Text encryption system

Abstract

The invention discloses a text encryption system which mainly comprises a first identity verification module, a second identity verification module, a text information decryption module, a sensitive word automatic screening module, a text information encryption module and a manual encryption removal module. The system utilizes the first identity verification module to realize primary encryption on an encrypted text, a sensitive word stock is arranged in the system, after entering the system, newly creating text information input, sensitive words are automatically screened for the text information, and whether the text is encrypted or not is automatically selected according to the screened content; and when the existing text is modified, the second identity verification module is started, sensitive words are automatically screened from the modified text information, and whether the modified text is encrypted again or not is automatically selected. According to the encryption system, the security of the text is enhanced, and the security problem caused by leakage of text information in a user computer is prevented.

Description

Technical Field

[0001] This invention relates to the field of information security technology, specifically to a text encryption system. Background Technology

[0002] With the increasingly widespread use of computers, the emergence of various office software has greatly facilitated people's learning and work. Nowadays, most data is stored on computers in the form of documents. Users store a large amount of information in text files, which may contain content closely related to their personal interests. If this information falls into the wrong hands, it could endanger the user's interests and personal safety. However, current computer information storage solutions simply store this sensitive information without encrypting it unless the user actively encrypts it. This makes it very easy for other users to obtain this sensitive information after using the computer, thus posing a threat to the user. Summary of the Invention

[0003] The purpose of this invention is to provide a text encryption system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a text encryption system, comprising: a first authentication module, a second authentication module, a text information decryption module, a sensitive word automatic filtering module, a text information encryption module, and a manual decryption module;

[0005] The system uses the first authentication module to perform initial encryption of the encrypted text. The system also has a sensitive word library. After entering new text information into the system, the system automatically filters the text information for sensitive words and automatically selects whether to encrypt the text based on the filtered content. When modifying existing text, the second authentication module is activated, and the system automatically filters the modified text information for sensitive words and automatically selects whether to re-encrypt the modified text.

[0006] Furthermore, before using the encryption system, a first authentication password is set. After setting the password, the first authentication password is used to enter the encryption system. When using the encryption system for the first time, a text encryption password and a second authentication password are set. The text encryption password is used to view encrypted text, and the second authentication password is used to modify existing text after viewing it.

[0007] Furthermore, the first authentication password, the second authentication password, and the text encryption password can be the same or different, depending on the user's needs.

[0008] Furthermore, the sensitive word information in the sensitive word library can be set by the user as needed, and the user can change the information in the sensitive word library at any time. There is no limit to the number of sensitive words in the sensitive word library.

[0009] Furthermore, when entering new text information, the system activates the automatic sensitive word filtering module, compares and filters the entered information with the sensitive words in the sensitive word library, and if the text information contains sensitive words, the system automatically marks the file as a sensitive file and automatically activates the text information encryption module to set the text as encrypted text.

[0010] Furthermore, for text containing sensitive words that the user does not wish to encrypt, after storing the text, the user can open the manual decryption module in the system, enter the text encryption password, and manually decrypt the encrypted text.

[0011] Furthermore, when a user views existing text information, they can enter the encrypted password in the pop-up password input window to decrypt and view the text.

[0012] Furthermore, when a user needs to modify existing text information, after opening and viewing the text, they can click "Modify." The system will then activate the second authentication module, and a second authentication password window will pop up. After entering the second authentication password in the window, the user can modify the text.

[0013] Furthermore, when the text is modified, the system activates the automatic sensitive word filtering module to check whether the modified content contains sensitive words.

[0014] Furthermore, if the modified text does not contain sensitive words, the system automatically removes the encryption settings for the text; if the modified text contains sensitive words, the system retains the encryption settings for the text.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention detects the text content of the document, and if the text content contains preset sensitive words, it automatically encrypts the document for the user; the user does not need to judge whether the document needs to be encrypted, which provides convenience for the user; when modifying the encrypted text, the use of a second authentication module enhances the security of the document and prevents the leakage of text information on the user's computer, thus preventing security problems. Attached Figure Description

[0016] To make the invention easier to understand, the invention briefly described above will be described in more detail with reference to the specific implementation process shown in the accompanying drawings. It should be understood that these drawings depict only typical embodiments of the invention and should not be considered as limiting its scope of protection. The invention is described and explained with reference to the accompanying drawings to additional features and details.

[0017] Figure 1 This is a flowchart of a text encryption system. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments.

[0019] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0020] This invention provides a text encryption system. The system mainly includes: a first authentication module, a second authentication module, a text information decryption module, an automatic sensitive word filtering module, a text information encryption module, and a manual decryption module.

[0021] This encryption system uses a first authentication module to initially encrypt the text. It also includes a sensitive word library; after new text is entered, the system automatically filters for sensitive words and determines whether to encrypt the text based on the filtered information. When modifying existing text, the system requires a second authentication and automatically filters for sensitive words in the modified text, determining whether to re-encrypt the text.

[0022] Specifically, please refer to Figure 1 As shown, Figure 1 This is a flowchart of a text encryption system.

[0023] In this embodiment of the invention, before using the text encryption system, a first authentication password must be set. After setting the password, the user enters the text encryption system using the first authentication module. Upon first use of the system, a text encryption password and a second authentication password are set. The text encryption password is used when viewing the encrypted text, while the second authentication password is used when modifying existing text. This is essentially a secondary encryption of the text, effectively preventing unauthorized modification of the encrypted text and ensuring its encryption security. The first authentication password, the second authentication password, and the decryption password can be the same or different, depending on the user's needs.

[0024] Specifically, after entering the primary identity verification password to access the text encryption system, users can enter the operating system, create new text messages, and view and modify existing encrypted text messages.

[0025] When creating new text information, users directly open the text system for information entry. The system automatically selects from a sensitive word library, which is set by the user and can be changed at any time. The number of sensitive words in the library is unlimited, ranging from one to several. During text entry, the system automatically activates a sensitive word filtering module, comparing the entered information with the sensitive words in the library. If sensitive words are found, the system automatically marks the file as sensitive and automatically activates the text encryption module, encrypting the text. This ensures that even if unexpected external factors occur during text entry, such as a power outage or accidental system shutdown, the encryption process remains unaffected. After text entry is complete, clicking "Save" automatically encrypts and saves the text. If the user does not wish to encrypt text containing sensitive words, they can manually deencrypt the text after saving by entering a pre-set password. If no sensitive words are found in the entered text, the system will not activate the text encryption module for that text, and the text will be stored directly after the text information is entered.

[0026] After entering the first authentication module, when a user views existing text information, they can enter a pre-set password in the pop-up password input window. At this time, the user can only view the text and cannot modify it. When the user needs to modify the existing text information, they need to open and view it, then click "Modify." The system then activates the second authentication module, which pops up a second authentication password window. After entering the second authentication password, the user can modify the text. During text modification, the system activates an automatic sensitive word filtering module to check if the modified content contains sensitive words. If the modified text does not contain sensitive words, the system automatically removes the encryption settings. If the modified text contains sensitive words, the system retains the encryption settings.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A text encryption system, characterized in that, include: The system includes a first authentication module, a second authentication module, a text information decryption module, an automatic sensitive word filtering module, a text information encryption module, and a manual decryption module. The system uses the first authentication module to perform initial encryption of the encrypted text. The system also has a sensitive word library. After entering new text information into the system, the system automatically filters the text information for sensitive words and automatically selects whether to encrypt the text based on the filtered content. When modifying existing text, the second authentication module is activated, and the system automatically filters the modified text information for sensitive words and automatically selects whether to re-encrypt the modified text.

2. The text encryption system according to claim 1, characterized in that, Before using the encryption system, first set a primary authentication password. After setting the password, use the primary authentication password to enter the encryption system. When using the encryption system for the first time, first set a text encryption password and a secondary authentication password. The text encryption password is used to view encrypted text, and the secondary authentication password is used to modify existing text after viewing it.

3. A text encryption system according to claim 2, characterized in that, The first authentication password, the second authentication password, and the text encryption password can be set to the same password or different passwords, which can be set by the user as needed.

4. A text encryption system according to claim 1, characterized in that, The sensitive word information in the sensitive word library is set by the user as needed, and the user can change the information in the sensitive word library at any time. There is no limit to the number of sensitive words in the sensitive word library.

5. A text encryption system according to claim 1, characterized in that, When new text information is entered, the system activates the automatic sensitive word filtering module, compares and filters the entered information with the sensitive words in the sensitive word library, and if the text information contains sensitive words, the system automatically marks the file as a sensitive file and automatically activates the text information encryption module to set the text as encrypted text.

6. A text encryption system according to claim 1, characterized in that, If a user does not want to encrypt text containing sensitive words, after saving the text, the user can open the manual decryption module in the system, enter the text encryption password, and manually decrypt the encrypted text.

7. A text encryption system according to claim 1, characterized in that, When a user views existing text information, they can enter the encrypted password in the pop-up password input window to decrypt and view the text.

8. A text encryption system according to claim 1, characterized in that, When a user needs to modify existing text information, after opening and viewing the text, they can click "Modify." The system will then activate the second authentication module, which will pop up a second authentication password window. After entering the second authentication password in the window, the user can modify the text.

9. A text encryption system according to claim 8, characterized in that, When text is modified, the system activates the automatic sensitive word filtering module to check whether the modified content contains sensitive words.

10. A text encryption system according to claim 9, characterized in that, If the modified text does not contain sensitive words, the system automatically removes the encryption settings for the text; if the modified text contains sensitive words, the system retains the encryption settings for the text.

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