Examples of DSAPublicKeySpec

java.security.spec.DSAPublicKeySpec
This class specifies a DSA public key with its associated parameters. @author Jan Luehe @version 1.19, 11/17/05 @see java.security.Key @see java.security.KeyFactory @see KeySpec @see DSAPrivateKeySpec @see X509EncodedKeySpec @since 1.2

Examples of java.security.spec.DSAPublicKeySpec


   /** @inheritDoc */
   public PublicKey getPublicKey() throws XMLSecurityException {


      try {
         DSAPublicKeySpec pkspec =
            new DSAPublicKeySpec(this
               .getBigIntegerFromChildElement(Constants._TAG_Y, Constants
               .SignatureSpecNS), this
                  .getBigIntegerFromChildElement(Constants._TAG_P, Constants
                  .SignatureSpecNS), this
                     .getBigIntegerFromChildElement(Constants._TAG_Q, Constants

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Examples of java.security.spec.DSAPublicKeySpec

     *
     * @throws InvalidKeyException
     */
    public SshDssPublicKey(byte[] key) throws InvalidKeyException {
        try {
            DSAPublicKeySpec dsaKey;


            // Extract the key information
            ByteArrayReader bar = new ByteArrayReader(key);
            String header = bar.readString();


            if (!header.equals(getAlgorithmName())) {
                throw new InvalidKeyException();
            }


            BigInteger p = bar.readBigInteger();
            BigInteger q = bar.readBigInteger();
            BigInteger g = bar.readBigInteger();
            BigInteger y = bar.readBigInteger();
            dsaKey = new DSAPublicKeySpec(y, p, q, g);


            KeyFactory kf = KeyFactory.getInstance("DSA");
            
            pubkey = (DSAPublicKey) kf.generatePublic(dsaKey);
        } catch (Exception e) {

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Examples of java.security.spec.DSAPublicKeySpec

     *
     * @return
     */
    public SshPublicKey getPublicKey() {
        try {
            DSAPublicKeySpec spec = new DSAPublicKeySpec(getY(),
                    prvkey.getParams().getP(), prvkey.getParams().getQ(),
                    prvkey.getParams().getG());
            KeyFactory kf = KeyFactory.getInstance("DSA");


            return new SshDssPublicKey((DSAPublicKey) kf.generatePublic(spec));

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Examples of java.security.spec.DSAPublicKeySpec

    private static PublicKey getPublicKey(String algo) 
            throws InvalidKeySpecException, NoSuchAlgorithmException {
        KeyFactory kf = KeyFactory.getInstance(algo);
        KeySpec kspec = null;
        if (algo.equalsIgnoreCase("DSA")) {
            kspec = new DSAPublicKeySpec(new BigInteger(DSA_Y), 
                        new BigInteger(DSA_P), 
                        new BigInteger(DSA_Q), 
                        new BigInteger(DSA_G));
        } else if (algo.equalsIgnoreCase("RSA")) {
            kspec = new RSAPublicKeySpec(new BigInteger(RSA_MOD),

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Examples of java.security.spec.DSAPublicKeySpec

            //if (curElem != null && curElem.getLocalName().equals("J")) {
                //j = new DOMCryptoBinary(curElem.getFirstChild());
                // curElem = DOMUtils.getNextSiblingElement(curElem);
            //}
            //@@@ do we care about j, pgenCounter or seed?
            DSAPublicKeySpec spec = new DSAPublicKeySpec(y, p, q, g);
            return (DSAPublicKey) generatePublicKey(dsakf, spec);
        }

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Examples of java.security.spec.DSAPublicKeySpec

        {
            BigInteger p = decodeBigInt();
            BigInteger q = decodeBigInt();
            BigInteger g = decodeBigInt();
            BigInteger y = decodeBigInt();
            DSAPublicKeySpec spec = new DSAPublicKeySpec( y, p, q, g );
            return KeyFactory.getInstance( "DSA" ).generatePublic( spec );
        }
        else
        {
            throw new IllegalArgumentException( "unknown type " + type );

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Examples of java.security.spec.DSAPublicKeySpec

            com.trilead.ssh2.signature.DSAPrivateKey x = (com.trilead.ssh2.signature.DSAPrivateKey)key;
            KeyFactory kf = KeyFactory.getInstance("DSA");
//            System.out.println("ssh-dsa " + new String(Base64.encode(DSASHA1Verify.encodeSSHDSAPublicKey(x.getPublicKey()))));


            return new KeyPair(
                    kf.generatePublic(new DSAPublicKeySpec(x.getY(), x.getP(), x.getQ(), x.getG())),
                    kf.generatePrivate(new DSAPrivateKeySpec(x.getX(), x.getP(), x.getQ(), x.getG())));
        }


        throw new UnsupportedOperationException("Unrecognizable key format: "+key);
    }

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Examples of java.security.spec.DSAPublicKeySpec

    }


    /** Creates a DSA public key. */
    public static PublicKey newDSAPublicKey(String y, String p, String q, String g)
            throws GeneralSecurityException {
        return SecurityUtils.getKeyFactory("DSA").generatePublic(new DSAPublicKeySpec(new BigInteger(y, 16),
                                                                                      new BigInteger(p, 16),
                                                                                      new BigInteger(q, 16),
                                                                                      new BigInteger(g, 16))
        );
    }

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Examples of java.security.spec.DSAPublicKeySpec

            if (prevDSAPubKey.getParams() == null)
            {
                continue;
            }
            DSAParams dsaParams = prevDSAPubKey.getParams();
            DSAPublicKeySpec dsaPubKeySpec = new DSAPublicKeySpec(
                dsaPubKey.getY(), dsaParams.getP(), dsaParams.getQ(), dsaParams.getG());
            try
            {
                KeyFactory keyFactory = KeyFactory.getInstance("DSA", BouncyCastleProvider.PROVIDER_NAME);
                return keyFactory.generatePublic(dsaPubKeySpec);

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Examples of java.security.spec.DSAPublicKeySpec

    {
        if (spec.isAssignableFrom(DSAPublicKeySpec.class) && key instanceof DSAPublicKey)
        {
            DSAPublicKey k = (DSAPublicKey)key;


            return new DSAPublicKeySpec(k.getY(), k.getParams().getP(), k.getParams().getQ(), k.getParams().getG());
        }
        else if (spec.isAssignableFrom(DSAPrivateKeySpec.class) && key instanceof java.security.interfaces.DSAPrivateKey)
        {
            java.security.interfaces.DSAPrivateKey k = (java.security.interfaces.DSAPrivateKey)key;

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