<fim-prefix><fim-middle>g.bouncycastle.pqc.jcajce.provider.xmss;

import java.io.IOException;
import java.security.PrivateKey;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.pkcs.PrivateKeyI<fix-suffix>nfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.pqc.asn1.PQCObjectIdentifiers;
import org.bouncycastle.pqc.asn1.XMSSKeyParams;
import org.bouncycastle.pqc.asn1.XMSSPrivateKey;
import org.bouncycastle.pqc.crypto.xmss.BDS;
import org.bouncycastle.pqc.crypto.xmss.XMSSParameters;
import org.bouncycastle.pqc.crypto.xmss.XMSSPrivateKeyParameters;
import org.bouncycastle.pqc.crypto.xmss.XMSSUtil;
import org.bouncycastle.pqc.jcajce.interfaces.XMSSKey;
import org.bouncycastle.util.Arrays;

public class BCXMSSPrivateKey
    implements PrivateKey, XMSSKey
{
    private final XMSSPrivateKeyParameters keyParams;
    private final ASN1ObjectIdentifier treeDigest;

    public BCXMSSPrivateKey(
        ASN1ObjectIdentifier treeDigest,
        XMSSPrivateKeyParameters keyParams)
    {
        this.treeDigest = treeDigest;
        this.keyParams = keyParams;
    }

    public BCXMSSPrivateKey(PrivateKeyInfo keyInfo)
        throws IOException
    {
        XMSSKeyParams keyParams = XMSSKeyParams.getInstance(keyInfo.getPrivateKeyAlgorithm().getParameters());
        this.treeDigest = keyParams.getTreeDigest().getAlgorithm();

        XMSSPrivateKey xmssPrivateKey = XMSSPrivateKey.getInstance(keyInfo.parsePrivateKey());

        try
        {
            XMSSPrivateKeyParameters.Builder keyBuilder = new XMSSPrivateKeyParameters
                .Builder(new XMSSParameters(keyParams.getHeight(), DigestUtil.getDige<|endoftext|>