Patent ID: 9438589
Filing Date: 2016-09-06
CPC Classification: G06F,H04L

Claim Text:
1. A method of authenticating a digital data file associated with an originator of the digital data file, the method comprising: deriving information from at least a portion of the digital data file using a predefined function; generating authentication data providing an irrevocable binding of the digital data file to at least one biometric characteristic of the associated originator, by: prompting the originator to record biometric input of the derived information; and capturing audio and/or image data of the biometric input of the derived information by the originator in response to the prompting, wherein the derived information is implanted into the captured audio and/or image data; and transmitting, over a data network, the digital data file and the associated generated authentication data to a recipient, whereby the implanted information and the at least one biometric characteristic of the associated originator are verified from an output of the generated authentication data, wherein the derived information comprises encoded data derived from the digital data file using a codebook look up table, where a symbol or sequence of symbols is used to describe said content.