public static string CreateVerifyCode(int length)
{
string text = string.Empty;
Random random = new Random();
while (text.Length < length)
{
int num = random.Next();
char c;
if (num % 3 == 0)
{
c = (char)(97 + (ushort)(num % 26));
}
else if (num % 4 == 0)
{
c = (char)(65 + (ushort)(num % 26));
}
else
{
c = (char)(48 + (ushort)(num % 10));
}
if (c != '0' && c != 'o' && c != '1' && c != '7' && c != 'l' && c != '9' && c != 'g' && c != 'I')
{
text += c.ToString();
}
}
Globals.RemoveVerifyCookie();
HttpCookie httpCookie = new HttpCookie("VerifyCode");
httpCookie.Value = HiCryptographer.Encrypt(text);
HttpContext.Current.Response.Cookies.Add(httpCookie);
return(text);
}
public static bool CheckVerifyCode(string verifyCode)
{
bool result;
if (HttpContext.Current.Request.Cookies["VerifyCode"] == null)
{
Globals.RemoveVerifyCookie();
result = false;
}
else
{
bool flag = string.Compare(HiCryptographer.Decrypt(HttpContext.Current.Request.Cookies["VerifyCode"].Value), verifyCode, true, CultureInfo.InvariantCulture) == 0;
Globals.RemoveVerifyCookie();
result = flag;
}
return(result);
}