Also mlock to prevent the memory page being written to disk and make sure to properly overwrite the secret data once you no longer need it. Make sure this doesn

Also mlock to prevent the memory page being written to disk and make sure to properly overwrite the secret data once you no longer need it. Make sure this doesn't get optimized away. libsodium has functions for all of that. Rust has the "secrets" crate that is a wrapper around these. I don't know much Go, but a quick search looks like it has libraries that take care of these things as well - unsurprisingly.