import java.security.MessageDigest

fun String.toMD5() = hashWithAlgorithm("MD5")
fun String.toSHA() = hashWithAlgorithm("SHA")
fun String.toSHA256() = hashWithAlgorithm("SHA256")

fun String.hashWithAlgorithm(algorithm: String): String {
    val digest = MessageDigest.getInstance(algorithm)
    val bytes = digest.digest(this.toByteArray(Charsets.UTF_8))
    return bytes.fold("", { str, it -> str + "%02x".format(it) })
}