public static string GetFileMd5Hash(string strFileFullPath)
{
// Create a new instance of the MD5CryptoServiceProvider object.
System.IO.FileStream fst = null;
try
{
fst = new System.IO.FileStream(strFileFullPath, System.IO.FileMode.Open);
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
// Convert the input string to a byte array and compute the hash.
byte[] data =md5 .ComputeHash(fst);
// Create a new Stringbuilder to collect the bytes
// and create a string.
StringBuilder sBuilder = new StringBuilder();
// Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
fst.Close();
// Return the hexadecimal string.
return sBuilder.ToString().ToLower();
}
catch (System.Exception ex)
{
if (fst != null)
fst.Close();
return "";
}
finally
{
}
}