org.esteid.jca.CardDelegate Maven / Gradle / Ivy

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/**
 * Copyright (c) 2014-2017 Martin Paljak
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.esteid.jca;

import apdu4j.LoggingCardTerminal;
import apdu4j.TerminalManager;
import org.esteid.EstEID;

import javax.smartcardio.Card;
import javax.smartcardio.CardChannel;
import javax.smartcardio.CardException;
import javax.smartcardio.CardTerminal;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.SignatureException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

public class CardDelegate extends AbstractDelegate {
    private final boolean sign;
    private final EstEID e;
    private final NotificationInterface notify;

    protected CardDelegate(CardChannel channel, boolean sign, NotificationInterface notify) {
        e = EstEID.getInstance(channel);
        this.sign = sign;
        this.notify = notify;
    }

    public static CardDelegate any(boolean sign, NotificationInterface console) throws CardException {
        CardTerminal t = EstEID.getTerminal();
        if (t == null) {
            return null;
        }
        t = LoggingCardTerminal.getInstance(t);
        Card c = t.connect("*");
        return new CardDelegate(c.getBasicChannel(), sign, console == null ? CONSOLE : console);
    }

    @Override
    public X509Certificate readCertificate() throws CertificateException {
        try {
            return sign ? e.readSignCert() : e.readAuthCert();
        } catch (CardException | EstEID.EstEIDException e) {
            throw new CertificateException("Failed to read certificate", e);
        }
    }

    @Override
    public byte[] getSignature(byte[] dtbs, String algorithm) throws SignatureException {

        try {
            if (!algorithm.equals("NONEwithRSA")) {
                MessageDigest md = MessageDigest.getInstance(AbstractDelegate.hashAlgos.get(algorithm));

                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                baos.write(AbstractDelegate.digestInfos.get(algorithm));
                baos.write(md.digest(dtbs));
                dtbs = baos.toByteArray();
            }
        } catch (GeneralSecurityException | IOException e) {
            e.printStackTrace();
            throw new SignatureException("No hash", e);
        }

        try {
            String pin = notify.askPinCode("Please enter PIN" + (sign ? "2" : "1"));
            return sign ? e.sign(dtbs, pin) : e.authenticate(dtbs, pin);
        } catch (CardException | EstEID.EstEIDException | EstEID.WrongPINException e) {
            throw new SignatureException("Failed to sign", e);
        }
    }

    @Override
    public String getName() {
        return "javax.smartcardio";
    }

}