Post Syndicated from original https://lwn.net/Articles/889452/

In mid-February, we reported on the plan to
unite the two kernel devices that provide random numbers;
/dev/urandom was to effectively just be another way to access the
random numbers provided by /dev/random. That change made it as
far as the mainline during the Linux 5.18 merge window, but it was
quickly reverted when problems were found. It may be possible to
do that unification someday, but, for now, there are environments that need
their random numbers early on—without entropy or the “Linus jitter dance”
being available on the platform.