Rsa.kt

import java.security.Key
import javax.crypto.Cipher

class Rsa {
    fun encrypt(key: Key, pt: ByteArray): ByteArray {
        val c = Cipher.getInstance("RSA");
        c.init(Cipher.ENCRYPT_MODE, key)
        return c.doFinal(pt)
    }

    fun decrypt(key: Key, ct: ByteArray): ByteArray {
        val c = Cipher.getInstance("RSA");
        c.init(Cipher.DECRYPT_MODE, key)
        return c.doFinal(ct)
    }
}