Hello, after upgrading OpenSSL to 1.1.1g on an armv5 based embedded target I had a deeper look into entropy generation for that device and stumbled over the in kernel 'jitterentropy_rng' module. As far as I understood it's supposed to do the same as the well known 'haveged' or the userspace daemon 'jitterentropy-rngd' by Stephan Müller [1], right? (Although those daemons would solve my problem, I currently try to avoid them, because memory on my platform is very restricted and every additional running userspace process costs at least around 1 MB.) If so, then how is it supposed to be set up? I built it for 4.9.x LTS, but after loading it with 'modprobe' I see nothing in the kernel log and there's no significant change in /proc/sys/kernel/random/entropy_avail (stays well below 100 most of the time). Isn't that module supposed to gather entropy from cpu timing jitter? Puzzled Alex [1] https://www.chronox.de/jent.html
