[cryptography] urandom vs random
James A. Donald
jamesd at echeque.com
Sat Aug 17 17:14:31 EDT 2013
On 2013-08-17 5:57 PM, Peter Gutmann wrote:
> Nico Williams <nico at cryptonector.com> writes:
>> It might be useful to think of what a good API would be.
> The problem isn't the API, it's the fact that you've got two mutually
> exclusive requirements, the security geeks want the (P)RNG to block until
> enough entropy is available, everyone else wants execution to continue without
> being blocked. In other words a failure of security is preferred to a failure
> of functionality. Until you resolve that conflict, no API (re)design is going
> to help you.
The security geeks are the only people who want to use these. If on
some systems urandom is "fixed" to not block at startup, cannot use it
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