Why can I use OpenSSL certificates with SSL client authentication?
What will typically happen is that when a server requests authentication it will either not include your certificate or tell you that you have no client certificates (Netscape) or present you with an empty list box (MSIE). The reason for this is that when a server requests a client certificate it includes a list of CAs names which it will accept. Browsers will only let you select certificates from the list on the grounds that there is little point presenting a certificate which the server will reject. The solution is to add the relevant CA certificate to your servers “trusted CA list”. How you do this depends on the server software in uses. You can print out the servers list of acceptable CAs using the OpenSSL s_client tool: openssl s_client -connect www.some.host:443 -prexit If your server only requests certificates on certain URLs then you may need to manually issue an HTTP GET command to get the list when s_client connects: GET /some/page/needing/a/certificate.html If your CA does n
