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基于一般化三角形组的S-box结构,用于安全的图像加密.

Aqsa Zafar Abbasi1, Ayesha Rafiq1, Ines Hilali Jaghdam2

  • 1Department of Applied Mathematics and Statistics, Institute of Space Technology, Islamabad, 44000, Pakistan.

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概括

本研究介绍了一种新的S-box设计,使用通用三角组 (GTG) 进行增强的RGB图像加密. 与现有技术相比,新方法提供了优越的非线性和加密分析阻力.

关键词:
代数密码学代数密码学一般化的三角形组.在 RGB 图像加密.这是一个S-Box.

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科学领域:

  • 密码学和网络安全
  • 应用数学 应用数学 应用数学
  • 数字图像处理 数字图像处理

背景情况:

  • 网络图像安全对于在不安全的网络上传输敏感数据至关重要.
  • 现有的图像加密方法往往缺乏安全性,效率或灵活性.
  • 传统的S-box设计和混乱地图在抵抗加密分析方面存在局限性.

研究的目的:

  • 提出一种新的S-box设计方法,使用通用三角组 (GTG) 来进行强大的图像加密.
  • 在RGB图像加密系统中评估拟议的S-box的加密特性和性能.
  • 为了证明基于GTG的方法优于最先进的方法.

主要方法:

  • 对GTG进行数学参数化,以创建非线性和 bijective S 框.
  • 对密码学属性的分析:非线性,差异统一性,严格的雪崩标准 (SAC) 和抗攻击性.
  • 将设计的S框集成到RGB图像加密方案中,用于替换和换.

主要成果:

  • 拟议的S盒表现出高的非线性 (112) 和平衡的SAC (≈0.50).
  • 在高 (≈8.0),NPCR (>99.8%) 和UACI (≈33.3%) 的线性和差异性攻击中获得了出色的抵抗力.
  • 与现有算法相比,证明了优越的扩散和混特性.

结论:

  • 基于GTG的S-box设计为RGB图像加密提供了增强的非线性,扩散和混.
  • 拟议的方案提供了更好的加密分析阻力和可比的计算效率.
  • 这种方法代表了网络安全图像通信的重大进步.