How to encrypt and decrypt files with GPG

In this article, I'll explain how to use GPG (GNU Privacy Guard) for file encryption and decryption. GPG is an excellent tool for securing your sensitive data, and it's widely used in various applications. Let's dive into the process!

To encrypt a file using GPG, you can follow these steps:

  • Step 1: Open your terminal or command prompt.
  • Step 2: Type the following command and replace clear_text with the name of the file you want to encrypt:
$ gpg -c clear_text

The -c flag instructs GPG to use symmetric encryption with a password. This means the same password will be used for both encryption and decryption. After running this command, GPG will compress the input file and create an encrypted version named clear_text.gpg.

Next, let's see how to decrypt the encrypted file:

  • Step 1: Open your terminal or command prompt.
  • Step 2: Type the following command and replace clear_text.gpg with the name of the encrypted file:
$ gpg -d clear_text.gpg

The -d flag tells GPG that you want to decrypt the file. GPG will then prompt you to enter the password used during encryption. Once you provide the correct password, GPG will decrypt the file and decompress it, giving you back the original clear_text file.

One of the key advantages of using GPG is that it utilizes the standard OpenPGP format. This means any encryption software that supports OpenPGP can successfully decrypt the file. This interoperability makes GPG an ideal choice for secure communication and file exchange.

In conclusion, using GPG to encrypt and decrypt files is a simple yet powerful way to protect sensitive information. By following the provided commands and understanding how GPG works, you can ensure your data remains safe and secure from prying eyes on the internet.

2023-06-20 18:30:31 | NOTE | 0 Comments
 

 

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