Package java.security.spec

Examples of java.security.spec.DSAPrivateKeySpec

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     *
     * @throws InvalidSshKeyException
     */
    public SshDssPrivateKey(byte[] key) throws InvalidSshKeyException {
        try {
            DSAPrivateKeySpec dsaKey;

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

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

            BigInteger p = bar.readBigInteger();
            BigInteger q = bar.readBigInteger();
            BigInteger g = bar.readBigInteger();
            BigInteger x = bar.readBigInteger();
            dsaKey = new DSAPrivateKeySpec(x, p, q, g);

            KeyFactory kf = KeyFactory.getInstance("DSA");
            prvkey = (DSAPrivateKey) kf.generatePrivate(dsaKey);
        } catch (Exception e) {
            throw new InvalidSshKeyException();
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            DERInteger              q = (DERInteger)seq.getObjectAt(2);
            DERInteger              g = (DERInteger)seq.getObjectAt(3);
            DERInteger              y = (DERInteger)seq.getObjectAt(4);
            DERInteger              x = (DERInteger)seq.getObjectAt(5);

            privSpec = new DSAPrivateKeySpec(
                        x.getValue(), p.getValue(),
                            q.getValue(), g.getValue());
            pubSpec = new DSAPublicKeySpec(
                        y.getValue(), p.getValue(),
                            q.getValue(), g.getValue());
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                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:
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                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                BigInteger x = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                pub = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
                prv = keyFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
            } else {
                throw new IllegalStateException("Unsupported algorithm: " + keyAlg);
            }
            return new KeyPair(pub, prv);
        } catch (InvalidKeySpecException e) {
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     * The test checks out that the method returns DSAPrivateKey
     * if argument is "DSAPrivateKeySpec"
     */
    public final void testGeneratePrivateKeySpec03() throws Exception {

        KeySpec keySpec = (KeySpec) new DSAPrivateKeySpec(privateX,
                                                          privateP, privateQ, privateG);

        checkPrivateKeys( (DSAPrivateKey) kf.generatePrivate(keySpec) );
    }
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    /**
     * Test for constructor
     */
    public final void testDSAPrivateKeySpec() {
        KeySpec ks = new DSAPrivateKeySpec(
                new BigInteger("1"),
                new BigInteger("2"),
                new BigInteger("3"),
                new BigInteger("4"));
       
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    /**
     * getG() test
     */
    public final void testGetG() {
        DSAPrivateKeySpec dpks = new DSAPrivateKeySpec(
                new BigInteger("1"),
                new BigInteger("2"),
                new BigInteger("3"),
                new BigInteger("4"));
       
        assertEquals(4, dpks.getG().intValue());
    }
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    /**
     * getP() test
     */
    public final void testGetP() {
        DSAPrivateKeySpec dpks = new DSAPrivateKeySpec(
                new BigInteger("1"),
                new BigInteger("2"),
                new BigInteger("3"),
                new BigInteger("4"));
       
        assertEquals(2, dpks.getP().intValue());
    }
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    /**
     * getQ() test
     */
    public final void testGetQ() {
        DSAPrivateKeySpec dpks = new DSAPrivateKeySpec(
                new BigInteger("1"),
                new BigInteger("2"),
                new BigInteger("3"),
                new BigInteger("4"));
       
        assertEquals(3, dpks.getQ().intValue());
    }
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    /**
     * getX() test
     */
    public final void testGetX() {
        DSAPrivateKeySpec dpks = new DSAPrivateKeySpec(
                new BigInteger("1"),
                new BigInteger("2"),
                new BigInteger("3"),
                new BigInteger("4"));
       
        assertEquals(1, dpks.getX().intValue());
    }
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Related Classes of java.security.spec.DSAPrivateKeySpec

  • com.adito.security.pki.dsa.SshDssPrivateKey
  • com.sshtools.j2ssh.openssh.DSAKeyInfo
  • com.sshtools.j2ssh.transport.publickey.dsa.SshDssPrivateKey
  • GenerationTests
  • hudson.cli.CLI
  • io.apigee.trireme.crypto.algorithms.DsaKeyPairProvider
  • net.schmizz.sshj.util.KeyUtil
  • org.apache.harmony.security.provider.crypto.DSAKeyFactoryImpl
  • org.apache.harmony.security.tests.java.security.spec.DSAPrivateKeySpecTest
  • org.apache.harmony.security.tests.provider.crypto.DSAKeyFactoryImplTest
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