Create a handle string for the certificate. The database will only be able
to create a handle for certificates that originate from the database. In
cases where the database cannot create a handle for a certificate,
will be returned.
This handle should be stable across various instances of the application, and between applications. If a certificate is modified in the database, then it is not guaranteed that this handle will continue to point to it.
Available since: 2.30
Certificate for which to create a handle.
The data is owned by the caller of the function.