Org.BouncyCastle.Pkix.PkixNameConstraintValidator.intersectDNS C# (CSharp) Метод

        private ISet intersectDNS(ISet permitted, ISet dnss)
        {
            ISet intersect = new HashSet();
            for (IEnumerator it = dnss.GetEnumerator(); it.MoveNext(); )
            {
                String dns = ExtractNameAsString(((GeneralSubtree)it.Current)
                    .Base);
                if (permitted == null)
                {
                    if (dns != null)
                    {
                        intersect.Add(dns);
                    }
                }
                else
                {
                    IEnumerator _iter = permitted.GetEnumerator();
                    while (_iter.MoveNext())
                    {
                        String _permitted = (String)_iter.Current;

                        if (WithinDomain(_permitted, dns))
                        {
                            intersect.Add(_permitted);
                        }
                        else if (WithinDomain(dns, _permitted))
                        {
                            intersect.Add(dns);
                        }
                    }
                }
            }

            return intersect;
        }