How to work with SSL-protected sites

If you deal with SSL-protected sites a couple of methods can be useful:

public void ConfigureSSL()
{
    ServicePointManager.ServerCertificateValidationCallback = CertChecker;
}

private bool CertChecker(object sender, X509Certificate certificate,
                    X509Chain chain, SslPolicyErrors errors)
{
    return certificate.Subject == "Certificate Subject for required site";
}

Call ConfigureSSL() before to request some page.