SecretInteger.java

import java.io.Serializable;

/**
 * Project: SecretValues
 * Author: User
 * Created: May 17, 2017
 */
public final class SecretInteger implements SecretValue<Integer>,
        Cloneable, Comparable<SecretInteger>, Serializable
{
    /** Key used encrypt/decrypt the SecretInteger. */
    private static final int SECRET_KEY = 256724234;
    private static final int MODIFIER = 12312423;
    /** Encrypted state of the integer. */
    private long obfuscated;

    public SecretInteger(final int value)
    {
        set(value);
    }

    /**
     * Obfuscates the data in the parameter.
     * This function is called internally to protect
     * the contents of the SecretValue.
     *
     * @param data - Data to obfuscate.
     */
    @Override
    public void obfuscate(Integer data)
    {
        obfuscated = (long)(SECRET_KEY ^ data) * SECRET_KEY + MODIFIER;
    }

    /**
     * Un-does the obfuscation process.
     * The function is called internally to reveal
     * the protected contents of the SecretValue.
     *
     * @return - The un-obfuscated value of the SecretValue.
     */
    @Override
    public Integer deObfuscate()
    {
        return (int)(SECRET_KEY ^ ((obfuscated - MODIFIER) / SECRET_KEY));
    }

    /**
     * Returns the value inside this SecretValue.
     *
     * @return - The value of the SecretValue.
     */
    @Override
    public Integer get()
    {
        return deObfuscate();
    }

    /**
     * Sets the data inside the SecretValue to a different value.
     *
     * @param newValue - Value which will be set.
     */
    @Override
    public void set(Integer newValue)
    {
        obfuscate(newValue);
    }

    @Override
    public int compareTo(SecretInteger o)
    {
        return get().compareTo(o.get());
    }

    @Override
    protected Object clone() throws CloneNotSupportedException
    {
        return new SecretInteger(get());
    }

    @Override
    public String toString()
    {
        return get().toString();
    }
}