1. A method comprising: selecting a set of data from at least one of a photograph and information, wherein the information and photograph are carried by a physical document, the document further including a design; reducing the selected set of data to a first number; and altering characteristics of the design according to the first number, wherein evidence of the altered design characteristics is found through analysis of data corresponding to the altered design characteristics in both a spatial domain and a frequency domain, and wherein the evidence in either of the spatial domain or the frequency domain provides an authentication clue.