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CN104820806A - Information reading protection method and device - Google Patents

Information reading protection method and device Download PDF

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Publication number
CN104820806A
CN104820806A CN201510272715.7A CN201510272715A CN104820806A CN 104820806 A CN104820806 A CN 104820806A CN 201510272715 A CN201510272715 A CN 201510272715A CN 104820806 A CN104820806 A CN 104820806A
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China
Prior art keywords
picture
pictures
unit
segmentation
information
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Pending
Application number
CN201510272715.7A
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Chinese (zh)
Inventor
林荣恒
梁丹丹
赵耀
邹华
杨放春
苏洪磊
赵迪
郑申申
杨煜烽
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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Application filed by Beijing University of Posts and Telecommunications filed Critical Beijing University of Posts and Telecommunications
Priority to CN201510272715.7A priority Critical patent/CN104820806A/en
Publication of CN104820806A publication Critical patent/CN104820806A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6209Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention provides an information reading protection method and an information reading protection device. The technical scheme of the information reading protection method and the information reading protection device includes: using a sending end to convert original information into a middle picture, segmenting the middle picture into a plurality of area pictures and outputting the plurality of the area pictures to a receiving end, and using the receiving end to displaying the plurality of the area pictures in batches in vision persistence time. The information reading protection method and the information reading protection device can effectively prevent a receiver from obtaining copies of received words or pictures through modes of screenshot or photting peripherally, and guarantees information safety.

Description

Reading information protection method and device
Technical Field
The invention relates to the technical field of communication, in particular to a reading information protection method and device.
Background
With the rapid development of the mobile internet, more and more personal information is transmitted through the social networking system, which means that users face greater privacy disclosure risks. People's demand for privacy protection is becoming stronger, so the social method of burning after reading is rapidly increasing in temperature.
In essence, the current burn-after-reading technology restricts information diffusion by shortening the time for a receiver to contact information, however, since a certain reaction time is required for human to obtain information, the time for information retention cannot be too short, which results in that the receiver has a chance to obtain a copy of the information by means of screenshot or photographing before information destruction.
Disclosure of Invention
In view of the above, the present invention provides a reading information protection method and apparatus, which can effectively prevent a receiver from obtaining a copy of a received text or picture through a screenshot or an external photographing, and ensure information security.
In order to achieve the purpose, the invention provides the following technical scheme:
a reading information protection method comprises the following steps:
determining the information type of original information and converting the original information into an intermediate picture;
determining a corresponding picture segmentation strategy according to the information type of the original information, and segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy;
and outputting the plurality of regional pictures obtained by splitting the intermediate picture to a receiving end, so that the receiving end displays the plurality of regional pictures in batches within the visual persistence time.
Another reading information protection method comprises the following steps:
acquiring a plurality of regional pictures which are input by a sending end and are segmented from the same picture;
displaying the plurality of regional pictures in batches within the persistence time of vision;
and deleting the plurality of regional pictures after the picture display time exceeds the preset time.
The utility model provides an information protection device when reading, is applied to the sending end, includes: the device comprises a processing unit, a segmentation unit and an output unit;
the processing unit is used for determining the information type of the original information and converting the original information into an intermediate picture;
the segmentation unit is used for determining a corresponding picture segmentation strategy according to the information type of the original information and segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy;
the output unit is used for outputting the plurality of regional pictures obtained by segmenting the intermediate picture by the segmenting unit to the receiving end, so that the receiving end displays the plurality of regional pictures in batches within the visual persistence time.
Another kind of information protection device when reading, is applied to the receiving end, includes: the device comprises an input unit, a display unit and a destroying unit;
the input unit is used for acquiring a plurality of regional pictures which are input by the sending end and are segmented from the same picture;
the display unit is used for displaying the plurality of area pictures in batches within the persistence time of vision;
and the destroying unit is used for deleting the plurality of regional pictures after the picture display time exceeds the preset time.
According to the technical scheme, the original information is converted into the picture and the picture is segmented, when the picture is displayed, only partial areas of the picture are displayed at the same time, and all the areas of the picture are displayed in batches within the visual persistence time, so that human eyes can see the complete picture, but the picture is shot or captured only partially, therefore, a receiver can be effectively prevented from obtaining a copy of the received characters or pictures through the modes of capturing the picture or taking pictures from an external device, and the information safety is ensured.
Drawings
FIG. 1 is a flow chart of an implementation of a reading information protection method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a reading information protection method according to an embodiment of the present invention;
FIG. 3 is a flow chart of a second-reading information protection method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a reading information protection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an information protection apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings according to embodiments.
Persistence of vision means that when human eyes observe a scene, light signals are transmitted into brain nerves, a short time is needed, and after the action of light is finished, the visual image does not disappear immediately but lasts for a period of time (0.1-0.4 seconds).
The invention provides a reading information protection scheme based on the phenomenon of visual persistence, which converts original information into pictures and divides the pictures, and only displays partial areas of the pictures at the same time and finishes displaying all the areas of the pictures within the visual persistence time when the pictures are displayed. Because only partial areas of the picture are displayed at the same time, the picture obtained by means of screenshot or external shooting is only partial picture content, so that information safety can be guaranteed, and simultaneously, all the areas of the picture are displayed in the persistence time, so that the whole picture can be seen by human eyes.
The technical solution of the present application will be described in detail below.
Referring to fig. 1, fig. 1 is a flowchart of an implementation of a reading information protection method according to an embodiment of the present invention, including the following steps:
step 101, the sending end determines the information type of the original information and converts the original information into an intermediate picture.
In order to ensure that the original information of the sending end is not leaked, in this embodiment, the original information needs to be converted into a picture and the picture needs to be split according to the type of the original information.
The original information of the sending end can be information types such as audio, characters, pictures (including black and white pictures and color pictures) and the like, the information type of the original information can be judged according to the extracted characteristic value by extracting the characteristics of the original information, and in the concrete implementation, the prior art means can be adopted for both the characteristic extraction and the information type judgment of the original information. In addition, no matter audio, text, or picture, picture conversion can be performed, so in this embodiment, any existing implementation method can be adopted to perform picture conversion on the original information to obtain an intermediate picture, and in addition, the picture conversion process can further include screening the original information before picture conversion, removing redundant information or correcting part of unqualified information, removing data with conversion errors after picture conversion, adjusting the picture size, and the like, and details are not repeated.
And 102, the sending end determines a corresponding picture segmentation strategy according to the information type of the original information, and segments the intermediate picture into a plurality of regions based on the determined picture segmentation strategy.
In practical application, the same or different picture segmentation methods may be used for intermediate pictures of different information types, for example, the intermediate picture obtained by text conversion may be uniformly segmented (the picture is segmented into a plurality of blocks with the same size), and the intermediate picture obtained by picture conversion may be non-uniformly (irregularly) segmented (for example, the non-key protection region in the picture is segmented into large blocks, the picture in each region after segmentation is large, the key protection region in the picture is segmented into small blocks, and the picture in each region obtained by segmentation is small, or the upper half part of the picture is segmented into large blocks, and the lower half part of the picture is segmented into small blocks, and the like), and the specific segmentation method may be determined by a worker according to actual needs or preferences.
For this reason, setting one or more picture segmentation methods for each original information type can be realized as a picture segmentation strategy corresponding to the original information type. Thus, after the information type of the original information is determined and the original information is converted into the intermediate picture, the corresponding picture segmentation strategy can be determined according to the information type of the original information, so that a picture segmentation method is selected (randomly selected) from one or more picture segmentation methods contained in the picture segmentation strategy, and the intermediate picture is segmented according to the picture segmentation method to obtain a plurality of regional pictures.
103, the sending end outputs a plurality of regional pictures obtained by splitting the intermediate picture to the receiving end;
and step 104, the receiving end acquires a plurality of regional pictures which are input by the sending end and are segmented from the intermediate picture, and the regional pictures are displayed in batches within the persistence time.
In order to ensure information security, all the area pictures are not allowed to be displayed at the same time, so that all the area pictures can be displayed in different time intervals, and meanwhile, all the area pictures need to be displayed once in the persistence of vision in order to enable human eyes to see the complete picture.
In practical application, the display screen of the receiving end has a certain screen refresh frequency, the picture display frequency cannot be greater than the screen refresh frequency (that is, the picture display time cannot be less than the screen refresh time interval), otherwise, the picture cannot be seen by human eyes, which results in that the number of times of switching the displayed picture in the persistence time is limited.
For convenience of description, the number of times a picture can be switched and displayed within the persistence time is referred to as a maximum display frame number N, which is determined by the persistence time and the screen refresh frequency, specifically, the product of the persistence time T and the screen refresh frequency f.
Since the persistence time T ranges from 0.1 second to 0.4 second, and the typical screen refresh rate is 60 hz, the value of N is between 6 and 24, which is determined by the specific persistence time.
In order to display all the regional pictures segmented from the same picture within the persistence of vision, the regional pictures need to be segmented into a plurality of picture sets, and all the regional pictures in each picture set are displayed in a switching manner within the persistence of vision (only all the regional pictures in one picture set are displayed at the same time), wherein the number of the picture sets is between the intervals [2 and N ], the purpose of information protection cannot be achieved if the number of the picture sets is less than 2, and the picture display frequency is too high if the number of the picture sets is more than N, so that human eyes cannot see the regional pictures.
To this end, the method for displaying the plurality of region pictures in batch within the persistence of vision may specifically be: determining the maximum display frame number N according to the visual persistence time T and the screen refreshing frequency f, selecting an integer value X in the interval [2, N ], dividing the plurality of region pictures into X picture sets, determining the single-frame display duration according to the visual persistence time T and the integer value X, and displaying all region pictures in one picture set in the X picture sets in each single-frame display duration in the continuous X single-frame display durations.
The method for determining the maximum display frame number N according to the persistence time T and the screen refreshing frequency f adopts the following formula: n ═ T × f. The method for determining the single-frame display duration T according to the persistence time T and the integer value X adopts the following formula: t ═ T ÷ X.
It should be noted that, when X is greater than the total number of the region pictures, in some of the consecutive X single-frame display durations, no region picture is displayed in some single-frame display durations, for example, when the total number of the region pictures segmented from the same picture is 2, and X takes a value of 3, when the receiving end displays pictures, in the consecutive 3 single-frame display durations, one single-frame display duration does not display any region picture, and the other two single-frame display durations respectively display two region pictures.
In fact, since the maximum display frame number may be determined in advance, the integer value X may also be set in advance, so that a plurality of region pictures divided from the same picture are directly divided into X picture sets, a single-frame display duration is determined according to the persistence of vision T and the integer value X, and all region pictures in one picture set of the X picture sets are displayed in each single-frame display duration in the continuous X single-frame display durations.
After the receiving end displays a plurality of regional pictures segmented from the intermediate pictures in batch, the user can see the complete information sent by the sending end, and the user cannot obtain the complete pictures in a screenshot mode or a peripheral shooting mode and the like because all the regional pictures cannot be displayed at the same time. Moreover, the receiving end displays the plurality of regional pictures segmented from the intermediate picture in batch, and the received plurality of regional pictures can be destroyed after a preset time, so that the information safety is further ensured.
The above detailed description of the implementation principle of the reading information protection method of the present invention provides a reading information protection method applied to the sending end and a reading information protection method applied to the receiving end based on the above detailed description, and the following detailed description is made with reference to fig. 2 and 3.
Referring to fig. 2, fig. 2 is a flowchart of a reading information protection method according to an embodiment of the present invention, where the method is applied to a sending end, and as shown in fig. 2, the method includes the following steps:
step 201, determining the information type of the original information and converting the original information into an intermediate picture.
Step 202, determining a corresponding picture segmentation strategy according to the information type of the original information, and segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy;
and 203, outputting the plurality of regional pictures obtained by splitting the intermediate picture to a receiving end, so that the receiving end displays the plurality of regional pictures in batches within the visual persistence time.
Wherein the information type of the original information comprises: audio, text, pictures;
setting one or more picture segmentation methods for each original information type in advance as a picture segmentation strategy corresponding to the original information type;
the method for segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy comprises the following steps: and randomly selecting a picture segmentation method from the determined picture segmentation strategies, and carrying out picture segmentation on the intermediate picture according to the picture segmentation method.
Referring to fig. 3, fig. 3 is a flowchart of a second reading information protection method according to an embodiment of the present invention, where the method is applied to a receiving end, and as shown in fig. 3, the method includes the following steps:
step 301, obtaining a plurality of regional pictures which are input by a sending end and are segmented from the same picture.
And 302, displaying the plurality of area pictures in batches in the persistence time.
And step 303, deleting the plurality of area pictures after the picture display time exceeds the preset time.
In the method shown in figure 3 of the drawings,
displaying the plurality of regional pictures in batches within the persistence time of vision, including: determining the maximum display frame number N according to the visual persistence time T and the screen refreshing frequency f, selecting an integer value X in the interval [2, N ], dividing the plurality of region pictures into X picture sets, determining the single-frame display duration according to the visual persistence time T and the integer value X, and displaying all region pictures in one picture set in the X picture sets in each single-frame display duration in the continuous X single-frame display durations.
Wherein,
the method for determining the maximum display frame number N according to the persistence time T and the screen refreshing frequency f adopts the following formula: n ═ T × f;
the method for determining the single-frame display duration T according to the persistence time T and the integer value X adopts the following formula: t ═ T ÷ X.
The invention also provides a reading information protection device applied to the sending end and a reading information protection device applied to the receiving end, which are described in detail below with reference to fig. 4 and 5.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a reading information protection apparatus according to an embodiment of the present invention, where the apparatus is applied to a sending end, and includes: a processing unit 401, a slicing unit 402, an output unit 403; wherein,
a processing unit 401, configured to determine an information type of original information and convert the original information into an intermediate picture;
a segmentation unit 402, configured to determine a corresponding picture segmentation policy according to an information type of original information, and segment the intermediate picture into multiple regions based on the determined picture segmentation policy;
an output unit 403, configured to output the multiple regional pictures obtained by splitting the intermediate picture by the splitting unit 402 to a receiving end, so that the receiving end displays the multiple regional pictures in batch within the persistence time.
In the arrangement shown in figure 4 of the drawings,
the information types of the original information comprise: audio, text, pictures;
the apparatus further includes a configuration unit 404, configured to set one or more picture segmentation methods in advance for each original information type, as a picture segmentation policy corresponding to the original information type;
the splitting unit 402, when splitting the intermediate picture into a plurality of regions based on the determined picture splitting policy, is configured to: and randomly selecting a picture segmentation method from the determined picture segmentation strategies, and carrying out picture segmentation on the intermediate picture according to the picture segmentation method.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an information protection apparatus for reading two documents according to an embodiment of the present invention, where the apparatus is applied to a receiving end, and includes: an input unit 501, a display unit 502 and a destruction unit 503; wherein,
an input unit 501, configured to obtain multiple regional pictures, which are split from the same picture and input by a sending end;
a display unit 502, configured to display the multiple region pictures in batch within the persistence time;
a destroying unit 503, configured to delete the plurality of area pictures after the picture display time exceeds a preset time.
In the device shown in figure 5 of the drawings,
the display unit 502 displays the plurality of region pictures in batch within the persistence time, including: determining the maximum display frame number N according to the visual persistence time T and the screen refreshing frequency f, selecting an integer value X in the interval [2, N ], dividing the plurality of region pictures into X picture sets, determining the single-frame display duration according to the visual persistence time T and the integer value X, and displaying all region pictures in one picture set in the X picture sets in each single-frame display duration in the continuous X single-frame display durations.
In the device shown in figure 5 of the drawings,
when the display unit 502 determines the maximum display frame number N according to the persistence time T and the screen refresh frequency f, the following formula is adopted: n ═ T × f;
when the display unit 502 determines the single-frame display duration T according to the persistence time T and the integer value X, the following formula is adopted: t ═ T ÷ X.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A reading information protection method is characterized by comprising the following steps:
determining the information type of original information and converting the original information into an intermediate picture;
determining a corresponding picture segmentation strategy according to the information type of the original information, and segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy;
and outputting the plurality of regional pictures obtained by splitting the intermediate picture to a receiving end, so that the receiving end displays the plurality of regional pictures in batches within the visual persistence time.
2. The method of claim 1,
the information types of the original information comprise: audio, text, pictures;
setting one or more picture segmentation methods for each original information type in advance as a picture segmentation strategy corresponding to the original information type;
the method for segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy comprises the following steps: and randomly selecting a picture segmentation method from the determined picture segmentation strategies, and carrying out picture segmentation on the intermediate picture according to the picture segmentation method.
3. A reading information protection method is characterized by comprising the following steps:
acquiring a plurality of regional pictures which are input by a sending end and are segmented from the same picture;
displaying the plurality of regional pictures in batches within the persistence time of vision;
and deleting the plurality of regional pictures after the picture display time exceeds the preset time.
4. The method of claim 3,
displaying the plurality of regional pictures in batches within the persistence time of vision, including: determining the maximum display frame number N according to the visual persistence time T and the screen refreshing frequency f, selecting an integer value X in the interval [2, N ], dividing the plurality of region pictures into X picture sets, determining the single-frame display duration according to the visual persistence time T and the integer value X, and displaying all region pictures in one picture set in the X picture sets in each single-frame display duration in the continuous X single-frame display durations.
5. The method of claim 4,
the method for determining the maximum display frame number N according to the persistence time T and the screen refreshing frequency f adopts the following formula: n ═ T × f;
the method for determining the single-frame display duration T according to the persistence time T and the integer value X adopts the following formula: t ═ T ÷ X.
6. The utility model provides an information protection device when reading, its characterized in that, the device is applied to the sending end, includes: the device comprises a processing unit, a segmentation unit and an output unit;
the processing unit is used for determining the information type of the original information and converting the original information into an intermediate picture;
the segmentation unit is used for determining a corresponding picture segmentation strategy according to the information type of the original information and segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy;
the output unit is used for outputting the plurality of regional pictures obtained by segmenting the intermediate picture by the segmenting unit to the receiving end, so that the receiving end displays the plurality of regional pictures in batches within the visual persistence time.
7. The apparatus of claim 6,
the information types of the original information comprise: audio, text, pictures;
the device also comprises a configuration unit, a processing unit and a display unit, wherein the configuration unit is used for setting one or more picture segmentation methods for each original information type in advance as a picture segmentation strategy corresponding to the original information type;
the segmentation unit, when segmenting the intermediate picture into a plurality of regions based on the determined picture segmentation strategy, is configured to: and randomly selecting a picture segmentation method from the determined picture segmentation strategies, and carrying out picture segmentation on the intermediate picture according to the picture segmentation method.
8. The utility model provides a reading information protection device which characterized in that, the device is applied to the receiving end, includes: the device comprises an input unit, a display unit and a destroying unit;
the input unit is used for acquiring a plurality of regional pictures which are input by the sending end and are segmented from the same picture;
the display unit is used for displaying the plurality of area pictures in batches within the persistence time of vision;
and the destroying unit is used for deleting the plurality of regional pictures after the picture display time exceeds the preset time.
9. The apparatus of claim 8,
the display unit displays the plurality of region pictures in batch in the persistence time, and the display unit comprises: determining the maximum display frame number N according to the visual persistence time T and the screen refreshing frequency f, selecting an integer value X in the interval [2, N ], dividing the plurality of region pictures into X picture sets, determining the single-frame display duration according to the visual persistence time T and the integer value X, and displaying all region pictures in one picture set in the X picture sets in each single-frame display duration in the continuous X single-frame display durations.
10. The apparatus of claim 9,
when the display unit determines the maximum display frame number N according to the persistence time T and the screen refreshing frequency f, the following formula is adopted: n ═ T × f;
when the display unit determines the single-frame display duration T according to the persistence time T and the integer value X, the following formula is adopted: t ═ T ÷ X.
CN201510272715.7A 2015-05-26 2015-05-26 Information reading protection method and device Pending CN104820806A (en)

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CN105528555A (en) * 2015-12-01 2016-04-27 杭州安司源科技有限公司 Information display protection method using covering graph and information transmission method
CN106503598A (en) * 2016-11-07 2017-03-15 安徽味唯网络科技有限公司 A kind of method that security information shows
CN107563232A (en) * 2017-09-30 2018-01-09 北京奇虎科技有限公司 The display methods and device of a kind of user profile
CN107801055A (en) * 2017-11-01 2018-03-13 北京邦邦共赢网络科技有限公司 A kind of method and apparatus that image is presented
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CN102053809A (en) * 2009-10-29 2011-05-11 中华电信股份有限公司 Method for protecting display data and program product for protecting display data program in memory
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105528555A (en) * 2015-12-01 2016-04-27 杭州安司源科技有限公司 Information display protection method using covering graph and information transmission method
CN106503598A (en) * 2016-11-07 2017-03-15 安徽味唯网络科技有限公司 A kind of method that security information shows
CN107563232A (en) * 2017-09-30 2018-01-09 北京奇虎科技有限公司 The display methods and device of a kind of user profile
CN107801055A (en) * 2017-11-01 2018-03-13 北京邦邦共赢网络科技有限公司 A kind of method and apparatus that image is presented
WO2021012502A1 (en) * 2019-07-22 2021-01-28 平安科技(深圳)有限公司 Screenshot information control method, device, computer apparatus, and storage medium

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Application publication date: 20150805