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1301 lines
46 KiB
C#
1301 lines
46 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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namespace POSV.Utils
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{
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public static class DesUtils
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{
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//默认密钥向量
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private static byte[] Keys = { 1 , 5 , 6 , 3 , 8 , 5 , 9 , 0 };
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// 密钥
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private static String KEY_STR = "$QBOSSY$";
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public static string Encrypt(string data)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(KEY_STR.Substring(0 , 8));
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Encoding.UTF8.GetBytes(data);
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DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream , dCSP.CreateEncryptor(rgbKey , rgbIV) , CryptoStreamMode.Write);
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cStream.Write(inputByteArray , 0 , inputByteArray.Length);
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cStream.FlushFinalBlock();
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return SafeBase64Utils.ToBase64(mStream.ToArray());
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}
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catch
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{
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return data;
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}
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}
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public static string Decrypt(string data)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(KEY_STR);
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Convert.FromBase64String(SafeBase64Utils.SafeBase64ToBase64(data));
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DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream , DCSP.CreateDecryptor(rgbKey , rgbIV) , CryptoStreamMode.Write);
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cStream.Write(inputByteArray , 0 , inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Encoding.UTF8.GetString(mStream.ToArray());
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}
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catch
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{
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return data;
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}
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}
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/// <summary>
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/// DES 加密
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/// </summary>
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/// <param name="str">待加密的字符串</param>
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/// <returns></returns>
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public static string EncryptString(string data)
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{
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var desObj = new Des();
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return desObj.strEnc(data , KEY_STR , KEY_STR , KEY_STR);
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}
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/// <summary>
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/// DES 解密
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/// </summary>
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/// <param name="str">待解密的字符串</param>
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/// <returns></returns>
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public static string DecryptString(string str)
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{
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var desObj = new Des();
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return desObj.strDec(str , KEY_STR , KEY_STR , KEY_STR);
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}
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}
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#region 加解密方法及相关函数,兼容Javascript的DES
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public class Des
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{
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public string strEnc(string data , string firstKey , string secondKey , string thirdKey)
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{
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int leng = data.Length;
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string encData = "";
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ArrayList firstKeyBt = null, secondKeyBt = null, thirdKeyBt = null;
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int firstLength = 0, secondLength = 0, thirdLength = 0;
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if (firstKey != null && firstKey != "")
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{
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.Count;
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}
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if (secondKey != null && secondKey != "")
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{
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.Count;
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}
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if (thirdKey != null && thirdKey != "")
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{
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.Count;
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}
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if (leng > 0)
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{
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if (leng < 4)
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{
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int[] bt = strToBt(data);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = bt;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++)
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{
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tempBt = enc(tempBt , (int[])thirdKeyBt[z]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "")
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{
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int[] tempBt;
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int x, y;
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tempBt = bt;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "")
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{
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int[] tempBt;
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int x = 0;
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tempBt = bt;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData = bt64ToHex(encByte);
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}
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else
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{
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int iterator = (leng / 4);
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int remainder = leng % 4;
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int i = 0;
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for (i = 0; i < iterator; i++)
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{
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string tempData = data.Substring(i * 4 + 0 , (i * 4 + 4) - (i * 4 + 0));
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int[] tempByte = strToBt(tempData);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++)
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{
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tempBt = enc(tempBt , (int[])thirdKeyBt[z]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != ""
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&& secondKey != null && secondKey != "")
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{
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int[] tempBt;
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int x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "")
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{
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int[] tempBt;
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int x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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if (remainder > 0)
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{
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String remainderData = data.Substring(iterator * 4 + 0 , leng - (iterator * 4 + 0));
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int[] tempByte = strToBt(remainderData);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++)
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{
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tempBt = enc(tempBt , (int[])thirdKeyBt[z]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != ""
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&& secondKey != null && secondKey != "")
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{
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int[] tempBt;
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int x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++)
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{
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tempBt = enc(tempBt , (int[])secondKeyBt[y]);
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}
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encByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "")
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{
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int[] tempBt;
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int x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++)
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{
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tempBt = enc(tempBt , (int[])firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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}
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}
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return encData;
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}
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/*
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* decrypt the encrypted string to the original string
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*
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* return the original string
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*/
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public string strDec(string data , string firstKey , string secondKey ,
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string thirdKey)
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{
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int leng = data.Length;
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string decStr = "";
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ArrayList firstKeyBt = null, secondKeyBt = null, thirdKeyBt = null;
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int firstLength = 0, secondLength = 0, thirdLength = 0;
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if (firstKey != null && firstKey != "")
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{
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.Count;
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}
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if (secondKey != null && secondKey != "")
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{
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.Count;
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}
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if (thirdKey != null && thirdKey != "")
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{
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.Count;
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}
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int iterator = leng / 16;
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int i = 0;
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for (i = 0; i < iterator; i++)
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{
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String tempData = data.Substring(i * 16 + 0 , (i * 16 + 16) - (i * 16 + 0));
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String strByte = hexToBt64(tempData);
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int[] intByte = new int[64];
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int j = 0;
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for (j = 0; j < 64; j++)
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{
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intByte[j] = int.Parse(strByte.Substring(j , 1));
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}
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int[] decByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null && thirdKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = intByte;
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for (x = thirdLength - 1; x >= 0; x--)
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{
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tempBt = dec(tempBt , (int[])thirdKeyBt[x]);
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}
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for (y = secondLength - 1; y >= 0; y--)
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{
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tempBt = dec(tempBt , (int[])secondKeyBt[y]);
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}
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for (z = firstLength - 1; z >= 0; z--)
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{
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tempBt = dec(tempBt , (int[])firstKeyBt[z]);
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}
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decByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = intByte;
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for (x = secondLength - 1; x >= 0; x--)
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{
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tempBt = dec(tempBt , (int[])secondKeyBt[x]);
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}
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for (y = firstLength - 1; y >= 0; y--)
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{
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tempBt = dec(tempBt , (int[])firstKeyBt[y]);
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}
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decByte = tempBt;
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}
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else
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{
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if (firstKey != null && firstKey != "")
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{
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int[] tempBt;
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int x, y, z;
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tempBt = intByte;
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for (x = firstLength - 1; x >= 0; x--)
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{
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tempBt = dec(tempBt , (int[])firstKeyBt[x]);
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}
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decByte = tempBt;
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}
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}
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}
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decStr += byteToString(decByte);
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}
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return decStr;
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}
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public ArrayList getKeyBytes(string key)
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{
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var keyBytes = new ArrayList();
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int length = key.Length;
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int iterator = (length / 4);
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int remainder = length % 4;
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int i = 0;
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for (i = 0; i < iterator; i++)
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{
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keyBytes.Insert(i , strToBt(key.Substring(i * 4 + 0 , (i * 4 + 4) - (i * 4 + 0))));
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}
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if (remainder > 0)
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{
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// keyBytes[i] = strToBt(key.substring(i*4+0,leng));
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keyBytes.Insert(i , strToBt(key.Substring(i * 4 + 0 , length - (i * 4 + 0))));
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}
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return keyBytes;
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}
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/*
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* chang the string(it's length <= 4) into the bit array
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*
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* return bit array(it's length = 64)
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*/
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public int[] strToBt(String str)
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{
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int leng = str.Length;
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int[] bt = new int[64];
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if (leng < 4)
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{
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int i = 0, j = 0, p = 0, q = 0;
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for (i = 0; i < leng; i++)
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{
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int k = str[i];
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for (j = 0; j < 16; j++)
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{
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int pow = 1, m = 0;
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for (m = 15; m > j; m--)
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{
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pow *= 2;
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}
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// bt.set(16*i+j,""+(k/pow)%2));
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bt[16 * i + j] = (k / pow) % 2;
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}
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}
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for (p = leng; p < 4; p++)
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{
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int k = 0;
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for (q = 0; q < 16; q++)
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{
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int pow = 1, m = 0;
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for (m = 15; m > q; m--)
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{
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pow *= 2;
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}
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// bt[16*p+q]=parseInt(k/pow)%2;
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// bt.add(16*p+q,""+((k/pow)%2));
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bt[16 * p + q] = (k / pow) % 2;
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}
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}
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}
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else
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{
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for (int i = 0; i < 4; i++)
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{
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int k = str[i];
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for (int j = 0; j < 16; j++)
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{
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int pow = 1;
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for (int m = 15; m > j; m--)
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{
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pow *= 2;
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}
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// bt[16*i+j]=parseInt(k/pow)%2;
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// bt.add(16*i+j,""+((k/pow)%2));
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bt[16 * i + j] = (k / pow) % 2;
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}
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}
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}
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return bt;
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}
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/*
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* chang the bit(it's length = 4) into the hex
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*
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* return hex
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*/
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public string bt4ToHex(string binary)
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{
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string hex = "";
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if (binary.Equals("0000" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "0";
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}
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else if (binary.Equals("0001" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "1";
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}
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else if (binary.Equals("0010" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "2";
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}
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else if (binary.Equals("0011" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "3";
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}
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else if (binary.Equals("0100" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "4";
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}
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else if (binary.Equals("0101" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "5";
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}
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else if (binary.Equals("0110" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "6";
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}
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else if (binary.Equals("0111" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "7";
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}
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else if (binary.Equals("1000" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "8";
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}
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else if (binary.Equals("1001" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "9";
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}
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else if (binary.Equals("1010" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "A";
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}
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else if (binary.Equals("1011" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "B";
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}
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else if (binary.Equals("1100" , StringComparison.CurrentCultureIgnoreCase))
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{
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hex = "C";
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}
|
|
else if (binary.Equals("1101" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
hex = "D";
|
|
}
|
|
else if (binary.Equals("1110" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
hex = "E";
|
|
}
|
|
else if (binary.Equals("1111" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
hex = "F";
|
|
}
|
|
|
|
return hex;
|
|
}
|
|
|
|
/*
|
|
* chang the hex into the bit(it's length = 4)
|
|
*
|
|
* return the bit(it's length = 4)
|
|
*/
|
|
public string hexToBt4(string hex)
|
|
{
|
|
string binary = "";
|
|
if (hex.Equals("0" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0000";
|
|
}
|
|
if (hex.Equals("1" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0001";
|
|
}
|
|
if (hex.Equals("2" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0010";
|
|
}
|
|
if (hex.Equals("3" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0011";
|
|
}
|
|
if (hex.Equals("4" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0100";
|
|
}
|
|
if (hex.Equals("5" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0101";
|
|
}
|
|
if (hex.Equals("6" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0110";
|
|
}
|
|
if (hex.Equals("7" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "0111";
|
|
}
|
|
if (hex.Equals("8" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1000";
|
|
}
|
|
if (hex.Equals("9" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1001";
|
|
}
|
|
if (hex.Equals("A" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1010";
|
|
}
|
|
if (hex.Equals("B" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1011";
|
|
}
|
|
if (hex.Equals("C" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1100";
|
|
}
|
|
if (hex.Equals("D" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1101";
|
|
}
|
|
if (hex.Equals("E" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1110";
|
|
}
|
|
if (hex.Equals("F" , StringComparison.CurrentCultureIgnoreCase))
|
|
{
|
|
binary = "1111";
|
|
}
|
|
return binary;
|
|
}
|
|
|
|
/*
|
|
* chang the bit(it's length = 64) into the string
|
|
*
|
|
* return string
|
|
*/
|
|
public string byteToString(int[] byteData)
|
|
{
|
|
string str = "";
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
int count = 0;
|
|
for (int j = 0; j < 16; j++)
|
|
{
|
|
int pow = 1;
|
|
for (int m = 15; m > j; m--)
|
|
{
|
|
pow *= 2;
|
|
}
|
|
count += byteData[16 * i + j] * pow;
|
|
}
|
|
if (count != 0)
|
|
{
|
|
str += "" + (char)(count);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
public string bt64ToHex(int[] byteData)
|
|
{
|
|
string hex = "";
|
|
for (int i = 0; i < 16; i++)
|
|
{
|
|
string bt = "";
|
|
for (int j = 0; j < 4; j++)
|
|
{
|
|
bt += byteData[i * 4 + j];
|
|
}
|
|
hex += bt4ToHex(bt);
|
|
}
|
|
return hex;
|
|
}
|
|
|
|
public string hexToBt64(string hex)
|
|
{
|
|
string binary = "";
|
|
for (int i = 0; i < 16; i++)
|
|
{
|
|
binary += hexToBt4(hex.Substring(i , 1));
|
|
}
|
|
return binary;
|
|
}
|
|
|
|
|
|
public int[] enc(int[] dataByte , int[] keyByte)
|
|
{
|
|
int[,] keys = generateKeys(keyByte);
|
|
int[] ipByte = initPermute(dataByte);
|
|
int[] ipLeft = new int[32];
|
|
int[] ipRight = new int[32];
|
|
int[] tempLeft = new int[32];
|
|
int i = 0, j = 0, k = 0, m = 0, n = 0;
|
|
for (k = 0; k < 32; k++)
|
|
{
|
|
ipLeft[k] = ipByte[k];
|
|
ipRight[k] = ipByte[32 + k];
|
|
}
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
for (j = 0; j < 32; j++)
|
|
{
|
|
tempLeft[j] = ipLeft[j];
|
|
ipLeft[j] = ipRight[j];
|
|
}
|
|
int[] key = new int[48];
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
key[m] = keys[i , m];
|
|
}
|
|
int[] tempRight = xor(pPermute(sBoxPermute(xor(
|
|
expandPermute(ipRight) , key))) , tempLeft);
|
|
for (n = 0; n < 32; n++)
|
|
{
|
|
ipRight[n] = tempRight[n];
|
|
}
|
|
|
|
}
|
|
|
|
int[] finalData = new int[64];
|
|
for (i = 0; i < 32; i++)
|
|
{
|
|
finalData[i] = ipRight[i];
|
|
finalData[32 + i] = ipLeft[i];
|
|
}
|
|
return finallyPermute(finalData);
|
|
}
|
|
|
|
public int[] dec(int[] dataByte , int[] keyByte)
|
|
{
|
|
int[,] keys = generateKeys(keyByte);
|
|
int[] ipByte = initPermute(dataByte);
|
|
int[] ipLeft = new int[32];
|
|
int[] ipRight = new int[32];
|
|
int[] tempLeft = new int[32];
|
|
int i = 0, j = 0, k = 0, m = 0, n = 0;
|
|
for (k = 0; k < 32; k++)
|
|
{
|
|
ipLeft[k] = ipByte[k];
|
|
ipRight[k] = ipByte[32 + k];
|
|
}
|
|
for (i = 15; i >= 0; i--)
|
|
{
|
|
for (j = 0; j < 32; j++)
|
|
{
|
|
tempLeft[j] = ipLeft[j];
|
|
ipLeft[j] = ipRight[j];
|
|
}
|
|
int[] key = new int[48];
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
key[m] = keys[i , m];
|
|
}
|
|
|
|
int[] tempRight = xor(pPermute(sBoxPermute(xor(
|
|
expandPermute(ipRight) , key))) , tempLeft);
|
|
for (n = 0; n < 32; n++)
|
|
{
|
|
ipRight[n] = tempRight[n];
|
|
}
|
|
}
|
|
|
|
int[] finalData = new int[64];
|
|
for (i = 0; i < 32; i++)
|
|
{
|
|
finalData[i] = ipRight[i];
|
|
finalData[32 + i] = ipLeft[i];
|
|
}
|
|
return finallyPermute(finalData);
|
|
}
|
|
|
|
public int[] initPermute(int[] originalData)
|
|
{
|
|
int[] ipByte = new int[64];
|
|
int i = 0, m = 1, n = 0, j, k;
|
|
for (i = 0, m = 1, n = 0; i < 4; i++, m += 2, n += 2)
|
|
{
|
|
for (j = 7, k = 0; j >= 0; j--, k++)
|
|
{
|
|
ipByte[i * 8 + k] = originalData[j * 8 + m];
|
|
ipByte[i * 8 + k + 32] = originalData[j * 8 + n];
|
|
}
|
|
}
|
|
return ipByte;
|
|
}
|
|
|
|
public int[] expandPermute(int[] rightData)
|
|
{
|
|
int[] epByte = new int[48];
|
|
int i, j;
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
if (i == 0)
|
|
{
|
|
epByte[i * 6 + 0] = rightData[31];
|
|
}
|
|
else
|
|
{
|
|
epByte[i * 6 + 0] = rightData[i * 4 - 1];
|
|
}
|
|
epByte[i * 6 + 1] = rightData[i * 4 + 0];
|
|
epByte[i * 6 + 2] = rightData[i * 4 + 1];
|
|
epByte[i * 6 + 3] = rightData[i * 4 + 2];
|
|
epByte[i * 6 + 4] = rightData[i * 4 + 3];
|
|
if (i == 7)
|
|
{
|
|
epByte[i * 6 + 5] = rightData[0];
|
|
}
|
|
else
|
|
{
|
|
epByte[i * 6 + 5] = rightData[i * 4 + 4];
|
|
}
|
|
}
|
|
return epByte;
|
|
}
|
|
|
|
public int[] xor(int[] byteOne , int[] byteTwo)
|
|
{
|
|
// var xorByte = new Array(byteOne.length);
|
|
// for(int i = 0;i < byteOne.length; i ++){
|
|
// xorByte[i] = byteOne[i] ^ byteTwo[i];
|
|
// }
|
|
// return xorByte;
|
|
int[] xorByte = new int[byteOne.Length];
|
|
for (int i = 0; i < byteOne.Length; i++)
|
|
{
|
|
xorByte[i] = byteOne[i] ^ byteTwo[i];
|
|
}
|
|
return xorByte;
|
|
}
|
|
|
|
public int[] sBoxPermute(int[] expandByte)
|
|
{
|
|
|
|
// var sBoxByte = new Array(32);
|
|
int[] sBoxByte = new int[32];
|
|
String binary = "";
|
|
int[,] s1 = {
|
|
{ 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
|
|
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
|
|
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
|
|
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } };
|
|
|
|
/* Table - s2 */
|
|
int[,] s2 = {
|
|
{ 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
|
|
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
|
|
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
|
|
{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } };
|
|
|
|
/* Table - s3 */
|
|
int[,] s3 = {
|
|
{ 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
|
|
{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
|
|
{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
|
|
{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } };
|
|
/* Table - s4 */
|
|
int[,] s4 = {
|
|
{ 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
|
|
{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
|
|
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
|
|
{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } };
|
|
|
|
/* Table - s5 */
|
|
int[,] s5 = {
|
|
{ 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
|
|
{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
|
|
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
|
|
{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } };
|
|
|
|
/* Table - s6 */
|
|
int[,] s6 = {
|
|
{ 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
|
|
{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
|
|
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
|
|
{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } };
|
|
|
|
/* Table - s7 */
|
|
int[,] s7 = {
|
|
{ 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
|
|
{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
|
|
{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
|
|
{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } };
|
|
|
|
/* Table - s8 */
|
|
int[,] s8 = {
|
|
{ 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
|
|
{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
|
|
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
|
|
{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } };
|
|
|
|
for (int m = 0; m < 8; m++)
|
|
{
|
|
int i = 0, j = 0;
|
|
i = expandByte[m * 6 + 0] * 2 + expandByte[m * 6 + 5];
|
|
j = expandByte[m * 6 + 1] * 2 * 2 * 2 + expandByte[m * 6 + 2] * 2
|
|
* 2 + expandByte[m * 6 + 3] * 2 + expandByte[m * 6 + 4];
|
|
switch (m)
|
|
{
|
|
case 0:
|
|
binary = getBoxBinary(s1[i , j]);
|
|
break;
|
|
case 1:
|
|
binary = getBoxBinary(s2[i , j]);
|
|
break;
|
|
case 2:
|
|
binary = getBoxBinary(s3[i , j]);
|
|
break;
|
|
case 3:
|
|
binary = getBoxBinary(s4[i , j]);
|
|
break;
|
|
case 4:
|
|
binary = getBoxBinary(s5[i , j]);
|
|
break;
|
|
case 5:
|
|
binary = getBoxBinary(s6[i , j]);
|
|
break;
|
|
case 6:
|
|
binary = getBoxBinary(s7[i , j]);
|
|
break;
|
|
case 7:
|
|
binary = getBoxBinary(s8[i , j]);
|
|
break;
|
|
}
|
|
|
|
// 1110
|
|
sBoxByte[m * 4 + 0] = int.Parse(binary.Substring(0 , 1));
|
|
sBoxByte[m * 4 + 1] = int.Parse(binary.Substring(1 , 1));
|
|
sBoxByte[m * 4 + 2] = int.Parse(binary.Substring(2 , 1));
|
|
sBoxByte[m * 4 + 3] = int.Parse(binary.Substring(3 , 1));
|
|
}
|
|
return sBoxByte;
|
|
}
|
|
|
|
public int[] pPermute(int[] sBoxByte)
|
|
{
|
|
int[] pBoxPermute = new int[32];
|
|
pBoxPermute[0] = sBoxByte[15];
|
|
pBoxPermute[1] = sBoxByte[6];
|
|
pBoxPermute[2] = sBoxByte[19];
|
|
pBoxPermute[3] = sBoxByte[20];
|
|
pBoxPermute[4] = sBoxByte[28];
|
|
pBoxPermute[5] = sBoxByte[11];
|
|
pBoxPermute[6] = sBoxByte[27];
|
|
pBoxPermute[7] = sBoxByte[16];
|
|
pBoxPermute[8] = sBoxByte[0];
|
|
pBoxPermute[9] = sBoxByte[14];
|
|
pBoxPermute[10] = sBoxByte[22];
|
|
pBoxPermute[11] = sBoxByte[25];
|
|
pBoxPermute[12] = sBoxByte[4];
|
|
pBoxPermute[13] = sBoxByte[17];
|
|
pBoxPermute[14] = sBoxByte[30];
|
|
pBoxPermute[15] = sBoxByte[9];
|
|
pBoxPermute[16] = sBoxByte[1];
|
|
pBoxPermute[17] = sBoxByte[7];
|
|
pBoxPermute[18] = sBoxByte[23];
|
|
pBoxPermute[19] = sBoxByte[13];
|
|
pBoxPermute[20] = sBoxByte[31];
|
|
pBoxPermute[21] = sBoxByte[26];
|
|
pBoxPermute[22] = sBoxByte[2];
|
|
pBoxPermute[23] = sBoxByte[8];
|
|
pBoxPermute[24] = sBoxByte[18];
|
|
pBoxPermute[25] = sBoxByte[12];
|
|
pBoxPermute[26] = sBoxByte[29];
|
|
pBoxPermute[27] = sBoxByte[5];
|
|
pBoxPermute[28] = sBoxByte[21];
|
|
pBoxPermute[29] = sBoxByte[10];
|
|
pBoxPermute[30] = sBoxByte[3];
|
|
pBoxPermute[31] = sBoxByte[24];
|
|
return pBoxPermute;
|
|
}
|
|
|
|
public int[] finallyPermute(int[] endByte)
|
|
{
|
|
int[] fpByte = new int[64];
|
|
fpByte[0] = endByte[39];
|
|
fpByte[1] = endByte[7];
|
|
fpByte[2] = endByte[47];
|
|
fpByte[3] = endByte[15];
|
|
fpByte[4] = endByte[55];
|
|
fpByte[5] = endByte[23];
|
|
fpByte[6] = endByte[63];
|
|
fpByte[7] = endByte[31];
|
|
fpByte[8] = endByte[38];
|
|
fpByte[9] = endByte[6];
|
|
fpByte[10] = endByte[46];
|
|
fpByte[11] = endByte[14];
|
|
fpByte[12] = endByte[54];
|
|
fpByte[13] = endByte[22];
|
|
fpByte[14] = endByte[62];
|
|
fpByte[15] = endByte[30];
|
|
fpByte[16] = endByte[37];
|
|
fpByte[17] = endByte[5];
|
|
fpByte[18] = endByte[45];
|
|
fpByte[19] = endByte[13];
|
|
fpByte[20] = endByte[53];
|
|
fpByte[21] = endByte[21];
|
|
fpByte[22] = endByte[61];
|
|
fpByte[23] = endByte[29];
|
|
fpByte[24] = endByte[36];
|
|
fpByte[25] = endByte[4];
|
|
fpByte[26] = endByte[44];
|
|
fpByte[27] = endByte[12];
|
|
fpByte[28] = endByte[52];
|
|
fpByte[29] = endByte[20];
|
|
fpByte[30] = endByte[60];
|
|
fpByte[31] = endByte[28];
|
|
fpByte[32] = endByte[35];
|
|
fpByte[33] = endByte[3];
|
|
fpByte[34] = endByte[43];
|
|
fpByte[35] = endByte[11];
|
|
fpByte[36] = endByte[51];
|
|
fpByte[37] = endByte[19];
|
|
fpByte[38] = endByte[59];
|
|
fpByte[39] = endByte[27];
|
|
fpByte[40] = endByte[34];
|
|
fpByte[41] = endByte[2];
|
|
fpByte[42] = endByte[42];
|
|
fpByte[43] = endByte[10];
|
|
fpByte[44] = endByte[50];
|
|
fpByte[45] = endByte[18];
|
|
fpByte[46] = endByte[58];
|
|
fpByte[47] = endByte[26];
|
|
fpByte[48] = endByte[33];
|
|
fpByte[49] = endByte[1];
|
|
fpByte[50] = endByte[41];
|
|
fpByte[51] = endByte[9];
|
|
fpByte[52] = endByte[49];
|
|
fpByte[53] = endByte[17];
|
|
fpByte[54] = endByte[57];
|
|
fpByte[55] = endByte[25];
|
|
fpByte[56] = endByte[32];
|
|
fpByte[57] = endByte[0];
|
|
fpByte[58] = endByte[40];
|
|
fpByte[59] = endByte[8];
|
|
fpByte[60] = endByte[48];
|
|
fpByte[61] = endByte[16];
|
|
fpByte[62] = endByte[56];
|
|
fpByte[63] = endByte[24];
|
|
return fpByte;
|
|
}
|
|
|
|
public String getBoxBinary(int i)
|
|
{
|
|
String binary = "";
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
binary = "0000";
|
|
break;
|
|
case 1:
|
|
binary = "0001";
|
|
break;
|
|
case 2:
|
|
binary = "0010";
|
|
break;
|
|
case 3:
|
|
binary = "0011";
|
|
break;
|
|
case 4:
|
|
binary = "0100";
|
|
break;
|
|
case 5:
|
|
binary = "0101";
|
|
break;
|
|
case 6:
|
|
binary = "0110";
|
|
break;
|
|
case 7:
|
|
binary = "0111";
|
|
break;
|
|
case 8:
|
|
binary = "1000";
|
|
break;
|
|
case 9:
|
|
binary = "1001";
|
|
break;
|
|
case 10:
|
|
binary = "1010";
|
|
break;
|
|
case 11:
|
|
binary = "1011";
|
|
break;
|
|
case 12:
|
|
binary = "1100";
|
|
break;
|
|
case 13:
|
|
binary = "1101";
|
|
break;
|
|
case 14:
|
|
binary = "1110";
|
|
break;
|
|
case 15:
|
|
binary = "1111";
|
|
break;
|
|
}
|
|
return binary;
|
|
}
|
|
|
|
/*
|
|
* generate 16 keys for xor
|
|
*
|
|
*/
|
|
public int[,] generateKeys(int[] keyByte)
|
|
{
|
|
int[] key = new int[56];
|
|
int[,] keys = new int[16 , 48];
|
|
|
|
int[] loop = new int[] { 1 , 1 , 2 , 2 , 2 , 2 , 2 , 2 , 1 , 2 , 2 , 2 , 2 , 2 , 2 , 1 };
|
|
|
|
for (int x = 0; x < 7; x++)
|
|
{
|
|
for (int y = 0, k = 7; y < 8; y++, k--)
|
|
{
|
|
key[x * 8 + y] = keyByte[8 * k + x];
|
|
}
|
|
}
|
|
|
|
int i = 0;
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
int tempLeft = 0;
|
|
int tempRight = 0;
|
|
for (int j = 0; j < loop[i]; j++)
|
|
{
|
|
tempLeft = key[0];
|
|
tempRight = key[28];
|
|
for (int k = 0; k < 27; k++)
|
|
{
|
|
key[k] = key[k + 1];
|
|
key[28 + k] = key[29 + k];
|
|
}
|
|
key[27] = tempLeft;
|
|
key[55] = tempRight;
|
|
}
|
|
|
|
int[] tempKey = new int[48];
|
|
tempKey[0] = key[13];
|
|
tempKey[1] = key[16];
|
|
tempKey[2] = key[10];
|
|
tempKey[3] = key[23];
|
|
tempKey[4] = key[0];
|
|
tempKey[5] = key[4];
|
|
tempKey[6] = key[2];
|
|
tempKey[7] = key[27];
|
|
tempKey[8] = key[14];
|
|
tempKey[9] = key[5];
|
|
tempKey[10] = key[20];
|
|
tempKey[11] = key[9];
|
|
tempKey[12] = key[22];
|
|
tempKey[13] = key[18];
|
|
tempKey[14] = key[11];
|
|
tempKey[15] = key[3];
|
|
tempKey[16] = key[25];
|
|
tempKey[17] = key[7];
|
|
tempKey[18] = key[15];
|
|
tempKey[19] = key[6];
|
|
tempKey[20] = key[26];
|
|
tempKey[21] = key[19];
|
|
tempKey[22] = key[12];
|
|
tempKey[23] = key[1];
|
|
tempKey[24] = key[40];
|
|
tempKey[25] = key[51];
|
|
tempKey[26] = key[30];
|
|
tempKey[27] = key[36];
|
|
tempKey[28] = key[46];
|
|
tempKey[29] = key[54];
|
|
tempKey[30] = key[29];
|
|
tempKey[31] = key[39];
|
|
tempKey[32] = key[50];
|
|
tempKey[33] = key[44];
|
|
tempKey[34] = key[32];
|
|
tempKey[35] = key[47];
|
|
tempKey[36] = key[43];
|
|
tempKey[37] = key[48];
|
|
tempKey[38] = key[38];
|
|
tempKey[39] = key[55];
|
|
tempKey[40] = key[33];
|
|
tempKey[41] = key[52];
|
|
tempKey[42] = key[45];
|
|
tempKey[43] = key[41];
|
|
tempKey[44] = key[49];
|
|
tempKey[45] = key[35];
|
|
tempKey[46] = key[28];
|
|
tempKey[47] = key[31];
|
|
int m;
|
|
switch (i)
|
|
{
|
|
case 0:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[0 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 1:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[1 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 2:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[2 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 3:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[3 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 4:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[4 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 5:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[5 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 6:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[6 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 7:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[7 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 8:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[8 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 9:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[9 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 10:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[10 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 11:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[11 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 12:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[12 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 13:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[13 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 14:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[14 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
case 15:
|
|
for (m = 0; m < 48; m++)
|
|
{
|
|
keys[15 , m] = tempKey[m];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return keys;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|