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, , _EncryptArray.Length);

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

        return UTF8Encoding.UTF8.GetString(resultArray);

    }

    #endregion

}

 编写测试代码

 using UnityEngine;
 using System.Collections;
 using System;
 using System.Security.Cryptography;
 using System.Text;
 public class da : MonoBehaviour
 {

     //需要加密的字符串
     string encrypt = string.Empty;
     //加密后的字符串
     string desEncrypt = string.Empty;
     // Use this for initialization
     void Start()
     {

     }

     // Update is called once per frame
     void Update()
     {

     }

     void OnGUI()
     {
         string key = "12345678901234567890123456789000"; //必须为32位
         encrypt = GUILayout.TextField(encrypt, GUILayout.MinWidth());
         GUILayout.Space();
         desEncrypt = GUILayout.TextArea(desEncrypt, GUILayout.Height(),GUILayout.MinWidth());

         if (GUILayout.Button("加密"))
         {
             desEncrypt = DESEncrypt.Encrypt(encrypt, key);
         }
         if (GUILayout.Button("解密"))
         {
             desEncrypt = DESEncrypt.Decrypt(desEncrypt, key);
         }
     }
 }

或者可以用MD5

  /// <summary>
         /// MD5加密
         /// </summary>
         /// <param name="sDataIn"></param>
         /// <returns></returns>
         public static string GetMD5(string sDataIn)
         {
             MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
             byte[] bytValue, bytHash;
             bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn + "md");
             bytHash = md5.ComputeHash(bytValue);
             md5.Clear();
             string sTemp = "";
             for (int i = ; i < bytHash.Length; i++)
             {
                 sTemp += bytHash[i].ToString("X").PadLeft(, '');
             }
             return sTemp.ToLower();
         }

收集的一个代码

 using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Security.Cryptography;
 using System.IO;
 namespace GetMD5
 {
     class Program
     {
         public static string getFileHash(string filePath)
         {
             try
             {
                 FileStream fs = new FileStream(filePath, FileMode.Open);
                 int len = (int)fs.Length;
                 byte[] data = new byte[len];
                 fs.Read(data, , len);
                 fs.Close();
                 MD5 md5 = new MD5CryptoServiceProvider();
                 byte[] result = md5.ComputeHash(data);
                 string fileMD5 = "";
                 foreach (byte b in result)
                 {
                     fileMD5 += Convert.ToString(b, );
                 }
                 return fileMD5;
             }
             catch (FileNotFoundException e)
             {
                 Console.WriteLine(e.Message);
                 return "";
             }
         }
         static void Main(string[] args)
         {
             string md5 = getFileHash("E:\\Myweb\\cubetest.unity3d");
             string b = getFileHash("E:\\Myweb\\testscene.unity3d");
             Console.WriteLine(md5);
             Console.WriteLine(b);
             Console.ReadKey();

         }
     }
 }