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It's not possible to one-way hash a 32-bit IP address. A hash of a 32-bit value can always be reversed because the search space is so small.
by sheeper 8y ago
It's not possible to one-way hash a 32-bit IP address. A hash of a 32-bit value can always be reversed because the search space is so small.
- lodi 8y agoWho cares if it’s trivially hackable; we’re talking about a legal checkbox that you have to tick.
- sheeper 8y agoA reversable hash "could reasonably be linked" with the plaintext. You can't get around the law on technicalities. Judges are not computers.
- lyxsus1 8y ago> You can't get around the law on technicalities. Simply out of curiosity, what do you mean by that? All my life experience and knowledge tells me it's exactly how you get around the law, unless court has its own agenda or strong bias.
- elliekelly 8y agohttps://en.wikipedia.org/wiki/I_know_it_when_I_see_it https://en.wikipedia.org/wiki/I_know_it_when_I_see_it
- TeMPOraL 8y agoI do. People treating privacy protections as "legal checkbox that you have to tick" are the reason regulations like this show up in the first place.
- dorgo 8y agoStore only the first 16 bits of the hash maybe?
- akvadrako 8y agoGoogle Analytics is supposedly GDPR compliant when they store only the first 3 octets, un-hashed. However I'm not sure myself it makes sense. Some people will be identified by just a partial IP or even a partial hash.