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Linux/20250516161728-gpg_encryption.org

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+:PROPERTIES:
+:ID:       30c28e5e-0b1c-43ae-b3bd-eb31023f8b73
+:END:
+#+title: gpg-encryption
+#+filetags: :linux:security:gpg:
+
+If you want to encrypt a file, use the following command:
+
+#+begin_src bash
+
+  gpg -c file.txt
+
+  # options include :
+  # gpg -c file.txt : for symmetric encryption
+  # gpg -d file.txt.gpg : to decrypt the file
+  # gpg --batch -c --passphrase mypassphrase file.txt : accepts passphrase right from command line  
+
+#+end_src
+
+and to decrypt, use:
+
+#+begin_src bash
+
+  gpg -d file.txt
+
+  # You have to wait 10 minutes before you can get prompted for a password, before this, it will
+  # decrypt without the passphrase.
+
+#+end_src
+
+gpg --batch -c --passphrase Shakkal123! passwords.md
+
+gpg --batch -d --passphrase Shakkal123! passwords.md.gpg
+
+gpg --batch --output passwords.md -d --passphrase Shakkal123! passwords.md.gpg