a #GByteArray which holds the DER encoded issuer DN.
used to interact with the user if necessary
Flags which affect the lookup operation.
a #GCancellable, or %NULL
callback to call when the operation completes
the data to pass to the callback function
2.30
Asynchronously lookup certificates issued by this issuer in the database. See g_tls_database_lookup_certificates_issued_by() for more information.
The database may choose to hold a reference to the issuer byte array for the duration of of this asynchronous operation. The byte array should not be modified during this time.