3 ms·
That's not N^2 it's N*k where k is number of devices and is generally very low. Most people will have at most 3 or 4 devices. You could also have a single key a
by staticassertion 9y ago
That's not N^2 it's N*k where k is number of devices and is generally very low. Most people will have at most 3 or 4 devices. You could also have a single key and store it on a wearable device, like a phone or watch, and we're back down to a single key per person.
I think the bigger issue with PSK at scale is key generation and distribution.
- deleted 9y ago[deleted]
- IncRnd 9y agoIt's n^2 across all devices. You don't use the same key between two different pairs of parties.
- staticassertion 9y agoOhh, I see what you're saying.
- betterunix2 9y agoIn practice you would probably use something like Kerberos to avoid the quadratic overhead.
- IncRnd 9y agoAs long as the AES key size is 256 and not one of the 128 versions.