Data Encryption Technique for Depth-map Contents Security in DWT domain

Abstract

As the usage of digital image contents increase, a security problem for the payed image data or the ones requiring confidentiality is raised. This paper propose a depth-map image contents encryption methodology to hide the depth information. This method is performed on the frequency coefficients in the Wavelet domain. This method, by selecting the level and threshold value for the wavelet transform, encryption at various strengths are possible. The experimental results showed that encrypting only 0.048% of the entire data was enough to hide the constants of the depth-map. The encryption algorithm expected to be used effectively on the researches on encryption and others for image processing.키워드 깊이정보, 영상 암호화, 이산 웨이블릿 변환, 3차원

A Study of Definition of Security Requirements on Encryption and Audit Logging

“…In this paper, we take a real example of encryption and log audit for safe data transmission and periodic check. 암호화에 관련된 연구로는 맵리듀스 기반의 분산 암호화 처리 방법 [3], Java API에 포함되어 암호화 기능을 제공하 는 JCA(Java Cryptography Architecture)를 이용하여 HDFS 암호화를 구현하고 성능 실험을 수행한 방법 [4], 깊 이정보 영상 콘텐츠를 숨기기 위한 암호화 방식 [5]과 그 밖의 방법 [6][7][8][9][10] …”