3 ms·
A MAC address is only 48 bits and some of the bits are restricted. It is well within the range of brute force to reverse all of the hashes.
by kevincox 2y ago
A MAC address is only 48 bits and some of the bits are restricted. It is well within the range of brute force to reverse all of the hashes.
- joelkoen 2y agoYou can truncate the hash to cause collisions, meaning that one MAC address does not map to one location. This requires the client to be aware of multiple physically nearby MACs in order to get a location, as it then needs to estimate which "possible" locations are most likely. This is a really interesting problem, and I've loved thinking about it recently. If you're keen on it too I'm happy to discuss further, feel free to reach out.
- userbinator 2y agoTo put that into perspective, 48 bits is 256T, which is roughly the number of bits in a 32TB hard drive.
- account42 2y ago> and some of the bits are restricted
- landdownsundar 2y agoAbsolutely right, great point. That's why I only use Windows addresses now. Can't break those with brute force!
- deleted 2y ago[deleted]