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February 2005 - Posts

Monday, February 28, 2005 5:12 PM

The Difference Between the Strong Name Hash and Hash Evidence

The System.Security.Policy.Hash class allows you to make security decisions based upon the hash of an assembly using the HashMembershipCondition . That sounds awfully similar to how strong names are calculated ... According to ECMA partition II section
Posted by shawnfa | 5 Comments
Friday, February 25, 2005 3:08 PM

CLR Bloggers Redux

Since I posted the list CLR bloggers , I've gotten many requests for the list in OPML format. So by popular demand, I've done the conversion and put the result here: CLR Bloggers OPML . I'll continue to keep the original list and the OPML as up to date
Posted by shawnfa | 1 Comments
Wednesday, February 23, 2005 1:55 PM

Public Key Tokens

Time for another visit to the managed strong name API; this time lets take a look at public key tokens. If we want to calculate a token, the strong name API provides two functions that we can use. We've already covered the first, StrongNameTokenFromAssemblyEx
Posted by shawnfa | 0 Comments
Thursday, February 17, 2005 5:26 PM

Mindless Link Propagation

Rick Byers , who works on the CLR's DevServices (read: debugger) team recently started blogging. Today he writes about a topic that comes up every month or so on our internal mailing lists, covariance and contravariance of CLR generics (read: why can't
Posted by shawnfa | 0 Comments
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Wednesday, February 16, 2005 10:36 AM

Feedback on Link and Disjunctive Demands

In the spirit of gathering feedback from the community, here are two more feature areas we're interested in knowing how you use: Have you ever encountered the need to use a LinkDemand for a permission that did not inherit from CodeAccessPermission. (For
Posted by shawnfa | 4 Comments
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Tuesday, February 15, 2005 1:44 PM

More on the FullTrust GAC

Last week I mentioned that although currently assemblies in the GAC receive FullTrust as a side effect of the GAC being on the local machine, from Whidbey beta 2 and beyond, being in the GAC will imply FullTrust on its own. A lot of the feedback wondered
Posted by shawnfa | 19 Comments
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Thursday, February 10, 2005 5:13 PM

Does Being in the GAC Grant FullTrust?

What does being in the GAC imply about the permission set that will be assigned to an assembly? Well, it depends ... In v1.0 and 1.1, the fact that assemblies in the GAC seem to always get a FullTrust grant is actually a side effect of the fact that the
Posted by shawnfa | 18 Comments
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Tuesday, February 08, 2005 1:26 PM

Blogging around the CLR

As of today, there are 40 members of the extended CLR team with blogs on and off of MSDN. Some are more active than others, but if you're looking for a blog that might cover a specific area, here's some places to check out. Note these are categorized
Posted by shawnfa | 16 Comments
Friday, February 04, 2005 1:42 PM

Allowing Partially Trusted Callers

The AllowPartiallyTrustedCallersAttribute (affectionately referred to as APTCA from here on out), is one of the aspects of the security system that most frequently trips people up when they run into it. Lets look at a typical scenario where I might run
Posted by shawnfa | 28 Comments
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