IMAGE PROCESSING SYSTEM, METHOD, AND PROGRAM

摘要

The user performs the encrypting or decoding of key information without any concern for the key information. An image processing system (100) for decoding the encrypted image generated by converting some areas of a digital image in a bitmap form with an encryption key comprises a key information storage section (21) for storing the decoding key corresponding to the encryption key in association with the user to whom the authority to decode and read the conversion areas which are the areas converted by using the encryption key is set, a user authentication section (24), a key information acquiring section (22) for acquiring the decoding key associated with the authenticated user out of decoding keys stored in a key information storage section (21), and a decoding section (14) for generating the digital image in which the conversion area for which the authenticated user has the authority to read out of the conversion areas is decoded by decoding the conversion areas in the encrypted image with the acquired decoding key.