How to authenticate user while calling a webservice (in ASP.Net)?

Question

We have created a webservice in C# for sharing data with user. The data is available in csv or Excel format.

The data will be converted into XML and provided to users through a webservice. The users will use only a browser kind of interface to get the data. There is no client side application to call the webservice. The users will just use the plain url as below:

http:///WebService.asmx/HelloWorld?table=users

We want to implement data level security. So, different users calling the same webservice will get different data. We need to authenticate the users based on the windows NT Name.

We don't want to pass any credential in the webservice url. "Is there a method to capture the user NT Name of the user calling the webservice?" Based on that name we want to restrict the data while passing it on to the user.

Please suggest any other possibility if there is any.

Prabhu Appu

Take a look at this: Transport Security with Windows Authentication. You can intercept the username on the WCF side, and give the appropriate data back to the user defined by username/group or something else. — schei1
– schei1, Commented May 28, 2014 at 8:59

Patrick Hofman · Accepted Answer · 2014-05-28 08:58:23Z

2

You can set up your application to use Windows authentication.

Read How to: Configure an XML Web Service for Windows Authentication.

Basically, you have to add this to your web.config:

<authentication mode= "Windows">
</authentication>

And change the authentication of your client to include the right NetworkCredentials.

answered May 28, 2014 at 8:58

Patrick Hofman

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2 Comments

user3682801 Over a year ago

there no client side application to call the webservice. user will just use the plain url as below... is there a way to handle the user's NT name in webservice >serverip/WebService.asmx/HelloWorld?table=users

Patrick Hofman Over a year ago

Okay, then your browser should supply that if possible.

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