Good points. I was about to say something about how libsodium will take care of most of that for you. For example, I thought they provided some facility for a

Good points. I was about to say something about how libsodium will take care of most of that for you. For example, I thought they provided some facility for avoiding nonce reuse vulnerabilities by automatically generating pseudorandom nonces for the user. But then I double checked their API docs and they don't do this at all! Argh!