Patent ID: 8737614
Filing Date: 2014-05-27
Classification: G06F,H04L

Abstract:
1. A method for using identity-based encryption (IBE) to secure document images produced by document imaging equipment, comprising: at the document imaging equipment, acquiring a document image with an image acquisition device, wherein the document imaging equipment is a scanner and wherein acquiring the document image comprises scanning a printed document with the image acquisition device; with input-output circuitry in the scanner, obtaining an identifier from a user; at the document imaging equipment, constructing an IBE public key from the identifier; with a rules engine implemented on the document imaging equipment, analyzing a graphics version of the acquired document image to determine whether the acquired document image contains a feature selected from the group consisting of color, handwriting, and lines from computer-aided-design drawings; determining whether to encrypt the acquired document image based on whether the acquired document image contains the feature; and with an IBE encryption engine at the document imaging equipment, if it has been determined by the rules engine to encrypt the acquired document image, encrypting the acquired document image to produce an IBE-encrypted document image wherein encrypting the acquired document image comprises encrypting the acquired document image using the IBE public key.