systemd's log subsystem has been doing exactly that since 2012: https://lwn.net/Articles/512895/ https://lwn.net/Articles/512895/ Although here's a detail i d

systemd's log subsystem has been doing exactly that since 2012: https://lwn.net/Articles/512895/ https://lwn.net/Articles/512895/ Although here's a detail i didn't know: The algorithm for FSS is based on "Forward Secure Pseudo Random Generators" (FSPRG), which comes from some post-doctoral research by Poettering's brother Bertram. So that's just peachy.