A client-based secure deduplication of multimedia data
Danping Li, Chao Yang, Chengzhou Li, Qi Gang Jiang, Xiaofeng Chen, Jianfeng Ma, Jian Ren · 2017
The replication and dissemination of multimedia data become increasingly convenient and efficient, so a lot of redundant multimedia data, especially image files, have been generated and stored on the Internet. Therefore, it is necessary to perform deduplication of images. However, the existing deduplication methods of regular files are hash-based, which cannot be applied to the deduplication of images. The deduplication of images faces following three challenges: it needs to check duplicates fuzzily; it needs to verify the ownership of similar images; it needs perceptual image quality assessment. Aiming at these challenges, we propose a scheme named the Client-based Security Provable Deduplication of Multimedia Data (CSPD). The proposed CSPD scheme is capable of responding to the above challenges. Furthermore, it meets provable security requirements. Our extensive simulation and performance analysis show that the CSPD can check duplicates accurately and assess the perceptual quality of distorted images. Moreover, the proposed CSPD is more efficient than the existing schemes in communication bandwidth and storage spaces.