Record
getObject() {
	return new RRSIGRecord();
}
Recource Record Signature - An RRSIG provides the digital signature of an
RRset, so that the data can be authenticated by a DNSSEC-capable resolver.
The signature is generated by a key contained in a DNSKEY Record.
@see RRset
@see DNSSEC
@see KEYRecord

@author Brian Wellington
src/main/java/core/org/xbill/DNS/RRSIGRecord.java