Digital Image Encryption Technique using Block Based Scrambling and Substitution

Punita Kumari

Digital Image Encryption Technique using Block Based Scrambling and Substitution

Punita Kumari * §

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Digital Image Encryption Technique using Block Based Scrambling and Substitution

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Abstract

A novel non-chaos based digital image encryption technique using a combination of diffusion and substitution process has been presented. A secret key of 128 bit sizes is used in the algorithm. In the diffusion (permutation) method, image is divided into different dynamic blocks which are key dependent. Further, each block is made to pass through eight rounds of permutation process. In this process, a zigzag mechanism is used to scramble the block pixels within the block. Then the resultant image i.e. the partially encrypted image is divided into various key based dynamic sub-images. Pixels of the sub-images are replaced with another pixel values within the block when each of the sub-images are passed through the substitution process. The substitution process comprises of four rounds. The proposed scheme is then compared with the standard AES algorithm. Investigation outcome shows that the proposed design methodology is efficient, fast and secure.

References

17 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Punita Kumari. 2017. "Digital Image Encryption Technique using Block Based Scrambling and Substitution". Global Journal of Computer Science and Technology - F: Graphics & Vision GJCST-F Volume 17 (GJCST Volume 17 Issue F1).

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GJCST Volume 17 Issue F1

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Journal Specifications

Crossref Journal DOI 10.17406/gjcst

Print ISSN 0975-4350

e-ISSN 0975-4172

Keywords

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Classification

GJCST-F Classification B.4.2

H.2.8

Submission ReceivedDecember 14, 2016
Peer Review Double Blind
Handling Editor
Accepted January 1, 2017
Published January 15, 2017

Version of record

v1.2

Issue date

April 4, 2017

Language

English

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Article Matrices

Total Score: 142

Country: India

Subject: Global Journal of Computer Science and Technology

Authors: Punita Kumari, Kalpana Jain (PhD/Dr. count: 0)

View Count (all-time): 384

Total Views (Real + Logic): 2722

Total Downloads (simulated): 240

Publish Date: 2017 01, Sun

Monthly Totals (Real + Logic):

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Total Views: 2.7K

Total Downloads: 240

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