### Generating a Certificate Request - Signing

If this is an additional certificate request -- meaning you've alredy received at least one certificate -- you may sign your certificate request using an existing certificate.

Issuers may require that additional certificate requests from the same individual be signed, or there may be an advantage in signing your request. For example, In ARRL's Logbook of the World system, a signed request may not require that you provide supporting documentation, whereas an unsigned request does. Also, in LOTW signing the certificate request associates the new certificate with the one used for signing so that all of the submissions made with the certificates can be accessed via the same Web site user account.

In general, if you can sign a request, you should.

To sign your requst, simply select the certificate to use for signing by clicking on it. If the certificate's private key is password protected, you'll have to supply the password after selecting Next.

Next: Sending the Certificate Request