在Windows 8.1，你现在可以放心无效的SSL证书。你必须要么使用Windows.Web.HttpClient或者如果你想使用System.Net.Http.HttpClient，您可以使用消息处理程序适配器我写道： http://www.nuget.org/packages/WinRtHttpClientHandler

With Windows 8.1, you can now trust invalid SSL certs. You have to either use the Windows.Web.HttpClient or if you want to use the System.Net.Http.HttpClient, you can use the message handler adapter I wrote: http://www.nuget.org/packages/WinRtHttpClientHandler

文档都在GitHub上： https://github.com/onovotny/WinRtHttpClientHandler

Docs are on the GitHub: https://github.com/onovotny/WinRtHttpClientHandler