Patent ID: 7882351
Filing Date: 2011-02-01
Classification: G06F,H04L

Abstract:
1. A method for encoding and transmitting a digital file in a manner designed to facilitate authentication of a streamed transmission of the digital file, the method including: generating a progression of check values, each check value in the progression being derived from at least one other check value in the progression and from a portion of the digital file; transmitting the digital file and the progression of check values to a user's system, whereby the user's system is able to receive parts of the digital file and to use one or more received check values to authenticate said parts of the digital file before the entire digital file is received; wherein the portion of the digital file comprises error-check values, each error-check value being inserted in proximity to a part of the digital file to which said error-check value corresponds, each error-check value being configured to facilitate authentication of a part of the digital file and a check value in the progression of check values.