private BiometricData( Asn1Sequence seq) { typeOfBiometricData = TypeOfBiometricData.GetInstance(seq[0]); hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]); biometricDataHash = Asn1OctetString.GetInstance(seq[2]); if (seq.Count > 3) { sourceDataUri = DerIA5String.GetInstance(seq[3]); } }