.certificateAuthority(0)
        .rsa2048()
        .signedBy(root)
        .build()
    assertThat(root.certificate.sigAlgName).isEqualTo("SHA256WITHECDSA", ignoreCase = true)
    assertThat(leaf.certificate.sigAlgName).isEqualTo("SHA256WITHECDSA", ignoreCase = true)
  }

  @Test
  fun decodeEcdsa256() {
    // The certificate + private key below was generated programmatically:
    //

   */
  val signatureAlgorithmName: String
    get() {
      return when (signature.algorithm) {
        ObjectIdentifiers.SHA256_WITH_RSA_ENCRYPTION -> "SHA256WithRSA"
        ObjectIdentifiers.SHA256_WITH_ECDSA -> "SHA256withECDSA"
        else -> error("unexpected signature algorithm: ${signature.algorithm}")
      }
    }

  // Avoid Long.hashCode(long) which isn't available on Android 5.
  override fun hashCode(): Int {