3 ms·
Facebook knows the nine billion most common human names. On my Mac, sha256() takes 288ns, so running nine billion of them to find the collision would take abou
by gcr 3y ago
Facebook knows the nine billion most common human names.
On my Mac, sha256() takes 288ns, so running nine billion of them to find the collision would take about 43 CPU-minutes.
- mkmk 3y agoThe whole point of sending the hash to FB is so that they can look it up against the hashes of people to whom they have served an ad.