1. Technology Knowledge Base - Client Certificate FAQ

2. Overview

Encryption

Authentication


3. CAcert

Client-cert-enabled Systems


To get your client cert from CAcert


To get someone else's CAcert client cert

4. Applications


Email Clients


Web Browser


Gotchas


Instant Messaging (IMs)


OpenSSH


Encryption Applications


Signing Documents


SVN


OpenSSL

5. Modifying software to use client certificates


OpenID


Apache


phpBB (ver 3) discussion forum


Enable Client Certs for .project


6. FAQ and Misc - Client Cert Troubleshooting


My IE is showing error code number "-2146885628" (or similar)


"Where is my private key? How do I use it on another computer?"


Renew Client Certs under FF

Were is the PKCS12 file? - I only have the PEM file that says its for smartcard only


"Windows does not have enough information to verify this certificate"


My cert is in the browser but not my email client - what now?


How to enable Client Cert authentication in your Web-Applications


7. How can I use Client Certificates like SSH?


8. Further References


9. Inputs & Thoughts