Package java.security.spec

Examples of java.security.spec.DSAPublicKeySpec

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            BigInteger q = ((DERInteger) seq.getObjectAt(2)).getValue();
            BigInteger g = ((DERInteger) seq.getObjectAt(3)).getValue();
            BigInteger y = ((DERInteger) seq.getObjectAt(4)).getValue();
            BigInteger x = ((DERInteger) seq.getObjectAt(5)).getValue();
            PrivateKey priv = fact.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
            PublicKey pub = fact.generatePublic(new DSAPublicKeySpec(y, p, q, g));
            return new KeyPair(pub, priv);
        } else {
            return null;
        }
    }
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        if (seq.size() == 4) {
            BigInteger y = ((DERInteger) seq.getObjectAt(0)).getValue();
            BigInteger p = ((DERInteger) seq.getObjectAt(1)).getValue();
            BigInteger q = ((DERInteger) seq.getObjectAt(2)).getValue();
            BigInteger g = ((DERInteger) seq.getObjectAt(3)).getValue();
            return fact.generatePublic(new DSAPublicKeySpec(y, p, q, g));
        } else {
            return null;
        }
    }
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                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:
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   /** @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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        if (params == null)
            throw new CertPathValidatorException("Key parameters missing");
        try {
            BigInteger y = ((DSAPublicKey)keyValueKey).getY();
            KeyFactory kf = KeyFactory.getInstance("DSA");
            DSAPublicKeySpec ks = new DSAPublicKeySpec(y,
                                                       params.getP(),
                                                       params.getQ(),
                                                       params.getG());
            usableKey = kf.generatePublic(ks);
        } catch (Exception e) {
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     */
    protected PublicKey engineGeneratePublic(KeySpec keySpec)
    throws InvalidKeySpecException {
        try {
            if (keySpec instanceof DSAPublicKeySpec) {
                DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec)keySpec;
                if (SERIAL_INTEROP) {
                    return new DSAPublicKey(dsaPubKeySpec.getY(),
                                        dsaPubKeySpec.getP(),
                                        dsaPubKeySpec.getQ(),
                                        dsaPubKeySpec.getG());
                } else {
                    return new DSAPublicKeyImpl(dsaPubKeySpec.getY(),
                                        dsaPubKeySpec.getP(),
                                        dsaPubKeySpec.getQ(),
                                        dsaPubKeySpec.getG());
                }
            } else if (keySpec instanceof X509EncodedKeySpec) {
                if (SERIAL_INTEROP) {
                    return new DSAPublicKey
                        (((X509EncodedKeySpec)keySpec).getEncoded());
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                if (dsaPubKeySpec.isAssignableFrom(keySpec)) {
                    java.security.interfaces.DSAPublicKey dsaPubKey
                        = (java.security.interfaces.DSAPublicKey)key;
                    params = dsaPubKey.getParams();
                    return (T) new DSAPublicKeySpec(dsaPubKey.getY(),
                                                    params.getP(),
                                                    params.getQ(),
                                                    params.getG());

                } else if (x509KeySpec.isAssignableFrom(keySpec)) {
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                curElem = DOMUtils.getNextSiblingElement(curElem);
                pgen = new DOMCryptoBinary(curElem.getFirstChild());
            }
            */
            //@@@ do we care about j, pgenCounter or seed?
            DSAPublicKeySpec spec = new DSAPublicKeySpec(y.getBigNum(),
                                                         p.getBigNum(),
                                                         q.getBigNum(),
                                                         g.getBigNum());
            return generatePublicKey(dsakf, spec);
        }
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                    p = params.getP();
                    q = params.getQ();
                    g = params.getG();

                    return (T) (new DSAPublicKeySpec(y, p, q, g));
                }

                if (keySpec.equals(X509EncodedKeySpec.class)) {
                    return (T) (new X509EncodedKeySpec(key.getEncoded()));
                }
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                DSAPublicKey publicKey = (DSAPublicKey) key;
                DSAParams params = publicKey.getParams();

                try {
                    return engineGeneratePublic(new DSAPublicKeySpec(publicKey
                            .getY(), params.getP(), params.getQ(), params
                            .getG()));
                } catch (InvalidKeySpecException e) {
                    // Actually this exception shouldn't be thrown
                    throw new InvalidKeyException(Messages.getString(
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Related Classes of java.security.spec.DSAPublicKeySpec

  • com.adito.security.pki.dsa.SshDssPrivateKey
  • com.adito.security.pki.dsa.SshDssPublicKey
  • com.davfx.ninio.ssh.Sha1DssSignatureVerifier
  • com.davfx.ninio.ssh.util.PublicKeyLoader
  • com.sshtools.j2ssh.openssh.DSAKeyInfo
  • com.sshtools.j2ssh.transport.publickey.dsa.SshDssPrivateKey
  • com.sshtools.j2ssh.transport.publickey.dsa.SshDssPublicKey
  • com.sun.org.apache.xml.internal.security.keys.content.keyvalues.DSAKeyValue
  • com.sun.xml.ws.security.opt.crypto.dsig.keyinfo.KeyValue
  • com.sun.xml.wss.impl.XMLUtil
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