GPG keypair generation with ed25519/cv25519

bash.sh

(
    echo "" && \
    read -r -s -p 'Passphrase to set for private key: ' PASSPHRASE && \
    echo "" && \
    read -r -s -p 'Please, repeat the passphrase: ' PASSPHRASE_REPEAT && \
    [ "${PASSPHRASE}" != "${PASSPHRASE_REPEAT}" ] && \
    echo -e "\nPassphrases don't match! Aborting...\n" || (
        echo -e "\n" && \
        read -r -p 'Name and e-mail (e.g. "Max Mustermann <[email protected]>"): ' CONTACT && \
        echo "" && \
        read -r -p 'How many years do you want the subkeys to be valid?
You can always extend the validity or create new subkeys later on! ' YEARS && \
        MY_GPG_HOMEDIR="$( umask 0077 && mktemp -d )" && \
        echo "${PASSPHRASE}" | gpg --homedir "${MY_GPG_HOMEDIR}" --batch --pinentry-mode loopback --quiet --passphrase-fd 0 \
            --quick-generate-key "${CONTACT}" ed25519 cert 0 && \
        FINGERPRINT=$(gpg --homedir "${MY_GPG_HOMEDIR}" --list-options show-only-fpr-mbox --list-secret-keys 2>/dev/null | awk '{print $1}') && \
        echo "${PASSPHRASE}" | gpg --homedir "${MY_GPG_HOMEDIR}" --batch --pinentry-mode loopback --quiet --passphrase-fd 0 \
            --quick-add-key "${FINGERPRINT}" ed25519 sign "${YEARS}y" && \
        echo "${PASSPHRASE}" | gpg --homedir "${MY_GPG_HOMEDIR}" --batch --pinentry-mode loopback --quiet --passphrase-fd 0 \
            --quick-add-key "${FINGERPRINT}" cv25519 encrypt    "${YEARS}y" && \
        echo "${PASSPHRASE}" | gpg --homedir "${MY_GPG_HOMEDIR}" --batch --pinentry-mode loopback --quiet --passphrase-fd 0 \
            --quick-add-key "${FINGERPRINT}" ed25519 auth "${YEARS}y" && \
        echo -e '\nSuccess! You can find the GnuPG homedir containing your keypair at \e[0;1;97;104m'"${MY_GPG_HOMEDIR}"'\e[0m\nPlease, copy that directory somewhere safe!\n'
    )
)

ok, thx