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authorPetr Štetiar <ynezz@true.cz>2019-05-20 14:02:20 +0200
committerPetr Štetiar <ynezz@true.cz>2019-06-11 08:06:28 +0200
commit714bd89fceee494282984d0ed76e4a3acde419e0 (patch)
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urng: add micro non-physical true RNG based on timing jitter
μrngd is OpenWrt's micro non-physical true random number generator based on timing jitter. Using the Jitter RNG core, the rngd provides an entropy source that feeds into the Linux /dev/random device if its entropy runs low. It updates the /dev/random entropy estimator such that the newly provided entropy unblocks /dev/random. The seeding of /dev/random also ensures that /dev/urandom benefits from entropy. Especially during boot time, when the entropy of Linux is low, the Jitter RNGd provides a source of sufficient entropy. Tested-by: Lucian Cristian <lucian.cristian@gmail.com> Signed-off-by: Petr Štetiar <ynezz@true.cz>
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