark；
(3.3) dynamic watermark for having configured form is sent to described virtual machine and connects mould by the watermark generation module described in
Block；
(3.4) dynamic watermark that the virtual machine link block described in is received is inserted in data flow to be sent；
(4.0) the virtual machine link block described in obtains the specifying information of described client, and judges current to be sent
Data flow in the dynamic watermark that inserts whether adapt to described client, or whether described static watermark configuration information is sent out
Changing, if the dynamic watermark adapts to described client, and described static watermark configuration information keeps constant, then after
Continuous step (4)；Otherwise described virtual machine link block reinserts a dynamic watermark for adapting to described client, its
In, virtual machine link block reinserts a dynamic watermark for adapting to described client and is specially：
Virtual machine link block described in (4.0.1) rejects the dynamic watermark inserted in the data flow to be sent, concurrently
Sending one makes dynamic watermark adapt to the static watermark configuration information of described client to described data module, or reacquisition
Described static watermark configuration information, and transmission one is reconfigured at signal to described watermark generation module；
Watermark generation module described in (4.0.2) is reconfigured at signal according to this and reacquires renewal in described data module
Configuration information, and generate the dynamic watermark for adapting to described client；
Watermark generation module described in (4.0.3) this is adapted to described client dynamic watermark be sent to it is described
Virtual machine link block, and continue described step (4.0)；
(4) data flow received is sent to described client by the virtual machine link block described in.
In a kind of specific embodiment, dynamic watermark generation system realizes that the specific method of its function is as follows：
(1) subscription client initiates connection request to cloud platform；
(2) the virtual machine link block described in will all receive the request；
(3) the virtual machine link block described in reads data module information, is confirmed whether to need to generate watermark, if needed
Will, then the 4th step is carried out, if it is not needed, carrying out the 8th step；
(4) the virtual machine link block described in asks watermark information to watermark generation module；
(5) data module request of the watermark generation module into cloud platform, obtains pre-configure information；
(6) watermark generation module generates watermark according to dynamic and static information；
(7) output of watermark generation module will be sent to virtual machine link block；
(8) virtual machine link block is inserted the watermark into data flow；
(9) by the change according to its client case connected, (such as virtual machine screen size occurs virtual machine link block
Change), the watermark that dynamic asks to update to watermark generation module is inserted into data flow.
(10) client receives data flow, shows data flow and the watermark information that may be included.
In a kind of specific embodiment, dynamic watermark insertion data flow is controlled by virtual machine link block, virtual machine connection
The output of module includes view data and control data.Dynamic watermark will be inserted into view data, then be sent.
Specific dynamic watermark can be overlapped inserted with various ways before client is sent to every frame data,
Dynamic watermark data can be sent directly to client, be overlapped by client.Imaging importing can use existing figure
As tool storage room.
In a kind of specific embodiment, the dynamic watermark produced by watermark generation module can be view data, Ke Yishi
Image+metadata (size of image, RGB, transparency, word etc.), can also only include metadata.
In a kind of specific embodiment, virtual machine link block communicates with Hypervisor modules, obtains the tool of virtual machine
Volume data stream.Here, Hypervisor is referred to as virtual machine management program, is responsible for the distribution of hardware resource.Here virtual machine connects
Communication between connection module and Hypervisor typically calls completion by module interface.
After client is initiated to ask, the addressable service of cloud platform outer net will receive this request, and please by this
Ask and be transmitted to virtual machine link block, virtual machine link block communicates with Hypervisor modules, obtain the data flow of virtual machine.
Virtual machine link block can communicate with data module simultaneously, obtain the configuration information of virtual machine, such as whether display watermark etc..Here
Data module can be database service, and each virtual machine all will newly insert a record when creating in database, comprising
Such as virtual machine ID, virtual machine name, the information such as the owner.It can subsequently continue to add configuration information, such as whether display watermark etc..
Watermark generation module obtains static watermark configuration information from data module.Implement, can be by virtual machine
Link block directly reads static configuration information from data module, then by interface interchange, passes information to watermark generation
Module.Can also when watermark generation module directly read data module.
Read-write to data module is realized by a upper strata UI modules, such as Web UI on Web UI, can configure static state
Watermark configuration information (for example whether comprising user name, virtual machine name, the time, IP etc.) and image metadata, such as text color, text
Word font size etc..
The data flow of virtual machine link block is two-way, while the data flow that client reception system is sent, and will also
Feedback control information is sent to cloud platform, such as mouse location information, screen size.Virtual machine link block is if necessary to full frame aobvious
Show dynamic watermark, it is necessary to which dynamic watermark is adjusted according to client screen size.But dynamic adjustment watermark is not limited in screen
The change of size, it is also possible to be due to change to the static watermark configuration information that watermark is configured, the word of such as watermark
Content is adjusted.
This kind of cloud platform dynamic watermark generation system and its control method are employed, because it is virtual by what is prestored
The configuration information of machine generates dynamic watermark, and the virtual machine of the data source of user's request is different, the watermark of generation is also different, and
The essential information of virtual machine is included in the configuration information, the data that the dynamic watermark accordingly generated can be asked to the user are with version
Power protection, prevents piracy, reaches the purpose maintained secrecy to data stream.If user reveals cloud by screenshotss or the mode such as take pictures
The addressable file content of platform, and the form of dynamic watermark can be readjusted according to the situation of client to adapt to client,
It is very convenient quick, with powerful practical value and large market scope.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
And it is nonrestrictive.
Claims (13)
1. a kind of cloud platform dynamic watermark generates system, it is characterised in that described system includes virtual machine link block, and
The watermark generation module that is bi-directionally connected with described virtual machine link block, unidirectionally it is connected with described virtual machine link block
Data module, and described watermark generation module is also unidirectionally connected with described data module, wherein,
Described virtual machine link block and the client of user are connected, data flow that user is asked, insertion dynamic watermark
It is sent to described client；
Described watermark generation module is to generate dynamic watermark；
Described data module is stored with the configuration information of virtual machine, to provide virtual machine to described watermark generation module
Configuration information.
2. cloud platform dynamic watermark according to claim 1 generates system, it is characterised in that described data module passes through
One Hypervisor modules obtain the data flow of described virtual machine.
3. cloud platform dynamic watermark according to claim 1 generates system, it is characterised in that described configuration information includes
User name, virtual machine name, time, IP address, dynamic watermark selecting switch information and static watermark configuration information, wherein,
Described dynamic watermark selecting switch information needs to generate dynamic watermark to choose whether；
Form of the described static watermark configuration information to configure dynamic watermark.
4. the cloud platform dynamic watermark generation system according to claim 3, it is characterised in that described watermark generation mould
Block is connected with described data module, described to generate to obtain the configuration information of virtual machine from described data module
Dynamic watermark.
5. cloud platform dynamic watermark according to claim 4 generates system, it is characterised in that described watermark generation module
Also static watermark configuration information of the virtual machine to configure dynamic watermark content and form, institute are obtained from described data module
The static watermark configuration information stated can be configured by the UI modules being connected with described data module.
6. cloud platform dynamic watermark according to claim 1 generates system, it is characterised in that described virtual machine connection mould
The connection of the client of block and user is two-way.
7. a kind of method that system based on any one of claim 1 to 6 realizes the generation control of cloud platform dynamic watermark,
Characterized in that, described configuration information includes dynamic watermark selecting switch information and static watermark configuration information, it is described
Method comprises the following steps：
(1) user initiates to ask by described client to described system；
(2) system described in receives request, and judges whether virtual machine needs to generate dynamic watermark；If it is required, then continuing to walk
Suddenly (3)；Otherwise step (4) is continued；
(3) the watermark generation module generation dynamic watermark described in, and insert to be sent by described virtual machine link block
Data flow；
(4) data flow received is sent to described client by the virtual machine link block described in.
8. the method according to claim 7 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described number
Also it is connected according to module with a Hypervisor modules, the system in described step (2) receives request, is specially：
Described virtual machine link block receives the request, and by described Hypervisor modules from described virtual machine
Obtain data flow to be sent.
9. the method according to claim 7 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described
(2) system in judges whether virtual machine needs to generate dynamic watermark, is specially：
Described virtual machine link block reads the configuration information in described data module, obtains described in the configuration information
Dynamic watermark selecting switch information, and judge whether the virtual machine needs generation dynamic according to the dynamic watermark selecting switch information
Watermark.
10. the method according to claim 7 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described
It is further comprising the steps of before step (3)：
(3.0) the virtual machine link block described in continues institute to the described dynamic watermark of watermark generation module one generation signal
The step of stating (3).
11. the method according to claim 7 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described
Step (3) comprises the following steps：
(3.1) watermark generation module described in obtains the configuration information in the data module, and by the static state in the configuration information
Watermark configuration information is sent to described watermark generation module；
(3.2) watermark generation module described in generates dynamic watermark according to described configuration information, and based on described Static Water
Print configuration information is configured to the form of described dynamic watermark；
(3.3) dynamic watermark for having configured form is sent to described virtual machine link block by the watermark generation module described in；
(3.4) dynamic watermark that the virtual machine link block described in is received is inserted in data flow to be sent.
12. the method according to claim 7 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described
It is further comprising the steps of before step (4)：
(4.0) the virtual machine link block described in obtains the specifying information of described client, and judges current number to be sent
Described client whether is adapted to according to the dynamic watermark inserted in stream, or whether described static watermark configuration information becomes
Change, if the dynamic watermark adapts to described client, and described static watermark configuration information keeps constant, then continues to walk
Suddenly (4)；Otherwise described virtual machine link block reinserts a dynamic watermark for adapting to described client.
13. the method according to claim 12 for realizing the generation control of cloud platform dynamic watermark, it is characterised in that described
Virtual machine link block in step (4.0) reinserts a dynamic watermark for adapting to described client, specifically include with
Lower step：
Virtual machine link block described in (4.0.1) rejects the dynamic watermark inserted in the data flow to be sent, and sends one
Dynamic watermark is adapted to the static watermark configuration information of described client to described data module, or reacquire described
Static watermark configuration information, and send and one be reconfigured at signal to described watermark generation module；
What is updated in data module of the watermark generation module according to this is reconfigured at signal reacquisition described in (4.0.2) matches somebody with somebody
Confidence ceases, and generates the dynamic watermark for adapting to described client；
Watermark generation module described in (4.0.3) this is adapted to described client dynamic watermark be sent to it is described virtual
Machine link block, and continue described step (4.0).
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| CN109190338A (en) * | 2018-08-22 | 2019-01-11 | 广东微云科技股份有限公司 | A kind of virtualization desktop screen watermark generation method and system |
| CN109840131A (en) * | 2017-11-27 | 2019-06-04 | 中兴通讯股份有限公司 | A kind of watermark adding method, device and computer readable storage medium |
| WO2020119232A1 (en) * | 2018-12-12 | 2020-06-18 | 中兴通讯股份有限公司 | Virtual desktop-based watermark addition method and device |
| CN112003873A (en) * | 2020-08-31 | 2020-11-27 | 成都安恒信息技术有限公司 | HTTP (hyper text transport protocol) traffic defense method and system for resisting DDoS (distributed denial of service) attack |
| CN112464177A (en) * | 2019-09-06 | 2021-03-09 | 成都鼎桥通信技术有限公司 | Watermark full-coverage method and device |
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| WO2020119232A1 (en) * | 2018-12-12 | 2020-06-18 | 中兴通讯股份有限公司 | Virtual desktop-based watermark addition method and device |
| CN111310135A (en) * | 2018-12-12 | 2020-06-19 | 中兴通讯股份有限公司 | Watermark adding method and device based on virtual desktop |
| CN112464177A (en) * | 2019-09-06 | 2021-03-09 | 成都鼎桥通信技术有限公司 | Watermark full-coverage method and device |
| CN112464177B (en) * | 2019-09-06 | 2023-10-17 | 成都鼎桥通信技术有限公司 | Watermark full-coverage method and device |
| CN112003873A (en) * | 2020-08-31 | 2020-11-27 | 成都安恒信息技术有限公司 | HTTP (hyper text transport protocol) traffic defense method and system for resisting DDoS (distributed denial of service) attack |
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