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On 11/21/2016 06:30 PM, Torvald Riegel wrote:
Does the kernel guarantee this, meaning that it's specifically documented as part of the interface?
Yes, if the flags argument is 0, the call will only block if the kernel randomness pool has not been seeded yet. And this is the reason why people want getrandom: they want to stop reading potentially predictable bits from /dev/urandom.
This is documented in the manual page. Florian
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