diff --git a/nsecx.go b/nsecx.go
index b98ee130..8afe133f 100644
--- a/nsecx.go
+++ b/nsecx.go
@@ -52,68 +52,3 @@ func HashName(label string, ha uint8, iter uint16, salt string) string {
 	}
 	return unpackBase32(nsec3)
 }
-
-// Implement the HashNames method of Denialer
-func (rr *NSEC3) HashNames(domain string) {
-	rr.Header().Name = strings.ToLower(HashName(rr.Header().Name, rr.Hash, rr.Iterations, rr.Salt)) + "." + domain
-	rr.NextDomain = HashName(rr.NextDomain, rr.Hash, rr.Iterations, rr.Salt)
-}
-
-// Implement the Match method of Denialer
-func (rr *NSEC3) Match(domain string) bool {
-	return strings.ToUpper(SplitDomainName(rr.Header().Name)[0]) == strings.ToUpper(HashName(domain, rr.Hash, rr.Iterations, rr.Salt))
-}
-
-// Implement the Match method of Denialer
-func (rr *NSEC) Match(domain string) bool {
-	return strings.ToUpper(rr.Header().Name) == strings.ToUpper(domain)
-}
-
-func (rr *NSEC3) MatchType(rrtype uint16) bool {
-	for _, t := range rr.TypeBitMap {
-		if t == rrtype {
-			return true
-		}
-		if t > rrtype {
-			return false
-		}
-	}
-	return false
-}
-
-func (rr *NSEC) MatchType(rrtype uint16) bool {
-	for _, t := range rr.TypeBitMap {
-		if t == rrtype {
-			return true
-		}
-		if t > rrtype {
-			return false
-		}
-	}
-	return false
-}
-
-// Cover checks if domain is covered by the NSEC3 record. Domain must be given in plain text (i.e. not hashed)
-// TODO(mg): this doesn't loop around
-// TODO(mg): make a CoverHashed variant?
-func (rr *NSEC3) Cover(domain string) bool {
-	hashdom := strings.ToUpper(HashName(domain, rr.Hash, rr.Iterations, rr.Salt))
-	nextdom := strings.ToUpper(rr.NextDomain)
-	owner := strings.ToUpper(SplitDomainName(rr.Header().Name)[0])                                                                     // The hashed part
-	apex := strings.ToUpper(HashName(strings.Join(SplitDomainName(rr.Header().Name)[1:], "."), rr.Hash, rr.Iterations, rr.Salt)) + "." // The name of the zone
-	// if nextdomain equals the apex, it is considered The End. So in that case hashdom is always less then nextdomain
-	if hashdom > owner && nextdom == apex {
-		return true
-	}
-
-	if hashdom > owner && hashdom <= nextdom {
-		return true
-	}
-
-	return false
-}
-
-// Cover checks if domain is covered by the NSEC record. Domain must be given in plain text.
-func (rr *NSEC) Cover(domain string) bool {
-	return false
-}