org.wildfly.security.x500.cert.KeyUsageExtension Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2016 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wildfly.security.x500.cert;

import java.util.Arrays;
import java.util.EnumSet;

import org.wildfly.common.Assert;
import org.wildfly.security.asn1.ASN1Encoder;
import org.wildfly.security.x500.X500;

/**
 * Key usage extension as defined by RFC 5280 § 4.2.1.3.
 *
 * @author David M. Lloyd
 */
public final class KeyUsageExtension extends X509CertificateExtension {
    private final EnumSet keyUsage;

    /**
     * Construct a new instance.
     *
     * @param keyUsage the key usage bits (must not be {@code null})
     */
    public KeyUsageExtension(final KeyUsage... keyUsage) {
        this(true, keyUsage);
    }

    /**
     * Construct a new instance.
     *
     * @param critical {@code true} to mark this extension as critical, {@code false} to mark it as non-critical
     * @param keyUsage the key usage bits (must not be {@code null})
     * @since 1.2.0
     */
    public KeyUsageExtension(final boolean critical, final KeyUsage... keyUsage) {
        super(critical);
        Assert.checkNotNullParam("keyUsage", keyUsage);
        this.keyUsage = EnumSet.copyOf(Arrays.asList(keyUsage));
    }

    public String getId() {
        return X500.OID_CE_KEY_USAGE;
    }

    public void encodeTo(final ASN1Encoder encoder) {
        encoder.encodeBitString(keyUsage);
    }
}