Security Analysis of Bit plane Level Image Encryption Schemes

Defence science journal

article

Ram Ratan¹  Arvind Yadav² 

[1] DRDO-Scientific Analysis Group;Hansraj College, University of Delhi

关键词: Bit-plane characteristics;    Cryptography;    Encryption;    Histogram equalisation;    Image processing;    Selective bit-plane encryption;   

DOI  :  10.14429/dsj.71.15643

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

A 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 bitplane 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.

【 授权许可】

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