public void Import (Stream stream, bool trusted)
{
if (stream == null)
throw new ArgumentNullException ("stream");
var parser = new X509CertificateParser ();
foreach (X509Certificate certificate in parser.ReadCertificates (stream)) {
if (dbase.Find (certificate, X509CertificateRecordFields.Id) != null)
continue;
var record = new X509CertificateRecord (certificate);
record.IsTrusted = trusted;
dbase.Add (record);
}
}