Certificate Login

[Mordeus]

I'am looking for a Certificate Login Howto. Until now I found nothing about it.
I don't know where to start. Is the login created with an apache or do I have to use PHP to use a login with a certificate?
The CA is no Problem with XCA I have everything I need to generate the needed Certs. I found tons of Information about SSL, but I don't think this has anything to do with cert login, does it?

greets
Mordeus

[falko]

What do you mean with "certificate login"?

[Mordeus]

I mean you log in with a certificate and not with your user/password.
I found this name on a http://www.cacert.org/. That is why i thougt this is the right name. But I couldn't find any information about it.

[falko]

Take a look here: http://www.howtoforge.com/ssh_key_based_logins_putty

Or search for "ssh public key authentication" on Google.

[Mordeus]

No that is not what i meant.
Login to a website with a cert not with SSH.

You can login to a website with user / password. Instead you use a cert. I already used this. But I don't know how to install an apache to do that.

[topdog]

There are security implications with doing this but using the pam system could be a start to designing this kind of system. Here is information on the PAM/X.509 certificate module. http://www.opensc-project.org/pam_pkcs11/