So how I retrieve actual form data

[mhesabi]

I'm using ASP.Net MVC after submitting form I only get key. how can I retrieve form data that submitted by user?

http://stackoverflow.com/questions/28654590/jcryption-asp-net-mvc

[JakeJP]

There are some difficulties to use jCryption.NET with MVC. The biggest problem is that parameters that are passed from MVC model binder don't see the original Request.Form object. To get a model parameter filled properly, some trick is needed.
For the moment, quick but limited solution is like this:
Add code in your project

using System;
using System.Web.Mvc;
namespace jCryption
{
    public class jCryptionModelAttribute : CustomModelBinderAttribute
    {
        public override IModelBinder GetBinder()
        {
            return new jCryptionModelBinder();
        }
        public class jCryptionModelBinder : DefaultModelBinder
        {
            override public Object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
            {
                jCryption.HandleRequest(controllerContext.HttpContext.Request);
                bindingContext.ValueProvider = new FormValueProvider(controllerContext);
                return base.BindModel(controllerContext, bindingContext);
            }
        }
    }

    public class jCryptionHandshakeAttribute : ActionFilterAttribute
    {
        override public void OnActionExecuting( ActionExecutingContext filterContext)
        {
            jCryption.HandleRequest(filterContext.HttpContext.Request);
        }
    }
}

in the control class, declare an action to handle jCryption negotiation and add [jCryptionModel] attribute to LoginModel. ( this one does not work with AntiForgeyAttribute )

    using jCryption;
    public class AccountController : Controller
    {
        [jCryptionHandshake]
        [AllowAnonymous]
        public void jCryptionHandshake()
        {
        }

        [HttpPost]
        [AllowAnonymous]
        //[ValidateAntiForgeryToken]
        public ActionResult Login([jCryptionModel] LoginModel model, string returnUrl)
        {

in the view, write script to access the handshake action which is defined above.

    @jCryption.RenderScriptFor(null, src:"/Scripts/jquery.jcryption.3.1.0.js")
    <script>
          $(document).ready(function () {
            $('form').jCryption({
                getKeysURL: '/Account/jCryptionHandshake?getPublicKey=true',
                handshakeURL: '/Account/jCryptionHandshake?handshake=true'
            });
        });

    </script>

I'd better work hard to find an elegant solution of jCryption for MVC...

[JakeJP]

Hi again. I revised this solution a bit easier.

All you need is:

using System;
using System.Web.Mvc;
namespace jCryption
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
    public class jCryptionHandlerAttribute : FilterAttribute, IAuthorizationFilter
    {
        public void OnAuthorization(AuthorizationContext filterContext)
        {
            jCryption.HandleRequest(filterContext.HttpContext.Request);
        }
    }
}

in controller

        // GET: /Account/Login
        [AllowAnonymous]
        [jCryptionHandler]
        public ActionResult Login(string returnUrl)
        {
             ....
        }

        // POST: /Account/Login
        [HttpPost]
        [AllowAnonymous]
        [jCryptionHandler]
        [ValidateAntiForgeryToken(Order=0)] // to make sure this action comes after jCryptionHandler
        public ActionResult Login(LoginModel model, string returnUrl)
        {

in view

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
    @jCryption.RenderScriptFor("form", src:"/Scripts/jquery.jcryption.3.1.0.mod.js")
}

A point is you need to use my "mod" version of jcryption.js which does not depend on Session key store. (since Session is disabled in MVC controllers by default)

[mhesabi]

Thank you, brilliant solution and support indeed. Thank you Jake so much.
in case anyone encountered javascript error at this line: $.jCryption.crypt = new JSEncrypt();
you need to add this : var $ = jQuery.noConflict();

@section Scripts {
    var $ = jQuery.noConflict();
    @Scripts.Render("~/bundles/jqueryval")
    @jCryption.RenderScriptFor("form", src:"/Scripts/jquery.jcryption.3.1.0.mod.js")
}