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Password-less authentication for web site

jnbkze asked
Last Modified: 2011-10-03
Hi All,

I'm looking for a way to allow users to "authenticate" on my web site with out a password. Essentially doing the same as ssh public key authentication. I was hoping to to be able to email user who can access my site a certificate / token or something similar which they store on their machine. Then I would have a piece of PHP code to validate that certificate / token. If they could be validated then they could see the site - if not then they get redirected to another page explaining that access is denied.
Does anyone out ther have any ideas? Thanks.
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