org.wiztools.commons

Class RotN

java.lang.Object

org.wiztools.commons.RotN

public final class RotN
extends Object

This class is an implementation of the ROT-N algorithm. The algorithm implemented in this class dynamically creates the lookup table.

Author:

subhash

Method Summary

Methods

Modifier and Type	Method and Description
static String	cipher(int n, String inString) To cipher a String using ROT-N algorithm.
static String	deCipher(int n, String inString) To decipher a String using ROT-N algorithm.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

cipher

public static String cipher(int n,
            String inString)
                     throws IllegalArgumentException

To cipher a String using ROT-N algorithm.

Parameters:

n - The value of N in ROT-N.

inString - The input string.

Returns:

The ciphered value.

Throws:

IllegalArgumentException - When n is not within range.

deCipher

public static String deCipher(int n,
              String inString)
                       throws IllegalArgumentException

To decipher a String using ROT-N algorithm.

Parameters:

n - The value of N in ROT-N.

inString - The input string.

Returns:

The deciphered value.

Throws:

IllegalArgumentException - When n is not within range.