aes Encrypt Decrypt

aesEncryptDecrypt.kts

@file:OptIn(ExperimentalEncodingApi::class)

import javax.crypto.Cipher
import javax.crypto.spec.SecretKeySpec

import kotlin.io.encoding.Base64
import kotlin.io.encoding.ExperimentalEncodingApi

@OptIn(ExperimentalEncodingApi::class)
fun decrptAES(cipherText: String?): String {
    try {
        val keySpec = SecretKeySpec("yeygxvhdnndnndnn".toByteArray(), "AES")
        var cipher: Cipher? = null
        cipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
        cipher.init(Cipher.DECRYPT_MODE, keySpec)
        val decode: ByteArray = Base64.decode(cipherText!!.toByteArray())
        val decryptedText = cipher.doFinal(decode)
        return String(decryptedText)
    } catch (e: Exception) {
        return cipherText ?: ""
    }
}


@OptIn(ExperimentalEncodingApi::class)
fun encryptAES(cipherText: String?): String {
    try {
        val keySpec = SecretKeySpec("yeygxvhdnndnndnn".toByteArray(), "AES")
        var cipher: Cipher? = null
        cipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
        cipher?.init(Cipher.ENCRYPT_MODE, keySpec)
        val ba = cipher!!.doFinal(cipherText!!.toByteArray())
        val decode: ByteArray = Base64.encodeToByteArray(ba)
        return String(decode)
    } catch (e: Exception) {
        return cipherText ?: ""
    }
}


println(encryptAES("ABCD"))
println(decrptAES("eCZPlzXj5m0wtMBKy+U6Zg=="))