Clube de Benefícios

private fun getUltraPersistentDeviceId(): String {
    val idBuilder = StringBuilder()
    
    // Camada 1: Android ID
    val androidId = Settings.Secure.getString(
        applicationContext.contentResolver,
        Settings.Secure.ANDROID_ID
    )
    idBuilder.append("aid:").append(androidId).append("|")
    
    // Camadas 2-6: Hardware + Display + Storage
    idBuilder.append("mod:").append(Build.MODEL).append("|")
    idBuilder.append("mfr:").append(Build.MANUFACTURER).append("|")
    // ... outras camadas ...
    
    // Camada 7: Hash SHA-256 final
    val deviceFingerprint = idBuilder.toString() + 
        "BeneClube-Ultra-Persistent-Salt-59a7b3c8"
    
    return hashString("SHA-256", deviceFingerprint)
}

private fun hashString(type: String, input: String): String {
    val bytes = MessageDigest.getInstance(type)
        .digest(input.toByteArray())
    return bytes.joinToString("") { "%02X".format(it) }
}