in Application_BeginRequest how do i cancel the request and send back a
message?

I am writing some code to access share folder on a remote network.
DirectoryInfo dicInfo = new DirectoryInfo("remoteNetwork\shareFolder");
if (dicInfo.Exists)
{

I have a small architectal or development problem.
My application must store some confidential information (for example, public
key) on the end user's computer, that accessible only for my application (and
not available for other applications).

In 1.0/1.1 the following code ensures that a class that wants to inherit
from InheritanceDemandExample must be signed with the publisher certifcate
contained in the file C:\Certs\pubcert.cer.
using System.Security;

Our company has written an application that gives us a competitive edge.  
The upper management is very concerned with the security of this application.
Our proposed solution is to have the application create a code similar to
that of a Windows code (25 hex digits) that is ...

limiting access to files with asp.net
is there any way i can make a file only accessible to certain users of my
website? my files are to large to copy to a temp directory and they are of
many types, .exe .xsl .xml etc. i want an href to each file but only allow

Why do I get the exception:
"Length of the data to encrypt is invalid."
... even when I use the CFB or OFB cipher modes?
These cipher modes should not care about the length of the encrypted

I have an application that uses remoting.
I have strongly named every assembly in the application.
I have granted FullTrust based on the key used for strongly naming.
(I did this by creating a code group with the membership criteria being the public key that the assemblies are ...

i've developed several windows forms user controls which are encapsulated
by several asp.net server controls. all the user controls are embedded inside
the dll that contains the asp.net server controls. the windows forms user
controls were built using v1.1 of the platform.

I am working a project for a client where we are required to send a signed
XML downstream to their server. I need to sign the XML with a X509
certificate private key and then send a (.cer) version of that certificate
downstream with the public key so that the client can validate ...

Has anyone worked on the problem of converting cryptographically-strong
random numbers [ such as those generated by RNGCryptoServiceProvider() ] to
strings of chars built from specified sets of ASCII or Unicode characters --  
without loss of the level of quality of randomness ?

Caspol allows to see and configure the security policies. By default, the
only configured one is the "machine" security policy.
Thus, one can see that the assemblies from "My_Computer_Zone" are
"FullTrusted".

I've been trying to change the password of an active directory user through
code. This computer executing the code is not the domain controller. the
problem is that I keep getting an unauthorized access exception. I've been
told I have to use the SSL authentication type to get ...

Hello group!
We're planning to use strong naming for our app and this does indeed
work fine *if* the app has been registered for fulltrust (w/ caspol).
Trouble is if it's not *yet* fully trusted. Then, if the app starts

In order to run Excel 2003 - Office System Project with C#. All assemblies
(.DLL) use by the project must be set to full trust.
To do it manually, you right click on .NET Configuration 1.1-->Runtime
Security Policy and select "Trust an Assembly".