Folder encryption method and encrypted file use method
A technology for encrypting files and encryption methods, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve problems such as lack of flexibility, lack of cross-platform use, and loss of files.
Inactive Publication Date: 2015-06-24
NINGBO UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
When the number of files in a folder is large, even if a single file is small, operations such as storing and backing up the folder will consume a lot of computing time. question
[0003] There are many ways to directly encrypt the data files under the folder, such as compressed file encryption method, such as using tools such as Winzip or Winrar to compress and set a password, which can play a role in keeping the folder confidential. The compressed folder must be decompressed before it can be used, which lacks certain flexibility. At the same time, once the folder is decompressed, the effect of encrypting and saving the file will be lost
Encrypting some folders can also be achieved by using some functions that come with the Windows system, but this method does not have the effect of cross-platform use
We must take into account that in the era of big data, PCs are no longer a single computing unit, and massive data may need to be shared on computers, mobile phones or other portable devices, which also poses certain challenges to the security of data files
There are already some applications of using the database method for file storage and protection. However, some databases such as SQL-Server do not have cross-platform capabilities. At the same time, in the process of using database file storage, the system must additionally install the corresponding database management system. , otherwise the protected files cannot be extracted and used
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0039] The invention provides a folder encryption method, which includes the following steps
[0040] Step 1. The user sets encryption options, specifically including:
[0041] Step 1a), specify the folder name and encryption password to be encrypted by the user;
[0042] Step 1b), the user specifies the file type to be encrypted under the folder to be encrypted, and the file type includes text, binary and mixed types;
[0043] Step 1c), the encryption level is determined by the user, and the encryption level includes a general confidentiality level and a high confidentiality level;
[0044] Step 1d), the user specifies the database name or utilizes "folder name.fiu" as the default database name;
[0045] Step 2, the encrypted database is generated, specifically including:
[0046] Step 2a), pre-set the first salt value db_salt, and then p...
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The invention relates to a folder encryption method and an encrypted file use method. The folder encryption method comprises the steps that 1, a user sets encryption options; 2, an encryption database is generated; 3, files in a folder are guided in. Compared with the prior art, the folder encryption method and the encrypted file use method have the advantages that the folder encryption method is used for encrypting the folder, and the encrypted folder can be used in a cross-platform mode.
Description
technical field [0001] The invention relates to a method for encrypting folders and a method for using encrypted files. Background technique [0002] In the face of a large amount of data, how to encrypt folders, so that data files can be safely stored, and at the same time can be used conveniently, so as to meet the needs of massive data processing in the data era. When the number of files in a folder is large, even if a single file is small, operations such as storing and backing up the folder will consume a lot of computing time. question. [0003] There are many ways to directly encrypt the data files under the folder, such as compressed file encryption method, such as using tools such as Winzip or Winrar to compress and set a password, which can play a role in keeping the folder confidential. The compressed folder must be decompressed before it can be used during use, which lacks certain flexibility. At the same time, once the folder is decompressed, the effect of enc...
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IPC IPC(8): G06F21/62G06F17/30
Inventor 林勇曾燕香滕宇杨芳荆广珠
Owner NINGBO UNIVERSITY OF TECHNOLOGY