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How to use GPG to encrypt and decrypt messages
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GPG_made_easy.md

How to use GPG to encrypt and decrypt messages

Importing Someone Else’s Public Key

$ gpg --import someone-else.pub_key

Encrypting File

$ gpg --encrypt --sign --armor --recipient someone-else@mail.com clear_message.txt

--sign: sign the file with your details
--armor: create an ASCII output
--recipient: email address (or ID) of the person you’re sending the message to

(Optional) Use a specific public key of yours

$ gpg --encrypt --sign --armor --local-user "my@email.com" --recipient someone-else@email.com clear_message.txt

--local-user: specify user ID (or) user fingerprint to sign the message. If this option is not used, the default key will be used.

Decrypting File

$ gpg --decrypt encrypted_message.txt

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