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How would an OS seed an RNG in the cloud? How would you seed an RNG on a headless server in a VM? What about when that VM is copied, possibly while running, i
by IncRnd 6y ago
How would an OS seed an RNG in the cloud? How would you seed an RNG on a headless server in a VM? What about when that VM is copied, possibly while running, in order to duplicate server functionality? There are vulnerabilities and threats here that your comment does not take into account.
- trasz 6y agoYou can use virtio_random. But really, it's not about operating systems not using RDRAND at all - it's fine to use it as one of the entropy sources; what you don't want to do is use RDRAND directly instead of CPRNG.