val privateKeyPkcs8Pem: String = heldCertificate.privateKeyPkcs8Pem()
    val privateKeyPkcs1Pem: String = heldCertificate.privateKeyPkcs1Pem()
  }

  @Test
  fun heldCertificateBuilder() {
    val keyPair: KeyPair = KeyPairGenerator.getInstance("").genKeyPair()
    var builder: HeldCertificate.Builder = HeldCertificate.Builder()
    builder = builder.validityInterval(0L, 0L)