IMAGE VERIFICATION SYSTEM, IMAGE VERIFICATION DEVICE, IMAGE VERIFICATION METHOD, PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To securely detect whether image data photographed by an image generation device such as a digital camera is altered or not while preventing an increase of cost required by the image generation device. SOLUTION: The image generation device 10 generates an image file with primary verification data every time one image data is photographed. A verification data conversion device 20 generates an image file with secondary verification data (image file with digital signature) when image data in the image file with primary verification data is not altered. An image verification device 30 verifies the completeness of the image file with secondary verification data to detect whether the file is altered or not.