Transposition ( railfence ) Cipher Encryption Technique.

Implementation of transposition(railfence) cipher technique.

Concept: this way to encrypt data is used by trans-positioning data in rows.

For example: we have a plaintext CTUniversity and key is 3 then encryption will accur like this:-

C                                      I                                       S

          T                  N                 V                 R                  I                   Y

                    U                                     E                                      T       

And cipher text will written as- CISTNVRIYUET

C++ program:

#include<iostream>

#include<string.h>

#include<string>

using namespace std;

int main()

{

    int i,len,j=0,k=0;

    char plain[15],cip[15],str1[10],str2[10];

    cout<<"Enter Plain Text:";

    cin>>plain;

    cout<<endl;

    len=strlen(plain);

    for(i=0;i<len;i++)

    {

        if(i%2==0)

        {

            str1[j]=plain[i];

            j++;

        }

        else

            {

                str2[k]=plain[i];

                k++;

            }

        }

    j=0;

    cout<<"Str1:"<<str1<<endl<<"Str2:"<<str2;

}

Demo: I will perform a live web demo for railfence cipher.

url is : http://crypto.interactive-maths.com/rail-fence-cipher.html

·       Enter your plaintext

·       Give key for encryption

·       Press encrypt button

·       Output will be shown below in a box

Tools:

·       http://crypto.interactive-maths.com/rail-fence-cipher.html

·       https://www.dcode.fr/rail-fence-cipher

·       https://www.geocachingtoolbox.com/index.php?page=railFenceCipher

·       https://www.braingle.com/brainteasers/codes/railfence.php

·       http://www.hanginghyena.com/solvers/rail-fence-cipher-decoder

·       Railfence cipher in c or c++ language coding

 Resources:

·       http://crypto.interactive-maths.com/rail-fence-cipher.html   online performing

·       https://www.dcode.fr/rail-fence-cipher                online performing

·      https://www.geocachingtoolbox.com/index.php?page=railFenceCipher   online performing

·       https://www.braingle.com/brainteasers/codes/railfence.php             online performing

·      http://www.hanginghyena.com/solvers/rail-fence-cipher-decoder          online performing

·      https://stackoverflow.com/questions/22573871/rail-fence-cipher-algorithm-c  algorithem in c language

·       https://www.youtube.com/watch?v=27EgALog5Xk   youtube tutorial

https://en.wikipedia.org/wiki/Rail_fence_cipher