| Summary: | 碩士 === 靜宜大學 === 資訊管理學系 === 91 === With the approval of the electronic signature law in Taiwan, digital security of patient records, medical certificates, and medical images are paid more attention than before. To authenticate medical image, this study apply image hiding technique and digital signature technique to propose a medical image authentication mechanism.
Our proposed scheme can effectively create the connection between the patients and their medical images. Furthermore, the proposed scheme can recognize the slight modifications on the medical image, since the relative authentication message are generated pixel by pixel. These authentication message are randomly stored in the LSBs of each pixel, therefore, the attacker is hard to modify a medical image without being observed.
Compared with other scheme, the experiment results show our scheme provides higher image quality of the medical images that hide the authentication message. In addition, the light modification of the medical image do not only can be detected, but also can be recovered.
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