Distributed Cryptography Add-on for SecureBlackbox®
Distributed Cryptography add-on lets you sign server-located documents and data using client's X.509 certificate without sending the data to the client or transferring the certificate to the server.
If you have a web application, this is accomplished by placing a client-side browser module (currently we offer ActiveX control, Flash module and Java applet) to the web page. If you have a desktop application, SecureBlackbox provides classes and components for the client side as well.
Client-side modules and classes perform the cryptographic operation using certificates located on the client computer without transferring them to the server. Server-side data is not sent to the client as well - instead only hash of the data is sent for signing.
Distributed Cryptography add-on is available for licensing as an additional option for Professional, Standard, Data Security, XMLBlackbox, PDFBlackbox, OfficeBlackbox and PKIBlackbox packages.
Licensed version of Distributed Cryptography add-on includes the source code of all client-side modules (ActiveX, Java, Flash) so that you can build your own modules or modify existing ones.