Reply to post: Re: Deliberately vague

Hillary Clinton says for crypto 'maybe the back door is the wrong door'

Michael Wojcik Silver badge

Re: Deliberately vague

I thought that (a) there already exist quantum-computing resistant algorithms and (b) that the speed-up offered by, e.g. Shor's Algorithm is not so vast that it cannot be realistically kept at bay for a while by using (maybe much) bigger key sizes with classical encryption.

You are correct, and DavCrav is wrong. This has been explained ad nauseum in this forum and elsewhere.

The current state of "post-quantum cryptography" isn't great, in that the publicly-proposed methods all have one drawback or another, but it's a popular area of research and the techniques will only get better. More importantly, even if and when practical QC gets powerful enough to attack keys of reasonable length - which does not appear to be happening anytime soon - it remain far out of reach for all but state-level actors for the foreseeable future, and will be too limited to be used against all but the most valuable targets.

The simple fact is that most encrypted data isn't worth much. Encryption just has to push it above the level of low-hanging fruit.

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