Pfu Limited

Seishi Sanada

Hitoshi Yoshio

Yasuharu Inami

Mutsumu Nagashima

An electronic document encrypting system, for accomplishing an object of providing a system capable of distributing an electronic document containing important information with a browsing restriction being set and information with none of the browsing restriction being set without removing the important information, includes: an encryption area extracting unitextracting an encryption target area from an electronic document; a digital image generating unit generating a digital image on the basis of the area extracted by the encryption area extracting unit in the electronic document; an encrypting unitencrypting the digital image generated by the digital image generating uniton the basis of an encryption key; and an encrypted electronic document generating unitgenerating an encrypted electronic document in which when the electronic document is output, in place of the extracted information, an encrypted image encrypted by the encrypting unitis output to an area to which the information extracted by the encryption area extracting unitis to be output.

Electronic document encrypting system, decrypting system, program and method

Provided is an image processing system capable of simply executing image processing for encryption and decryption without causing a user to perform a time-consuming operation of generating a processing target image, the system including: a rendering information input accepting unitaccepting an input of rendering information for depicting a content of electronic data; a digital image generating unitgenerating a digital image defined on the basis of the accepted rendering information; a definition information acquiring unitacquiring definition information containing area designating information for specifying an encrypting target partial area in the generated digital image and key information used on the occasion of encrypting the partial area; an encrypting unitgenerating an encrypted image by converting the image of the partial area on the basis of the key information; and an output unitoutputting the encrypted image.

Growing community of inventors

Kahoku, Japan

Seishi Sanada