Package org.bouncycastle.bcpg

Examples of org.bouncycastle.bcpg.PublicKeyPacket

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    }

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

        try
        {
            KeyFactory         fact;

            switch (pubPk.getAlgorithm())
            {
            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSAPublicBCPGKey        rsaPub = (RSAPublicBCPGKey)pubPk.getKey();
                RSASecretBCPGKey rsaPriv = (RSASecretBCPGKey)privPk;
                RSAPrivateCrtKeySpec rsaPrivSpec = new RSAPrivateCrtKeySpec(
                                                    rsaPriv.getModulus(),
                                                    rsaPub.getPublicExponent(),
                                                    rsaPriv.getPrivateExponent(),
                                                    rsaPriv.getPrimeP(),
                                                    rsaPriv.getPrimeQ(),
                                                    rsaPriv.getPrimeExponentP(),
                                                    rsaPriv.getPrimeExponentQ(),
                                                    rsaPriv.getCrtCoefficient());

                fact = helper.createKeyFactory("RSA");

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

                fact = helper.createKeyFactory("DSA");

                return fact.generatePrivate(dsaPrivSpec);
            case PGPPublicKey.ELGAMAL_ENCRYPT:
            case PGPPublicKey.ELGAMAL_GENERAL:
                ElGamalPublicBCPGKey    elPub = (ElGamalPublicBCPGKey)pubPk.getKey();
                ElGamalSecretBCPGKey elPriv = (ElGamalSecretBCPGKey)privPk;
                ElGamalPrivateKeySpec elSpec = new ElGamalPrivateKeySpec(elPriv.getX(), new ElGamalParameterSpec(elPub.getP(), elPub.getG()));

                fact = helper.createKeyFactory("ElGamal");
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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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        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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        boolean         useSHA1,
        SecureRandom    rand,
        String          provider)
        throws PGPException, NoSuchProviderException
    {
        PublicKeyPacket pubPk;
        BCPGObject      secKey;
       
        pubPk = keyPair.getPublicKey().publicPk;
       
        switch (keyPair.getPublicKey().getAlgorithm())
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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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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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