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Get MD5 Hash of any file

/ Published in: C#
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  1. public static string GetMD5Hash(string pathName)
  2.   {
  3.    string strResult = "";
  4.    string strHashData = "";
  5.  
  6.    byte[] arrbytHashValue;
  7.    System.IO.FileStream oFileStream = null;
  8.  
  9.    System.Security.Cryptography.MD5CryptoServiceProvider oMD5Hasher=
  10.               new System.Security.Cryptography.MD5CryptoServiceProvider();
  11.  
  12.    try
  13.    {
  14.     oFileStream = GetFileStream(pathName);
  15.     arrbytHashValue = oMD5Hasher.ComputeHash(oFileStream);
  16.     oFileStream.Close();
  17.  
  18.     strHashData = System.BitConverter.ToString(arrbytHashValue);
  19.     strHashData = strHashData.Replace("-", "");
  20.     strResult = strHashData;
  21.    }
  22.    catch(System.Exception ex)
  23.    {
  24.     System.Windows.Forms.MessageBox.Show(ex.Message, "Error!", 
  25.                System.Windows.Forms.MessageBoxButtons.OK, 
  26.                System.Windows.Forms.MessageBoxIcon.Error, 
  27.                System.Windows.Forms.MessageBoxDefaultButton.Button1);
  28.    }
  29.  
  30.    return(strResult);
  31.   }

URL: http://www.codeproject.com/KB/files/dt_file_hasher.aspx

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