How to make a digital signature in a web application (JavaScript) using a smartcard?

Question

We have written a document management system and would like to digitally sign documents using the web client. Our Java client application is already able to apply and check

Answer 1

Now you can do that. Web application based on PKCS#11 smart cards or tokens can be implemented by using the Silverlight version of NCryptoki. See http://www.ncryptoki.com

You have two chanches:

1) using the Silverlight version of NCryptoki and develop your own Silverlight User Control that implements your logic, a Digital Signature in your case, using PKCS#11 functions supplied by the smart card

2) using the JQuery plugin based on the above Silverlight version and implement your application in JavaScript by calling the PKCS#11 functions in JavaScript

Also, you can use the Silverlight version of NDigitSign (see again http://www.ncryptoki.com) that does all you need and can be implemented in any web browser.