Windows 应用商店应用程序 - C# - Https 客户端身份验证

Question

我正在尝试在我的应用程序中实现 Https 客户端身份验证，但找不到任何有关如何执行此操作的文档。

查看我想出的 MSDN 文档

// Certificate file in DER format (.cer or .p7b)   
string CountriesFile = @"Assets\https-client.keystore.cer";
StorageFolder InstallationFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
StorageFile file = await InstallationFolder.GetFileAsync(CountriesFile);

// Read the file into a buffer
IBuffer buffer = await Windows.Storage.FileIO.ReadBufferAsync(file);

// Create the Certificate object
Certificate ClientCert = new Certificate(buffer);
HttpBaseProtocolFilter aHBPF = new HttpBaseProtocolFilter();
aHBPF.ClientCertificate = ClientCert;

// Create our http client and send the request.
HttpClient httpClient = new HttpClient(aHBPF);
HttpResponseMessage response = await httpClient.SendRequestAsync(httpRequest, HttpCompletionOption.ResponseHeadersRead).AsTask(cts.Token);

我将这段代码放在一起查看HttpClient、HttpBaseProtocolFilter 和Certificate 的文档。假设我应该拥有所需格式的证书并将文件读入Certificate 类。

上面的代码不起作用并抛出这个错误

An exception of type 'System.ArgumentException' occurred in MyLib.DLL but was not handled in user code
WinRT information: The certificate specified is missing the required private key information.

我已经测试了我的服务器设置，它通过浏览器与客户端身份验证一起工作，这让我得出了两个可能的结论。

1. 证书文件格式错误（虽然我希望在构造 Certificate 类时会引发异常）。
2. 这不是故意的！

有人知道应该怎么做吗？

Answer 1

您似乎必须在用户级别安装证书，然后才能有效地将其用于 Windows 应用商店应用程序中的客户端身份验证

// Needs to be a PKCS12 (p12/pfx) file
string certPath = @"Assets\https-client.keystore.p12";
StorageFile file = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync(certPath);
IBuffer buffer = await FileIO.ReadBufferAsync(file);
string certData = CryptographicBuffer.EncodeToBase64String(buffer);

// Will ask the user if they want this app to install the certificate if its not already installed.
await CertificateEnrollmentManager.UserCertificateEnrollmentManager.ImportPfxDataAsync(
     certData,
     "PASSWORD",
     ExportOption.NotExportable,
     KeyProtectionLevel.NoConsent,
     InstallOptions.None,
     "MyFriendlyName"); 

现在证书已安装，我们可以在证书存储中使用它。

var certificate = await CertificateStores.FindAllAsync(new CertificateQuery() { FriendlyName = "MyFriendlyName" });
ClientCert = certificate.Single();

HttpBaseProtocolFilter aHBPF = new HttpBaseProtocolFilter();
aHBPF.ClientCertificate = ClientCert;

// Create our http client and send the request.
HttpClient httpClient = new HttpClient(aHBPF);
HttpResponseMessage response = await httpClient.SendRequestAsync(httpRequest, HttpCompletionOption.ResponseHeadersRead).AsTask(cts.Token);

我希望能够使证书仅对应用程序可用，如果我找到一种方法，我会更新此答案。