val notAfter: Long,
) {
  // Avoid Long.hashCode(long) which isn't available on Android 5.
  override fun hashCode(): Int {
    var result = 0
    result = 31 * result + notBefore.toInt()
    result = 31 * result + notAfter.toInt()
    return result
  }
}

internal data class SubjectPublicKeyInfo(
  val algorithm: AlgorithmIdentifier,
  val subjectPublicKey: BitString,
)