Paper Info
Title
New Framework for Reversible Data Hiding in Encrypted Domain.
Abstract
In the past more than one decade, hundreds of reversible data hiding (RDH) algorithms have been reported. Via exploring the correlation between the neighboring pixels (or coefficients), extra information can be embedded into the host image reversibly. However, these RDH algorithms cannot be accomplished in encrypted domain directly, since the correlation between the neighboring pixels will disappear after encryption. In order to accomplish RDH in encrypted domain, specific RDH schemes have been designed according to the encryption algorithm utilized. In this paper, we propose a new simple yet effective framework for RDH in encrypted domain. In the proposed framework, the pixels in a plain image are first divided into sub-blocks with the size of m x n. Then, with an encryption key, a key stream (a stream of random or pseudorandom bits/bytes that are combined with a plaintext message to produce the encrypted message) is generated, and the pixels in the same sub-block are encrypted with the same key stream byte. After the stream encryption, the encrypted m x n sub-blocks are randomly permutated with a permutation key. Since the correlation between the neighboring pixels in each sub-block can be well preserved in the encrypted domain, most of those previously proposed RDH schemes can be applied to the encrypted image directly. One of the main merits of the proposed framework is that the RDH scheme is independent of the image encryption algorithm. That is, the server manager (or channel administrator) does not need to design a new RDH scheme according to the encryption algorithm that has been conducted by the content owner; instead, he/she can accomplish the data hiding by applying the numerous RDH algorithms previously proposed to the encrypted domain directly.
Year
DOI
Venue
2016
10.1109/TIFS.2016.2598528
IEEE Trans. Information Forensics and Security
Keywords
Field
DocType
PREDICTION,EXPANSION,IMAGES,WATERMARKING,COMPRESSION,ALGORITHM
Byte,Algorithm design,Computer science,Information hiding,Encryption,Theoretical computer science,On-the-fly encryption,Filesystem-level encryption,Key (cryptography),Plaintext
Journal
Volume
Issue
ISSN
11
12
1556-6013
Citations 
PageRank 
References 
27
0.76
28
Authors
3
Name
Order
Citations
PageRank
Fangjun Huang143323.61
Jiwu Huang22784178.51
Yun Q. Shi32918199.53