@RestrictedApi(
      explanation = "Accessing parts of keys can produce unexpected incompatibilities, annotate the function with @AccessesPartialKey",
      link = "https://developers.google.com/tink/design/access_control#accessing_partial_keys",
      allowedOnPath = ".*Test\\.java",
      allowlistAnnotations = {AccessesPartialKey.class})
  @Nullable
  public ECPoint getNistCurvePoint() {
    return nistPublicPoint;
  }
Returns the underlying public point if the curve is a NIST curve.

<p>Returns null if the curve used for this key is not a NIST curve.
java_src/src/main/java/com/google/crypto/tink/hybrid/EciesPublicKey.java