public static string GetMD5(string fileName)
{
FileStream fileStream = (FileStream)null;
MD5CryptoServiceProvider cryptoServiceProvider = (MD5CryptoServiceProvider)null;
try
{
if (!System.IO.File.Exists(fileName))
{
throw new FileNotFoundException("File not found", fileName);
}
fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
cryptoServiceProvider = new MD5CryptoServiceProvider();
cryptoServiceProvider.ComputeHash((Stream)fileStream);
return(CUtils.BytesToStr(cryptoServiceProvider.Hash));
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
if (cryptoServiceProvider != null)
{
cryptoServiceProvider.Clear();
}
}
}