Package org.bouncycastle.bcpg

Examples of org.bouncycastle.bcpg.PublicKeyPacket

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        else
        {
            throw new PGPException("unknown key class");
        }

        this.publicPk = new PublicKeyPacket(algorithm, time, bcpgKey);
        this.ids = new ArrayList();
        this.idSigs = new ArrayList();

        try
        {
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        if (secKeyData == null || secKeyData.length < 1)
        {
            return null;
        }

        PublicKeyPacket pubPk = secret.getPublicKeyPacket();

        try
        {
            KeyFactory         fact;
            byte[]             data = extractKeyData(passPhrase, provider);
            BCPGInputStream    in = new BCPGInputStream(new ByteArrayInputStream(data));
       
            switch (pubPk.getAlgorithm())
            {
            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSAPublicBCPGKey        rsaPub = (RSAPublicBCPGKey)pubPk.getKey();
                RSASecretBCPGKey        rsaPriv = new RSASecretBCPGKey(in);
                RSAPrivateCrtKeySpec    rsaPrivSpec = new RSAPrivateCrtKeySpec(
                                                    rsaPriv.getModulus(),
                                                    rsaPub.getPublicExponent(),
                                                    rsaPriv.getPrivateExponent(),
                                                    rsaPriv.getPrimeP(),
                                                    rsaPriv.getPrimeQ(),
                                                    rsaPriv.getPrimeExponentP(),
                                                    rsaPriv.getPrimeExponentQ(),
                                                    rsaPriv.getCrtCoefficient());
                                   
                fact = KeyFactory.getInstance("RSA", provider);

                return new PGPPrivateKey(fact.generatePrivate(rsaPrivSpec), this.getKeyID());   
            case PGPPublicKey.DSA:
                DSAPublicBCPGKey    dsaPub = (DSAPublicBCPGKey)pubPk.getKey();
                DSASecretBCPGKey    dsaPriv = new DSASecretBCPGKey(in);
                DSAPrivateKeySpec   dsaPrivSpec =
                                            new DSAPrivateKeySpec(dsaPriv.getX(), dsaPub.getP(), dsaPub.getQ(), dsaPub.getG());

                fact = KeyFactory.getInstance("DSA", provider);

                return new PGPPrivateKey(fact.generatePrivate(dsaPrivSpec), this.getKeyID());
            case PGPPublicKey.ELGAMAL_ENCRYPT:
            case PGPPublicKey.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey    elPub = (ElGamalPublicBCPGKey)pubPk.getKey();
                ElGamalSecretBCPGKey    elPriv = new ElGamalSecretBCPGKey(in);
                ElGamalPrivateKeySpec   elSpec = new ElGamalPrivateKeySpec(elPriv.getX(), new ElGamalParameterSpec(elPub.getP(), elPub.getG()));
           
                fact = KeyFactory.getInstance("ElGamal", provider);
           
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            throw new IOException(
                "public key ring doesn't start with public key tag: " +
                "tag 0x" + Integer.toHexString(initialTag));
        }

        PublicKeyPacket pubPk = (PublicKeyPacket)pIn.readPacket();
        TrustPacket     trustPk = readOptionalTrustPacket(pIn);

        // direct signatures and revocations
        List keySigs = readSignaturesAndTrust(pIn);

        List ids = new ArrayList();
        List idTrusts = new ArrayList();
        List idSigs = new ArrayList();
        readUserIDs(pIn, ids, idTrusts, idSigs);

        keys.add(new PGPPublicKey(pubPk, trustPk, keySigs, ids, idTrusts, idSigs));


        // Read subkeys
        while (pIn.nextPacketTag() == PacketTags.PUBLIC_SUBKEY)
        {
            PublicKeyPacket pk = (PublicKeyPacket)pIn.readPacket();
            TrustPacket     kTrust = readOptionalTrustPacket(pIn);

            // PGP 8 actually leaves out the signature.
            List sigList = readSignaturesAndTrust(pIn);
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            throw new IOException(
                "public key ring doesn't start with public key tag: " +
                "tag 0x" + Integer.toHexString(initialTag));
        }

        PublicKeyPacket pubPk = (PublicKeyPacket)pIn.readPacket();
        TrustPacket     trustPk = readOptionalTrustPacket(pIn);

        // direct signatures and revocations
        List keySigs = readSignaturesAndTrust(pIn);
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    }

    static PGPPublicKey readSubkey(BCPGInputStream in, KeyFingerPrintCalculator fingerPrintCalculator)
        throws IOException, PGPException
    {
        PublicKeyPacket pk = (PublicKeyPacket)in.readPacket();
        TrustPacket     kTrust = readOptionalTrustPacket(in);

        // PGP 8 actually leaves out the signature.
        List sigList = readSignaturesAndTrust(in);
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        if (secKeyData == null || secKeyData.length < 1)
        {
            return null;
        }

        PublicKeyPacket pubPk = secret.getPublicKeyPacket();

        try
        {
            byte[]             data = extractKeyData(decryptorFactory);
            BCPGInputStream    in = new BCPGInputStream(new ByteArrayInputStream(data));


            switch (pubPk.getAlgorithm())
            {
            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSASecretBCPGKey        rsaPriv = new RSASecretBCPGKey(in);
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public class BcPGPKeyConverter
{
    public AsymmetricKeyParameter getPublicKey(PGPPublicKey publicKey)
        throws PGPException
    {
        PublicKeyPacket publicPk = publicKey.getPublicKeyPacket();

        try
        {
            switch (publicPk.getAlgorithm())
            {
            case PublicKeyAlgorithmTags.RSA_ENCRYPT:
            case PublicKeyAlgorithmTags.RSA_GENERAL:
            case PublicKeyAlgorithmTags.RSA_SIGN:
                RSAPublicBCPGKey rsaK = (RSAPublicBCPGKey)publicPk.getKey();

                return new RSAKeyParameters(false, rsaK.getModulus(), rsaK.getPublicExponent());
            case PublicKeyAlgorithmTags.DSA:
                DSAPublicBCPGKey dsaK = (DSAPublicBCPGKey)publicPk.getKey();

                return new DSAPublicKeyParameters(dsaK.getY(), new DSAParameters(dsaK.getP(), dsaK.getQ(), dsaK.getG()));
            case PublicKeyAlgorithmTags.ELGAMAL_ENCRYPT:
            case PublicKeyAlgorithmTags.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey elK = (ElGamalPublicBCPGKey)publicPk.getKey();

                return new ElGamalPublicKeyParameters(elK.getY(), new ElGamalParameters(elK.getP(), elK.getG()));
            default:
                throw new PGPException("unknown public key algorithm encountered");
            }
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    }

    public AsymmetricKeyParameter getPrivateKey(PGPPrivateKey privKey)
        throws PGPException
    {
        PublicKeyPacket pubPk = privKey.getPublicKeyPacket();
        BCPGKey privPk = privKey.getPrivateKeyDataPacket();

        try
        {
            switch (pubPk.getAlgorithm())
            {
            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSAPublicBCPGKey rsaPub = (RSAPublicBCPGKey)pubPk.getKey();
                RSASecretBCPGKey rsaPriv = (RSASecretBCPGKey)privPk;

                return new RSAPrivateCrtKeyParameters(rsaPriv.getModulus(), rsaPub.getPublicExponent(), rsaPriv.getPrivateExponent(), rsaPriv.getPrimeP(), rsaPriv.getPrimeQ(), rsaPriv.getPrimeExponentP(), rsaPriv.getPrimeExponentQ(), rsaPriv.getCrtCoefficient());
            case PGPPublicKey.DSA:
                DSAPublicBCPGKey    dsaPub = (DSAPublicBCPGKey)pubPk.getKey();
                DSASecretBCPGKey dsaPriv = (DSASecretBCPGKey)privPk;

                return new DSAPrivateKeyParameters(dsaPriv.getX(), new DSAParameters(dsaPub.getP(), dsaPub.getQ(),  dsaPub.getG()));
            case PGPPublicKey.ELGAMAL_ENCRYPT:
            case PGPPublicKey.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey    elPub = (ElGamalPublicBCPGKey)pubPk.getKey();
                ElGamalSecretBCPGKey elPriv = (ElGamalSecretBCPGKey)privPk;

                return new ElGamalPrivateKeyParameters(elPriv.getX(), new ElGamalParameters(elPub.getP(), elPub.getG()));
            default:
                throw new PGPException("unknown public key algorithm encountered");
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    public PublicKey getPublicKey(PGPPublicKey publicKey)
        throws PGPException
    {
        KeyFactory fact;

        PublicKeyPacket publicPk = publicKey.getPublicKeyPacket();

        try
        {
            switch (publicPk.getAlgorithm())
            {
            case PublicKeyAlgorithmTags.RSA_ENCRYPT:
            case PublicKeyAlgorithmTags.RSA_GENERAL:
            case PublicKeyAlgorithmTags.RSA_SIGN:
                RSAPublicBCPGKey rsaK = (RSAPublicBCPGKey)publicPk.getKey();
                RSAPublicKeySpec rsaSpec = new RSAPublicKeySpec(rsaK.getModulus(), rsaK.getPublicExponent());

                fact = helper.createKeyFactory("RSA");

                return fact.generatePublic(rsaSpec);
            case PublicKeyAlgorithmTags.DSA:
                DSAPublicBCPGKey dsaK = (DSAPublicBCPGKey)publicPk.getKey();
                DSAPublicKeySpec dsaSpec = new DSAPublicKeySpec(dsaK.getY(), dsaK.getP(), dsaK.getQ(), dsaK.getG());

                fact = helper.createKeyFactory("DSA");

                return fact.generatePublic(dsaSpec);
            case PublicKeyAlgorithmTags.ELGAMAL_ENCRYPT:
            case PublicKeyAlgorithmTags.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey elK = (ElGamalPublicBCPGKey)publicPk.getKey();
                ElGamalPublicKeySpec elSpec = new ElGamalPublicKeySpec(elK.getY(), new ElGamalParameterSpec(elK.getP(), elK.getG()));

                fact = helper.createKeyFactory("ElGamal");

                return fact.generatePublic(elSpec);
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        else
        {
            throw new PGPException("unknown key class");
        }

        return new PGPPublicKey(new PublicKeyPacket(algorithm, time, bcpgKey), fingerPrintCalculator);
    }
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Related Classes of org.bouncycastle.bcpg.PublicKeyPacket

  • org.bouncycastle.openpgp.operator.bc.BcPGPKeyConverter
  • org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyConverter
  • org.bouncycastle.openpgp.PGPPublicKey
  • org.bouncycastle.openpgp.PGPPublicKeyRing
  • org.bouncycastle.openpgp.PGPSecretKey
  • java.util.Date
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