/**
 * Copyright (c) 2013-2014 Philipp Jakubeit, Signe Rüsch, Dominik Schürmann
 * Copyright (c) 2000-2013 The Legion of the Bouncy Castle Inc. (http://www.bouncycastle.org)
 *
 * Licensed under the Bouncy Castle License (MIT license). See LICENSE file for details.
 */

package org.spongycastle.openpgp.operator.jcajce;

import org.spongycastle.openpgp.PGPException;
import org.spongycastle.openpgp.PGPPrivateKey;
import org.spongycastle.openpgp.operator.PGPContentSigner;
import org.spongycastle.openpgp.operator.PGPContentSignerBuilder;
import org.spongycastle.openpgp.operator.PGPDigestCalculator;

import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.security.Provider;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;


/**
 * This class is based on JcaPGPContentSignerBuilder.
 *
 * Instead of using a Signature object based on a privateKey, this class only calculates the digest
 * of the output stream and gives the result back using a RuntimeException.
private Map signedHashes;

    public static class NfcInteractionNeeded extends RuntimeException
    {
        public byte[] hashToSign;
        public int hashAlgo;

        public NfcInteractionNeeded(byte[] hashToSign, int hashAlgo)
        {
            super("NFC interaction required!");
            this.hashToSign = hashToSign;
            this.hashAlgo = hashAlgo;
        }
    }

    public NfcSyncPGPContentSignerBuilder(int keyAlgorithm, int hashAlgorithm, long keyID, Map signedHashes)
    {
        this.keyAlgorithm = keyAlgorithm;
        this.hashAlgorithm = hashAlgorithm;
        this.keyID = keyID;
        this.signedHashes = signedHashes;
    }

    public NfcSyncPGPContentSignerBuilder setProvider(Provider provider)
    {
        digestCalculatorProviderBuilder.setProvider(provider);

        return this;
    }

    public NfcSyncPGPContentSignerBuilder setProvider(String providerName)
    {
        digestCalculatorProviderBuilder.setProvider(providerName);

        return this;
    }

    public NfcSyncPGPContentSignerBuilder setDigestProvider(Provider provider)
    {
        digestCalculatorProviderBuilder.setProvider(provider);

        return this;
    }

    public NfcSyncPGPContentSignerBuilder setDigestProvider(String providerName)
    {
        digestCalculatorProviderBuilder.setProvider(providerName);

        return this