Version 1
: Received: 3 July 2021 / Approved: 5 July 2021 / Online: 5 July 2021 (18:42:36 CEST)
How to cite:
Thenmozhi, R.; Rajeyyagari, S.; Balamuralitharan, S. A New Symmetric Image Encryption Scheme Based on Block Level Processing Using Hash Function and AES. Preprints2021, 2021070121. https://doi.org/10.20944/preprints202107.0121.v1
Thenmozhi, R.; Rajeyyagari, S.; Balamuralitharan, S. A New Symmetric Image Encryption Scheme Based on Block Level Processing Using Hash Function and AES. Preprints 2021, 2021070121. https://doi.org/10.20944/preprints202107.0121.v1
Thenmozhi, R.; Rajeyyagari, S.; Balamuralitharan, S. A New Symmetric Image Encryption Scheme Based on Block Level Processing Using Hash Function and AES. Preprints2021, 2021070121. https://doi.org/10.20944/preprints202107.0121.v1
APA Style
Thenmozhi, R., Rajeyyagari, S., & Balamuralitharan, S. (2021). A New Symmetric Image Encryption Scheme Based on Block Level Processing Using Hash Function and AES. Preprints. https://doi.org/10.20944/preprints202107.0121.v1
Chicago/Turabian Style
Thenmozhi, R., Sivaram Rajeyyagari and S. Balamuralitharan. 2021 "A New Symmetric Image Encryption Scheme Based on Block Level Processing Using Hash Function and AES" Preprints. https://doi.org/10.20944/preprints202107.0121.v1
Abstract
Data could be in many forms like text, image, audio, video and many others. Amongst these data, processing image is of important concern even with sophisticated technologies. Generally, images consume more storage space and processing time. This work aims in attaining a novel image encryption strategy that consumes very less computational time with maximum security. The idea is to split the image into blocks and rearrange the pixels in diagonal fashion to achieve confusion. Next, the blocks are combined to form sub images and one block of the sub image is subjected to Secure Hash Algorithm (SHA 512 bits). The SHA bits are XORed with the remaining blocks of the sub image. Finally, the entire image is encrypted using Advanced Encryption Standard (AES). Decryption process is the exact reverse of encryption process. The computational overhead is very low, and security is efficient. The results are compared with existing encryption techniques.
Keywords
Encryption; Decryption; Security; SHA; AES
Subject
Engineering, Automotive Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
