unity3d中求字符串md5

    public string GetMD5(string msg)
    {  
        MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();  
        byte[] data = System.Text.Encoding.UTF8.GetBytes(msg);  
        byte[] md5Data = md5.ComputeHash(data, 0, data.Length);  
        md5.Clear();  

        string destString = "";  
        for (int i = 0; i < md5Data.Length; i++) {  
            destString += System.Convert.ToString(md5Data[i], 16).PadLeft(2, '0');  
        }  
        destString = destString.PadLeft(32, '0');  
        return destString;
    }

    public string GetMD5(string msg)
    {  
        System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create(); 
        byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(msg); 
        byte[] hash = md5.ComputeHash(inputBytes); 
        StringBuilder sb = new StringBuilder(); 
        for (int i = 0; i < hash.Length; i++) 
        { 
            sb.Append(hash[i].ToString("X2")); 
        } 
        return sb.ToString(); 
    }