Pfu Limited

Fujitsu Corporation

Mutsumu Nagashima

Yasuharu Inami

Taizo Anan

Kensuke Kuraki

Hitoshi Yoshio

Seishi Sanada

An information output system for tampering detection, including: a digital image acquiring unitfor acquiring a digital image including target information for tampering detection as an image; an encrypting unitfor converting the digital image based on an encryption key to generate an encrypted image; and an output unitfor outputting the encrypted image generated by the encrypting unitso that the encrypted image is recorded on a paper medium on which the image of the target information is to be recorded or on which the image of the target information is recorded.

Information output system, method, and program for tampering detection

An electronic document processing systemincludes a digital image generating unitgenerating a digital image in a predetermined range of the electronic document; an image encrypting unitgenerating an encrypted image by converting at least a partial area of the generated digital image; a data encrypting unitgenerating encrypted data by extracting data contained in the predetermined range in pieces of data organizing the electronic document and encrypting the data; an encrypted data storing unitstoring the encrypted data; and an encrypted electronic document generating unitgenerating an encrypted electronic document by replacing the data contained in the predetermined range in the electronic document with the encrypted image.

Electronic document processing system

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

Mutsumu Nagashima