class OzoneBlockTokenSecretManager extends
    OzoneSecretManager<OzoneBlockTokenIdentifier> {

  public boolean verifySignature(OzoneBlockTokenIdentifier identifier,
      byte[] password) {
    throw new UnsupportedOperationException("This operation is not " +
        "supported for block tokens.");
  }

  public  OzoneBlockTokenSecretManager(SecurityConfig conf,
      long blockTokenExpirytime, String omCertSerialId);

}