I wrote a paper published in an IEEE journal describing this mechanism. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=5501442&contentT

I wrote a paper published in an IEEE journal describing this mechanism. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=5501442&contentType=Conference+Publications http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=tru... http://www.kirit.com/A%20simple%20password-less%20authentication%20protocol%20for%20web%20sites http://www.kirit.com/A%20simple%20password-less%20authentica...