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

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(150));
        GUILayout.Space(5);
        desEncrypt = GUILayout.TextArea(desEncrypt, GUILayout.Height(200),GUILayout.MinWidth(150));

        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 = 0; i < bytHash.Length; i++)
            {
                sTemp += bytHash[i].ToString("X").PadLeft(2, '0');
            }
            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, 0, len);
                fs.Close();
                MD5 md5 = new MD5CryptoServiceProvider();
                byte[] result = md5.ComputeHash(data);
                string fileMD5 = "";
                foreach (byte b in result)
                {
                    fileMD5 += Convert.ToString(b, 16);
                }
                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();
            
        }
    }
}