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I’m making a program in which you select the file you want to lock using a password by clicking on a button that file is locked with a user-defined password. How can I make this file only be accessed with the password?
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I believe you can use a library like the Pycrypto to encrypt and decrypt your file with a password.
Take a look in this topic and in this also.
Create a function to proteger() and one for desproteger(), which receives both the file path and the access password.
proteger('arq.txt', 'senha_dificil123')proteger('arq.txt', 'senha_dificil123')
Just take a look at documentation to understand how to perform these procedures.
Another alternative would be to create a function to compress the file and put a password to unzip the file as shown in this topic.
To create an encrypted file 'meu_arquivo.zip' using the open-source solution 7-Zip:
x = subprocess.call(['7z', 'a', '-pP4$$W0rd', '-y', 'meu_arquivo.zip'] +
['arquivo1.txt', 'arquivo2.txt'])
To install the 7-Zip:
In the Linux, to install type in the terminal:
$ sudo apt-get install p7zip-full
To manually unzip the created file, type: $ unzip meu_arquivo.zip and type 'P4$$W0rd' at the prompt that appears asking for the password.
Already in the Windows just rotate the installer .exe.
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