} catch (e: NoSuchElementException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    } catch (e: IllegalArgumentException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    } catch (e: GeneralSecurityException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    }
  }
}

internal data class TbsCertificate(