Secure Reversible Data Hiding in Encrypted Images Using Cipher-Feedback Secret Sharing
Zhongyun Hua, Yanxiang Wang, Shuang Yi, Yicong Zhou and, Xiaohua Jia

TL;DR
This paper introduces a high-security reversible data hiding scheme in encrypted images using cipher-feedback secret sharing, enabling multiple data hiders to embed data securely while ensuring exact image recovery.
Contribution
It proposes a novel CFSS technique based on AES cipher-feedback and a threshold scheme for encrypted image sharing with improved security and reduced size.
Findings
High embedding rate achieved
Encrypted images are significantly smaller
Enhanced security against common attacks
Abstract
Reversible data hiding in encrypted images (RDH-EI) has attracted increasing attention, since it can protect the privacy of original images while the embedded data can be exactly extracted. Recently, some RDH-EI schemes with multiple data hiders have been proposed using secret sharing technique. However, these schemes protect the contents of the original images with lightweight security level. In this paper, we propose a high-security RDH-EI scheme with multiple data hiders. First, we introduce a cipher-feedback secret sharing (CFSS) technique. It follows the cryptography standards by introducing the cipher-feedback strategy of AES. Then, using the CFSS technique, we devise a new (r,n)-threshold (r<=n) RDH-EI scheme with multiple data hiders called CFSS-RDHEI. It can encrypt an original image into n encrypted images with reduced size using an encryption key and sends each encrypted…
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Taxonomy
TopicsAdvanced Steganography and Watermarking Techniques · Chaos-based Image/Signal Encryption · Digital Media Forensic Detection
