Design and implementation of Threefish cipher algorithm in PNG file

Sustainable Engineering and Innovation Pub Date : 2021-05-29 DOI:10.37868/sei.v3i2.id131

A. Nori, A. Abdulmajeed

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引用次数: 5

Abstract

This paper is presenting design and implementation of Threefish block cipher on grayscale images. Despite the fact that Threefish block cipher is one of the best secure algorithms, most studies concerning Threefish have focused on hardware implementation and have not commonly been applied on image encryption due to huge amount of data. The main contribution here was to reduce the time and the amount of data to be encrypted while maintaining encryption performance. This objective was achieved by encrypting just the most significant bits of image pixels. A 256-bit plain text blocks of the Threefish was constructed from 2n most significant bits of the pixels, where 0

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PNG文件中三鱼密码算法的设计与实现

本文介绍了基于灰度图像的三鱼分组密码的设计与实现。尽管Threefish分组密码是目前最安全的算法之一，但大多数关于Threefish分组密码的研究都集中在硬件实现上，由于数据量巨大，很少应用于图像加密。这里的主要贡献是在保持加密性能的同时减少了要加密的时间和数据量。这个目标是通过只加密图像像素中最重要的位来实现的。Threefish的256位纯文本块由像素的2n个最有效位组成，其中0

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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