DDIM-Driven Coverless Steganography Scheme with Real Key
Mingyu Yu, Haonan Miao, Zhengping Jin, Sujuan Qin

TL;DR
This paper introduces a DDIM-driven coverless steganography scheme that uses a real-key mechanism with reversible data hiding and chaotic encryption, reducing key exchange overhead and enhancing security against substitution attacks.
Contribution
It presents a novel coverless steganography method utilizing real keys, integrating RDH and chaotic encryption to improve key management and security.
Findings
Resists substitution attacks effectively
Requires only a single key negotiation for multiple communications
Reduces key exchange overhead significantly
Abstract
With the advancement of information hiding techniques, generation-based coverless steganography has emerged as an alternative to traditional methods, leveraging generative models to transform secret information into stego-objects rather than embedding it within the redundancy of the cover. However, existing generation-based approaches require pseudo-keys that must be shared between communication parties, leading to high overhead of frequent key exchanges and security risks due to their tight coupling with the secret information. This paper proposes a DDIM-driven coverless steganography scheme that utilizes a real-key mechanism, improving the key management. By integrating reversible data hiding (RDH) and chaotic encryption into generation model, the proposed method eliminates excessive key exchanges and reduces the correlation between the key and the secret information. Furthermore, it…
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Taxonomy
TopicsAdvanced Steganography and Watermarking Techniques · Chaos-based Image/Signal Encryption · Internet Traffic Analysis and Secure E-voting
MethodsDiffusion · Focus
