What is an entropy pool used for?

Answer

landon
Vote Up (4)

It's basically a pool of random numbers that operates at the kernel level. There is a huge debate going on in among android developers about whether the Seeder apk has an effect or not. It seems that on newer quad-core devices there is little or no benefit noticed. On older, less powerful devices people seem to notice an improvement. Unfortunately, pretty much everything offered has been subjective.  I followed the thread over at xda for the 1st 150 pages, but I've slacked off today.

Google's developers says it doesn't do anything (except perhaps for 2.2 or older versions of Android), and that dev/random (entropy pool) is only used for cryptography operations.  Here is the thing though, when the entropy pool is monitored, it DOES decline over time, so SOMETHING is causing that to happen. Also, WPA2 uses dev/random, unless I am mistaken, so perhaps it would make a difference when using a WiFi connection but not 3G/4G. Or perhaps not.

Oh, to save passerby readers the time of going looking for Seeder - you can ONLY try it if you are rooted.

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