Patent ID: 8930494
Filing Date: 2015-01-06
Classification: G06F,H04L

Abstract:
1. A method comprising: receiving a data transmission at a server from a browser to initiate an out-of-band protocol session, the data transmission comprising: the data transmission for notifying the server of current state information for a current session between the browser and the server; receiving data requests at the server from the browser; generating a message authentication code at the server, via the authentication key, that includes a cryptographic hash of data retrieved by the server from a web server; accessing records of data sent from the server to the browser for storage in the cache contents; and transmitting from the server to the browser only that portion of the data retrieved by the server from the web server that does not already form part of the cache contents, wherein returned data includes a result of a hash of the portion of the data retrieved by the server from the web server generated using the authentication key such that the browser can authenticate the returned data.