Getting a lot more entropy from the Raspberry Pi / 2017-07-24

2017-07-24 Getting a lot more entropy from the Raspberry Pi 4 months ago
Entropy graph of a Raspberry Pi On doing some research on randomness in Linux I found out about the rng-tools package which includes rngd which can get randomness from hardware random generators to linux /dev/random.

On the main homeserver greenblatt there was no hardware randomness source available, I already use randomsound to generate randomness from audio noise. I found out the Raspberry Pi has a hardware randomness source so I installed rng-tools and rngd was able to use it. The impact on the measured available entropy is quite visible.

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