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========    /// 
     /// 加密数据     /// 
     /// 要加密的内容     /// key，必须为32位     /// 
          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========    /// 
     /// 解密数据     /// 
     ///      ///      /// 
          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 initialization14     void Start()15     {16 17     }18 19     // Update is called once per frame20     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  /// 
 2         /// MD5加密 3         /// 
 4         ///  5         /// 
      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             try13             {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 }