Code access protection

[maxim]

Hi everyone,

We develop a GUI application and Class Library. Both are written in C#.
The Class Library has public interfaces with a lot of functionality,
which can be accessed from our GUI application, but also from any other
developer who using our product. There are a couple of fucntions in this
Class Library that we want to hide (or at list to protect) from other
developers. Those functions are for our internal usage only. I mean we
want that the only who can call them is our GUI application.

Is there any way to do that?

Thanks,
Maxim.

[Nicholas Paldino [.NET/C# MVP]]

Maxim,

You can definitely do this. What you would have to do is give your
client application a strong name. Once you do that, you can get the public
key token for the strong name (using the secutil.exe tool) and then apply
the following attribute to your methods:

[StrongNameIdentityPermission(SecurityAction.LinkDe mand, PublicKey = "value
from secutil.exe")]
public void MyFunction()
{
...
}

However, this will mean that all of the assemblies that the client
references needs to be strong named as well.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

<ma***@scp.co.il> wrote in message
news:84**************************@posting.google.c om...

Hi everyone,

We develop a GUI application and Class Library. Both are written in C#.
The Class Library has public interfaces with a lot of functionality,
which can be accessed from our GUI application, but also from any other
developer who using our product. There are a couple of fucntions in this
Class Library that we want to hide (or at list to protect) from other
developers. Those functions are for our internal usage only. I mean we
want that the only who can call them is our GUI application.

Is there any way to do that?

Thanks,
Maxim.

[maxim]

Thank you Nicholas. I will try to do it.

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote in message news:<#$**************@TK2MSFTNGP12.phx.gbl>...

Maxim,

You can definitely do this. What you would have to do is give your
client application a strong name. Once you do that, you can get the public
key token for the strong name (using the secutil.exe tool) and then apply
the following attribute to your methods:

[StrongNameIdentityPermission(SecurityAction.LinkDe mand, PublicKey = "value
from secutil.exe")]
public void MyFunction()
{
...
}

However, this will mean that all of the assemblies that the client
references needs to be strong named as well.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

<ma***@scp.co.il> wrote in message
news:84**************************@posting.google.c om...

Hi everyone,

We develop a GUI application and Class Library. Both are written in C#.
The Class Library has public interfaces with a lot of functionality,
which can be accessed from our GUI application, but also from any other
developer who using our product. There are a couple of fucntions in this
Class Library that we want to hide (or at list to protect) from other
developers. Those functions are for our internal usage only. I mean we
want that the only who can call them is our GUI application.

Is there any way to do that?

Thanks,
Maxim.

[maxim]

Thank you Nicholas I will try this.

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote in message news:<#$**************@TK2MSFTNGP12.phx.gbl>...

Maxim,

You can definitely do this. What you would have to do is give your
client application a strong name. Once you do that, you can get the public
key token for the strong name (using the secutil.exe tool) and then apply
the following attribute to your methods:

[StrongNameIdentityPermission(SecurityAction.LinkDe mand, PublicKey = "value
from secutil.exe")]
public void MyFunction()
{
...
}

However, this will mean that all of the assemblies that the client
references needs to be strong named as well.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

<ma***@scp.co.il> wrote in message
news:84**************************@posting.google.c om...

Hi everyone,

We develop a GUI application and Class Library. Both are written in C#.
The Class Library has public interfaces with a lot of functionality,
which can be accessed from our GUI application, but also from any other
developer who using our product. There are a couple of fucntions in this
Class Library that we want to hide (or at list to protect) from other
developers. Those functions are for our internal usage only. I mean we
want that the only who can call them is our GUI application.

Is there any way to do that?

Thanks,
Maxim.