Unity中添加AES加密

来源：互联网发布：苏州大学网络网上缴费编辑：程序博客网时间：2024/05/22 03:01

using UnityEngine;using System.Collections;using System;using System.IO;using System.Security.Cryptography;using System.Text;/// <summary>/// AES加密算法/// </summary>public class AESEncryption : MonoBehaviour {    /// <summary>    /// 默认密钥向量    /// </summary>    private static byte[] _key1 = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };    /// <summary>    /// AES加密算法    /// </summary>    /// <param name="plainText">明文字符串</param>    /// <param name="strKey">密钥</param>    /// <returns>返回加密后的密文字节数组</returns>    public static byte[] AESEncrypt(string plainText, string strKey)    {        //分组加密算法        SymmetricAlgorithm des = Rijndael.Create();        des.Padding = PaddingMode.None;        byte[] inputByteArray = Encoding.UTF8.GetBytes(plainText);//得到需要加密的字节数组        int covering = (inputByteArray.Length + 1) % 16;        int coveringLength = 0;        if (covering != 0)//手动补位        {            coveringLength = 16 - covering;        }        int dataLength = (inputByteArray.Length + 1) + coveringLength;        byte[] dataArray = new byte[dataLength];        Buffer.BlockCopy(inputByteArray, 0, dataArray, 0, inputByteArray.Length);        dataArray[dataArray.Length - 1] = Convert.ToByte(coveringLength);        //设置密钥及密钥向量        des.Key = Encoding.UTF8.GetBytes(strKey);        des.IV = _key1;        MemoryStream ms = new MemoryStream();        CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);        cs.Write(dataArray, 0, dataArray.Length);        cs.FlushFinalBlock();        byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组        cs.Close();        ms.Close();        return cipherBytes;    }    /// <summary>    /// AES加密算法    /// </summary>    /// <param name="inputByteArray">明文</param>    /// <param name="strKey">密钥</param>    /// <returns>返回加密后的密文字节数组</returns>    public static byte[] AESEncrypt(byte[] inputByteArray, string strKey)    {        //分组加密算法        SymmetricAlgorithm des = Rijndael.Create();        des.Padding = PaddingMode.None;        int covering = (inputByteArray.Length + 1) % 16;        int coveringLength = 0;        if (covering != 0)//手动补位        {            coveringLength = 16 - covering;        }        int dataLength = (inputByteArray.Length + 1) + coveringLength;        byte[] dataArray = new byte[dataLength];        Buffer.BlockCopy(inputByteArray, 0, dataArray, 0, inputByteArray.Length);        dataArray[dataArray.Length - 1] = Convert.ToByte(coveringLength);        //设置密钥及密钥向量        des.Key = Encoding.UTF8.GetBytes(strKey);        des.IV = _key1;        MemoryStream ms = new MemoryStream();        CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);        cs.Write(dataArray, 0, dataArray.Length);        cs.FlushFinalBlock();        byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组        cs.Close();        ms.Close();        return cipherBytes;    }    /// <summary>    /// AES解密    /// </summary>    /// <param name="cipherText">密文字节数组</param>    /// <param name="strKey">密钥</param>    /// <returns>返回解密后的字符串</returns>    public static byte[] AESDecrypt(byte[] cipherText, string strKey)    {        SymmetricAlgorithm des = Rijndael.Create();        des.Key = Encoding.UTF8.GetBytes(strKey);        des.IV = _key1;        des.Padding = PaddingMode.None;        byte[] decryptBytes = new byte[cipherText.Length];        MemoryStream ms = new MemoryStream(cipherText);        CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read);        cs.Read(decryptBytes, 0, decryptBytes.Length);        int length = Convert.ToInt32(decryptBytes.Length - 1);        byte[] databytes = new byte[decryptBytes.Length - 1 - length];        Buffer.BlockCopy(decryptBytes, 0, databytes, 0, databytes.Length);        cs.Close();        ms.Close();        return databytes;    }}

using UnityEngine;using System.Collections;public class StartGame : MonoBehaviour {    /// <summary>    /// 密钥(系统自动随机的密钥)    /// </summary>    string keys = "";    /// <summary>    /// 注册码(玩家输入的注册码)    /// </summary>    string inputLicense = "";    string numChar = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";    void Awake()    {        #region 获取随机秘钥        for (int i = 0; i < 16; i++)        {            keys += numChar.Substring(Random.Range(0, 61), 1);        }        Debug.Log("keys: " + keys);        #endregion    }// Use this for initializationvoid Start ()    {        #region 系统根据密钥自动得出的注册码        string outLicense = "";        for (int i = 0; i < 16; i++)        {            outLicense += AESEncryption.AESEncrypt("AEROSPACE", keys)[i].ToString("X");        }        Debug.Log("outLicense: " + outLicense);        #endregion        #region 注册码进行对比        if (inputLicense == outLicense)        {            Debug.Log("验证通过");                    }        else        {            Debug.Log("验证未通过");        }        #endregion    }// Update is called once per framevoid Update () {}}

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