Skip to Content [alt-c]


In reply to Comment by Reader Nix

Andrew Ayer on 2014-07-16 at 01:23:

I had a feeling it was mlock(), but I couldn't think of a good way to check if a page is locked. OpenBSD provides a really nifty way to detect forks: you can use the minherit() syscall with the INHERIT_ZERO argument to specify that a page should be replaced with zeros when forking. This experience has been a real eye opener to how an operating system can make it easier to write a secure crypto library.


Post a Reply

Your comment will be public. To contact me privately, email me. Please keep your comment polite, on-topic, and comprehensible. Your comment may be held for moderation before being published.

(Optional; will be published)

(Optional; will not be published)

(Optional; will be published)

  • Blank lines separate paragraphs.
  • Lines starting with > are indented as block quotes.
  • Lines starting with two spaces are reproduced verbatim (good for code).
  • Text surrounded by *asterisks* is italicized.
  • Text surrounded by `back ticks` is monospaced.
  • URLs are turned into links.
  • Use the Preview button to check your formatting.