RE: Client Auth Retries (Apache Users)

I don't have an answer for you, a couple thoughts though, are you using an SSL cache that may be caching the info? I think there is a cache directive in mod ssl. Or is there software on the client for handling the smart card that could be set or configured to renegotiate?

From: mcgredo@xxxxxxx
To: users@xxxxxxxxxxxxxxxx
Date: Wed, 3 Jun 2015 23:21:57 +0000
Subject: Re: [users@httpd] Client Auth Retries

This behavior is puzzling.

*Once the browser goes to the “mistake” page, it won’t renegotiate

the SSL connection with the smart card despite

- No open https connections to the server

- The behavior persists across a server restart

- The behavior persists across a “clear cache” on the client browser (Chrome)

The only way to force it to use the smart card auth appears to be quitting and restarting

the browser.

On Jun 2, 2015, at 3:18 PM, McGregor, Donald (Don) (CIV) <mcgredo@xxxxxxx> wrote:

I’m trying to set up client authentication using smart cards and be reasonably polite about

auth failures. A typical failure mode is that the user doesn’t have the card inserted; I

should send them to a warning page, then let them retry.

The relevant config file for the top level:

SSLVerifyClient optional

RewriteEngine On

RewriteCond %{SSL:SSL_CLIENT_VERIFY} !^SUCCESS

RewriteRule .* /mistake/index.html [L]

<Directory /var/www/html/mistake>

SSLVerifyClient none

</Directory>

Client auth is optional, but if it fails they see the informational

page telling them to use a smart card, in a directory

without smart card auth required.

This successfully rewrites to the informational page when they

don’t have the smart card inserted. The first time in If client auth fails for

some reason they see the error page, and if they do have

the card and authenticate, they see the expected content.

But if they see the error page, then insert the card, and then

try to go to the https://myhost/content, they continue to

see the error page. It seems as if the HTTPS connection

is not being renegotiated or that the SSL_CLIENT_VERIFY

is not being reset to SUCCESS on retry. Or is there a

better way to do this?