The secure exchange of secret information is one of the most important challenges in the era of modern communication. To address the issue and establish secure communication, various techniques have been developed. Transmitting secret information in a hidden manner is one of the numerous possible solutions. It can be used to transmit secret information, hidden in other media called cover medium. However, this increases the amount of transmittable data and bandwidth requirements. The work proposed technique is an effort to hide secret information in a cover medium to achieve secure communication, reduce the bandwidth requirement, and ensure the retrieval of secret information in full-strength. The proposed data hiding technique has a high data hiding capacity (HC), provides a high level of security, and results in high-quality stego images. The proposed technique, reversible-enhanced stego block chaining (RESBC), has demonstrated very good results as compared to the state-of-the-art steganography techniques. The RESBC successfully solves the data rate requirement of SBC. It has an improved security level of secret information as compared to the 4-least significant bits (4LSB) steganography. The RESBC has solved the problem of information recovery, associated with ESBC and ensures full health recovery.

中文翻译：

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可逆增强型 Stego 区块链图像隐写术：一种高效的数据隐藏技术

秘密信息的安全交换是现代通信时代最重要的挑战之一。为了解决这个问题并建立安全通信，已经开发了各种技术。以隐藏方式传输秘密信息是众多可能的解决方案之一。它可用于传输隐藏在其他媒体中的秘密信息，称为封面媒体。然而，这增加了可传输数据量和带宽要求。所提出的工作技术是努力将秘密信息隐藏在覆盖介质中以实现安全通信，降低带宽要求，并确保全强度检索秘密信息。所提出的数据隐藏技术具有很高的数据隐藏容量（HC），提供了高度的安全性，并产生了高质量的隐写图像。与最先进的隐写术技术相比，所提出的技术可逆增强隐写区块链 (RESBC) 已经证明了非常好的结果。RESBC 成功解决了 SBC 的数据速率要求。与 4 个最低有效位 (4LSB) 隐写术相比，它具有更高的秘密信息安全级别。RESBC 解决了信息恢复问题，与 ESBC 相关联，确保完全健康恢复。