c# 账号密码加密, 写入读取ini文件

[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retvalue, int siz, string inipath);
[DllImport("kernel32")]
private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
 

private static string m_iniPath = System.Windows.Forms.Application.StartupPath + "\\config.ini";//配置路径

//写INI文件
public static void IniWriteValue(string Section, string Key, string Value)
{

WritePrivateProfileString(Section, Key, Value, m_iniPath);

}

//读取INI文件指定
public static string IniReadValue(string Section, string Key)

{
StringBuilder temp = new StringBuilder(255);

int i = GetPrivateProfileString(Section, Key, "", temp, 255, m_iniPath);

return temp.ToString();

}

以上为Config类文件内。

Config.IniWriteValue("UserName", "account", account);//写入密码不加密
<span style="font-family: 微软雅黑; font-size: 14px; line-height: 21px;">       private string passwdKey = "asfafagsgdsgkhk"; //加密的秘钥</span>
StringBuilder ps = new StringBuilder();
for (int i = 0; i < passwd.Length; ++i)
{
int c = passwd[i] ^ passwdKey[i]; //异或加密,使用int存储
ps.Append(c + " ");
}
Config.IniWriteValue("PassWord", "passwd", ps.ToString());
<pre name="code" class="csharp"><div style="font-family: 微软雅黑; font-size: 14px; line-height: 21px;">            string account = Config.IniReadValue("UserName", "account"); </div><div style="font-family: 微软雅黑; font-size: 14px; line-height: 21px;">            string passwd = Config.IniReadValue("PassWord", "passwd");</div> //读取密码需要解密
               string[] ps = passwd.Split(' ');
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < ps.Length; i++)
                {
                    sb.Append((char)(passwdKey[i] ^ int.Parse(ps[i]))); //异或解密， 转换成char
                }  
passwd = sb.ToString();