public static boolean isNistEcParameterSpec(ECParameterSpec spec) {
    return EllipticCurvesUtil.isNistEcParameterSpec(spec);
  }
Returns whether {@code spec} is a {@link ECParameterSpec} of one of the NIST curves.
java_src/src/main/java/com/google/crypto/tink/subtle/EllipticCurves.java