Analysis of Reversible Data Hiding Technique in Encrypted Domain

Sanju Sharma; sanju sharma; Saranjeet Singh

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25-Dec-23

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Analysis of Reversible Data Hiding Technique in Encrypted Domain

Author(s):

Sanju Sharma , GALAXY GLOBAL EDUCATIONAL GROUP OF INSTITUTIONS, DINARPUR, AMBALA; sanju sharma, GALAXY GLOBAL EDUCATIONAL TRUST’SGROUP OF INSTITUTIONS, DINARPUR, AMBALA; Saranjeet Singh, GALAXY GLOBAL EDUCATIONAL TRUST’SGROUP OF INSTITUTIONS, DINARPUR, AMBALA

Keywords:

Reversible Data Hiding, Encryption, Decryption, Estimation.

Abstract:

A novel Reversible data hiding technique in encrypted image is presented in this paper. Reversible data hiding in encrypted images maintains the excellent property, that the original cover can be losslessly recovered after embedded data is extracted while protecting the content’s security. In Reversible Data hiding technique instead of embedding data in encrypted Image directly some pixels are estimated before encryption so that additional data can be embedded in the estimating error.RC4 algorithm is applied to the rest pixels of the image and a special encryption scheme is designed to encrypt the estimating error. Without the encryption key one cannot get access to the original image. Providing with data hiding key only one can embed in or extract from the encrypted image additional data without knowledge of the original images.In other words ,data extraction and image recovery are free of error for all images .Experiments gives the feasibility and efficiency of proposed method. Especially in aspects of embedding rate versus Peak Signal-to-Noise Ratio (PSNR).