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How to encrypt and decrypt a file by using Visual C#

using System;
using System.IO;
using System.Security;
using System.Security.Cryptography;
using System.Runtime.InteropServices;
using System.Text;

namespace CSEncryptDecrypt
{
   class Class1
   {
      //  Call this function to remove the key from memory after use for security
      [System.Runtime.InteropServices.DllImport("KERNEL32.DLL", EntryPoint="RtlZeroMemory")]
      public static extern bool ZeroMemory(IntPtr Destination, int Length);
  
      // Function to Generate a 64 bits Key.
      static string GenerateKey() 
      {
         // Create an instance of Symetric Algorithm. Key and IV is generated automatically.
         DESCryptoServiceProvider desCrypto =(DESCryptoServiceProvider)DESCryptoServiceProvider.Create();

         // Use the Automatically generated key for Encryption. 
         return ASCIIEncoding.ASCII.GetString(desCrypto.Key);
      }

      static void EncryptFile(string sInputFilename,
         string sOutputFilename, 
         string sKey) 
      {
         FileStream fsInput = new FileStream(sInputFilename, 
            FileMode.Open, 
            FileAccess.Read);

         FileStream fsEncrypted = new FileStream(sOutputFilename, 
            FileMode.Create, 
            FileAccess.Write);
         DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
         DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
         DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
         ICryptoTransform desencrypt = DES.CreateEncryptor();
         CryptoStream cryptostream = new CryptoStream(fsEncrypted, 
            desencrypt, 
            CryptoStreamMode.Write); 

         byte[] bytearrayinput = new byte[fsInput.Length];
         fsInput.Read(bytearrayinput, 0, bytearrayinput.Length);
         cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length);
         cryptostream.Close();
         fsInput.Close();
         fsEncrypted.Close();
      }

      static void DecryptFile(string sInputFilename, 
         string sOutputFilename,
         string sKey)
      {
         DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
         //A 64 bit key and IV is required for this provider.
         //Set secret key For DES algorithm.
         DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
         //Set initialization vector.
         DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);

         //Create a file stream to read the encrypted file back.
         FileStream fsread = new FileStream(sInputFilename, 
            FileMode.Open, 
            FileAccess.Read);
         //Create a DES decryptor from the DES instance.
         ICryptoTransform desdecrypt = DES.CreateDecryptor();
         //Create crypto stream set to read and do a 
         //DES decryption transform on incoming bytes.
         CryptoStream cryptostreamDecr = new CryptoStream(fsread, 
            desdecrypt,
            CryptoStreamMode.Read);
         //Print the contents of the decrypted file.
         StreamWriter fsDecrypted = new StreamWriter(sOutputFilename);
         fsDecrypted.Write(new StreamReader(cryptostreamDecr).ReadToEnd());
         fsDecrypted.Flush();
         fsDecrypted.Close();
      } 

      static void Main()
      {
         // Must be 64 bits, 8 bytes.
         // Distribute this key to the user who will decrypt this file.
         string sSecretKey;
         
         // Get the Key for the file to Encrypt.
         sSecretKey = GenerateKey();

         // For additional security Pin the key.
         GCHandle gch = GCHandle.Alloc( sSecretKey,GCHandleType.Pinned );
         
         // Encrypt the file.        
         EncryptFile(@"C:\MyData.txt", 
            @"C:\Encrypted.txt", 
            sSecretKey);

         // Decrypt the file.
         DecryptFile(@"C:\Encrypted.txt", 
            @"C:\Decrypted.txt", 
            sSecretKey);

         // Remove the Key from memory. 
         ZeroMemory(gch.AddrOfPinnedObject(), sSecretKey.Length * 2);
         gch.Free();
      }
   }
}

Use Google to get Serial No of any Software

Most of the people downloading trial and using it, only after the expiration of trial they try for crack, Serial No, Keygen, Patch....

But many don't known where to get Serial No, Some websites may be infect your system with Trojan horse, Viruses, Ad ware, Spy ware....

So for beginners this is a simply way to find hack with less effort and it saves time to, But make sure you have anti virus activated before trying to get some Serials, Patches to avoid data loss

Just follow the steps as instructed below

1) Go to http://www.google.com
2) type this syntax in search bar " 94FBR"
3) Replace Product name with desired software and leave a space then type 94FBR
4) Press enter, thats it

Now you receive Many pages which contains Serial no, Crack, Patches....

Just make a try, this simple trick works for many people

                                 888                  ,8,"88e    e88 88e     d88   e88 88e   
 e88'888  e88'888  e88 88e   e88 888  ,e e,  888,8,    "  888D  d888 888b   d888  d888 888b  
d888  '8 d888  '8 d888 888b d888 888 d88 88b 888 "        88P  C8888 8888D d"888 C8888 8888D 
Y888   , Y888   , Y888 888P Y888 888 888   , 888         ,*"    Y888 888P    888  Y888 888P  
 "88,e8'  "88,e8'  "88 88"   "88 888  "YeeP" 888       8888888   "88 88"     888   "88 88"   

VIsual Studio 2010 Ultimate

Microsoft Visual Studio 2010 Ultimate is the comprehensive suite of application lifecycle management tools for teams to ensure quality results, from design to deployment. Whether you're creating new solutions or enhancing existing applications, Visual Studio 2010 Ultimate lets you bring your vision to life targeting an increasing number of platforms and technologies—including cloud and parallel computing.

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