public static void Registration(string SN, string licenseCode)
{
try
{
string s1 = SecurityHelper.DESDecrypt(licenseCode);
SecurityHelper se = new SecurityHelper();
string s2 = se.Decrypt3DESString(SN, licenseCode.Substring(3, 32));
if (s2 != SecurityHelper.MD5String16(SoftRegHelper.machineCode) || s1 != SoftRegHelper.machineCode)
{
throw new Exception("请购买正版获取序列号和授权码！");
}
RegistryHelper registry = new RegistryHelper(CommonHelper.SoftwareName);
if (!registry.IsRegeditExit("IsAuthorization"))
{
registry.WTRegedit("IsAuthorization", SecurityHelper.DESEncrypt("TRUE"));
}
}
catch (Exception ex)
{
throw new Exception("软件注册失败：" + ex.Message);
}
}
/// <summary>
/// 生成验证码 mvc File使用 键session_verifycode
/// </summary>
/// <returns></returns>
public static byte[] GetVerifyCode(int codeLength = 4, bool isSimple = false)
{
int codeW = 20 * codeLength;
int codeH = 30;
int fontSize = 16;
string chkCode = string.Empty;
//颜色列表，用于验证码、噪线、噪点
Color[] color = { Color.Black, Color.Red, Color.Blue, Color.Green, Color.Orange, Color.Brown, Color.Brown, Color.DarkBlue };
//字体列表，用于验证码
string[] font = { "Times New Roman" };
//验证码的字符集，去掉了一些容易混淆的字符
const string characterA = "2345689abde";
const string characterB = "fhkmnrxyABCDEFGHJKLMNPRSTWXY";
char[] character;
if (isSimple)
{
character = characterA.ToCharArray();
}
else
{
character = characterB.ToCharArray();
}
Random rnd = new Random();
//生成验证码字符串
for (int i = 0; i < codeLength; i++)
{
chkCode += character[rnd.Next(character.Length)];
}
//写入Session、验证码加密
WebHelper.WriteSession("session_verifycode", SecurityHelper.MD5String16(chkCode.ToUpper()));//一般处理程序实现IRequiresSessionState
//创建画布
Bitmap bmp = new Bitmap(codeW, codeH);
Graphics g = Graphics.FromImage(bmp);
g.Clear(Color.White);
//画噪线
for (int i = 0; i < 1; i++)
{
int x1 = rnd.Next(codeW);
int y1 = rnd.Next(codeH);
int x2 = rnd.Next(codeW);
int y2 = rnd.Next(codeH);
Color clr = color[rnd.Next(color.Length)];
g.DrawLine(new Pen(clr), x1, y1, x2, y2);
}
//画验证码字符串
for (int i = 0; i < chkCode.Length; i++)
{
string fnt = font[rnd.Next(font.Length)];
Font ft = new Font(fnt, fontSize);
Color clr = color[rnd.Next(color.Length)];
g.DrawString(chkCode[i].ToString(), ft, new SolidBrush(clr), (float)i * 18, (float)0);
}
//将验证码图片写入内存流，并将其以 "image/Png" 格式输出
MemoryStream ms = new MemoryStream();
try
{
bmp.Save(ms, ImageFormat.Png);
return(ms.ToArray());
}
catch (Exception)
{
return(null);
}
finally
{
g.Dispose();
bmp.Dispose();
}
}
/// <summary>
/// 检查验证码是否正确
/// </summary>
/// <param name="inputVerifyCode"></param>
/// <returns></returns>
public static bool IsCheckVerifyCode(string inputVerifyCode)
{
HttpContext context = HttpContext.Current;
if (inputVerifyCode.IsNullEmpty() || context.Session["session_verifycode"].ToString().IsNullEmpty() || SecurityHelper.MD5String16(inputVerifyCode.ToUpper()) != context.Session["session_verifycode"].ToString())
{
return(false);
}
return(true);
}