using UnityEngine;
using System.Collections;
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
///
/// AES加密算法
///
public class AESEncryption : MonoBehaviour {
///
/// 默认密钥向量
///
private static byte[] _key1 = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
///
/// AES加密算法
///
/// 明文字符串
/// 密钥
/// 返回加密后的密文字节数组
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;
}
///
/// AES加密算法
///
/// 明文
/// 密钥
/// 返回加密后的密文字节数组
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;
}
///
/// AES解密
///
/// 密文字节数组
/// 密钥
/// 返回解密后的字符串
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 {
///
/// 密钥(系统自动随机的密钥)
///
string keys = "";
///
/// 注册码(玩家输入的注册码)
///
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 initialization
void 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 frame
void Update () {
}
}
