Dachannien Ars Scholae Palatinae
16y
1,130
Subscriptor
OrvGull said:
Google has a quantum computing division. Implying they're close to some kind of breakthrough could absolutely juice their stock.
Maybe, but they actually explain the point in worrying now: Store-now-decrypt-later attacks can only really be mitigated by migrating systems to PQC. The sooner you do that, the smaller your data vulnerability surface is (in a timewise sense). If you get compromised in the future and your encrypted data gets exfiltrated, you're much better off if that data was protected with PQC. Your future vulnerability without PQC is by definition shorter if you implement now rather than later.

Based on that logic, the reason to pick, say, 2029 as a good must-implement date is because of the naturally decaying value of store-now-decrypt-later data. Even if QC isn't successful until 2039, deploying by 2029 means any vulnerable data would be 10 years old (and 10 years less valuable) by the time it gets cracked. The fact that they didn't pick a date even sooner just speaks to the monumental bulk of the task at hand.