Secure single sign on/automatic login [modified] - C# Discussion Boards

Hello friends

I need help , can anybody help me for geting all child nodes from perticular node. like eg.

<rss version="2.0">
<channel>
<title>Suchbegriffe von Herzel
http://www.andunite.com<description>andUNITE - Suchbegriffe von Herzel
<pubdate> Tue, 5 Feb 2008 12:44:54 GMT

<item>
<title>herz
<description>herz
http://beta.andunite.com/EnterWorkspace.do?type=Searchword&section=home&param=6759 <pubdate>10 Jan 2008 09:47:08 GMT

<item>
<title>herz
<description>herz
http://beta.andunite.com/EnterWorkspace.do?type=Searchword&section=home&param=6759 <pubdate>10 Jan 2008 09:47:08 GMT

from above file , i want all child node of every item parent node .
can anybody helpe me ??

thanking you advance

regards
ashok

You have an example on MSDN[^]

SkyWalker

hi,

I am using vlc 0.8.6d to connect Axis 210 camera when enabling
"anonymous viewer" in the camera interface the rtsp request given below is working fine

The rtsp request is :

rtsp://user:pwd@192.168.1.111:554/mpeg4/media.amp

but i need a rtsp request without enabling "Anonymous viewer in the camera interface

Does anybody know how to pass user-id and password to start an rtsp session with basic authentication?

cheers........princy

Plz give me idea about how to run Multiple command in MS_DOS using C Sharp code.

for eg. using command prompt: telenet 10.0.1.15
login : snt
password : snt

execute more commands....

i use

System.Diagnostics.Process.Start ("cmd", @"/c telnet 10.0.1.15");
but how to again fire command for login, password and more...

I don't think you're going to be able to do it using Process.Start as you're simply launching another process - you need to have your own to send messages and listen for events etc.

For telnet, have a look at this[^]. I haven't tried it but it's open source so it should give you an idea at least by examining the source.

How to write code or Upload a file in c#

Thankyou,
Kalyan.

kalyan1211 wrote:
How to write code or Upload a file in c#

What you are trying to do ?

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Hi guys!

I need your input on how to solve a problem that we have.
Our company provides a web-service, a SaaS.
Our idea is to create a destop appilication that can communicate with the web service using https.
I have written a .net app in C#, and I need ideas on how I can login a user without the user needing to type his username and password each time.
The idea is that the user inputs his username and password once and then checks the checkbox to automatically login. Now the user doesn't need to input his login details each time the program restarts. My criteria is that the client should never store the password (clear-text or encrypted) on the local machine.

This is my idea for a solution.
User input the username and password on the desktop-client
The client sends the login details to the webserver, over ssl.
The server verifies the login details and sends back a challenge to the client, if the username and password was correct.
The client then computes a static value using DAPI. This is how i do it:

Code Snippet

private static RSA GetKey(DataProtectionScope scope)
{
switch (scope)
{
case DataProtectionScope.CurrentUser:
if (user == null)
{
CspParameters csp = new CspParameters();
csp.KeyContainerName = "DAPI";
user = new RSACryptoServiceProvider(1536, csp);
}
return user;
default:
throw new CryptographicException("Invalid scope.");
}
}

RSA rsaKey = GetKey(DataProtectionScope.CurrentUser);
RSAParameters keyParam = rsaKey.ExportParameters(true);

Then I use keyParam.P, which is the private key as the static value.
And this static value is dependent on the current user that is loged in to the OS.
I use the static value and the challenged recieved from the server to compute a hash value, H(keyParam.P, challenge).
The client send this value back to the server, and the server will use this hash value in future authentication.

So from now on, the client needs to compute this hash value on runtime, each time he wants to access the webservice.

I think this is strong enough for authentication. But the only problem I see with this solution is that the server has no idea what application is communicating with it. I want from the server only allow application signed or certified by us to contact the server. Because, the problem I see is that, an attacker can create an imitation of my destop client and fetch information from the server, if the user chooses to use "automatic login" feature.

I hope you guys understand my problem. Any replies will be deeply appreciated!

Thank,
/SC

modified on Wednesday, February 06, 2008 5:50:18 AM

while geeting this.ActiveMDIChild windows return as Form. I need as the original class object. there is any way? thanks in advance.

Have A Nice Day!
Murali.M

Try this.ActiveMdiChild.GetType()

hi,

What is the replacement of InputBox function (VB.Net) in C#.Net?

I.e in VB.Net we have InputBox function to allow user for entering details..similarly is there any function in C#.Net?

Google "c# inputbox" = Clickety

You always pass failure on the way to success.

Hi,
we can use Microsoft.VisualBasic.dll as reference in your c# application
and then use the following line in your code

Microsoft.VisualBasic.Intereaction.InputBox("entervalues","values","null",0,0);

where enter values is the prompt message for the user ,
values is the title of the input box,
null is the default value
0,0 are the x and y coordinates of the position of input box.

-Suchi

Suchi Teegala wrote:
0,0

These are actually optional arguments in VB.NET. But since C# does not support the concept of optional arguments, we ought to provide a value explicitly.

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't see the clouds at all - he's walking on them. --Leonard Louis Levinson

ya deepak but we can directly enter the values as 0,0
can u tell me if there is any problem in writing in that
particular way?

I'm new for networking programing and i wanna know that how to write a java program for mesure to ping delay for particular site

Ex-: If we ping in command promt www.googe.com how to write a program for mesure ping delay??

CheeN

sacr83 wrote:
I'm new for networking programing and i wanna know that how to write a java program for mesure to ping delay for particular site

Perhaps a Java forum would be better?

We violated nature and our children have to pay the penalty
Don't go near the water children... Johnny Cash - 1974

Hi all,

Is there a straight forward C# principle that I'm missing here? I have a MDI container in which I can open various MDI children.

If a MDI child is maximised and I open a new one, I want it to be maximised by default. This works, so far so good. However, if I close the last open MDI child form (even though it is maximised) the MDI container lose that status and the next MDI child that I open will not be maximised.

I want to now two things:

1. Is there a way I can have the MDI container with no open children remember whether the last open MDI child was maximised or not and open any new MDI children in the same state?

2. Is there a way I can have the MDI container open the very first child in a maximised state by default (on first execution)?

I hope my questions make sense.

Cheers

Create a static variable outside your form classes of type FormWindowState and set its initial value to FormWindowState.Maximized.

In the form closing event of each child, set this variable to the child's WindowState, and in the Load set the child's WindowState to the variable's value.

Another solution instead of a static variable is to use a Setting with user scope that way you could persist your last window state even when the app is restarted.

Hi All,

I am using vs.net 2005 and Fxcop 1.35.

I want to write some custome rule for naming conventions.

please provide me url for writing custom rules step by step

Thank you

Hi,

Please visit the following link to know the steps of writing custom rules for FxCop 1.35.

http://blogs.msdn.com/fxcop/archive/2006/05/31/faq-can-i-create-custom-rules-that-target-both-visual-studio-and-fxcop-david-kean.aspx[^]

For further information or FAQs please visit the following links:

http://blogs.msdn.com/fxcop/archive/2004/01/09/writing-custom-rules-in-fxcop-amp-fxcop-visual-studio-integration-jeffrey-van-gogh.aspx[^]

http://blogs.msdn.com/fxcop/archive/tags/Custom+Rules/default.aspx[^]

I hope this helps Smile | :)

.

Regards,
John Adams
ComponentOne LLC

I’ve deployed my program from VS 2005 for about 2 years now and updates have worked just fine with VS Setup deployment project.

When I increment my version number from 1.0.50 to 1.0.51 the reinstallation seams to go fine but it doesn’t replace the new dlls and exe files in the installation dir…

If I uninstall an then install it works fine but I don’t want my users to do that every time I release a new version.

RemovePreviousVersions = true
DetectNewerInstalledVersion = true

_____________________________

...and justice for all

APe

Hi,
I am trying to open an existing excel spreadsheet which has an Addins.
When I open it using .net code, it opens the file but the addins does not appear in the file.

So, after doing some search, I found there is a VBA code which does what I want but unfortunately I do not know how to add this VBA code to my .net code.
I am using c# but you can let me know the code in vb.net if you prefer.

Thanks

Here is the VBA which is supposed to have the Addins in the excel file:

Dim oAddin As AddIn
Dim oTempBk As Workbook

Set oTempBk = Workbooks.Add

Set oAddin = oXL.AddIns.Add("C:\blp\blp.xla", True)
oAddin.Installed = True

oTempBk.Close

In case you are interested, I am using c# to open my current excel file:

Microsoft.Office.Interop.Excel.Application EApp = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Worksheet WS = ((Microsoft.Office.Interop.Excel.Worksheet)(EApp.Workbooks.Open(@"C:\MarketAnalytics\YieldsSpreads\YieldsSpreads.xls",
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing).ActiveSheet));

EApp.Visible = true;

hi
how can i open outlook and send mail usin c# code ?

thank's

Why would you want to open Outlook for that? Feel free to browse this[^]

Cheers,
Vikram.

"I will put my new found knolage to good use" - Captain See Sharp.

"Every time Lotus Notes starts up, somewhere a puppy, a kitten, a lamb, and a baby seal are killed." - Gary Wheeler.