Package org.apache.commons.ssl.asn1

Examples of org.apache.commons.ssl.asn1.DEROutputStream

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    public byte[] getTBSCertificate()
        throws CertificateException
    {
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        DEROutputStream         dOut = new DEROutputStream(bOut);

        try
        {
            dOut.writeObject(c.getTBSCertificate());

            return bOut.toByteArray();
        }
        catch (IOException e)
        {
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        if (c.getSignatureAlgorithm().getParameters() != null)
        {
            try
            {
                DEROutputStream         dOut = new DEROutputStream(bOut);

                dOut.writeObject(c.getSignatureAlgorithm().getParameters());
            }
            catch (Exception e)
            {
                throw new RuntimeException("exception getting sig parameters " + e);
            }
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            X509Extension   ext = exts.getExtension(new DERObjectIdentifier(oid));

            if (ext != null)
            {
                ByteArrayOutputStream    bOut = new ByteArrayOutputStream();
                DEROutputStream            dOut = new DEROutputStream(bOut);

                try
                {
                    dOut.writeObject(ext.getValue());

                    return bOut.toByteArray();
                }
                catch (Exception e)
                {
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    public byte[] getEncoded()
        throws CertificateException
    {
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        DEROutputStream         dOut = new DEROutputStream(bOut);

        try
        {
            dOut.writeObject(c);

            return bOut.toByteArray();
        }
        catch (IOException e)
        {
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    }

    public byte[] toByteArray() {
        try {
            ByteArrayOutputStream collector = new ByteArrayOutputStream();
            DEROutputStream der = new DEROutputStream(collector);
            ASN1EncodableVector fields = new ASN1EncodableVector();
            int result = getResult();
            if (result != UNSPECIFIED_RESULT) {
                fields.add(new DERTaggedObject(true, 0,
                        new DEREnumerated(result)));
            }
            String mechanism = getMechanism();
            if (mechanism != null) {
                fields.add(new DERTaggedObject(true, 1,
                        new DERObjectIdentifier(mechanism)));
            }
            byte[] mechanismToken = getMechanismToken();
            if (mechanismToken != null) {
                fields.add(new DERTaggedObject(true, 2,
                        new DEROctetString(mechanismToken)));
            }
            byte[] mechanismListMIC = getMechanismListMIC();
            if (mechanismListMIC != null) {
                fields.add(new DERTaggedObject(true, 3,
                        new DEROctetString(mechanismListMIC)));
            }
            der.writeObject(new DERTaggedObject(true, 1,
                    new DERSequence(fields)));
            return collector.toByteArray();
        } catch (IOException ex) {
            throw new IllegalStateException(ex.getMessage());
        }
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    }

    public byte[] toByteArray() {
        try {
            ByteArrayOutputStream collector = new ByteArrayOutputStream();
            DEROutputStream der = new DEROutputStream(collector);
            der.writeObject(new DERObjectIdentifier(
                    SpnegoConstants.SPNEGO_MECHANISM));
            ASN1EncodableVector fields = new ASN1EncodableVector();
            String[] mechanisms = getMechanisms();
            if (mechanisms != null) {
                ASN1EncodableVector vector = new ASN1EncodableVector();
                for (int i = 0; i < mechanisms.length; i++) {
                    vector.add(new DERObjectIdentifier(mechanisms[i]));
                }
                fields.add(new DERTaggedObject(true, 0,
                        new DERSequence(vector)));
            }
            int contextFlags = getContextFlags();
            if (contextFlags != 0) {
                fields.add(new DERTaggedObject(true, 1,
                        new DERBitString(contextFlags)));
            }
            byte[] mechanismToken = getMechanismToken();
            if (mechanismToken != null) {
                fields.add(new DERTaggedObject(true, 2,
                        new DEROctetString(mechanismToken)));
            }
            byte[] mechanismListMIC = getMechanismListMIC();
            if (mechanismListMIC != null) {
                fields.add(new DERTaggedObject(true, 3,
                        new DEROctetString(mechanismListMIC)));
            }
            der.writeObject(new DERTaggedObject(true, 0,
                        new DERSequence(fields)));
            DERObject token = new DERUnknownTag(DERTags.CONSTRUCTED |
                    DERTags.APPLICATION, collector.toByteArray());
            der = new DEROutputStream(collector = new ByteArrayOutputStream());
            der.writeObject(token);
            return collector.toByteArray();
        } catch (IOException ex) {
            throw new IllegalStateException(ex.getMessage());
        }
    }
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            PrivateKey key = (PrivateKey) ks.getKey(alias, password);
            Certificate[] chain = ks.getCertificateChain(alias);
            byte[] pkcs8DerBytes = null;
            if (key instanceof RSAPrivateCrtKey) {
                RSAPrivateCrtKey rsa = (RSAPrivateCrtKey) key;
                ASN1EncodableVector vec = new ASN1EncodableVector();
                vec.add(new DERInteger(BigInteger.ZERO));
                vec.add(new DERInteger(rsa.getModulus()));
                vec.add(new DERInteger(rsa.getPublicExponent()));
                vec.add(new DERInteger(rsa.getPrivateExponent()));
                vec.add(new DERInteger(rsa.getPrimeP()));
                vec.add(new DERInteger(rsa.getPrimeQ()));
                vec.add(new DERInteger(rsa.getPrimeExponentP()));
                vec.add(new DERInteger(rsa.getPrimeExponentQ()));
                vec.add(new DERInteger(rsa.getCrtCoefficient()));
                DERSequence seq = new DERSequence(vec);
                byte[] derBytes = PKCS8Key.encode(seq);
                PKCS8Key pkcs8 = new PKCS8Key(derBytes, null);
                pkcs8DerBytes = pkcs8.getDecryptedBytes();
            } else if (key instanceof DSAPrivateKey) {
                DSAPrivateKey dsa = (DSAPrivateKey) key;
                DSAParams params = dsa.getParams();
                BigInteger g = params.getG();
                BigInteger p = params.getP();
                BigInteger q = params.getQ();
                BigInteger x = dsa.getX();
                BigInteger y = q.modPow(x, p);

                ASN1EncodableVector vec = new ASN1EncodableVector();
                vec.add(new DERInteger(BigInteger.ZERO));
                vec.add(new DERInteger(p));
                vec.add(new DERInteger(q));
                vec.add(new DERInteger(g));
                vec.add(new DERInteger(y));
                vec.add(new DERInteger(x));
                DERSequence seq = new DERSequence(vec);
                byte[] derBytes = PKCS8Key.encode(seq);
                PKCS8Key pkcs8 = new PKCS8Key(derBytes, null);
                pkcs8DerBytes = pkcs8.getDecryptedBytes();
            }
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    }

    public static byte[] formatAsPKCS8(byte[] privateKey, String oid,
                                       ASN1Structure pkcs8) {
        DERInteger derZero = new DERInteger(BigInteger.ZERO);
        ASN1EncodableVector outterVec = new ASN1EncodableVector();
        ASN1EncodableVector innerVec = new ASN1EncodableVector();
        DEROctetString octetsToAppend;
        try {
            DERObjectIdentifier derOID = new DERObjectIdentifier(oid);
            innerVec.add(derOID);
            if (DSA_OID.equals(oid)) {
                if (pkcs8 == null) {
                    try {
                        pkcs8 = ASN1Util.analyze(privateKey);
                    }
                    catch (Exception e) {
                        throw new RuntimeException("asn1 parse failure " + e);
                    }
                }
                if (pkcs8.derIntegers == null || pkcs8.derIntegers.size() < 6) {
                    throw new RuntimeException("invalid DSA key - can't find P, Q, G, X");
                }

                DERInteger[] ints = new DERInteger[pkcs8.derIntegers.size()];
                pkcs8.derIntegers.toArray(ints);
                DERInteger p = ints[1];
                DERInteger q = ints[2];
                DERInteger g = ints[3];
                DERInteger x = ints[5];

                byte[] encodedX = encode(x);
                octetsToAppend = new DEROctetString(encodedX);
                ASN1EncodableVector pqgVec = new ASN1EncodableVector();
                pqgVec.add(p);
                pqgVec.add(q);
                pqgVec.add(g);
                DERSequence pqg = new DERSequence(pqgVec);
                innerVec.add(pqg);
            } else {
                innerVec.add(DERNull.INSTANCE);
                octetsToAppend = new DEROctetString(privateKey);
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    public final static BigInteger BIGGEST =
        new BigInteger(Integer.toString(Integer.MAX_VALUE));

    public static ASN1Structure analyze(byte[] asn1)
        throws IOException {
        ASN1InputStream asn = new ASN1InputStream(asn1);
        DERSequence seq = (DERSequence) asn.readObject();
        ASN1Structure pkcs8 = new ASN1Structure();
        ASN1Util.analyze(seq, pkcs8, 0);
        return pkcs8;
    }
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        return true;
    }

    public static byte[] encode(DEREncodable der) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
        ASN1OutputStream out = new ASN1OutputStream(baos);
        out.writeObject(der);
        out.close();
        return baos.toByteArray();
    }
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