Cifrado simétrico AES (Advanced Encryption Standard) en Kotlin (añadiendo una clave de tipo String) | Operating systems, scripting, PowerShell and security

Criptografía, Kotlin

import java.nio.charset.StandardCharsets
import java.util.Base64
import javax.crypto.Cipher
import javax.crypto.SecretKey
import javax.crypto.spec.SecretKeySpec

fun main() {
    val claveTextoNormal = "1234567891234567"

    // Codificar la clave a Base64
    val encodedKey: String = Base64.getEncoder().encodeToString(claveTextoNormal.toByteArray(StandardCharsets.UTF_8))
    val decodedKey: ByteArray = Base64.getDecoder().decode(encodedKey)

    val originalKey: SecretKey = SecretKeySpec(decodedKey, 0, decodedKey.size, "AES")
    println("originalKey: $claveTextoNormal")

    val cipher = Cipher.getInstance("AES")

    val clearText = "hola"
    val clearTextBytes = clearText.toByteArray(StandardCharsets.UTF_8)
    println("Texto en claro: $clearText")

    cipher.init(Cipher.ENCRYPT_MODE, originalKey)
    val cipherBytes = cipher.doFinal(clearTextBytes)
    val cipherText = String(cipherBytes, StandardCharsets.UTF_8)
    println("Texto cifrado: $cipherText")

    cipher.init(Cipher.DECRYPT_MODE, originalKey)
    val decryptedBytes = cipher.doFinal(cipherBytes)
    val decryptedText = String(decryptedBytes, StandardCharsets.UTF_8)
    println("Texto descifrado: $decryptedText")
}

import java.nio.charset.StandardCharsets

import java.util.Base64

import javax.crypto.Cipher

import javax.crypto.SecretKey

import javax.crypto.spec.SecretKeySpec

fun main() {

val claveTextoNormal = "1234567891234567"

// Codificar la clave a Base64

val encodedKey: String = Base64.getEncoder().encodeToString(claveTextoNormal.toByteArray(StandardCharsets.UTF_8))

val decodedKey: ByteArray = Base64.getDecoder().decode(encodedKey)

val originalKey: SecretKey = SecretKeySpec(decodedKey, 0, decodedKey.size, "AES")

println("originalKey: $claveTextoNormal")

val cipher = Cipher.getInstance("AES")

val clearText = "hola"

val clearTextBytes = clearText.toByteArray(StandardCharsets.UTF_8)

println("Texto en claro: $clearText")

cipher.init(Cipher.ENCRYPT_MODE, originalKey)

val cipherBytes = cipher.doFinal(clearTextBytes)

val cipherText = String(cipherBytes, StandardCharsets.UTF_8)

println("Texto cifrado: $cipherText")

cipher.init(Cipher.DECRYPT_MODE, originalKey)

val decryptedBytes = cipher.doFinal(cipherBytes)

val decryptedText = String(decryptedBytes, StandardCharsets.UTF_8)

println("Texto descifrado: $decryptedText")

}

Cifrado simétrico AES (Advanced Encryption Standard) en Kotlin (añadiendo una clave de tipo String) (Kotlin, Criptografía)

LIBRO DE POWERSHELL

LO ÚLTIMO

VÍDEOS