Chiffrer des fichiers avec GPG

Here are two bash functions to crypt/decrypt files with GPG.

Folder are compressed in a ZIP file before being encrypted.

Crypting leaves original files untouched. So does decrypting.

These functions have their place in your .bashrc or equivalent.

To crypt: gpgcrypt FICHIER

To decrypt: gpgdecrypt FICHIER

gpgcrypt() {
    if [[ -z "$1" ]]; then
        echo "You must supply an argument"
        return 1
    elif [[ -d "$1" ]]; then
        zip -r "$1.zip" "$1"
        gpg --output "$1.zip.gpg" --symmetric "$1.zip"
    else
        gpg --output "$1.gpg" --symmetric "$1"
    fi
}

gpgdecrypt() {
    if [[ -z "$1" ]]; then
        echo "You must supply an argument"
        return 1
    else
        gpg --output "${1%.*}" --decrypt "$1"
        if [[ "$(file --mime-type --brief "${1%.*}")" == 'application/zip' ]]; then
            unzip "${1%.*}"
        fi
    fi
}