On Wed, 17 Sep 2003 bdragon@gweep.net wrote:
If the goal were unique identification, MAC addresses would do just fine. No need for DNS.
MAC addresses are not without authority delegation. The IEEE is the ultimate authority in said case.
Yep... But have you seen any controversy about who gets which block of MAC addresses recently? They're not scarce, and every block is just as good as any other block.
There is no controvery because there is both close cooperation (those who choose the mac addresses aren't the great unwashed masses of spammers and those with nebulous business plans) and a singular authority to arbitrate in the event of collisions.
Any solution which requires uniqueness also requires a singular ultimate authority.
Not really. You can just take random numbers. If you have enough bits (and a good RNG) the probability of collision would be less than probability of an asteroid wiping the life on Earth in the next year.
While collisions are unlikely, they are not impossible, and humans being humans, the general public is unlikely to cooperatively resolve collisions without a central authority. RNG is not uniqueness, it is merely pseudo-uniqueness. So, again, when uniqueness is required, a single central authority is also a requirement. <snip>