For a general-purpose key pair, choose DSA/ElGamal (option #1). This actually gives you two sets of keys: a DSA key pair that will be used by gpg for signing/verifying and an ElGamal pair that gpg ...
Installing the GPG Suite on a Macbook Pro with High Sierra. How to install and use GPG Suite to encrypt email with Apple Mail Your email has been sent In today’s world, security and privacy are key.