Reversible Encrypted Data Concealment in Images by Reserving Room Approach

Provided by: International Association of Engineering and Management Education (IAEME)
Topic: Security
Format: PDF
Recently, more and more attention is paid to Reversible Data Hiding (RDH) in encrypted images, since it maintains the excellent property that the original cover can be losslessly recovered after embedded data is extracted while protecting the image content's confidentiality. All previous methods embed data by reversibly vacating room from the encrypted images, which may be subject to some errors on data extraction and/or image restoration. Here propose a novel method by reserving room before encryption with a traditional RDH algorithm, and thus it is easy for the data hider to reversibly embed data in the encrypted image.

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