Information output system, method, and program for tampering detection

摘要

An information output system for tampering detection 100, including: a digital image acquiring unit 15 for acquiring a digital image including target information for tampering detection as an image; an encrypting unit 11 for converting the digital image based on an encryption key to generate an encrypted image; and an output unit 18 for outputting the encrypted image generated by the encrypting unit 11 so 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.

主权项

1. An information output system for tampering detection of a paper medium, comprising:
a hardware processor and a computer-readable storage, the processor configured to: acquire a digital image including target information for tampering detection as an image, and record the digital image in the storage; encrypt, which involves converting the digital image including target information for tampering detection based on an encryption key to generate an encrypted image, and record the encrypted image in the storage; output the encrypted image of the entire target information generated by the encrypting and record the encrypted image on the 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; and output, simultaneously with the output of the encrypted image generated by converting the digital image including the entire target information, the unencrypted image of the entire target information as a target of tampering detection and record the unencrypted image on the paper medium in addition to the encrypted image.