Patent ID: 7471404

Claim:
An image processor that is configured to input image data or output image data, which is capable of being connected to an outside of a computer that has a connection target, comprising: a decision component for making a decision as to whether said connection target is an authentic connection target having a function of preventing duplication of copy-inhibited matter; and a control component for performing normal image processing where said decision component recognizes said connection target as said authentic connection target and for inhibiting normal image processing where said decision component recognizes said connection target not as an authentic connection target, in order to prevent duplication of said copy-inhibited matter, and wherein said decision component judges whether the connection target is an authentic connection target or not, depending on whether the connection target can normally decrypt data sent by the image processor to the connection target which the image processor has at least partially encrypted, or depending on whether the image processor can normally decrypt data sent by the connection target which the connection target has at least partially encrypted.