Class Zuc128Mac

core/src/main/java/org/bouncycastle/crypto/macs/Zuc128Mac.java:11–245

Zuc128 Mac implementation. Based on https://www.qtc.jp/3GPP/Specs/eea3eia3specificationv16.pdf

 * Based on https://www.qtc.jp/3GPP/Specs/eea3eia3specificationv16.pdf
 */
public final class Zuc128Mac
    implements Mac
{
    /**
     * The Maximum Bit Mask.
     */
    private static final int TOPBIT = 0x80;

    /**
     * The Zuc128 Engine.
     */
    private final InternalZuc128Engine theEngine;

    /**
     * The calculated Mac in words.
     */
    private int theMac;

    /**
     * The active keyStream.
     */
    private final int[] theKeyStream;

    /**
     * The initialised state.
     */
    private Zuc128CoreEngine theState;

    /**
     * The current word index.
     */
    private int theWordIndex;

    /**
     * The current byte index.
     */
    private int theByteIndex;

    /**
     * Constructor.
     */
    public Zuc128Mac()
    {
        theEngine = new InternalZuc128Engine();
        theKeyStream = new int[2];
    }

    /**
     * Obtain Algorithm Name.
     *
     * @return the name
     */
    public String getAlgorithmName()
    {
        return "Zuc128Mac";
    }

    /**