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Differences Between the Security Rule Sets
In my last post I talked about the two different security rule sets supported by the v4 CLR . At a high level, level 1 is the v2.0 security transparency model, and level 2 encompasses the updated v4 security transparency model. Digging down a little deeper, it’s interesting to look at some...
12 Nov 2009
MD5 on Silverlight
Reid Borsuk, an SDE/T on the CLR security team, has released a fully transparent implementation of the MD5 hash algorithm to the MSDN Code Gallery . Since the code is entirely transparent, it can be used as part of a Silverlight application that needs to compute MD5 hashes in order to interop with...
9 Dec 2008
Dr. Dobbs Looks at Silverlight Security
Dino Esposito has an article in the March Dr. Dobb's Journal taking a look at the Silverlight platform from a security perspective: The Silverlight 2.0 Security Model . The second half in particular boils down some of the details of the transparency model used for security enforcement in Silverlight...
9 Jul 2008
Silverlight Security Cheat Sheet
Over the last week we took a look at the new Silverlight security model. When you're writing a Silverlight application though, there's a lot of information there that you may not want to wade through to get yourself unblocked. Here's a quick cheat sheet highlighting the important points that you'll need...
14 May 2007
Silverlight Security III: Inheritance
Over the last few days we've looked at the basics of the CoreCLR security model in Silverlight , and how to tell which platform APIs are available for applications to call . Let's wrap up this mini-series on CoreCLR security by looking at how the CoreCLR transparency model interacts with inheritance...
11 May 2007
Silverlight Security II: What Makes a Method Critical
Yesterday we talked about the CoreCLR security model , and how it is built upon the transparency model introduced in the v2.0 .NET Framework. The quick summary was that all Silverlight application code is transparent, and transparent code may only call other transparent code and safe critical code. With...
10 May 2007
The Silverlight Security Model
You may have heard a thing or two last week about a little project we like to call Silverlight , including a small version of the CLR that will run in the browser on both Windows and the Mac. (If you haven't grabbed the Silverlight v1.1 alpha bits yet, I highly recommend it -- as well as grabbing the...
9 May 2007
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