Hi Toerless,
On 7/6/17 9:09 AM, Toerless Eckert wrote: > On Thu, Jul 06, 2017 at 04:34:05PM +1200, Brian E Carpenter wrote: >> It used to be, but the recommendation today is a pseudo-random >> value (RFC7217). In any case it's a software choice. > brand new recommendations do not equate to be expected > standard practice in products. Would be very good to have > folks with practical insight into various products to > provide more information. On this point, I think it's quite likely that we will see a good number of devices fielded that will do a lousy job of PRNG, and so it would be inadvisable for them to implement RFC7217, lest they test their DAD code in ways not really intended. I'm not thinking about iPhones here, but energy harvesting devices like some light switches, and a bunch of, well,... crap. The question is whether you should design for these devices. IMHO "no" is a perfectly valid answer, but I'm still a bit skeptical about the value of 7217 for these class of devices in any event. Eliot
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