Fax Countersign Authentication with airSlate SignNow

Fax countersign authentication

this part 50 of division feeder series in this video well discus authentication in WCF in part 47 of this video series we discussed how bindings provide confidentiality and integrity security features out of the box without any additional configuration in this video we'll discuss authentication and in a later video we'll discuss authorization over the box most bindings provide authentication without any additional configuration for example out of the box both WS HTTP binding and net TCP binding provides windows authentication let's understand this with an example let's flip to visual studio let's create a new project and let's call this project simple service let's delete this class 1 dot CS file that's auto-generated and to this project let's add a new item and we want to add a WCF service so let's search for that template select a VCF service and let's name or WCF service simple service let's change the name of this operation contract let's call it get user name so what does this operation contract going to do it's going to return they logged in user name and since we want to return the logged in user name the return type of the operation contract is going to be string but let's go ahead and implement this operation contract in simple service file so click on eyes simple service plus control dot and it'll get an option to implement the interface method in this case get user name so here we need to write code to return the logged in user name so how are we going to get the logged in user name so obviously WS HTTP binding and a TCP binding out-of-the-box provide windows authentication meaning whoever is logged into the computer you know we are going to return that logged in user name so how are we going to get the logged in user name to get that we use service security context so service security context dot current dot primary identity and if you look at this object it has got three different properties is authenticated you know this is a boolean property okay so this is going to return true if the user is authenticated so let's actually print that as well so console dot write line so within the console window of our WCF service will print you know a message saying whether if the user is authenticated or not so he's authenticated and that we are going to concatenate whatever you know this method is going to return he's authenticated and let's convert that to a string okay similarly if the user is authenticated then we also want to know what is the authentication type used so authentication type and how do we get to know what authentication type is used again this primary identity object has got authentication type property and that returns string so there's no need to convert that again into a string and then finally so we know whether the user is authenticated or not what authentication type is used and finally we want to know the username that is the authenticated user name so console dot readline username and to get the username again we use the same object service security context or current or primary identity dot name should give us the logged in user name okay so basically all these lines are going to print you know the message but in the console window but this method needs to return the logged in user name so let's go ahead and return that string so return let's just say authenticated user name and we can simply copy and paste this same code right here okay so basically this line is going to return the authenticated user name and these three lines are going to print whether if the user is authenticated if the user is authenticated what are what authentication type is used and the username of the authenticated user okay all right so there we have our WCF service now we need to host a stubby civ service and to do that let's go ahead and add a console project to this solution and let's call it host project okay and to this project we need to add a reference to our simple service and we also need to add a reference to system dot service model assembly so let's go ahead and do that as well and we need to add an application configuration file to a host project and here we need to specify the configuration to host the WCF service to speed things up I already have the configuration type so if you look at the end point here notice that at the moment we are using WS HTTP binding and if you recollect you know WS h DB binding provides windows authentication out-of-the-box ok and then within program dot C s file we need to write code to start our WCF service so first of all let's bring in system dot service model namespace and copy and paste the code to start this service host all right so let's set up a host project as the startup project and run our WCF service so who started now let's create a client for our WCF service so here i already have a new windows forms application all i have done so far as drag and drop this button control onto the form and then I have changed the name of the button to BT and call service and the text on the button to call service so the first thing that we need to do here is to add a reference to our WCF service so add a service reference and if you look at the base address where our WCF service is available this the base address so let's copy that go back to our client project and paste the address here click go so this should discover a simple service let's specify the namespace as a simple service click OK and let's double click the button control which should generate a click event handler so now let's call it an invoke of a simple service so first let's create a client and we have get user name function which is going to return a string and let's display that string within a message box so message box truck show alright so let's go and run this now now at the moment I am logged in into this computer using ten username so when I click call service so the name of the computer here is fainted - PC so that's what is the message we should get look at this authenticated user name when get - PC that's the name of my computer and on in this computer we have a user called tan and that's what I have used to login to this computer so you know it it has identified that okay now if you look at the service host console window look at that is authenticated true and authentic ation type is ntlm and user name is Wang cat - PC it's backslash tan now I have another user you know on this computer configured and the user name is Venkat so let's actually run this client application you know with a different user account and to do that open this client project in Windows Explorer navigate the bin directory and then to the debug directory so here we have client at exa now you know hold down the shift key and then right click on client dot exe so you will get an option to run that application as a different user so select that option so now it is asking you the credential of the different user you know using whose account you want to run this client application now we want to run this using a venkat account that's configured on this Bankard PC so let's go to n-type blanket username and we also need to type his password so let's go ahead and do that and then click ok so now this application is running using venkat user count okay so when I click call service look at that Bank at - PC backslash meant cut and if you look at the console window again look at that is authenticated true authentication type is ntlm and username is fingered - pc blanket okay so out of the box you know WS HTTP binding is providing you know windows authentication that's actually changed the binding to net tcp binding and see if it works the same way so instead of WS HTTP binding let's change that to net TCP binding let's close the client as well as the WCF service host and let's go and run our WCF service host since we have specified the binding its net tcp binding we need to add a base address for TCP binding so let's go and do that as well net dot TCP colon four slash four slash local host : 89 T so that is going to be the base address for the TCP protocol alright let's go ahead and run our WCF service so host started now let's go ahead and update our service reference within the client application so if you look at the app dot config file at the moment it's using WS HTTP binding okay so let's update the service reference so now it is using net TCP binding right let's go ahead and run this click call service look at that when get - PC backslash tan and within the service host window he's authenticated true ntlm and tan is the logged in user so to customize the security mode for a binding you know we use more attribute of security element within the respective binding we discussed this in part 47 and now if we want to configure or customize the authentication mode for a given binding then we use client credential type attribute of either the message element or transport element now let's say for example you know at the moment here we are using net TCP binding and then you know we know that we have different modes of security we can either use transport security or message security or mixed mode security so to configure the security mode we usually use the bindings element and then let's say for example we want to customize the binding for net TCP binding so we'll specify the binding name as net TCP binding I mean the binding type and then we give the binding a name maybe let's say net TCP and then here we specify the security mode so what security mode you do you want do you want message or transport on transport with message credential or you don't want any security at all so let's say for example when I choose transport as a security mode then we select transport element within the security element and then here client credential type is what we can use to customize the authentication that we want to use with this security mode so do you want to use Windows or do you want to use certificate or none okay similarly if you said the security mode as message and you use message element and then specify the client credential type so the message you know security would be of course we have actually a lot more options than you know with transport mode so here we can either use Windows or username authentication certificate or issued tokens we'll discuss all these in detail in a later video session ok the point that we need to understand here is that to customize the authentication scheme for this given binding we use client credential time that's it for today thank you for listening have a great day