org.bouncycastle.pqc.crypto.xmss.OTSHashAddress Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcprov-ext-debug-jdk18on Show documentation

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for Java 1.8 and later with debug enabled.

The newest version!

package org.bouncycastle.pqc.crypto.xmss;

import org.bouncycastle.util.Pack;

/**
 * OTS hash address.
 */
final class OTSHashAddress
    extends XMSSAddress
{

    private static final int TYPE = 0x00;

    private final int otsAddress;
    private final int chainAddress;
    private final int hashAddress;

    private OTSHashAddress(Builder builder)
    {
        super(builder);
        otsAddress = builder.otsAddress;
        chainAddress = builder.chainAddress;
        hashAddress = builder.hashAddress;
    }

    protected static class Builder
        extends XMSSAddress.Builder
    {

        /* optional */
        private int otsAddress = 0;
        private int chainAddress = 0;
        private int hashAddress = 0;

        protected Builder()
        {
            super(TYPE);
        }

        protected Builder withOTSAddress(int val)
        {
            otsAddress = val;
            return this;
        }

        protected Builder withChainAddress(int val)
        {
            chainAddress = val;
            return this;
        }

        protected Builder withHashAddress(int val)
        {
            hashAddress = val;
            return this;
        }

        protected XMSSAddress build()
        {
            return new OTSHashAddress(this);
        }

        protected Builder getThis()
        {
            return this;
        }
    }

    protected byte[] toByteArray()
    {
        byte[] byteRepresentation = super.toByteArray();
        Pack.intToBigEndian(otsAddress, byteRepresentation,16);
        Pack.intToBigEndian(chainAddress, byteRepresentation, 20);
        Pack.intToBigEndian(hashAddress, byteRepresentation, 24);
        return byteRepresentation;
    }

    protected int getOTSAddress()
    {
        return otsAddress;
    }

    protected int getChainAddress()
    {
        return chainAddress;
    }

    protected int getHashAddress()
    {
        return hashAddress;
    }
}