您对 Windows 身份基础有何看法？
在了解 WCF 安全性时，我还了解到，作为替代方案，我们还可以使用 WIF 处理身份。我有很多东西要学，所以我不想把时间投入到几个月后就会消失的东西上。
因此，您认为：
它会一直存在还是只是昙花一现？
值得学习吗？
谢谢
While learning about WCF security I've also read that as an alternative we could also use WIF deal with identities. I have a lot of stuff to learn, so I don't want to invest my time in something that will go away in a few months time.
Thus, in your opinion:
is it here to stay or is it just a flash in the pan?
Is it worth learning?
thank you
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基于声明的身份已经存在相当长一段时间了，但在 WIF 之前，进入门槛相当高。您必须处理许多低级细节。 WIF 让这一切变得更加容易。学习它的“成本”并不是很高，并且有相当多的内容可以帮助您快速提升（身份培训套件、模式和实践声明指南等）。无论如何，您不需要投入大量时间。
除此之外，WIF 实现的基于声明的身份是基于标准的（WS-Trust/WS-Fed、SAML），因此它不仅仅是 Microsoft 的事情。许多其他平台也支持相同的并且互操作更简单。
最后，WIF 是 .NET 框架的一部分（即使目前需要单独下载）。这意味着它会存活相当长的时间:-)。
那么，对于你的问题。在我看来，根据我与各种规模和类型的客户的所有互动，它非常值得学习和使用，而且它会一直存在。但是，当然，这是我个人的意见。
Claims based identity has been around for quite some time, but the bar of entry was pretty high before WIF. You had to deal with lots of low level details. WIF makes all these so much easier. The "cost" of learning it is not very high and there's quite a bit of content to help you ramp up fast (the identity training kit, the patterns & practices claims guide, etc). You won;t need to invest a lot of time anyway.
In addition to that, claims based identity as implemented by WIF is standards based (WS-Trust/WS-Fed, SAML), so it is not just a Microsoft only thing. Many other platforms support the same and interop is simpler.
Finally, WIF is part of the .NET framework (even if it is a separate download for now). That means it will live quite some time :-).
So, to your questions. In my opinion, based on all the interactions I had with customers of all sizes and kinds, it is very much worth learning and using it, and it is here to stay. But, of course, this is my personal opinion.