unity3d-解密加密数据

利用RijndaelManaged加密解码。需要导入命名空间 using System.Security.Cryptography;

一个很简单的例子，最终的结果

解密和加密类

public class DESEncrypt
{

    #region ========加密========
    /// <summary> 
    /// 加密数据 
    /// </summary> 
    /// <param name="Text">要加密的内容</param> 
    /// <param name="sKey">key，必须为32位</param> 
    /// <returns></returns> 
    public static string Encrypt(string Text, string sKey)
    {
        byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);

        RijndaelManaged encryption = new RijndaelManaged();

        encryption.Key = keyArray;

        encryption.Mode = CipherMode.ECB;

        encryption.Padding = PaddingMode.PKCS7;

        ICryptoTransform cTransform = encryption.CreateEncryptor();

        byte[] _EncryptArray = UTF8Encoding.UTF8.GetBytes(Text);

        byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, 0, _EncryptArray.Length);

        return Convert.ToBase64String(resultArray, 0, resultArray.Length);

    }

    #endregion

    #region ========解密========
    /// <summary> 
    /// 解密数据 
    /// </summary> 
    /// <param name="Text"></param> 
    /// <param name="sKey"></param> 
    /// <returns></returns> 
    public static string Decrypt(string Text, string sKey)
    {
        byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);

        RijndaelManaged decipher = new RijndaelManaged();

        decipher.Key = keyArray;

        decipher.Mode = CipherMode.ECB;

        decipher.Padding = PaddingMode.PKCS7;

        ICryptoTransform cTransform = decipher.CreateDecryptor();

        byte[] _EncryptArray = Convert.FromBase64String(Text);

        byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, 0, _EncryptArray.Length);

        return UTF8Encoding.UTF8.GetString(resultArray);

    }

    #endregion

}

编写测试代码

 1 using UnityEngine;
 2 using System.Collections;
 3 using System;
 4 using System.Security.Cryptography;
 5 using System.Text;
 6 public class da : MonoBehaviour
 7 {
 8 
 9     //需要加密的字符串
10     string encrypt = string.Empty;
11     //加密后的字符串
12     string desEncrypt = string.Empty;
13     // Use this for initialization
14     void Start()
15     {
16 
17     }
18 
19     // Update is called once per frame
20     void Update()
21     {
22 
23     }
24 
25 
26     void OnGUI()
27     {
28         string key = "12345678901234567890123456789000"; //必须为32位
29         encrypt = GUILayout.TextField(encrypt, GUILayout.MinWidth(150));
30         GUILayout.Space(5);
31         desEncrypt = GUILayout.TextArea(desEncrypt, GUILayout.Height(200),GUILayout.MinWidth(150));
32 
33         if (GUILayout.Button("加密"))
34         {
35             desEncrypt = DESEncrypt.Encrypt(encrypt, key);
36         }
37         if (GUILayout.Button("解密"))
38         {
39             desEncrypt = DESEncrypt.Decrypt(desEncrypt, key);
40         }
41     }
42 }

或者可以用MD5

 1  /// <summary>
 2         /// MD5加密
 3         /// </summary>
 4         /// <param name="sDataIn"></param>
 5         /// <returns></returns>
 6         public static string GetMD5(string sDataIn)
 7         {
 8             MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
 9             byte[] bytValue, bytHash;
10             bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn + "md");
11             bytHash = md5.ComputeHash(bytValue);
12             md5.Clear();
13             string sTemp = "";
14             for (int i = 0; i < bytHash.Length; i++)
15             {
16                 sTemp += bytHash[i].ToString("X").PadLeft(2, '0');
17             }
18             return sTemp.ToLower();
19         }

收集的一个代码

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 using System.Security.Cryptography;
 5 using System.IO;
 6 namespace GetMD5
 7 {    
 8     class Program
 9     {
10         public static string getFileHash(string filePath)
11         {           
12             try
13             {
14                 FileStream fs = new FileStream(filePath, FileMode.Open);
15                 int len = (int)fs.Length;
16                 byte[] data = new byte[len];
17                 fs.Read(data, 0, len);
18                 fs.Close();
19                 MD5 md5 = new MD5CryptoServiceProvider();
20                 byte[] result = md5.ComputeHash(data);
21                 string fileMD5 = "";
22                 foreach (byte b in result)
23                 {
24                     fileMD5 += Convert.ToString(b, 16);
25                 }
26                 return fileMD5;   
27             }
28             catch (FileNotFoundException e)
29             {
30                 Console.WriteLine(e.Message);
31                 return "";
32             }                                 
33         }
34         static void Main(string[] args)
35         {
36             string md5 = getFileHash("E:\Myweb\cubetest.unity3d");
37             string b = getFileHash("E:\Myweb\testscene.unity3d");
38             Console.WriteLine(md5);
39             Console.WriteLine(b);
40             Console.ReadKey();
41             
42         }
43     }
44 }