RLEKDq9K

1using UnityEngine;
2using System.Security.Cryptography;
3using System.Text;
4
5public class ProtectedPrefs {
6	
7	public static void SetString(string key, string value) {
8		PlayerPrefs.SetString(md5(key), encrypt(value));
9	}
10	
11	public static string GetString(string key, string defaultValue) {
12		if (!HasKey (key))
13			return defaultValue;
14		try {
15			string s = decrypt(PlayerPrefs.GetString(md5(key)));
16			return s;
17		}
18		catch {
19			return defaultValue;
20		}
21	}
22	
23	public static string GetString(string key) {
24		return GetString(key, "");
25	}
26	
27	public static void SetInt(string key, int value) {
28		PlayerPrefs.SetString(md5(key), encrypt(value.ToString()));
29	}
30	
31	public static int GetInt(string key, int defaultValue) {
32		if (!HasKey (key))
33			return defaultValue;
34		try {
35			string s = decrypt(PlayerPrefs.GetString(md5(key)));
36			int i = int.Parse(s);
37			return i;
38		}
39		catch {
40			return defaultValue;
41		}
42	}
43	
44	public static int GetInt(string key) {
45		return GetInt(key, 0);
46	}
47	
48	
49	public static void SetFloat(string key, float value) {
50		PlayerPrefs.SetString(md5(key), encrypt(value.ToString()));
51	}
52	
53	
54	public static float GetFloat(string key, float defaultValue) {
55		if (!HasKey (key))
56			return defaultValue;
57		try {
58			string s = decrypt(PlayerPrefs.GetString(md5(key)));
59			float f = float.Parse(s, System.Globalization.CultureInfo.InvariantCulture);
60			return f;
61		}
62		catch {
63			return defaultValue;
64		}
65	}
66	
67	public static float GetFloat(string key) {
68		return GetFloat(key, 0);
69	}
70	
71	public static bool HasKey(string key) {
72		return PlayerPrefs.HasKey(md5(key));
73	}
74	
75	public static void DeleteAll() {
76		PlayerPrefs.DeleteAll();
77	}
78	
79	public static void DeleteKey(string key) {
80		PlayerPrefs.DeleteKey(md5(key));
81	}
82	
83	public static void Save() {
84		PlayerPrefs.Save ();
85	}
86	
87
88	private static string secretKey = "1234567890";
89	private static byte[] key = new byte[8] {55, 13, 47, 24, 99, 111, 31, 67};
90	private static byte[] iv = new byte[8] {15, 28, 44, 30, 88, 12, 8, 217};
91	
92	private static string encrypt(string s)
93	{
94		byte[] inputbuffer = Encoding.Unicode.GetBytes(s);
95		byte[] outputBuffer = DES.Create().CreateEncryptor(key, iv).TransformFinalBlock(inputbuffer, 0, inputbuffer.Length);
96		return System.Convert.ToBase64String(outputBuffer);
97	}
98	
99	private static string decrypt(string s) {
100		byte[] inputbuffer = System.Convert.FromBase64String(s);
101		byte[] outputBuffer = DES.Create().CreateDecryptor(key, iv).TransformFinalBlock(inputbuffer, 0, inputbuffer.Length);
102		return Encoding.Unicode.GetString(outputBuffer);
103	}
104	
105	private static string md5(string s) {
106		byte[] hashBytes = new MD5CryptoServiceProvider().ComputeHash(new UTF8Encoding().GetBytes(s + secretKey + SystemInfo.deviceUniqueIdentifier));
107		string hashString = "";
108		for (int i = 0; i < hashBytes.Length; i++) {
109			hashString += System.Convert.ToString(hashBytes[i], 16).PadLeft(2, '0');
110		}
111		return hashString.PadLeft(32, '0');
112	}
113}