PQC and Future Secure Logins

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alienjon · Post by **alienjon** » Thu Mar 26, 2026 12:16 am

Just read through this Ars article that talks about Google estimating the point when Quantum Computing will be able to break modern day encryptions as being sooner than previously thought. Thoughts and arguments for the validity of this aside, the article talks about PQC (post-quantum cryptography) as the response to the dilemma. I'm not personally in a tech field and pick up a lot of this kind of news in the second/third hand and, frankly, while I currently have a public key setup for ssh access to my Gentoo server I'm not even sure what kinds of things I could/should be reading up on now to better understand this problem for later. Any recommendations for what to know for the growth of quantum computing and managing related security concerns? Any current steps/preparations I could be making?

eccerr0r · Post by **eccerr0r** » Thu Mar 26, 2026 1:27 am

Collect a lot of money and be prepared to pay google?
Really nothing can be done in preparation, need to have one time pads and stuff with your communication partner.
TBH with larger key sizes it still will take QC a while to figure out IMHO. Hope is that you change keys often enough to throw off any attempts.

BTW the skript kiddies will probably not have access for at least a while so it's just government and big corporations like google that you have to worry about...

alienjon · Post by **alienjon** » Thu Mar 26, 2026 2:41 am

Thanks for the thoughts. Just having my one home server (given there's several things running on it) I hadn't really thought about a need to change keys. Any suggestions for reading up on QC? Maybe for beginners?