Test PlayerPrefs Encryption

using Tesseraction.Functions;
using UnityEngine;
using UnityEngine.Assertions;

public class TestEncryptionPlayerPrefs : MonoBehaviour
{
    public string passwordString = "YourAppPasswordHere";
    public string stringToStoreInPlayerPrefs = "Some string with values you want to encrypt and store in PlayerPrefs";

    private void Start()
    {
        NormalUsage ();
        EncryptedUsage ();
    }

    private void NormalUsage ()
    {
        // Normal usage set
        PlayerPrefs.SetString ("Unencrypted string", stringToStoreInPlayerPrefs);

        // Normal usage get
        string fetchUnencryptedString = PlayerPrefs.GetString ("Unencrypted string");

        // Test that get is same as original
        // If an assertion fails it will show as an error in the console
        Assert.AreEqual (fetchUnencryptedString, stringToStoreInPlayerPrefs);

        // If all assertions pass, it will show this message in console instead
        Debug.Log ("Normal usage assertions passed successfully.");
    }

    private void EncryptedUsage ()
    {
        // Creates the encryption key byte array that AES needs for its parameter of the password
        byte [] encryptionKey = EncryptionFunctions.GeneratePasswordEncryptionKey (passwordString);

        // Encrypt the string value using that key and store result in PlayerPrefs
        string encryptedString = EncryptionFunctions.EncryptString (stringToStoreInPlayerPrefs, encryptionKey);
        PlayerPrefs.SetString ("Encrypted string", encryptedString);
        Debug.Log ("Stored original value \"" + stringToStoreInPlayerPrefs + "\"\n as encrypted value \"" + encryptedString + "\" in PlayerPrefs");

        // Assert that original and encrypted are different
        Assert.AreNotEqual (encryptedString, stringToStoreInPlayerPrefs);

        // Encrypted usage get
        string fetchEncryptedString = PlayerPrefs.GetString ("Encrypted string");
        Assert.AreEqual (fetchEncryptedString, encryptedString);

        // Decrypt it using the same key as before
        string decryptedString = EncryptionFunctions.DecryptString (fetchEncryptedString, encryptionKey);
        Debug.Log ("Decrypted value is \"" + decryptedString + "\"");

        // Test that decrypted value is same as original
        // If an assertion fails it will show as an error in the console
        Assert.AreEqual (decryptedString, stringToStoreInPlayerPrefs);

        // If all assertions pass, it will show this message in console instead
        Debug.Log ("Encrypted usage assertions passed successfully.");
    }
}