Simple Rail Fence - Encryption using C program.

Rail fence Simple - Encryption implementation using C program.

#include<stdio.h>
int main()
{
  char str[20]="HelloStudent", str1[10]="", str2[10]="";
  int i, cnt1=0, cnt2=0;
  printf("Rail Fence - Encryption\n\n");
  printf("Plain Text: HelloStudent\n\n");

  for(i=0; i<strlen(str); i++)
  {
    if( i%2 == 0)
    {
      str1[cnt1++]=str[i];
    }
    else
  str2[cnt2++]=str[i];
  }
  printf("Cipher Text: %s%s",str1,str2);
  return 0;
}

Output of the program:

Rail Fence - Encryption

Plain Text: HelloStudent

Cipher Text: HlotdnelSuet

* * * * *
* * * * *