Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Watermark Authentication Cryptography for Medical Image Security

의료영상 보안을 위한 워터마크 인증 암호화 기법

  • Cho, Young-bok (Department of Computer Science, Chungbuk National University) ;
  • Woo, Sung-Hee (Department of Medical Information&Engineering, Korea National University Transportation) ;
  • Lee, Sang-Ho (Department of Computer Science, Chungbuk National University)
  • Received : 2016.11.29
  • Accepted : 2016.12.08
  • Published : 2017.04.30
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Abstract

In this paper, we preserve the transparency of digital contents by compressing and storing the medical image for a certain period so as to be safe and robust against various attacks of medical images. The proposed algorithm generates an encrypted image authentication code that extracts the feature value of the original image and combines it with the user's information. in order to extract hidden data, the authentication code is first decrypts the encrypted medical image and extracts the hidden data using the spatial characteristics of image. The proposed algorithm guarantees integrity when comparing extracted authentication code and newly generated authentication code for image authentication after directly inserting it into content itself through watermarking. We have proved various security of attack of image data and proved that the certification rate is improved to 98.4%.

제안 논문에서는 의료영상의 다양한 공격에 안전하고 견고하도록 의료 영상을 일정기간 압축 저장해 디지털 콘텐츠에 투명성을 유지한다. 제안논문은 오리지널 영상의 특징 값을 추출하고 사용자의 정보와 결합해서 암호화된 영상 인증코드를 생성한다. 인증코드는 은닉된 데이터를 추출하기 위해 먼저 암호화된 의료영상을 복호화하고 영상의 공간 특성을 이용해 은닉데이터를 추출한다. 따라서 워터마킹을 통해 콘텐츠 자체에 직접 삽입 후 영상의 인증을 위해 추출된 인증코드와 새로 생성된 인증코드의 비교를 수행해 무결성을 보장하고 영상자료의 다양한 공격 안전함을 증명하고 인증률도 98.4%로 향상됨을 증명하였다.

Keywords

References

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