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Design Example01:23

Design Example

698
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
698
Deconvolution01:20

Deconvolution

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Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
764
Signal Flow Graphs01:18

Signal Flow Graphs

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Signal-flow graphs offer a streamlined and intuitive approach to representing control systems, providing an alternative to traditional block diagrams. These graphs use branches to symbolize systems and nodes to represent signals, effectively illustrating the relationships and interactions within the system.
In a signal-flow graph, branches denote the system's transfer functions, while nodes represent the signals. The direction of signal flow is indicated by arrows, with the corresponding...
843
Transformations of Functions III01:20

Transformations of Functions III

304
Transformations modify the graphical representation of a function without changing its fundamental form. One common transformation is reflection, which flips the graph across a designated axis. When the vertical coordinates of all points are multiplied by the negative one, the entire graph is mirrored over the horizontal axis. This transformation reverses the vertical orientation of peaks and troughs, akin to signal inversion in electrical systems, where a waveform is flipped, but the timing of...
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ダイナミック・ロンブス・トランスフォーメーションとデジタル・チューブ・モデルに基づく画像暗号化アルゴリズム

Xiaoqiang Zhang1, Yupeng Song1, Ke Huang1

  • 1School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China.

Entropy (Basel, Switzerland)
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まとめ
この要約は機械生成です。

この研究では,ダイナミックロムブス変換とデジタルチューブモデルを使用して新しい画像暗号化アルゴリズムを導入します. この方法は,さまざまな攻撃に対する画像のセキュリティを強化し,安全な保存と送信を保証します.

キーワード:
マンハッタン距離混沌としたシステムダイナミックな拡散ダイナミックロムブス変換画像の暗号化

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科学分野:

  • コンピュータ科学
  • 暗号化
  • 情報セキュリティ

背景:

  • 画像データは,情報技術の急速な進歩により,セキュリティリスクに脆弱です.
  • 効果的な画像暗号化は,デジタル画像の安全な保存と送信に不可欠です.

研究 の 目的:

  • セキュリティ強化のための新しい画像暗号化アルゴリズムを提案する.
  • ダイナミックロムブス変換と デジタルチューブモデルを利用して 堅牢な暗号化を行う.

主な方法:

  • サイネス,キュービック,メイの地図を組み合わせて 2次元ハイパーカオティックなシステムを構築した.
  • 混沌としたシーケンスで制御されたピクセルスクランブルにはダイナミックロムブス変換が使用されました.
  • 混沌としたシーケンスとビット操作を使用して,ピクセル値の拡散のためにデジタルチューブモデルが設計されました.

主要な成果:

  • ハイブリッドカオスマップは 卓越したカオス特性を示しました
  • 提案されたアルゴリズムは,高い情報エントロピー (7.9993) と低い相関係数 (水平: 0.0008,垂直: 0.0001,対角: 0.0005) を達成した.
  • アルゴリズムは 騒音やカットや 徹底的な攻撃に強い抵抗性を示しました

結論:

  • 開発された画像暗号アルゴリズムは,画像データを効果的に保護します.
  • ダイナミック・ロンブス・トランスフォーメーションとデジタル・チューブ・モデルの組み合わせにより,様々なセキュリティー脅威から強力な保護が提供されます.