org.eclipse.osgi.internal.signedcontent.SignerInfoImpl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of org.eclipse.osgi Show documentation

This is org.eclipse.osgi jar used by Scout SDK

There is a newer version: 3.11.0.v20160603-1336

/*******************************************************************************
 * Copyright (c) 2007, 2012 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 ******************************************************************************/
package org.eclipse.osgi.internal.signedcontent;

import java.security.cert.Certificate;
import org.eclipse.osgi.signedcontent.SignerInfo;

public class SignerInfoImpl implements SignerInfo {
	private final Certificate[] chain;
	private final String mdAlgorithm;
	volatile private Certificate trustAnchor;

	public SignerInfoImpl(Certificate[] chain, Certificate trustAnchor, String mdAlgorithm) {
		this.chain = chain;
		this.trustAnchor = trustAnchor;
		this.mdAlgorithm = mdAlgorithm;
	}

	public Certificate[] getCertificateChain() {
		return chain;
	}

	public Certificate getTrustAnchor() {
		return trustAnchor;
	}

	public boolean isTrusted() {
		return trustAnchor != null;
	}

	void setTrustAnchor(Certificate trustAnchor) {
		this.trustAnchor = trustAnchor;
	}

	public String getMessageDigestAlgorithm() {
		return mdAlgorithm;
	}

	public int hashCode() {
		int result = mdAlgorithm.hashCode();
		for (int i = 0; i < chain.length; i++)
			result += chain[i].hashCode();
		// Note that we do not hash based on trustAnchor;
		// this changes dynamically but we need a constant hashCode for purposes of 
		// hashing in a Set.
		return result;
	}

	public boolean equals(Object obj) {
		if (!(obj instanceof SignerInfo))
			return false;
		if (obj == this)
			return true;
		SignerInfo other = (SignerInfo) obj;
		if (!mdAlgorithm.equals(other.getMessageDigestAlgorithm()))
			return false;
		Certificate[] otherCerts = other.getCertificateChain();
		if (otherCerts.length != chain.length)
			return false;
		for (int i = 0; i < chain.length; i++)
			if (!chain[i].equals(otherCerts[i]))
				return false;
		return trustAnchor == null ? other.getTrustAnchor() == null : trustAnchor.equals(other.getTrustAnchor());
	}
}