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Ask HN: Could we improve passwords this way?

2 pointsby davidiachover 8 years ago
I hate having to remember passwords, especially if they are complex&#x2F;secure and I&#x27;m sure others feel the same way.<p>So I had an idea, what if instead of having to remember a long, secure password, I just need to remember where to find it? As an example, I could use a permalink of a YouTube video as my password, this way I don&#x27;t need to remember what to type in, just where that video is located and copy paste the URL whenever I need to login.<p>Sure, such a approach has drawbacks such as how to make sure the video&#x2F;url doesn&#x27;t disappear, but otherwise I don&#x27;t see how an approach like this can&#x27;t be viable.<p>But I&#x27;m not an expert so can anyone tell me if this is a good idea or a bad one?<p>Thank you!

5 comments

LordWinstanleyover 8 years ago
Hopefully I&#x27;m not derailling the discussion too much but, while on the subject of alternatives to passwords, I&#x27;ve long wondered why ssh public&#x2F;private key pairs are not used for logging into websites?<p>I use ssh with public&#x2F;private keys to log in to various servers I host websites on, to connect to git repos, as well as to connect to &#x27;things&#x27;on my local network, such as RaspberryPis, etc. It&#x27;s about as painless as you can get and is very secure. So why is this method not used more widely on the web in general?<p>I realise that currently it&#x27;s not very user-friendly to create and upload ssh keys, as we have to do it from the command line. But I wouldn&#x27;t have thought it beyond the wit of software developers to put an idiot-proof GUI on top of the procedure. Then, whenever we need to create a login for somewhere, we&#x27;d just upload our public key and we&#x27;d have passwordless login.<p>It seems so obvious, there must be a practical reason it isn&#x27;t done. So, what is it?
probably_wrongover 8 years ago
Let&#x27;s start with something similar: instead of YouTube URLs (which may change), you turn the domain name into a number. That number is a page of a specific translation of the Bible, and you pick the first verse. Same idea, but the format won&#x27;t change.<p>Will this work for you? Yes. Will it scale? No. Here&#x27;s why:<p>Once I know the system, I can easily use it to impersonate you. You could add a secret, in which case all I have to do is run all verses, one by one, until I find the correct one. You could add requirements for a &quot;safe&quot; secret, in which case we just re-invented passwords. Keeping the book secret won&#x27;t work either, because if I know your scheme I just have to observe which books you check more often.<p>There&#x27;s also the issue of password reuse, with many people using the same password. Running the scheme with the top most popular books is likely to work well.<p>At the end of the day, if you keep the whole scheme in your head then you&#x27;ll be fine, and you&#x27;ll have a reasonably safe password. But a system that gets more insecure the more people knows about it is unfortunately not a good scheme.
Cozumelover 8 years ago
It&#x27;s an interesting approach. I can see it been useful if you need to log in from somewhere new and you don&#x27;t have any of your gear with you, but relying on an external site to not change their links is dodgy.<p>You could put a page on your website with a key like mysite.com&#x2F;mypasswords.php?key=1234 but that&#x27;s not really that secure either. I agree with the others, you&#x27;re better off just sticking with long random passwords and a password manager.
SuperPaintManover 8 years ago
Facebook does some jazz for my friends where they can log in by selecting a few faces. So that&#x27;s kind of similar.<p>I&#x27;m with imaginenore on this one, just use long randomly generated passwords.
imaginenoreover 8 years ago
So you will have one password for everything?<p>Just stop inventing nonsese schemes, and use a password manager and long randomly generated passwords.
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