CN110942322A - Anti-counterfeiting method, system, electronic equipment and medium for coupon getting interface screenshot - Google Patents
Anti-counterfeiting method, system, electronic equipment and medium for coupon getting interface screenshot Download PDFInfo
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0207—Discounts or incentives, e.g. coupons or rebates
- G06Q30/0225—Avoiding frauds
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
Abstract
The invention discloses an anti-counterfeiting method, an anti-counterfeiting system, electronic equipment and a medium for a coupon getting interface screenshot, wherein the anti-counterfeiting method comprises the following steps: acquiring a screenshot of a receiving interface of the coupon, wherein the receiving interface is used for a user logging in the receiving interface to receive the coupon; acquiring information of a user, and representing the information of the user in a character string form; and writing the information of the user into the digital image file of the screenshot to form the anti-counterfeiting picture. The invention hides the anti-counterfeiting information in the digital coding file of the screenshot, is not easy to be found and copied and forged, and greatly improves the anti-counterfeiting effect of the screenshot of the receiving interface of the coupon.
Description
Technical Field
The invention belongs to the technical field of anti-counterfeiting of screenshots of a coupon picking interface, and particularly relates to an anti-counterfeiting method, an anti-counterfeiting system, electronic equipment and a medium for the screenshots of the coupon picking interface.
Background
With the rapid development of electronic commerce in recent years, in order to attract consumers in all ages, various types of sales promotion means are developed, wherein the sales promotion manner for issuing coupons is a crucial ring in electronic commerce marketing. After the user clicks the operation of getting the coupon on the coupon getting interface on the E-commerce website, if the getting is successful, the getting interface pops up prompt information to display 'the coupon getting is successful'. But sometimes the user successfully picks up the coupon, but the coupon cannot be queried in the account. At this time, the user can call the customer service telephone of the e-commerce website to consult. At this point, the customer service personnel may ask the user to provide a screenshot of the coupon pickup interface to prove that the pickup was successful. For users who can provide a screenshot showing a coupon pickup interface of "pickup successful", the e-commerce website will give a reissue coupon. However, fraud, resale, and even forgery of the screen shot of the coupon pickup interface sometimes occur. The coupon family is deceived into the coupon family, and the customer service is complained about the fact that the coupon is received but the coupon is not paid by virtue of the screen shot of the stolen or forged coupon, so that the coupon is deceived. These conditions detract from the benefits of the e-commerce.
In order to prevent the screen capture of the coupon getting interface from being faked, in the prior art, a method of adding a watermark to the screen capture is often adopted, that is, a user performs screen capture operation on the coupon getting interface, and the e-commerce website adds the watermark to the screen capture to represent that the screen capture is a real screen capture. But such a watermark is visible. With the development of picture synthesis processing technology, the watermark is easy to imitate, the making of the screenshot with the watermark is easier and easier, and the anti-counterfeiting effect is poorer and poorer.
Disclosure of Invention
The invention provides an anti-counterfeiting method, an anti-counterfeiting system, electronic equipment and a medium for a coupon getting interface screenshot, aiming at overcoming the defects that in the prior art, an anti-counterfeiting watermark of the coupon getting interface screenshot is easy to imitate and the anti-counterfeiting effect is poor.
The invention solves the technical problems through the following technical scheme:
an anti-counterfeiting method for a coupon getting interface screenshot comprises the following steps:
acquiring a screenshot of a receiving interface of the coupon, wherein the receiving interface is used for a user logging in the receiving interface to receive the coupon;
acquiring information of a user, and representing the information of the user in a character string form;
and writing the information of the user into the digital image file of the screenshot to form the anti-counterfeiting picture.
Preferably, the step of writing the user's information into the digital image file of the screenshot comprises:
and converting the information of the user into an anti-fake binary sequence, and writing the anti-fake binary sequence into the digital image file of the screenshot.
Preferably, assuming that the anti-fake binary sequence comprises a binary number with the number of bits N1 and the number of pixels of the screenshot is N2, the step of writing the anti-fake binary sequence into the digital image file of the screenshot comprises:
judging the sizes of N1 and N2; if N1 is not larger than N2, selecting N1 pixels of the screenshot according to a preset algorithm, and correspondingly replacing LSBs (Least Significant bits) of each pixel in the selected N1 pixels with one-Bit binary numbers of the anti-fake binary sequence; otherwise, adding a plurality of rows of pixels below the last row of the screenshot to form an extended picture, wherein the number of the pixels of the extended picture is not less than N1, selecting N1 pixels of the extended picture according to a preset algorithm, and correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-fake binary sequence.
Preferably, the selected N1 pixels are N1 consecutive pixels;
the step of replacing the LSB of each of the N1 selected pixels with a one-bit binary number of the anti-fake binary sequence includes:
and correspondingly replacing the LSB of each pixel in the selected N1 pixels by a one-bit binary number of the anti-fake binary sequence according to the arrangement sequence of the binary numbers in the anti-fake binary sequence.
Preferably, the step of converting the user's information into an anti-fake binary sequence comprises:
converting each character of the user information into a corresponding binary sequence, arranging the binary sequence corresponding to each character according to the arrangement sequence of the characters of the user information to form a first binary sequence, and taking the first binary sequence as an anti-fake binary sequence.
Preferably, the step of converting the user's information into an anti-fake binary sequence comprises:
converting each character of the user information into a corresponding binary sequence, arranging the binary sequence corresponding to each character according to the arrangement sequence of the characters of the user information to form a first binary sequence, coding the first binary sequence according to a preset coding algorithm to form a coded binary sequence, and taking the coded binary sequence as an anti-fake binary sequence.
Preferably, the step of obtaining the screenshot of the coupon picking interface comprises the following steps:
a screen capture button is arranged on the getting interface, and generates a screen capture instruction after receiving a click operation, wherein the screen capture instruction is used for triggering the screen capture operation to obtain a screen capture of the getting interface of the coupon;
or logging in the getting interface on the mobile terminal, wherein the mobile terminal is used for detecting a preset induction gesture and generating a screen capture instruction after detecting the preset induction gesture, and the screen capture instruction is used for triggering screen capture operation and obtaining a screen capture of the getting interface of the coupon.
Preferably, the anti-counterfeiting method for the coupon getting interface screenshot further comprises the following steps:
and extracting the user information from the anti-counterfeiting picture, and comparing the extracted user information with the written user information.
The invention also provides an anti-counterfeiting system for the coupon getting interface screenshot, which comprises a screenshot unit, a user information acquisition unit and an anti-counterfeiting picture generation unit;
the screen capture unit is used for acquiring a screen capture of a receiving interface of the coupon, and the receiving interface is used for a user logging in the receiving interface to receive the coupon;
the user information acquisition unit is used for acquiring the information of the user and representing the information of the user in a character string form;
the anti-counterfeiting picture generating unit is used for writing the information of the user into the digital image file of the screenshot to form an anti-counterfeiting picture.
Preferably, the anti-counterfeiting picture generating unit is used for converting the information of the user into an anti-counterfeiting binary sequence and writing the anti-counterfeiting binary sequence into the digital image file of the screenshot.
Preferably, the number of bits of the binary number included in the anti-fake binary sequence is N1, the number of the pixels of the screenshot is N2, and the anti-fake picture generation unit is further configured to determine the sizes of N1 and N2;
if the N1 is not greater than the N2, the anti-counterfeiting picture generation unit is further used for selecting N1 pixels of the screenshot according to a preset algorithm, and the anti-counterfeiting picture generation unit is further used for correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence;
otherwise, the anti-counterfeiting picture generating unit is further used for adding a plurality of rows of pixels below the last row of the screenshot to form an extended picture, the number of the pixels of the extended picture is not less than N1, the anti-counterfeiting picture generating unit is further used for selecting N1 pixels of the extended picture according to a preset algorithm, and the anti-counterfeiting picture generating unit is further used for correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence.
Preferably, the selected N1 pixels are N1 consecutive pixels;
the anti-counterfeiting picture generation unit is further used for correspondingly replacing the LSB of each pixel of the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence according to the arrangement sequence of the binary numbers in the anti-counterfeiting binary sequence.
Preferably, the anti-counterfeit picture generation unit is further configured to convert each character of the user information into a corresponding binary sequence, arrange the binary sequence corresponding to each character according to the arrangement order of the characters of the user information, form a first binary sequence, and use the first binary sequence as the anti-counterfeit binary sequence.
Preferably, the anti-counterfeit picture generation unit is further configured to convert each character of the user information into a corresponding binary sequence, arrange the binary sequence corresponding to each character according to the arrangement order of the characters of the user information to form a first binary sequence, encode the first binary sequence according to a preset encoding algorithm to form an encoded binary sequence, and use the encoded binary sequence as the anti-counterfeit binary sequence.
Preferably, a screen capture button is arranged on the getting interface, the screen capture button receives a click operation and then generates a screen capture instruction, and the screen capture unit is used for obtaining a screen capture of the getting interface of the coupon after receiving the screen capture instruction;
or the screen capture unit is arranged on the mobile terminal, the mobile terminal is used for logging in the getting interface, the mobile terminal is also used for detecting a preset induction gesture and generating a screen capture instruction after detecting the preset induction gesture, the screen capture instruction is used for triggering screen capture operation, and the screen capture unit is used for obtaining the screen capture of the getting interface of the coupon after receiving the screen capture instruction.
Preferably, the anti-counterfeiting system for the coupon getting interface screenshot further comprises a verification unit;
the verification unit is used for extracting the user information from the anti-counterfeiting picture and comparing the extracted user information with the written user information.
The invention also provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the anti-counterfeiting method for the coupon getting interface screenshot when executing the computer program.
The present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the coupon getting interface screenshot anti-counterfeiting method of the present invention.
The positive progress effects of the invention are as follows: the anti-counterfeiting method, the anti-counterfeiting system, the electronic equipment and the medium for the coupon picking interface screenshot hide the anti-counterfeiting information in the digital coding file of the screenshot, so that the anti-counterfeiting information is not easy to find and copy and forge, and the anti-counterfeiting effect of the screenshot of the picking interface of the coupon is greatly improved.
Drawings
Fig. 1 is a flowchart of an anti-counterfeiting method of a coupon getting interface screenshot in embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of an anti-counterfeiting system of a coupon getting interface screenshot in embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of an electronic device according to embodiment 3 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The embodiment provides an anti-counterfeiting method for a coupon getting interface screenshot, and with reference to fig. 1, the anti-counterfeiting method comprises the following steps:
s101, acquiring a screenshot of a receiving interface of the coupon, wherein the receiving interface is used for a user logging in the receiving interface to receive the coupon;
step S102, obtaining information of a user, and representing the information of the user in a character string mode;
and step S103, writing the information of the user into the digital image file of the screenshot to form an anti-counterfeiting picture.
When a user asks customer service staff of the E-commerce website to complain about the received coupon, but does not inquire related coupons in the account, the customer service staff can ask the user to capture a picture of a coupon receiving interface according to the prompt and provide the picture as evidence of successful coupon receiving. In this embodiment, a user logs in an e-commerce website through an APP (application program) of the e-commerce website by using a mobile terminal, after entering a coupon getting interface, the user shakes the mobile terminal according to an operation prompt, and after detecting the shaking gesture (preset induction gesture), an acceleration sensor of the mobile terminal generates a screen capture instruction, where the screen capture instruction is used to trigger a screen capture operation to obtain a screenshot of the getting interface of the coupon. And the APP of the E-commerce website stores the screenshot into a target directory for generating an anti-counterfeiting picture. In other optional implementation manners of the anti-counterfeiting method for the coupon getting interface screenshot, a user logs in an e-commerce website on a personal computer through a webpage of the e-commerce website, after the user enters the coupon getting interface, a screenshot button is arranged on the coupon getting interface, the user clicks the screenshot button, the screenshot button receives clicking operation and then generates a screenshot instruction, and the screenshot instruction is used for triggering screenshot operation to obtain a screenshot of the coupon getting interface.
The APP of the E-commerce website also acquires user information, the user information can uniquely identify one user, and the user information at least comprises one of the following information: the user name, the user identity information (user ID), or the device ID to which the user belongs, the user information may further include information such as a nickname and screenshot time of the user, the APP of the e-commerce website sequentially composes a character string from the user information, then converts each character in the character string into a binary subsequence according to ASCII (American Standard Code for information exchange Code), and arranges the converted binary subsequences according to the order of the character arrangement to form a first binary sequence.
In order to improve the anti-counterfeiting performance and avoid the user information leakage caused by the cracking of the anti-counterfeiting binary sequence, in this embodiment, after the first binary sequence is formed, the first binary sequence is further encoded according to a preset encoding algorithm to form an encoded binary sequence. The preset encoding algorithm employs a UTF-8(8-bit Unicode Transformation Format), algorithm. In other optional embodiments of the anti-counterfeiting method for the coupon getting interface screenshot, the preset encoding algorithm adopts an encoding algorithm such as Base64 (a character encoding algorithm).
In other optional embodiments of the anti-counterfeiting method for the coupon getting interface screenshot of the present invention, the first binary sequence is directly used as the anti-counterfeiting binary sequence.
In order to enable the device receiving the anti-counterfeiting picture to correctly extract the information of the user, in the embodiment, a fixed-degree and fixed-pattern ending binary string, such as "1111111111111110", is further added at the end of the encoding binary sequence to form the anti-counterfeiting binary sequence, and the ending binary string is used for representing the end of the anti-counterfeiting binary sequence. In the process of extracting the information of the user, when the ending binary character string "1111111111111110" is extracted, i.e. the end of the anti-fake binary sequence is definitely reached, the following pixels do not contain the binary bits of the anti-fake binary sequence.
After the anti-fake binary sequence is formed, setting the digit number of the binary number included in the anti-fake binary sequence to be N1, the number of pixels of the screenshot to be N2, and judging the sizes of N1 and N2 by the APP of the E-commerce website; if the N1 is not larger than the N2, selecting N1 pixels of the screenshot according to a preset algorithm, and correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of an anti-fake binary sequence to form an anti-fake picture; otherwise, if N1 is greater than N2, in order to avoid loss of encrypted information (anti-fake binary sequence), adding a plurality of rows of pixels below the last row of the screenshot to form an extended picture, wherein the number of the pixels of the extended picture is not less than N1, selecting N1 pixels of the extended picture according to a preset algorithm, and correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-fake binary sequence to form the anti-fake picture. In this embodiment, a specific method for adding a plurality of rows of pixels below the last row of the screenshot is to copy the last row of the screenshot by a plurality of rows and add the copied rows to the bottom of the last row of the screenshot.
In specific implementation, the arrangement sequence of the pixels of the screenshot is from left to right and from top to bottom, that is, the first pixel on the upper left of the screenshot is the first pixel of the screenshot, the adjacent pixel on the right side of the same line is the second pixel, and the first pixel on the left of the next line is the next pixel of the rightmost pixel on the upper line. If N1 is not greater than N2, the first through N1 pixels of the screenshot are selected, the LSB of the binary-coded value of the first pixel is replaced with the first binary number of the anti-fake binary sequence, the LSB of the binary-coded value of the second pixel is replaced with the second binary number of the anti-fake binary sequence, and so on, the LSB of the binary-coded value of the N1 pixel is replaced with the N1 binary number of the anti-fake binary sequence. For the case where N1 is greater than N2, further description is omitted here. Because the replacement is the LSB which has the lowest weight in the binary-coded value of the pixel, the replacement method has very little effect on the screenshot and is not noticeable to the naked eye. Therefore, the user does not know that the screenshot process is actually subjected to anti-counterfeiting processing, and cannot forge the screenshot in a targeted manner.
And then, storing the anti-counterfeiting picture into a memory of the mobile terminal by the APP of the E-commerce website. When the storage space of the memory of the mobile terminal is insufficient, the anti-counterfeiting method for the coupon getting interface screenshot further provides a step for optimizing storage, and the step adopts a storage strategy based on size, and specifically comprises the following steps: when the storage size of all cached pictures exceeds a certain storage size, the picture which is saved furthest (i.e. the saving time is the earliest) is deleted, and the latest picture is saved. In other alternative embodiments of the present invention, the step of optimizing storage employs a volume-based caching strategy, a device capacity-based caching strategy, and a time-based caching strategy. The number-based caching strategy specifically includes: when the number of the stored local pictures exceeds a certain numerical value, deleting the picture stored furthest away and storing the latest picture; the caching strategy based on the equipment capacity specifically comprises the following steps: acquiring the residual storage capacity of the equipment, deleting the picture stored furthest and storing the latest picture when the residual storage capacity of the equipment is less than a certain numerical value; the time-based caching strategy specifically comprises: and storing the pictures and recording the time for storing the pictures, and deleting the pictures when the time for storing the pictures exceeds a certain time.
After receiving the screenshot (anti-counterfeiting picture) submitted by the user, the customer service personnel extracts the information of the user from the anti-counterfeiting picture by adopting a computer program, namely, referring to fig. 1, the anti-counterfeiting method for the coupon getting interface screenshot further comprises the following steps:
and 104, extracting the user information from the anti-counterfeiting picture, and comparing the extracted user information with the written user information.
Specifically, the LSB of each pixel is acquired one by one from the first pixel of the anti-counterfeiting picture, the acquired bits are arranged into a binary sequence (referred to as a "recovery binary sequence") according to the acquisition sequence, and when a tail binary character string "1111111111111110" appears in the recovery binary sequence, it indicates that the end of the anti-counterfeiting binary sequence has been reached, and the acquisition is not performed any more. And then, decoding the partial sequence of the recovered binary sequence except the tail binary character string '1111111111111110' by using a UTF-8 algorithm to obtain a decoded binary sequence. Then dividing the decoded binary sequence into a plurality of binary subsequences, converting each binary subsequence into characters according to ASCII, and connecting the characters in series in sequence to form recovered user information. And finally, comparing the recovered user information with the user information (the information of the user can be inquired by customer service staff), and if the comparison is successful, showing that the screenshot provided by the user is real and can be used as evidence. Because the anti-counterfeiting information (anti-counterfeiting binary sequence) formed by the anti-counterfeiting method of the embodiment cannot be perceived by naked eyes in the screenshot, a user does not know that the screenshot process is actually subjected to anti-counterfeiting processing, and cannot specifically forge the screenshot. If the user does not capture the screenshot through the APP of the e-commerce website, the anti-counterfeiting operation of the anti-counterfeiting method of the embodiment cannot be performed, and the screenshot provided by the user does not contain the information of the user and cannot be used as the evidence of the complaint. The anti-counterfeiting method can help the e-commerce website to effectively avoid loss caused by counterfeiting of the screenshot of the receiving interface of the coupon by the user.
Example 2
The embodiment provides an anti-counterfeiting system for a coupon getting interface screenshot, which can implement the steps of the anti-counterfeiting method for the coupon getting interface screenshot of embodiment 1, and with reference to fig. 2, the anti-counterfeiting system includes a screenshot unit 201, a user information obtaining unit 202, and an anti-counterfeiting picture generating unit 203. The screen capture unit is used for acquiring a screen capture of a receiving interface of the coupon, and the receiving interface is used for a user logging in the receiving interface to receive the coupon; the user information acquisition unit is used for acquiring the information of the user and representing the information of the user in a character string form; the anti-counterfeiting picture generating unit is used for writing the information of the user into the digital image file of the screenshot to form an anti-counterfeiting picture.
When a user asks customer service staff of the E-commerce website to complain about the received coupon, but does not inquire related coupons in the account, the customer service staff can ask the user to capture a picture of a coupon receiving interface according to the prompt and provide the picture as evidence of successful coupon receiving. In this embodiment, a user logs in to an e-commerce website using a mobile terminal, and the anti-counterfeiting system of the coupon getting interface screenshot of this embodiment is disposed in the mobile terminal and is in communication connection with the mobile terminal. After a user enters a coupon picking interface, shaking the mobile terminal according to an operation prompt, generating a screen capture instruction after an acceleration sensor of the mobile terminal detects the shaking gesture (a preset induction gesture), receiving the screen capture instruction by a screen capture unit, carrying out screen capture operation, and obtaining a screen capture of the coupon picking interface. And the screenshot unit stores the screenshot to a target directory for generating an anti-counterfeiting picture. In other optional embodiments of the anti-counterfeiting system for the coupon getting interface screenshot, the anti-counterfeiting system for the coupon getting interface screenshot is arranged on a personal computer, a user logs in an e-commerce website on the personal computer through a webpage of the e-commerce website, after entering the coupon getting interface, the getting interface of the coupon is provided with a screenshot button, the user clicks the screenshot button, the screenshot button receives a clicking operation and then generates a screenshot instruction, and a screenshot unit receives the screenshot instruction and performs a screenshot operation to obtain the screenshot of the getting interface of the coupon.
The user information acquisition unit acquires user information which can uniquely identify one user, and the user information at least comprises one of the following information: the user name, the user identity information (user ID) or the device ID of the user, the user information can also comprise the nickname, screenshot time and other information of the user, and the APP of the e-commerce website sequentially forms a character string with the user information. Then, the forgery-preventing picture generating unit converts each character in the character string into a binary subsequence according to ASCII (American Standard Code for information Interchange), and arranges the converted binary subsequences in the order of character arrangement to form a first binary sequence.
In order to improve the anti-counterfeiting performance and avoid the user information leakage caused by the cracking of the anti-counterfeiting binary sequence, in this embodiment, after the first binary sequence is formed, the anti-counterfeiting picture generating unit further encodes the first binary sequence according to a preset encoding algorithm to form an encoded binary sequence. The preset encoding algorithm employs a UTF-8(8-bit Unicode transform format, a character encoding algorithm) algorithm. In other optional embodiments of the anti-counterfeiting system for the coupon getting interface screenshot, the preset encoding algorithm is based 64 (a character encoding algorithm) or other encoding algorithms.
In other optional embodiments of the anti-counterfeiting system of the coupon getting interface screenshot of the present invention, the anti-counterfeiting picture generating unit directly takes the first binary sequence as the anti-counterfeiting binary sequence.
In order to enable the device receiving the security picture to correctly extract the user's information, in the present embodiment, in view of the fact that the lengths of the encoded binary sequences generated according to different user information may be different, the security picture generation unit further adds a fixed-degree, fixed-pattern ending binary string, such as "1111111111111110", at the end of the encoded binary sequence to form the security binary sequence, and the ending binary string is used to characterize the end of the security binary sequence. In the process of extracting the information of the user, when the ending binary character string "1111111111111110" is extracted, i.e. the end of the anti-fake binary sequence is definitely reached, the following pixels do not contain the binary bits of the anti-fake binary sequence.
After the anti-fake binary sequence is formed, setting the digit number of the binary number included in the anti-fake binary sequence to be N1, the number of the pixels of the screenshot to be N2, and judging the sizes of N1 and N2 by the anti-fake picture generating unit; if N1 is not larger than N2, the anti-counterfeiting picture generation unit selects N1 pixels of the screenshot according to a preset algorithm, and the anti-counterfeiting picture generation unit correspondingly replaces the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence to form an anti-counterfeiting picture; otherwise, if N1 is greater than N2, in order to avoid loss of encrypted information (anti-fake binary sequence), the anti-fake image generation unit adds a plurality of rows of pixels below the last row of the screenshot to form an extended image, the number of the pixels of the extended image is not less than N1, the anti-fake image generation unit selects N1 pixels of the extended image according to a preset algorithm, and the anti-fake image generation unit correspondingly replaces the LSB of each pixel of the selected N1 pixels with a one-bit binary number of the anti-fake binary sequence to form the anti-fake image. In this embodiment, a specific method for adding a plurality of rows of pixels below the last row of the screenshot is to copy the last row of the screenshot by a plurality of rows and add the copied rows to the bottom of the last row of the screenshot.
In specific implementation, the arrangement sequence of the pixels of the screenshot is from left to right and from top to bottom, that is, the first pixel on the upper left of the screenshot is the first pixel of the screenshot, the adjacent pixel on the right side of the same line is the second pixel, and the first pixel on the left of the next line is the next pixel of the rightmost pixel on the upper line. If N1 is not greater than N2, the anti-counterfeit picture generation unit selects the first pixel to the N1 th pixel of the screenshot, replaces the LSB of the binary coded value of the first pixel with the first binary number of the anti-counterfeit binary sequence, replaces the LSB of the binary coded value of the second pixel with the second binary number of the anti-counterfeit binary sequence, and so on, replaces the LSB of the binary coded value of the N1 th pixel with the N1 th binary number of the anti-counterfeit binary sequence. For the case where N1 is greater than N2, further description is omitted here. Because the replacement is the LSB which has the lowest weight in the binary-coded value of the pixel, the replacement method has very little effect on the screenshot and is not noticeable to the naked eye. Therefore, the user does not know that the screenshot process is actually subjected to anti-counterfeiting processing, and cannot forge the screenshot in a targeted manner.
And then, the anti-counterfeiting picture generating unit stores the anti-counterfeiting picture into a memory of the mobile terminal. When the storage space of the memory of the mobile terminal is insufficient, the anti-counterfeiting picture generation unit is also used for optimizing storage, and the optimized storage adopts a storage strategy based on size, which specifically comprises the following steps: when the storage size of all cached pictures exceeds a certain storage size, the picture which is saved furthest (i.e. the saving time is the earliest) is deleted, and the latest picture is saved. In other alternative embodiments of the present invention, the optimized storage uses a number-based caching strategy, a device capacity-based caching strategy, and a time-based caching strategy. The number-based caching strategy specifically includes: when the number of the stored local pictures exceeds a certain numerical value, deleting the picture stored furthest away and storing the latest picture; the caching strategy based on the equipment capacity specifically comprises the following steps: acquiring the residual storage capacity of the equipment, deleting the picture stored furthest and storing the latest picture when the residual storage capacity of the equipment is less than a certain numerical value; the time-based caching strategy specifically comprises: and storing the pictures and recording the time for storing the pictures, and deleting the pictures when the time for storing the pictures exceeds a certain time.
Referring to fig. 2, the anti-counterfeiting system for capturing a screenshot in a coupon getting interface of the present embodiment further includes a verification unit 204, configured to extract user information from the anti-counterfeiting picture, and compare the extracted user information with the written user information. After receiving a screenshot (anti-counterfeiting picture) submitted by a user, a customer service person extracts user information from the anti-counterfeiting picture by using a verification unit, and the verification unit specifically operates to acquire LSBs of all pixels one by one from a first pixel of the anti-counterfeiting picture, arrange the acquired LSBs into a binary sequence (called a recovery binary sequence) according to the acquired sequence, and when a tail binary character string '1111111111111110' appears in the recovery binary sequence, indicate that the tail of the anti-counterfeiting binary sequence is reached and the acquisition is not performed any more. Then, the verification unit decodes the partial sequence of the recovered binary sequence except the ending binary character string "1111111111111110" by using the UTF-8 algorithm to obtain a decoded binary sequence. Then, the verification unit divides the decoded binary sequence into a plurality of binary subsequences, converts each binary subsequence into characters according to ASCII, and concatenates the characters in order to form the restored user information. And finally, the verification unit compares the recovered user information with the user information (the information that the customer service staff can inquire the user), and if the comparison is successful, the screenshot provided by the user is real and can be used as evidence. Because the anti-counterfeiting information (anti-counterfeiting binary sequence) formed by the anti-counterfeiting system of the embodiment cannot be perceived by naked eyes in the screenshot, a user does not know that the screenshot process is actually subjected to anti-counterfeiting processing, and cannot forge the screenshot in a targeted manner. If the user does not perform screenshot on the mobile terminal according to the prompt of the customer service staff, the anti-counterfeiting system of the embodiment cannot be started, the anti-counterfeiting operation cannot be performed, and the screenshot provided by the user does not contain the information of the user and cannot be used as the evidence of complaint. The anti-counterfeiting system can help the e-commerce website to effectively avoid loss caused by counterfeiting of the screenshot of the receiving interface of the coupon by the user.
Example 3
Fig. 3 is a schematic structural diagram of an electronic device according to embodiment 3 of the present invention. The electronic device comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the anti-counterfeiting method of the coupon getting interface screenshot of the embodiment 1. The electronic device 30 shown in fig. 3 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.
As shown in fig. 3, the electronic device 30 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of the electronic device 30 may include, but are not limited to: the at least one processor 31, the at least one memory 32, and a bus 33 connecting the various system components (including the memory 32 and the processor 31).
The bus 33 includes a data bus, an address bus, and a control bus.
The memory 32 may include volatile memory, such as Random Access Memory (RAM)321 and/or cache memory 322, and may further include Read Only Memory (ROM) 323.
The processor 31 executes various functional applications and data processing, such as a drive letter allocation method of the external storage device according to embodiment 1 of the present invention, by running the computer program stored in the memory 32.
The electronic device 30 may also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). Such communication may be through input/output (I/O) interfaces 35. Also, model-generating device 30 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via network adapter 36. As shown, network adapter 36 communicates with the other modules of model-generating device 30 via bus 33. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
Example 4
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the anti-counterfeiting method of the coupon getting interface screenshot of embodiment 1.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes program code for causing a terminal device to execute the steps of implementing the anti-counterfeiting method of the coupon getting interface screenshot of example 1 when the program product runs on the terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (18)
1. An anti-counterfeiting method for a coupon getting interface screenshot is characterized by comprising the following steps:
acquiring a screenshot of a receiving interface of the coupon, wherein the receiving interface is used for a user logging in the receiving interface to receive the coupon;
acquiring the information of the user, and representing the information of the user in a character string form;
and writing the information of the user into the digital image file of the screenshot to form an anti-counterfeiting picture.
2. The method of claim 1, wherein writing the user's information into the digital image file of the screenshot comprises:
and converting the information of the user into an anti-fake binary sequence, and writing the anti-fake binary sequence into the digital image file of the screenshot.
3. The method of claim 2, wherein assuming that the number of bits of the binary number included in the anti-counterfeit binary sequence is N1 and the number of pixels of the screen shot is N2, the step of writing the anti-counterfeit binary sequence into the digital image file of the screen shot comprises:
judging the sizes of N1 and N2; if N1 is not greater than N2, selecting N1 pixels of the screenshot according to a preset algorithm, and replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-fake binary sequence; otherwise, adding a plurality of rows of pixels below the last row of the screenshot to form an extended picture, wherein the number of the pixels of the extended picture is not less than N1, selecting N1 pixels of the extended picture according to a preset algorithm, and correspondingly replacing the LSB of each pixel in the selected N1 pixels with a one-bit binary number of the anti-fake binary sequence.
4. The method of claim 3, wherein the selected N1 pixels are N1 consecutive pixels;
the step of replacing the LSB correspondence of each of the N1 selected pixels with a one-bit binary number of the anti-fake binary sequence includes:
and correspondingly replacing the LSB of each pixel in the selected N1 pixels by a one-bit binary number of the anti-fake binary sequence according to the arrangement sequence of the binary numbers in the anti-fake binary sequence.
5. The method of claim 2, wherein the step of converting the user's information into an anti-counterfeiting binary sequence comprises:
converting each character of the user information into a corresponding binary sequence, arranging the binary sequence corresponding to each character according to the arrangement sequence of the characters of the user information to form a first binary sequence, and taking the first binary sequence as the anti-fake binary sequence.
6. The method of claim 2, wherein the step of converting the user's information into an anti-counterfeiting binary sequence comprises:
converting each character of the user information into a corresponding binary sequence, arranging the binary sequence corresponding to each character according to the arrangement sequence of the characters of the user information to form a first binary sequence, coding the first binary sequence according to a preset coding algorithm to form a coded binary sequence, and taking the coded binary sequence as the anti-fake binary sequence.
7. The method for preventing forgery of a screenshot of a coupon pickup interface according to claim 1, wherein said step of obtaining a screenshot of a coupon pickup interface comprises:
a screen capture button is arranged on the getting interface, and generates a screen capture instruction after receiving a click operation, wherein the screen capture instruction is used for triggering the screen capture operation to obtain a screen capture of the getting interface of the coupon;
or logging in the getting interface on a mobile terminal, wherein the mobile terminal is used for detecting a preset induction gesture and generating a screen capture instruction after detecting the preset induction gesture, and the screen capture instruction is used for triggering screen capture operation and obtaining a screen capture of the getting interface of the coupon.
8. The method for preventing counterfeiting of a coupon pickup interface screen shot according to claim 1, wherein the method for preventing counterfeiting of a coupon pickup interface screen shot further comprises the steps of:
and extracting the user information from the anti-counterfeiting picture, and comparing the extracted user information with the written user information.
9. An anti-counterfeiting system for a coupon getting interface screenshot is characterized by comprising a screenshot unit, a user information acquisition unit and an anti-counterfeiting picture generation unit;
the screen capture unit is used for acquiring a screen capture of a receiving interface of the coupon, and the receiving interface is used for a user logging in the receiving interface to receive the coupon;
the user information acquisition unit is used for acquiring the information of the user and representing the information of the user in a character string form;
the anti-counterfeiting picture generating unit is used for writing the information of the user into the digital image file of the screenshot to form an anti-counterfeiting picture.
10. The system of claim 9, wherein the anti-counterfeiting image generation unit is configured to convert the user's information into an anti-counterfeiting binary sequence and write the anti-counterfeiting binary sequence into the digital image file of the screenshot.
11. The system for preventing forgery of a coupon pickup interface screen shot according to claim 10, wherein the number of bits of binary digits included in the anti-forgery binary sequence is N1, the number of pixels of the screen shot is N2, and the anti-forgery image generation unit is further configured to determine the sizes of N1 and N2;
if the N1 is not greater than the N2, the anti-counterfeiting picture generation unit is further configured to select N1 pixels of the screenshot according to a preset algorithm, and the anti-counterfeiting picture generation unit is further configured to replace the LSB of each pixel of the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence;
otherwise, the anti-counterfeiting picture generating unit is further configured to add a plurality of rows of pixels below the last row of the screenshot to form an extended picture, the number of the pixels of the extended picture is not less than N1, the anti-counterfeiting picture generating unit is further configured to select N1 pixels of the extended picture according to a preset algorithm, and the anti-counterfeiting picture generating unit is further configured to replace the LSB of each of the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence.
12. The system for preventing counterfeiting of a coupon pickup interface screen shot according to claim 11, wherein the selected N1 pixels are N1 consecutive pixels;
the anti-counterfeiting picture generating unit is further used for correspondingly replacing the LSB of each pixel of the selected N1 pixels with a one-bit binary number of the anti-counterfeiting binary sequence according to the arrangement sequence of the binary numbers in the anti-counterfeiting binary sequence.
13. The system of claim 10, wherein the image generation unit is further configured to convert each character of the user's information into a corresponding binary sequence, arrange the binary sequence corresponding to each character according to an arrangement order of the characters of the user's information to form a first binary sequence, and use the first binary sequence as the anti-counterfeit binary sequence.
14. The system of claim 10, wherein the image generation unit is further configured to convert each character of the user information into a corresponding binary sequence, arrange the binary sequence corresponding to each character according to an arrangement order of the characters of the user information to form a first binary sequence, encode the first binary sequence according to a preset encoding algorithm to form an encoded binary sequence, and use the encoded binary sequence as the anti-counterfeit binary sequence.
15. The coupon picking interface screen shot anti-counterfeiting system according to claim 9,
the receiving interface is provided with a screen capture button, the screen capture button receives a click operation and then generates a screen capture instruction, and the screen capture unit is used for acquiring a screen capture of the receiving interface of the coupon after receiving the screen capture instruction;
or the screen capture unit is arranged on a mobile terminal, the mobile terminal is used for logging in the getting interface, the mobile terminal is further used for detecting a preset induction gesture and generating a screen capture instruction after detecting the preset induction gesture, the screen capture instruction is used for triggering screen capture operation, and the screen capture unit is used for obtaining the screen capture of the getting interface of the coupon after receiving the screen capture instruction.
16. The system for preventing counterfeiting of a coupon pickup interface screen shot according to claim 9, wherein the system for preventing counterfeiting of a coupon pickup interface screen shot further comprises a verification unit;
the verification unit is used for extracting the user information from the anti-counterfeiting picture and comparing the extracted user information with the written user information.
17. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the anti-counterfeiting method of the coupon picking interface screenshot of any of claims 1-8 when executing the computer program.
18. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the anti-counterfeiting method of a coupon getting interface screenshot according to any one of claims 1 to 8.
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