On Mon, 21 Mar 2022 10:42:07 +1300, Peter Reutemann quoted:
'The most significant outward-facing change is that /dev/random and /dev/urandom are now exactly the same thing'
This report <https://www.theregister.com/2022/03/21/new_linux_kernel_has_improved/> adds one little fact I didn’t know: that the idea for a /dev/random device originated on Linux, and was rapidly copied by just about all the major Unixes: The code is contained in a module called random.c, originally written by Ted T'so for kernel 1.3 in 1994. It implements a Unix-style special character device called /dev/random which gives a stream of pseudorandom data. Building this into the kernel was a big deal, and the /dev/random device was adopted into DEC/Compaq Tru64, FreeBSD, HP-UX, IBM AIX, NetBSD, macOS, SGI IRIX, and Sun Solaris. This might make it one of the single most widely influential new features from Linux onto the broader Unix world.