Add a certificate to the Reflection store. The imported file (typically a *.pfx or *.p12) must include a private key. Depending on how the file was created, you may be prompted for a password before you can import the file.
You will be prompted to enter a for to protect the private key in the Reflection store. If you specify a passphrase, you'll be prompted for this passphrase when this certificate is used to authenticate to a host.