asp.net开发中利用MD5加密(转换后为32位字节长度)

//利用MD5加密(转换后为32位字节长度)
  public static string StringToMD5Hash(string inputString)
  {
            System.Security.Cryptography.MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
   byte[] encryptedBytes=md5.ComputeHash(System.Text.Encoding.ASCII.GetBytes(inputString));
   System.Text.StringBuilder sb=new StringBuilder();
   for(int i=0;i<encryptedBytes.Length;i++)
   {
    sb.AppendFormat("{0:x2}",encryptedBytes[i]);
   }
   return sb.ToString();
  }