public BiometricData(
     TypeOfBiometricData	typeOfBiometricData,
     AlgorithmIdentifier	hashAlgorithm,
     Asn1OctetString		biometricDataHash)
 {
     this.typeOfBiometricData = typeOfBiometricData;
     this.hashAlgorithm = hashAlgorithm;
     this.biometricDataHash = biometricDataHash;
     this.sourceDataUri = null;
 }
		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]);
			}
        }
        public NetscapeRevocationUrl(DerIA5String str)
			: base(str.GetString())
        {
        }
        public VerisignCzagExtension(DerIA5String str)
			: base(str.GetString())
        {
        }