Secure password variables in memory

[Quentin Brosse]

https://grokbase.com/t/gg/golang-nuts/138ess1xtr/go-nuts-how-to-secure-variables-in-memory

You allocate some memory directly from OS, lock it in memory, and then
construct some Go objects in there using unsafe. Then that memory won't be
paged to swap file and GC won't touch it as well.