Examples of org.apache.commons.ssl.asn1.ASN1InputStream

org.apache.geronimo.crypto.asn1.ASN1InputStream
a general purpose ASN.1 decoder - note: this class differs from the others in that it returns null after it has read the last object in the stream. If an ASN.1 NULL is encountered a DER/BER Null object is returned.

                        pkcs8.oid3 = str;
                    }
                } else {
                    pkcs8.derIntegers = null;
                    if (obj instanceof DEROctetString) {
                        DEROctetString oct = (DEROctetString) obj;
                        byte[] octets = oct.getOctets();
                        int len = Math.min(10, octets.length);
                        boolean probablyBinary = false;
                        for (int i = 0; i < len; i++) {
                            byte b = octets[i];
                            boolean isBinary = b > 128 || b < 0;

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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);
            }


            DERSequence inner = new DERSequence(innerVec);
            outterVec.add(derZero);
            outterVec.add(inner);

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                                }
                            }
                        }
                        str += " (length=" + octets.length + ")";
                    } else if (obj instanceof DERPrintableString) {
                        DERPrintableString dps = (DERPrintableString) obj;
                        str = dps.getString();
                    }
                }


                if (DEBUG) {
                    System.out.println(name + ": [" + str + "]");

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        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;
    }

View Full Code Here

                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();
            }
            if (chain != null && chain.length > 0) {

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                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);
            }


            DERSequence inner = new DERSequence(innerVec);
            outterVec.add(derZero);
            outterVec.add(inner);
            outterVec.add(octetsToAppend);
            DERSequence outter = new DERSequence(outterVec);
            return encode(outter);
        }
        catch (IOException ioe) {
            throw JavaImpl.newRuntimeException(ioe);
        }

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        if (seq instanceof DERSequence) {
            en = ((DERSequence) seq).getObjects();
        } else if (seq instanceof DERSet) {
            en = ((DERSet) seq).getObjects();
        } else if (seq instanceof DERTaggedObject) {
            DERTaggedObject derTag = (DERTaggedObject) seq;
            tag = Integer.toString(derTag.getTagNo());
            Vector v = new Vector();
            v.add(derTag.getObject());
            en = v.elements();
        } else {
            throw new IllegalArgumentException("DEREncodable must be one of: DERSequence, DERSet, DERTaggedObject");
        }
        while (en != null && en.hasMoreElements()) {

View Full Code Here

    /**
     * This method returns a X509Name object corresponding to the subject in a given certificate
     * @param cert Certificate from which subject needs to be retrieved
     */
    public static X509Name getSubjectX509Name(Certificate cert) throws CertificateEncodingException, IOException {
        ASN1InputStream ais = new ASN1InputStream(cert.getEncoded());
        X509CertificateStructure x509Struct = new X509CertificateStructure((ASN1Sequence)ais.readObject());
        ais.close();
        return x509Struct.getSubject();
    }

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    /**
     * This method returns a X509Name object corresponding to a given principal
     */
    public static X509Name getX509Name(X500Principal principal) throws CertificateEncodingException, IOException {
        ASN1InputStream ais = new ASN1InputStream(principal.getEncoded());
        X509Name name = new X509Name((ASN1Sequence)ais.readObject());
        ais.close();
        return name;
    }

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     * @return a Map with Subject, public-key and challenge 
     */
    public static Map processSPKAC(String spkac) throws IOException, NoSuchAlgorithmException, InvalidKeyException, SignatureException, Exception {
        Map map = new HashMap();
        byte[]data = Base64.decode(spkac);
        ASN1InputStream ais = new ASN1InputStream(new ByteArrayInputStream(data));
        DERSequence spkacSeq = (DERSequence)ais.readObject();


        // SPKAC = SEQ {PKAC, SIGN-ALG, SIGN}
        // Get PKAC and obtain PK and C
        DERSequence pkacSeq = (DERSequence)spkacSeq.getObjectAt(0);
        DERObject pk = (DERObject)pkacSeq.getObjectAt(0);

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