public static string StringToMD5Hash(string inputString) ...{ MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); byte[] encryptedBytes = md5.ComputeHash(Encoding.ASCII.GetBytes(inputString)); StringBuilder sb = new StringBuilder(); for (int i = 0; i < encryptedBytes.Length; i++) ...{ sb.AppendFormat("{0:x2}", encryptedBytes[i]); } return sb.ToString(); }using System.Security.Cryptography;using System.Text;