CN110262908A - A method and device for processing shear plate data - Google Patents

Abstract

The present application provides a method and device for processing clipboard data, which are used to improve the security of clipboard data. The method includes: acquiring clipboard data when detecting a cut operation or a copy operation on data; judging whether the clipboard data contains at least one word in a preset vocabulary set; if the cut If the board data contains at least one vocabulary in the preset vocabulary set, the clipboard data is encrypted; and the encrypted data is sent to the clipboard.

Description

A method and device for processing shear plate data

technical field

The present application relates to the field of computing technology, in particular to a method and device for processing shear plate data.

Background technique

When the user performs a copy or cut operation on data, the data will be cached on the clipboard, and the part of the data that the user performs the copy or cut operation is called clipboard data. The clipboard in the terminal device is generally universal, that is, any application can listen to and copy the clipboard data at will, but in this way, the clipboard data may be leaked, causing user losses.

Contents of the invention

Embodiments of the present application provide a clipboard data processing method and device, which are used to encrypt the clipboard data and improve the security of the clipboard data.

In the first aspect, a method for encrypting clipboard data is provided, including:

Obtain clipboard data when a cut or copy operation is detected on the data;

judging whether the clipboard data contains at least one vocabulary in the preset vocabulary set;

If the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypt the clipboard data;

Send the encrypted data to the clipboard.

In the embodiment of the present application, before the clipboard data is sent to the clipboard data, the clipboard data is encrypted to ensure the security of the clipboard data. Moreover, before encrypting the clipboard data, it will be determined whether the clipboard data contains the vocabulary in the preset vocabulary set, and if the clipboard data contains vocabulary, the clipboard data will be encrypted , compared with the method of encrypting all clipboard data, it can reduce the amount of encrypted data, thereby reducing the computational overhead of encrypting clipboard data. Moreover, since in the embodiment of the present application, there is no need to encrypt the data that does not contain the vocabulary in the preset vocabulary set, it can improve the efficiency of the user pasting and obtaining the data that does not contain the vocabulary in the preset vocabulary set, and improve the user's use of the clipboard. experience.

In a possible embodiment, if the clipboard data contains at least one vocabulary in the preset vocabulary set, encrypting the data includes:

If the clipboard data contains at least one vocabulary in the preset vocabulary set, then determine the security level of the clipboard data;

Determine an encryption algorithm for encrypting the clipboard data according to the security level of the clipboard data;

Perform encryption processing on the clipboard data according to the encryption algorithm used to encrypt the clipboard data.

In this embodiment of the application, after it is determined that the clipboard data contains the vocabulary in the preset vocabulary set, the security level of the clipboard data that needs to be encrypted is determined, and the clipboard data is determined according to the security level of the clipboard data. The encryption algorithm of board data, that is to say, the encryption algorithms used by data with different security levels may not be exactly the same, so that not only can the corresponding data be encrypted to ensure the security of the corresponding data, but the encryption algorithm with low encryption strength Generally, the calculation overhead is relatively small, so classifying and encrypting the data can also reduce the calculation overhead of the processing device as much as possible.

In a possible embodiment, determining the security level of the data includes:

Determine the security level of the clipboard data, including:

determining the security level of each vocabulary in the at least one vocabulary, and the security level with the highest security level in the at least one vocabulary is the security level of the clipboard data; or,

According to the application corresponding to the clipboard data and the corresponding relationship, determine the security level corresponding to the clipboard data; wherein, the application corresponding to the clipboard data means that the clipboard data comes from the The above-mentioned application, the correspondence is the correspondence between different applications and different security levels.

In the embodiment of the present application, two ways of determining the security level of the clipboard data are provided, one is the highest security level corresponding to the corresponding vocabulary in the clipboard data, which is the security level corresponding to the clipboard data, Meet the encryption requirements of sensitive information; one is to use the security level corresponding to the application of the clipboard data source as the security level of the clipboard data to meet the security requirements of data from different sources. It can be flexibly selected according to actual needs, and the flexibility of the encrypted clipboard data of the processing device can be improved.

In one possible embodiment,

If the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypting the clipboard data includes:

Encrypt the clipboard data according to a first encryption algorithm to obtain a ciphertext string;

Encapsulating the ciphertext string and the clipboard data to obtain encrypted data.

In the embodiment of the present application, the clipboard data is encrypted, and the encrypted ciphertext string is used as a data header and encapsulated together with the clipboard data, so as to facilitate later verification based on the data header whether the clipboard data has been tampered with.

In a possible embodiment, after sending the encrypted data to the clipboard, include:

When an operation of obtaining the clipboard data from the clipboard is detected, obtain the encrypted data from the clipboard;

According to the first encryption algorithm, decrypt the ciphertext character string in the encrypted data to obtain the decrypted data;

If the data after the decryption process matches the data in the data after the encryption process, then according to the operation of obtaining the clipboard data from the clipboard, send the data after the decryption process to the clipboard or corresponding application;

If the decrypted data does not match the encrypted data, the user is prompted that the clipboard data has been tampered with.

In the embodiment of this application, the decrypted data header is used to verify whether the encrypted data has been tampered with, so as to ensure that the data provided to the user is not tampered data, improve the security of the user's data, and avoid tampering by criminals. After the virus and other data are implanted into the corresponding application.

In a possible embodiment, encapsulating the ciphertext string and the clipboard data to obtain encrypted data includes:

Pre-encrypting the clipboard data according to a second encryption algorithm to obtain pre-encrypted data;

Obfuscating the pre-encrypted data to obtain the obfuscated data;

Encapsulating the ciphertext string and the obfuscated data to obtain encrypted data. In this embodiment of the application, in addition to adding a data header that can be used to verify the clipboard data, the clipboard data is also encrypted and obfuscated to increase the difficulty for criminals to crack the data and further improve the security of the encrypted clipboard data. encryption strength.

In a second aspect, a processing device for clipboard data is provided, including:

An acquisition module, configured to acquire clipboard data when a cut or copy operation is detected on the data;

A judging module, configured to judge whether the clipboard data contains at least one vocabulary in the preset vocabulary set;

An encryption module, if the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypt the clipboard data;

The sending module is used to send the encrypted data to the clipboard.

In a possible embodiment, the encryption module is specifically used for:

If the clipboard data contains at least one vocabulary in the preset vocabulary set, then determine the security level of the clipboard data;

Determine an encryption algorithm for encrypting the clipboard data according to the security level of the clipboard data;

Perform encryption processing on the clipboard data according to the encryption algorithm used to encrypt the clipboard data.

In a possible embodiment, the encryption module is specifically used for:

determining the security level of each vocabulary in the at least one vocabulary, and the security level with the highest security level in the at least one vocabulary is the security level of the clipboard data; or,

According to the application corresponding to the clipboard data and the corresponding relationship, determine the security level corresponding to the clipboard data; wherein, the application corresponding to the clipboard data means that the clipboard data comes from the The above-mentioned application, the correspondence is the correspondence between different applications and different security levels.

In a possible embodiment, the encryption module is specifically used for:

Encrypt the clipboard data according to a first encryption algorithm to obtain a ciphertext string;

Encapsulating the ciphertext string and the clipboard data to obtain encrypted data.

In a possible embodiment, the processing device further includes a decryption module and a prompt module, wherein:

The obtaining module is further configured to obtain the data from the clipboard when an operation of obtaining the clipboard data from the clipboard is detected after the encrypted data is sent to the clipboard. encrypted data;

The decryption module, according to the first encryption algorithm, decrypts the ciphertext string in the encrypted data to obtain the decrypted data;

The sending module is further configured to, if the decrypted data matches the data in the encrypted data, according to the operation of obtaining the clipboard data from the clipboard, send The decrypted data is sent to the clipboard or a corresponding application;

The prompting module is configured to prompt the user that the clipboard data has been tampered with if the decrypted data does not match the encrypted data.

In a possible embodiment, the encryption module is specifically used for:

Pre-encrypting the clipboard data according to a second encryption algorithm to obtain pre-encrypted data;

Obfuscating the pre-encrypted data to obtain the obfuscated data;

Encapsulating the ciphertext string and the obfuscated data to obtain encrypted data.

In a third aspect, a processing device for clipboard data is provided, including:

at least one processor, and

memory communicatively coupled to the at least one processor;

Wherein, the memory stores instructions that can be executed by the at least one processor, and the at least one processor executes the instructions stored in the memory to implement the instructions described in any one of the first aspect and a possible embodiment. described method.

In a fourth aspect, a computer-readable storage medium is provided, the computer-readable storage medium stores computer instructions, and when the computer instructions are run on a computer, the computer executes the first aspect and a possible embodiment. any one of the methods described.

Description of drawings

FIG. 1 is an application scene diagram of a method for processing clipboard data provided by an embodiment of the present application;

FIG. 2 is a flow chart of a method for processing clipboard data provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a process of encrypting clipboard data provided by an embodiment of the present application;

FIG. 4 is a second schematic diagram of the process of encrypting clipboard data provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of a process of decrypting clipboard data provided by an embodiment of the present application;

FIG. 6 is a first structural diagram of a processing device for clipboard data provided by an embodiment of the present application;

FIG. 7 is a second structural diagram of a processing device for clipboard data provided by an embodiment of the present application.

Detailed ways

In order to better understand the technical solutions provided by the embodiments of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation manners.

The prior art related to this application will be described below.

After the user performs a cut or copy operation, any application in the terminal device can access the clipboard data, and criminals may monitor the clipboard data. For example, since the virtual currency wallet address and private key are generally relatively long, the user usually copies the virtual currency wallet address and private key into the corresponding application by cutting or copying. If criminals listen to the clipboard and obtain the virtual currency wallet address and private key, they can use the user's virtual wallet address and private key to obtain the property in the user's virtual wallet.

In view of this, an embodiment of the present application provides a method for processing clipboard data, the method is executed by a processing device, and the processing device can be implemented by a software module in the terminal device, such as the operating system in the terminal device. The service (service) of the belt or the plug-in embedded in the operating system, etc., the service of the operating system can be realized by the clipboard service (Clip boardService) in the operating system service, for example. Wherein, the terminal device is, for example, a mobile phone or a personal computer.

The application scenario of the method will be described below first.

Referring to FIG. 1 , the application scenario includes a first application 11 , a processing device 12 , a clipboard 13 and a second application 14 . The first application 11 and the second application 14 refer to applications installed by the user in the terminal device or provided by the terminal device. The first application 11 and the second application 14 may be the same application or different applications.

Specifically, after the user performs a copy operation or a cut operation on the data in the first application 11, the data is regarded as clipboard data, and the processing device 12 responds to the copy operation or cut operation, and determines whether the clipboard data Whether the vocabulary in the preset vocabulary set is included, and if so, the clipboard data is encrypted, and the encrypted data is sent to the clipboard 13 .

After the user performs a copy operation or cut operation on the data in the first application 11, the user may want to paste the data into the second application 14, when it is detected that the user performs an operation of obtaining data from the clipboard 13 In response to this operation, the processing device 12 decrypts the encrypted data and sends the decrypted data to the second application 14 .

On the basis of the application scenario in FIG. 1, in conjunction with FIG. 2, the judging data involved in the processing device 12 in the embodiment of the present application includes the vocabulary process in the preset vocabulary set, the clipboard data encryption process, and the data decryption process. process etc. are described in detail.

Users want to reduce the input workload, or want to copy data in one application to another application, the user can perform copy operation or cut operation on the data. The processing device 12 executes step 201, that is, acquires the clipboard data when detecting that the user performs a copy operation or a cut operation on the data.

Among them, there are many ways of copying. For example, after the user selects the data, he can use the shortcut key to perform the copying operation, he can also use the mouse to click the copying command, and he can also use the voice input device to trigger the copying operation, etc. The manner of the cutting operation may refer to the manner of the copying operation, which will not be repeated here. The content form of the data is text, picture, video or voice, etc.

Specifically, the processing device 12 is set in advance with permissions to access applications in the terminal device and the clipboard 13 . When the processing device 12 detects that the user performs a copy or cut operation on the data, the processing device 12 responds to the copy operation or the cut operation, and acquires the clipboard data from the application corresponding to the user's current copy or cut operation. The clipboard data includes the data content selected by the user, and may also include the data format. In addition to obtaining the clipboard data, the application corresponding to the clipboard data can also be obtained, that is, which application the clipboard data comes from. For example, the processing device 12 obtains the clipboard data from the first application 11 , then the application corresponding to the clipboard data is the first application 11 .

As an embodiment, in order to facilitate the analysis of the clipboard data by the processing device 12 later, the processing device 12 may acquire the context information of the clipboard data while acquiring the clipboard data. The context information refers to the data within the preset range of the clipboard data. For example, the clipboard data is a piece of text, and the context information refers to the content of the previous part of the clipboard data and the content of the latter part of the clipboard data.

After the processing device 12 acquires the clipboard data, it executes step 202 , that is, it determines whether the clipboard data contains at least one vocabulary in the preset vocabulary set.

Specifically, the vocabulary set is pre-stored in the processing device 12, or the vocabulary set is stored in another location of the terminal device, and the processing device 12 has the right to access the location to obtain the vocabulary set.

The vocabulary set includes vocabulary used to represent important personal information, and the personal information includes property information, identity information, and the like. The vocabulary set may also include a security level corresponding to each vocabulary, and the security level may be understood as the importance of the data corresponding to the vocabulary to the user. For example, after some vocabulary is leaked, the loss to users may be greater, and the security level of the vocabulary may be higher.

For example, the vocabulary set is shown in Table 1.

Table 1

After the processing device 12 acquires the clipboard data, the processing device 12 matches the clipboard data with the vocabulary set. As discussed above, the content forms of the clipboard data may be varied. For different content forms, the processing device 12 may also have different ways of matching the clipboard data with the vocabulary set. The following combines different contents Form, which describes how the clipboard data is matched to the vocabulary set.

One way to match is:

The processing device 12 obtains keywords corresponding to the clipboard data by analyzing the clipboard data, and uses the keywords to match the words in the vocabulary set.

A1. If the content of the clipboard data is in the form of text, the processing device 12 splits the text to obtain vocabulary included in the clipboard data, and these vocabulary are keywords of the clipboard data.

A2, if the content form of the clipboard data is a picture, the processing device 12 performs optical character recognition (Optical Character Recognition, OCR) on the clipboard data, and recognizes the text in the picture, and the recognized text can be the clipboard data. Key words corresponding to board data. Alternatively, image classification processing is performed on the image to obtain key elements in the image, which are keywords corresponding to the clipboard data, such as characters and human faces in the image.

A3, if the content of the clipboard data is a video, the processing device 12 may determine the keywords of the video according to the context information of the video.

A4, if the content of the clipboard data is in the form of speech, the processing device 12 can convert the speech into a sentence using speech recognition technology, split and process the sentence, and obtain the vocabulary corresponding to the clipboard data. These vocabulary are The keyword corresponding to the clipboard data.

After obtaining the keywords of the clipboard data, the processing device 12 may use a matching method to match the keywords with the vocabulary set. There are many matching methods, and an example will be described below.

One way to match is:

Specifically, the processing device 12 may determine that there is a vocabulary identical to the keyword in the vocabulary set, then determine that the clipboard data contains the vocabulary in the preset vocabulary set, and determine that the clipboard data contains The number of words in the preset vocabulary set. If the keyword in the clipboard data does not have the same vocabulary as that in the vocabulary set, it is determined that the clipboard data does not contain the vocabulary in the preset vocabulary vocabulary set.

In the embodiment of the present application, the exact matching method is directly used for matching. If the clipboard data includes the same vocabulary as the vocabulary set, it is determined that the clipboard data contains vocabulary. Such a matching method is simple and direct. The processing device 12 It can quickly and directly determine whether the clipboard data contains words.

One way to match is:

The processing device 12 can match keywords and vocabulary sets in a fuzzy matching manner:

Specifically, the processing device 12 may also determine the word vector corresponding to the keyword in the clipboard data, if the similarity between the word vector of the keyword and the word vector of the vocabulary in the preset vocabulary set is greater than or equal to the preset threshold, Then it is determined that the clipboard data includes the vocabulary in the preset vocabulary set, and the number of the vocabulary included in the clipboard data is determined. The processing device 12 may determine the word vectors of each vocabulary according to a preset word vector acquisition model.

In the embodiment of the present application, the word vectors of keywords and word vectors of vocabulary are used for fuzzy matching, which can deeply mine the characteristics of keywords, match the data containing vocabulary to the greatest extent, and avoid missing important data.

If the processing device 12 determines that the clipboard data does not contain the vocabulary in the preset vocabulary set, the processing device 12 does not encrypt the data, and executes step 203, that is, sends the clipboard data to the clipboard. If it is determined that the data contains at least one vocabulary in the preset vocabulary set, step 204 is executed, that is, the clipboard data is encrypted.

There are many ways for the processing device 12 to encrypt data, and examples are described below.

method one:

Please refer to Figure 3, this method specifically includes:

Step 301, determining the security level of the data;

Step 302, according to the security level of the data, determine the encryption algorithm used to encrypt the clipboard data.

Step 303, encrypting the clipboard data according to the encryption algorithm used to encrypt the clipboard data.

The manner in which the processing device 12 executes step 301 is described below with an example.

B1, the processing device 12 determines the security level of the clipboard data according to the security level corresponding to one or more words included in the data. The higher the security level of the clipboard data, the higher the importance of the clipboard data, which is equivalent to the more important the clipboard data.

Specifically, in step 203, the processing device 12 obtains at least one vocabulary contained in the clipboard data, and according to the security level of each vocabulary in the pre-stored vocabulary set, determines each The security level of a vocabulary. Since the clipboard data may contain one or more words, the processing device 12 determines that the words in the clipboard data may correspond to multiple security levels, and the processing device 12 may use the security level with the highest security level in the vocabulary as the clipboard data. Security level for sliced data.

For example, the clipboard data obtained by the processing device 12 is "the address is XLLXXXXXXXXXXXXXXXXXXXXXX", the processing device 12 determines that the clipboard data is the address of the virtual currency wallet, continuing to take the vocabulary set shown in Table 1 as an example, the processing device 12 according to the table 1 Determine that the security level of the clipboard data is 3.

B2, the processing device 12 determines the security level of the clipboard data according to the application corresponding to the clipboard data and the corresponding relationship.

Specifically, the corresponding relationship is pre-stored in the processing device 12, that is, the security level corresponding to each application. As discussed in step 201 above, when the processing device 12 obtains the clipboard data, it also obtains which application the clipboard data comes from, then the processing device 12 can use the application corresponding to the clipboard data and the corresponding relationship to determine the security level corresponding to the clipboard data.

For example, the processing device 12 pre-stores the correspondence shown in Table 2 below.

Table 2

application Security Level Reading Apps (Application 1, Application 2) 1 Social Apps (App 3, App 4) 2 Payment App (App 5, App 6) 3

The processing device 12 determines that the clipboard data comes from application 1, and the processing device 12 determines that the security level of the clipboard data is 1 according to the correspondence shown in Table 2 above.

After determining the security level corresponding to the clipboard data, the processing device 12 executes step 302 .

Specifically, the processing device 12 determines the corresponding encryption algorithm for encrypting the clipboard data according to the security level corresponding to the clipboard data.

In order to meet the encryption requirements of clipboard data with a high security level, the higher the security level of the data, the higher the encryption strength of the encryption algorithm corresponding to the data. Generally speaking, the lower the encryption strength of the encryption algorithm, the less computational overhead involved in the encryption process corresponding to the encryption algorithm. In order to relatively save the computational overhead of the processing device 12, data with a low security level can use an algorithm with low encryption strength.

For example, the relationship between different security levels and different encryption algorithms is shown in Table 3 below.

table 3

Security Level Encryption Algorithm 1 Base64 encryption algorithm 2 MD5 encryption algorithm 3 SHA256 encryption algorithm

When it is determined that the security level corresponding to the clipboard data is 1, the encryption algorithm corresponding to the clipboard data adopts the Base64 encryption algorithm.

In the embodiment of the present application, the processing device 12 encrypts data with different security levels using different encryption algorithms. On the one hand, it can ensure that all data containing preset vocabulary is encrypted, and on the other hand, it can reclassify data containing vocabulary , in the case of meeting the encryption requirements of data with different security levels, try to reduce the computational overhead of encrypting clipboard data.

After the processing device 12 determines the encryption algorithm used to encrypt the clipboard data, step 303 is executed.

Specifically, after determining the corresponding encryption algorithm, the processing device 12 encrypts the clipboard data according to the encryption algorithm. Since the clipboard data is encrypted, the data is prevented from being arbitrarily monitored and obtained by criminals, resulting in clipping data. board data breaches.

Use the corresponding encryption algorithm to encrypt the clipboard data. After criminals obtain the encryption algorithm used to encrypt the holiday supplementary data, it is still possible to crack the corresponding clipboard data and then tamper with the clipboard data. , so in order to reduce the situation that the clipboard data is tampered with, the following provides a way to encrypt the clipboard data.

Method 2:

The data is encrypted according to the first encryption algorithm to obtain a ciphertext string; the ciphertext string and clipboard data are encapsulated to obtain encrypted data.

Specifically, the first encryption algorithm may be the algorithm determined by the method in step 302, or it may be a fixed algorithm preset in the processing device 12, and the clipboard data is encrypted according to the first encryption algorithm. After that, the encrypted ciphertext string is obtained. After the ciphertext string is obtained, the ciphertext string and the clipboard data can be encapsulated together to obtain encrypted data, for example, the ciphertext string is used as the data header, and the data header and the data are encapsulated together. Encapsulation can be understood as combining clipboard data and ciphertext strings in a preset data format.

In the encryption method of the second method, when the clipboard data and the ciphertext string are encapsulated together, it is convenient for the processing device 12 to later verify whether the data has been tampered with.

Method 3:

Please refer to FIG. 4 , the method includes step 401, encrypting the clipboard data according to the first encryption algorithm to obtain a ciphertext string;

Step 402, pre-encrypt the clipboard data according to the second encryption algorithm, and obtain the pre-encrypted data;

Step 403, obfuscating the pre-encrypted data to obtain the obfuscated data;

Step 404, encapsulating the ciphertext string and the obfuscated data to obtain encrypted data.

Specifically, for the first encryption algorithm in step 401, reference may be made to the content of the first encryption algorithm discussed in Mode 2, which will not be repeated here. After obtaining the ciphertext string, in order to further improve the encryption strength of the data, the clipboard data is also encrypted in the embodiment of the present application, and the processing device 12 pre-encrypts the clipboard data according to the second encryption algorithm to obtain the pre-encryption after the data. Wherein, the second encryption algorithm may be the same as or different from the first encryption algorithm.

After obtaining the pre-encrypted data, in order to increase data security, the processing device performs obfuscation processing on the pre-encrypted data, for example, performs interpolation obfuscation processing on the pre-encrypted data to obtain obfuscated data.

As an embodiment, in order to facilitate the processing device 12 to decrypt later, the processing device 12 may perform interpolation processing at a fixed position in the pre-encrypted data.

After obtaining the obfuscated data, the processing device may use the ciphertext string as a data header, encapsulate the obfuscated data, and obtain encrypted data. The encapsulation can refer to the content discussed above, and will not be repeated here.

In the third encryption method, the processing device 12 encrypts and obfuscates the data to increase the encryption strength and ensure the security of the clipboard data to the greatest extent.

For example, the first encryption algorithm is the MD5 encryption algorithm. After the processing device 12 encrypts the clipboard data "the address is XXXXXXXXXXXXXXXXXXXXXXXXXX", the ciphertext string "2ce1ae2a4388f14b7f4c998de2e6e5b6" can be obtained.

The second encryption algorithm uses base64 for pre-encryption to obtain the pre-encrypted data "5Zyw5Z2A5Li6WFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFg=", insert "5" directly into the first and second digits of the pre-encrypted data, and obtain the obfuscated data as follows:

55Zyw5Z2A5Li6WFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFg=.

After obtaining the obfuscated data, the ciphertext string and the obfuscated data are encapsulated together to obtain the encrypted data as follows:

"2ce1ae2a4388f14b7f4c998de2e6e5b6+55Zyw5Z2A5Li6WFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFg=".

As an embodiment, the encryption methods of method 1 and method 2 can be combined, and the encryption methods of method 1 and method 3 can also be combined, that is, the first encryption algorithm in method 2 and method 3 can be determined through method 1.

After obtaining the encrypted data, the processing device 12 executes step 205 , that is, sends the encrypted data to the clipboard 13 . Since the processing device 12 encrypts the clipboard data, it is difficult for lawbreakers to decipher the encrypted data, ensuring the security of the clipboard data.

Specifically, the processing device 12 discussed above may be implemented through a service. Therefore, the processing device 12 will not store encrypted data, but send the encrypted data to the clipboard 13 .

The processing device 12 executes step 206 , that is, when an operation of obtaining data from the clipboard 13 is detected, obtain encrypted data from the clipboard 13 .

Among them, the operation of obtaining data from the clipboard 13, for example, the user performs a paste operation, and there are many ways to obtain data from the clipboard 13. You can refer to the way the user performs the copy operation discussed above, which will not be repeated here. repeat.

After acquiring the encrypted data, the processing device 12 executes step 207, that is, decrypts the encrypted data.

Specifically, the processing device 12 decrypts the encrypted data according to the reverse process, and decrypts to obtain the corresponding data. The decryption process corresponding to the encryption process will be described as an example below.

Decryption process one:

Referring to FIG. 5 , the decryption process includes: step 501 , according to the first encryption algorithm, decrypting the data header in the encrypted data.

Specifically, the processing device 12 encrypts the data according to the encryption method of the second method above, and the processing device 12 decrypts the ciphertext string according to the first encryption algorithm used in the previous encryption, and obtains the decrypted clip after decryption. The content of the sliced data. The processing device 12 executes step 502, that is, judges whether the decrypted clipboard data matches the data in the encrypted data, and if they match, executes step 503, that is, sends the decrypted clipboard data to the corresponding application or clipboard. Cutting board. If the decrypted clipboard data is sent to the clipboard 13 , the corresponding application obtains the required clipboard data from the clipboard 13 . If not, execute step 504, that is, prompt the user that the clipboard data has been tampered with.

Among them, matching can be understood as the data in the encrypted data has the same data as the decrypted data header, and matching can be further understood as data verification, using the decrypted clipboard data to encrypt the encrypted data. The data in is verified.

Specifically, as discussed in the second method above, since the ciphertext string in the encrypted data is obtained by encrypting the data itself, the encrypted data also includes unencrypted clipboard data. If the decrypted clipboard data is the same as the data in the encrypted data, it means that the clipboard data has not been tampered with, and the processing device 12 sends the clipboard data to the corresponding application. The application corresponding to the operation of obtaining data in the clipboard, for example, if the user needs to copy the clipboard data to application A, then application A is the corresponding application. If the decrypted clipboard data is different from the encrypted data, it means that the clipboard data has been tampered with, and the user will be prompted that the clipboard data has been tampered with. There are many ways to prompt, for example A floating window pops up for prompts, etc.

As an example, when the processing device 12 determines that the decrypted clipboard data is different from the encrypted data, the processing device 12 may delete the clipboard data to prevent criminals from implanting viruses.

Decryption process two:

If the encryption method adopts the above-mentioned method three to encrypt, after the processing device 12 obtains the decrypted clipboard data through the method of step 501 discussed above, it also needs to encrypt the encrypted data except for the ciphertext string. After the processing, the decryption process is performed according to the second encryption algorithm to obtain the clipboard data, and then it is judged whether the encrypted and decrypted clipboard data matches the clipboard data. If the decrypted clipboard data matches the clipboard data, step 503 is executed to send the clipboard data to the corresponding application. If the decrypted clipboard data does not match the clipboard data, step 504 is executed, that is, the user is prompted that the clipboard data has been tampered with.

In a possible embodiment, the terminal device may support multiple clipboards 13 at the same time, and the processing device 12 may also perform the above encryption and decryption process on the clipboard data in the multiple clipboards 13 at the same time.

Specifically, the processor device 12 may include a plurality of independent processes, and each process is responsible for communicating with a clipboard 13, and decrypting and encrypting the clipboard data corresponding to the clipboard, so as to realize simultaneous processing of multiple clipboards. Cutting plate 13 data for processing.

Based on the same inventive concept, the embodiment of the present application also provides a processing device for shearing plate data, which is equivalent to the processing device 12 discussed above. Please refer to FIG. 6 , the processing device 12 includes:

An acquisition module 601, configured to acquire clipboard data when it is detected that a cut operation or a copy operation is performed on the data;

A judging module 602, configured to judge whether the clipboard data contains at least one vocabulary in the preset vocabulary set;

Encryption module 603, if the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypt the clipboard data;

The sending module 604 is configured to send the encrypted data to the clipboard.

In a possible embodiment, the encryption module 603 is specifically configured to:

If the clipboard data contains at least one vocabulary in the preset vocabulary set, then determine the security level of the clipboard data;

Determine the encryption algorithm used to encrypt the clipboard data according to the security level of the clipboard data;

Encrypt the clipboard data according to the encryption algorithm used to encrypt the clipboard data.

In a possible embodiment, the encryption module 603 is specifically configured to:

determining the security level of each vocabulary in the at least one vocabulary, the security level of the highest security level belonging to the at least one vocabulary is the security level of the clipboard data; or,

According to the application corresponding to the data and the corresponding relationship, determine the security level corresponding to the clipboard data; among them, the application corresponding to the clipboard data refers to the application from which the clipboard data comes from, and the corresponding relationship is between different applications and different security levels. Correspondence between.

In a possible embodiment, the encryption module 603 is specifically configured to:

Encrypt the clipboard data according to the first encryption algorithm to obtain a ciphertext string;

Encapsulate the ciphertext string and clipboard data to obtain encrypted data.

In a possible embodiment, the processing device further includes a decryption module 605 and a prompt module 606, wherein:

The obtaining module 601 is further configured to obtain the encrypted data from the clipboard 13 when an operation of obtaining the clipboard data from the clipboard 13 is detected after the encrypted data is sent to the clipboard 13. data;

Decryption module 605, configured to decrypt the ciphertext string in the encrypted data according to the first encryption algorithm, and obtain the decrypted data;

The sending module 604 is also configured to send the decrypted data to the clipboard according to the operation of obtaining the clipboard data from the clipboard 13 if the decrypted data matches the data in the encrypted data. Cutting board 13 or corresponding application;

The prompting module 606 is configured to prompt the user that the clipboard data has been tampered with if the decrypted data does not match the encrypted data.

In a possible embodiment, the encryption module 603 is specifically configured to:

Pre-encrypt the clipboard data according to the second encryption algorithm to obtain pre-encrypted data;

Obfuscate the pre-encrypted data to obtain the obfuscated data;

Encapsulate the encrypted and obfuscated data to obtain encrypted data.

Based on the same inventive concept, the embodiment of the present application also provides a processing device for shearing plate data, which is equivalent to the processing device 12 discussed above, please refer to FIG. 7 , the device includes:

at least one processor 701, and

a memory 702 communicatively connected to at least one processor 701;

The memory 702 stores instructions executable by at least one processor 701, and at least one processor 701 implements the clipboard data processing method discussed above by executing the instructions stored in the memory 702.

One processor 701 is taken as an example in FIG. 7 , but the number of processors 701 is not limited actually.

As an example, the processor 701 in FIG. 7 can implement the functions of the acquiring module 601, judging module 602, encrypting module 603, sending module 604, decrypting module 605 and prompting module 606 in FIG. 6 above.

Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and when the computer instructions are run on the computer, the computer executes the above-mentioned clipping method. The processing method of cutting board data.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (14)

1. A processing method for clipboard data, characterized in that, comprising: Obtain clipboard data when a cut or copy operation is detected on the data; judging whether the clipboard data contains at least one vocabulary in the preset vocabulary set; If the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypt the clipboard data; Send the encrypted data to the clipboard. 2. The method according to claim 1, wherein if the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypting the data includes: If the clipboard data contains at least one vocabulary in the preset vocabulary set, then determine the security level of the clipboard data; Determine an encryption algorithm for encrypting the clipboard data according to the security level of the clipboard data; Perform encryption processing on the clipboard data according to the encryption algorithm used to encrypt the clipboard data. 3. The method according to claim 2, wherein determining the security level of the clipboard data comprises: determining the security level of each vocabulary in the at least one vocabulary, and the security level with the highest security level in the at least one vocabulary is the security level of the clipboard data; or, According to the application corresponding to the clipboard data and the corresponding relationship, determine the security level corresponding to the clipboard data; wherein, the application corresponding to the clipboard data means that the clipboard data comes from the The above-mentioned application, the correspondence is the correspondence between different applications and different security levels. 4. The method according to any one of claims 1-3, wherein if at least one vocabulary in the preset vocabulary set is included in the clipboard data, then the clipboard data is Encryption processing, including: Encrypt the clipboard data according to a first encryption algorithm to obtain a ciphertext string; Encapsulating the ciphertext string and the clipboard data to obtain encrypted data. 5. The method according to claim 4, characterized in that, after the encrypted data is sent to the clipboard, comprising: When an operation of obtaining the clipboard data from the clipboard is detected, obtain the encrypted data from the clipboard; According to the first encryption algorithm, decrypt the ciphertext character string in the encrypted data to obtain the decrypted data; If the data after the decryption process matches the data in the data after the encryption process, then according to the operation of obtaining the clipboard data from the clipboard, send the data after the decryption process to the clipboard or corresponding application; If the decrypted data does not match the encrypted data, the user is prompted that the clipboard data has been tampered with. 6. The method according to claim 4, characterized in that, encapsulating the ciphertext string and the clipboard data to obtain encrypted data includes: Pre-encrypting the clipboard data according to a second encryption algorithm to obtain pre-encrypted data; Obfuscating the pre-encrypted data to obtain the obfuscated data; Encapsulating the ciphertext string and the obfuscated data to obtain encrypted data. 7. A processing device for shear plate data, characterized in that, comprising: An acquisition module, configured to acquire clipboard data when a cut or copy operation is detected on the data; A judging module, configured to judge whether the clipboard data contains at least one vocabulary in the preset vocabulary set; An encryption module, if the clipboard data contains at least one vocabulary in the preset vocabulary set, then encrypt the clipboard data; The sending module is used to send the encrypted data to the clipboard. 8. The processing device according to claim 7, wherein the encryption module is specifically used for: If the clipboard data contains at least one vocabulary in the preset vocabulary set, then determine the security level of the clipboard data; Determine an encryption algorithm for encrypting the clipboard data according to the security level of the clipboard data; Perform encryption processing on the clipboard data according to the encryption algorithm used to encrypt the clipboard data. 9. The processing device according to claim 8, wherein the encryption module is specifically used for: determining the security level of each vocabulary in the at least one vocabulary, and the security level with the highest security level in the at least one vocabulary is the security level of the clipboard data; or, According to the application corresponding to the clipboard data and the corresponding relationship, determine the security level corresponding to the clipboard data; wherein, the application corresponding to the clipboard data means that the clipboard data comes from the The above-mentioned application, the correspondence is the correspondence between different applications and different security levels. 10. The processing device according to any one of claims 7-9, wherein the encryption module is specifically used for: Encrypt the clipboard data according to a first encryption algorithm to obtain a ciphertext string; Encapsulating the ciphertext string and the clipboard data to obtain encrypted data. 11. The processing device according to claim 10, further comprising a decryption module and a prompt module, wherein: The obtaining module is further configured to obtain the data from the clipboard when an operation of obtaining the clipboard data from the clipboard is detected after the encrypted data is sent to the clipboard. encrypted data; The decryption module, according to the first encryption algorithm, decrypts the ciphertext string in the encrypted data to obtain the decrypted data; The sending module is further configured to, if the decrypted data matches the data in the encrypted data, according to the operation of obtaining the clipboard data from the clipboard, send The decrypted data is sent to the clipboard or a corresponding application; The prompting module is configured to prompt the user that the clipboard data has been tampered with if the decrypted data does not match the encrypted data. 12. The processing device according to claim 10, wherein the encryption module is specifically used for: Pre-encrypting the clipboard data according to a second encryption algorithm to obtain pre-encrypted data; Obfuscating the pre-encrypted data to obtain the obfuscated data; Encapsulating the ciphertext string and the obfuscated data to obtain encrypted data. 13. A processing device for shear plate data, comprising: at least one processor, and memory communicatively coupled to the at least one processor; Wherein, the memory stores instructions executable by the at least one processor, and the at least one processor implements the method according to any one of claims 1-6 by executing the instructions stored in the memory. 14. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, and when the computer instructions are run on a computer, the computer executes any one of claims 1-6. the method described.