In article <cy1pr03mb2265659f67817df02f3fcf29a3...@cy1pr03mb2265.namprd03.prod.outlook.com> you write: >The issue with IEEE MAC's is that it's sent to untrusted observers, not that >it is a stable identifier per se. >It just so happens that you typically don't have a choice but to send it in >packets such that it can be observed >by untrusted observers, hence the need to use randomized MACs.
It's not just that, it's that MACs have a structure and there's a registry of prefixes so you can look at a MAC and know who the manufacturer is and usually what kind of device it is. For example, prefix 2C-BE-08 is Apple, and anything with that prefix is probably a Macbook. If the unique ID is a version 4 UUID with no structure, I'd think those particular problems would go away. There may well still be stuff you can derive from knowing that this device now is the same as that device then. R's, John _______________________________________________ perpass mailing list [email protected] https://www.ietf.org/mailman/listinfo/perpass
