help

using System;
using System.Diagnostics;

namespace TlsGameDemo1
{
    public class Helper
    {
        /// <summary>
        /// 返回处理后的Token(字节数组)
        /// </summary>
        /// <param name="ClientIV"></param>
        /// <param name="ServerIV"></param>
        /// <param name="Token"></param>
        /// <param name="dwMajor"></param>
        /// <param name="dwMinor"></param>
        /// <param name="dwBuildNumber"></param>
        /// <param name="dwRevision4"></param>
        /// <returns></returns>
        public static byte[] GetDecryptedBytesKey(byte[] ClientIV, byte[] ServerIV, byte[] Token, int dwMajor, int dwMinor, int dwBuildNumber, int dwRevision4)
        {
            byte[] ReturnToken = new byte[24];
            Token.CopyTo(ReturnToken, 0);
            ;
            for (int i = 0; i < 24; i++)
            {
                if (i % 4 < 1) ReturnToken[i] += (byte)dwMajor;
                if (i % 4 < 2) ReturnToken[i] += (byte)(dwMinor + i);
                if (i % 4 < 3) ReturnToken[i] += (byte)(dwBuildNumber - i); ;
                ReturnToken[i] += (byte)(i ^ dwRevision4);
                ReturnToken[i] ^= ClientIV[(i + 8) % 16];
                ReturnToken[i] ^= ServerIV[(i + 8) % 16];
            }
            return ReturnToken;
        }

        /// <summary>
        /// 获取处理后的Token(base64字符串)
        /// </summary>
        /// <param name="ClientIV"></param>
        /// <param name="ServerIV"></param>
        /// <param name="Token"></param>
        /// <param name="dwMajor"></param>
        /// <param name="dwMinor"></param>
        /// <param name="dwBuildNumber"></param>
        /// <param name="dwRevision4"></param>
        /// <returns></returns>
        public static string GetDecryptedKey(byte[] ClientIV, byte[] ServerIV, byte[] Token, int dwMajor, int dwMinor, int dwBuildNumber, int dwRevision4)
        {
            byte[] ReturnToken = GetDecryptedBytesKey(ClientIV, ServerIV, Token, dwMajor, dwMinor, dwBuildNumber, dwRevision4);
            return Convert.ToBase64String(ReturnToken);
        }

        /// <summary>
        /// 获取文件版本信息
        /// </summary>
        /// <param name="filepath"></param>
        /// <returns></returns>
        public static string GetFileInfo(string filepath)
        {
            FileVersionInfo file = FileVersionInfo.GetVersionInfo(filepath);
            String Version = file.FileMajorPart + "|" + file.FileMinorPart + "|" + file.FileBuildPart + "|" + file.FilePrivatePart;
            return Version;
        }

        //转16进制字符串
        public static string BytesToString(byte[] bytes)
        {
            //有分隔符的api
            return BitConverter.ToString(bytes);  

            //或者自己遍历
            //string strRet = "";
            //for (int i = 0; i < bytes.Length; i++)
            //{
            //    strRet += bytes[i].ToString("X2");
            //}
            //return strRet;
        }





    }
}