de.rub.nds.x509attacker.x509.serializer.X509ChoiceSerializer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of x509-attacker Show documentation

X.509-Attacker is a tool based on ASN.1 Tool for creating arbitrary certificates; including especially invalid and malformed certificates. Since X.509 certificates encode their contents in ASN.1, this tool extends the features of ASN.1 Tool in terms of certificate signing. Also, X.509-Attacker introduces a feature of referencing XML elements in order to avoid redundancies when defining certificates in XML.

The newest version!

/*
 * X.509-Attacker - A Library for Arbitrary X.509 Certificates
 *
 * Copyright 2014-2023 Ruhr University Bochum, Paderborn University, Technology Innovation Institute, and Hackmanit GmbH
 *
 * Licensed under Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0.txt
 */
package de.rub.nds.x509attacker.x509.serializer;

import de.rub.nds.asn1.model.Asn1Choice;
import de.rub.nds.asn1.model.Asn1Encodable;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class X509ChoiceSerializer implements X509Serializer {

    @SuppressWarnings("unused")
    private final Logger LOGGER = LogManager.getLogger();

    private final Choice choice;

    public X509ChoiceSerializer(Choice choice) {
        this.choice = choice;
    }

    @Override
    public byte[] serialize() {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        Asn1Encodable selectedChoice = choice.getSelectedChoice();
        try {
            outputStream.write(selectedChoice.getTagOctets().getValue());
            outputStream.write(selectedChoice.getLengthOctets().getValue());
            outputStream.write(selectedChoice.getContent().getValue());
        } catch (IOException e) {

        }
        return outputStream.toByteArray();
    }
}