EnigmAndroid/app/src/main/java/de/vanitasvitae/enigmandroid/enigma/Plugboard.java

57 lines
1.5 KiB
Java

package de.vanitasvitae.enigmandroid.enigma;
/**
* Plugboard of the enigma
* Copyright (C) 2015 Paul Schaub
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* @author vanitasvitae
*/
public class Plugboard
{
public static final int[] empty = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
private int[] plugs;
public Plugboard()
{
plugs = empty;
}
public Plugboard(int[] conf)
{
this.plugs = conf;
}
public void setConfiguration(int[] conf)
{
this.plugs = conf;
}
public int[] getConfiguration()
{
return this.plugs;
}
/**
* Encrypt input via plugboard connections
* @param input input symbol to encryptString
* @return encrypted symbol
*/
public int encrypt(int input)
{
return plugs[(input+plugs.length)%plugs.length];
}
}