Security Analysis of Bit plane Level Image Encryption Schemes
Keywords: Bit-plane characteristics, Cryptography, Encryption, Histogram equalisation, Image processing, Selective bit-plane encryption
AbstractA selective bit-plane encryption scheme was proposed for securing the transmission of image data in mobile environments with a claim that it provides a high security viz. the encryption of the four most significant bit-planes is sufficient for a high image data security. This paper presents the security analysis of the said encryption scheme and reports new important results. We perform the security analysis of the bit-level encryption by considering the normal images and their histogram equalised enhanced images. We consider different bit-plane aspects to analyse the security of the image encryption, and show that the encryption of the four most significant bit-planes is not adequate. The contents of the images can be obtained even when all the bit-planes except one least significant bit-plane are encrypted in the histogram equalised images as shown in the results. The bit-plane level security analysis seems very useful for the analysis of the bit-plane level image encryption schemes.
How to Cite
Ratan, R., & Yadav, A. (2021). Security Analysis of Bit plane Level Image Encryption Schemes. Defence Science Journal, 71(2), 209-221. https://doi.org/10.14429/dsj.71.15643
Computers & Systems Studies
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