The GAC is randomly generated, non-sequential and alpha-numeric and has the capacity to produce 131 quadrillion
(131,621,703,842,267,000) codes per prefix which makes it extremely difficult for any one to break the code and hence is highly secure. Once the user logs on to
www.annauniv.ac.in using the GAC printed on top of the certificate, intelliCAS generates the image of the certificate in real time and displays the complete details of the certificate on screen.