I have a VB.net app running on the 1.0 framework.  The exe resides on a
network share and all of the client computers have a full trust configured to
the shared folder from which the exe runs.  The app was deployed one year ago
and the clients had no trouble using it.  This is a ...

When should you explicitly check for correct permission? Perhaps this sounds
strang, I know, but stick with me for a moment. For example the
GetCurrentDirectory
method on the Directory class throws an UnauthorizedAccessException if the

I have someone who has given me a string that was encrypted with their RSA
private key.  I tried to import their RSA public key and decrypt their strng
but I get "Bad Key." as the response:
       'Verify the signature is authentic using the sender's public key.

   In an effort to learn about the .NET security settings I tried a simple
experiment.  I created a noddy console application and assigned it a strong
name.  I then extracted the public key token from the assembly.  This was
all on my local disk.  I then tried stop the console ...

while trying to execute the following program i am getting "System.ComponentModel.Win32Exception: Access is denied" as errror message.
<% @Page Language="C#" %>
<% @Import Namespace="System.Diagnostics" %>
<script language="C#" runat="server">

Hi list!
I have 2 questions about TripleDes- first about a problem I'm running into
implementing the tripleDES algorithm in the .net framework, and the second is
an academic one about what I thought I knew about tripleDES vs. how it's

I have a service that logs/traces information through a custom trace listener
to a log file in System32. The name of the file is something like
ApplicationServerYYYYMMDD.log. Where YYYY is the year, MM is the month, and
DD is the day. So I get a maximum of one log file per day. ...

Hey all, I was just wondering what hash algorithm is used when you provide a
key through the used of the Strong Name Tool or is it configurable?  
For example when I generate a keypair.snk file using the the Strong Name
Tool (Sn.exe) and then include the following in my ...

I need to append encrypted messages to an application log file.  I'm
following the approach used in MS "307010 - How To Encrypt and Decrypt
a File by Using Visual C# .NET".
If I append only one message and then decrypt it works fine. If I

Hey all, I've read that security policy can be administered at the following
levels:
Enterprise Policy Level
Machine Policy Level

I have a control which connects to an object on a server. This object has an
event, and client (the control) subscribes to this event. So something
happens on the server, it fires the event - the control is notified.
All this works just fine when the controll is hosted in a ...

I get a vague 'Security Error' when I try to access Active Directory via the
'System.DirectoryServices' DLL.  I am doing this within a SharePoint Web
Part.  I also stripped the code out of the SharePoint Web Part and put it on
a regular ASP.NET Form and it worked fine.

I have two conceptual questions that I would like to hear some opinions on:
1.  Assume you are developing an application which incoporates a role-based
security model.  An administrator can define roles with specific privileges
and then add users to those roles.  After a user has ...

Hello - after completing a simple app and finally getting it right, I put
the app on a network share for others to test. Well, you know the rest.
Doesn't work with a System.Security.Permissions.SecurityPermission error. I
found out about the .NET administrative tool to create an MSI ...

have a look at the new msdn magazine issue
msdn.microsoft.com/msdnmag
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Dominick Baier - DevelopMentor