Packages

feistel_cipher

0.8.2
1.1.0 1.0.0 0.15.0 0.14.0 0.13.4 0.13.3 0.13.2 0.13.1 0.13.0 0.12.1 0.12.0 0.11.0 0.10.0 0.9.4 0.9.3 0.9.2 0.9.1 0.9.0 0.8.2 0.8.1 0.8.0 0.7.1 0.7.0 0.6.1 0.6.0 0.5.0 0.4.2 0.4.0 0.3.0 0.2.0 0.1.0

Encrypted integer IDs using Feistel cipher

HexDocs

Current section

Files

Jump to
Readme
31 Versions
2 Dependencies
Dependants
Files
Activity
feistel_cipher assets feistel-diagram.dot
Raw

assets/feistel-diagram.dot 

digraph feistel {

    rankdir=TB;

    node [shape=box, style=filled, fontname="Arial", fontsize=11, margin=0.15, height=0.4];

    edge [arrowsize=0.7];

    

    // Input

    input [label="Input: N bits", fillcolor="#e1f5ff", shape=ellipse];

    

    // Split

    subgraph cluster_0 {

        label="Split";

        style=rounded;

        color="#999999";

        margin=12;

        L0 [label="L₀\n(Left)", fillcolor="#ffe1e1"];

        R0 [label="R₀\n(Right)", fillcolor="#e1ffe1"];

        {rank=same; L0; R0;}

    }

    

    // Round 1

    subgraph cluster_1 {

        label="Round 1";

        style=rounded;

        color="#999999";

        margin=12;

        L1 [label="L₁", fillcolor="#ffe1e1"];

        F1 [label="F(R₀)", fillcolor="#fff4e1"];

        XOR1 [label="⊕", fillcolor="white", shape=circle, width=0.4, fixedsize=true];

        R1 [label="R₁", fillcolor="#e1ffe1"];

        {rank=same; L1; F1; XOR1; R1;}

    }

    

    // Round 2

    subgraph cluster_2 {

        label="Round 2";

        style=rounded;

        color="#999999";

        margin=12;

        L2 [label="L₂", fillcolor="#ffe1e1"];

        F2 [label="F(R₁)", fillcolor="#fff4e1"];

        XOR2 [label="⊕", fillcolor="white", shape=circle, width=0.4, fixedsize=true];

        R2 [label="R₂", fillcolor="#e1ffe1"];

        {rank=same; L2; F2; XOR2; R2;}

    }

    

    // Round 3

    subgraph cluster_3 {

        label="Round 3";

        style=rounded;

        color="#999999";

        margin=12;

        L3 [label="L₃", fillcolor="#ffe1e1"];

        F3 [label="F(R₂)", fillcolor="#fff4e1"];

        XOR3 [label="⊕", fillcolor="white", shape=circle, width=0.4, fixedsize=true];

        R3 [label="R₃", fillcolor="#e1ffe1"];

        {rank=same; L3; F3; XOR3; R3;}

    }

    

    // Round 4

    subgraph cluster_4 {

        label="Round 4";

        style=rounded;

        color="#999999";

        margin=12;

        L4 [label="L₄", fillcolor="#ffe1e1"];

        F4 [label="F(R₃)", fillcolor="#fff4e1"];

        XOR4 [label="⊕", fillcolor="white", shape=circle, width=0.4, fixedsize=true];

        R4 [label="R₄", fillcolor="#e1ffe1"];

        {rank=same; L4; F4; XOR4; R4;}

    }

    

    // Swap

    subgraph cluster_5 {

        label="Swap";

        style=rounded;

        color="#999999";

        margin=12;

        L5 [label="L₅", fillcolor="#ffe1e1"];

        R5 [label="R₅", fillcolor="#e1ffe1"];

        {rank=same; L5; R5;}

    }

    

    // Output

    output [label="Output: N bits", fillcolor="#e1f5ff", shape=ellipse];

    

    // Connections

    input -> L0 [weight=2];

    input -> R0 [weight=2];

    

    // Round 1

    L0 -> XOR1;

    R0 -> F1;

    R0 -> L1 [style=dashed, label="copy", fontsize=9];

    F1 -> XOR1;

    XOR1 -> R1;

    

    // Round 2

    L1 -> XOR2;

    R1 -> F2;

    R1 -> L2 [style=dashed, label="copy", fontsize=9];

    F2 -> XOR2;

    XOR2 -> R2;

    

    // Round 3

    L2 -> XOR3;

    R2 -> F3;

    R2 -> L3 [style=dashed, label="copy", fontsize=9];

    F3 -> XOR3;

    XOR3 -> R3;

    

    // Round 4

    L3 -> XOR4;

    R3 -> F4;

    R3 -> L4 [style=dashed, label="copy", fontsize=9];

    F4 -> XOR4;

    XOR4 -> R4;

    

    // Swap

    L4 -> R5 [label="swap", fontsize=9];

    R4 -> L5 [label="swap", fontsize=9];

    

    L5 -> output [weight=2];

    R5 -> output [weight=2];

}