Imagine a hypervisor spinning up 120 identical Linux instances - they all generate ssh-keys at the same time during boot/install (+- ms'). How can that be "good"? It will probably survive statistical testing but so a LCG. I have serious doubt that there is enough entropy in ze clouds. Btw: coolest way to harvest entropy is to feed your PRNG with SDR-input.
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Imagine a hypervisor spinning up 120 identical Linux instances - they all generate ssh-keys at the same time during boot/install (+- ms'). How can that be "good"? It will probably survive statistical testing but so a LCG. I have serious doubt that there is enough entropy in ze clouds. Btw: coolest way to harvest entropy is to feed your PRNG with SDR-input.