How to Convert SSL Certificate to Security Key File

Visit SSL Shopper, an SSL converter (see Resources).
Click "Choose File" to choose the SSL certificate you want to convert to another security key file and then click "Open" to load the SSL certificate.

Click "Type of Current Certificate" and then select your current certificate type. The definitions for each security key file are on the converter page if you are not sure what type of certificate you have or want to convert your SSL certificate to.
Click "Type to Convert to" and then select a security key file.
Click "Convert Certificate" to initiate conversion of your SSL certificate.