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从 Web 浏览器控件打开证书信息

发布于 2024-08-30 05:00:03 字数 60 浏览 7 评论 0原文

有谁知道如何从 WebBrowser 控件打开基于 SSL 的“证书信息”屏幕？

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傲娇萝莉攻 2024-09-06 05:00:03

这可以通过使用名为 X509Certificate2UI 的类来实现。

要使此类可供您使用，您需要添加对 System.Security.dll 的引用

在 X509Certificate2UI 类中，您有一个名为 DisplayCertificate()< 的方法/code> 接受 X509Certificate2 对象作为参数。调用时，此方法会显示一个对话框，其中显示所有证书信息（包括链接），与 IE 中的对话框完全相同。

Web浏览器控件只能返回一个X509Certificate，然后可以将其传递到X509Certificate2类的构造函数中。

所以代码看起来像这样：

//includes on top
using System.Security;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;

//Do webrequest to get info on secure site
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://securesite.com");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
response.Close();

//retrieve the ssl cert and assign it to an X509Certificate object
X509Certificate cert = request.ServicePoint.Certificate;

//convert the X509Certificate to an X509Certificate2 object by passing it into the constructor
X509Certificate2 cert2 = new X509Certificate2(cert);

//display the cert dialog box
X509Certificate2UI.DisplayCertificate(cert2);

This can be achieved by using a class called X509Certificate2UI.

To make this class avalable to you, you need to add a reference to System.Security.dll

In the X509Certificate2UI class you have a meyhod called DisplayCertificate() which takes an X509Certificate2 object as a parameter. When invoked, this method shows a dialog box displaying all cert information including chaining, exactly the same as the dialog box you will find in IE.

The webbrowser control can only return a X509Certificate which can then be passed into the constructor of the X509Certificate2 class.

So the code looks as such:

//includes on top
using System.Security;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;

//Do webrequest to get info on secure site
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://securesite.com");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
response.Close();

//retrieve the ssl cert and assign it to an X509Certificate object
X509Certificate cert = request.ServicePoint.Certificate;

//convert the X509Certificate to an X509Certificate2 object by passing it into the constructor
X509Certificate2 cert2 = new X509Certificate2(cert);

//display the cert dialog box
X509Certificate2UI.DisplayCertificate(cert2);

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就像说晚安 2024-09-06 05:00:03

如果我理解正确，您应该不在 WebBrowser 中搜索此信息，而是在 CryptoAPI 中搜索。 Cryptui.dll 中存在诸如 CryptUIDlgSelectCertificateFromStore、CryptUIDlgViewContext 之类的函数。 WINTRUST.DLL中有一些函数，例如WinVerifyTrustEx，也可以显示一些对话框。

您能否准确描述我如何在 Internet Explore 中显示您想要的对话框？您是否已使用 WebBrowser 控件工作，那么您可以在 BeforeNavigate2 事件内部跟踪 Internet Explorer 具有的 url。有了这个 URL，您就可以下载 SSL 证书并在 CryptUIDlgViewContext 方面进行显示。要下载或获取证书，您可以使用带有 INTERNET_OPTION_SERVER_CERT_CHAIN_CONTEXT 或 INTERNET_OPTION_CLIENT_CERT_CONTEXT 标志的 InternetQueryOption。可以是来自 INTERNET_OPTION_SECURITY_CERTIFICATE、INTERNET_OPTION_SECURITY_CERTIFICATE_STRUCT 的信息（请参阅 http://support.microsoft.com/kb/ 251347）对你来说就足够了。