Code Snippet - MD5 encryption in C#

private string encryptString(string strToEncrypt)
{
System.Text.UTF8Encoding ue = new System.Text.UTF8Encoding();
byte[] bytes = ue.GetBytes(strToEncrypt);

// encrypt bytes
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new
System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] hashBytes = md5.ComputeHash(bytes);

// Convert the encrypted bytes back to a string (base 16)
string hashString = "";

for( int i=0; i < hashBytes.Length; i++ )
{
hashString += Convert.ToString(hashBytes[i],16).PadLeft(2,'0');
}

return hashString.PadLeft(32,'0');
}