Examples of DSAPrivateKey

ch.ethz.ssh2.signature.DSAPrivateKey
DSAPrivateKey. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: DSAPrivateKey.java,v 1.1 2005/05/26 14:53:30 cplattne Exp $
com.trilead.ssh2.signature.DSAPrivateKey
DSAPrivateKey. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: DSAPrivateKey.java,v 1.1 2005/05/26 14:53:30 cplattne Exp $
freenet.crypt.DSAPrivateKey
java.security.interfaces.DSAPrivateKey
The standard interface to a DSA private key. DSA (Digital Signature Algorithm) is defined in NIST's FIPS-186. @see java.security.Key @see java.security.Signature @see DSAKey @see DSAPublicKey @version 1.20 05/11/17 @author Benjamin Renaud

Examples of java.security.interfaces.DSAPrivateKey


        DSAPublicKey k1 = (DSAPublicKey)serializeDeserialize(vKey);


        checkPublic(k1, vKey);


        DSAPrivateKey k2 = (DSAPrivateKey)serializeDeserialize(sKey);


        checkPrivateKey(k2, sKey);


        //
        // ECDSA Fp generation test

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Examples of java.security.interfaces.DSAPrivateKey

     *             public key
     */
    public static PublicKey derivePublicKey(PrivateKey key) throws KeyException {
        KeyFactory factory;
        if (key instanceof DSAPrivateKey) {
            DSAPrivateKey dsaKey = (DSAPrivateKey) key;
            DSAParams keyParams = dsaKey.getParams();
            BigInteger y = keyParams.getQ().modPow(dsaKey.getX(), keyParams.getP());
            DSAPublicKeySpec pubKeySpec = new DSAPublicKeySpec(y, keyParams.getP(), keyParams.getQ(), keyParams.getG());


            try {
                factory = KeyFactory.getInstance("DSA");
                return factory.generatePublic(pubKeySpec);

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Examples of java.security.interfaces.DSAPrivateKey

    catch (IllegalArgumentException x)
      {
        harness.check(true, "Recognised unknown public key format ID");
      }


    DSAPrivateKey secK = (DSAPrivateKey) kp.getPrivate();
    try
      {
        ((DSSPrivateKey) secK).getEncoded(0);
        harness.fail("Private key succeeded with unknown format ID");
      }

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Examples of java.security.interfaces.DSAPrivateKey

    pk = ((DSSPublicKey) pubK).getEncoded(IKeyPairCodec.RAW_FORMAT);
    PublicKey newPubK = codec.decodePublicKey(pk);
    harness.check(pubK.equals(newPubK),
                  "DSS public key Raw encoder/decoder test");


    DSAPrivateKey secK = (DSAPrivateKey) kp.getPrivate();
    pk = ((DSSPrivateKey) secK).getEncoded(IKeyPairCodec.RAW_FORMAT);
    PrivateKey newSecK = codec.decodePrivateKey(pk);
    harness.check(secK.equals(newSecK),
                  "DSS private key Raw encoder/decoder test");
  }

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Examples of java.security.interfaces.DSAPrivateKey

    kp = kpg.generate();


    byte[] pk;


    DSAPublicKey pubK = (DSAPublicKey) kp.getPublic();
    DSAPrivateKey secK = (DSAPrivateKey) kp.getPrivate();


    pk = ((DSSPrivateKey) secK).getEncoded(IKeyPairCodec.PKCS8_FORMAT);
    PrivateKey newSecK = new DSSKeyPairPKCS8Codec().decodePrivateKey(pk);
    harness.check(secK.equals(newSecK),
                  "DSS private key ASN.1 encoder/decoder test");


    pk = ((DSSPublicKey) pubK).getEncoded(IKeyPairCodec.X509_FORMAT);
    PublicKey newPubK = new DSSKeyPairX509Codec().decodePublicKey(pk);
    harness.check(pubK.equals(newPubK),

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Examples of java.security.interfaces.DSAPrivateKey

    harness.checkPoint("testPrivateKeyValueOf");


    kp = kpg.generate();
    byte[] pk;


    DSAPrivateKey p1 = (DSAPrivateKey) kp.getPrivate();


    pk = ((DSSPrivateKey) p1).getEncoded(IKeyPairCodec.RAW_FORMAT);
    PrivateKey p2 = DSSPrivateKey.valueOf(pk);
    harness.check(p1.equals(p2),
                  "DSS private key valueOf(<raw-value>) test");


    pk = ((DSSPrivateKey) p1).getEncoded(IKeyPairCodec.PKCS8_FORMAT);
    PrivateKey p3 = DSSPrivateKey.valueOf(pk);
    harness.check(p1.equals(p3),
                  "DSS private key valueOf(<pkcs8-value>) test");
  }

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Examples of java.security.interfaces.DSAPrivateKey

  public void test(TestHarness harness)
  {
    harness.checkPoint("TestOfDSSSignature");


    DSAPublicKey publicK = new DSSPublicKey(Registry.ASN1_ENCODING_ID, p, q, g, y);
    DSAPrivateKey privateK = new DSSPrivateKey(Registry.ASN1_ENCODING_ID, p, q, g, x);


    DSSSignature alice = new DSSSignature();
    DSSSignature bob = (DSSSignature) alice.clone();


    byte[] message = "1 if by land, 2 if by sea...".getBytes();

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Examples of java.security.interfaces.DSAPrivateKey

            final DHPrivateKey dh = (DHPrivateKey)privK;
            final BigInteger result = dh.getX();
            return result!=null && result.bitLength()>0;
        }
        if ( privK instanceof DSAPrivateKey) {
            final DSAPrivateKey dsa = (DSAPrivateKey)privK;
            final BigInteger result = dsa.getX();
            return result!=null && result.bitLength()>0;
        }
        return false;
    }

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Examples of java.security.interfaces.DSAPrivateKey

            if (keySpec == null) {
                throw new NullPointerException(Messages
                        .getString("security.19E")); //$NON-NLS-1$
            }
            if (key instanceof DSAPrivateKey) {
                DSAPrivateKey privateKey = (DSAPrivateKey) key;


                if (keySpec.equals(DSAPrivateKeySpec.class)) {


                    x = privateKey.getX();


                    DSAParams params = privateKey.getParams();


                    p = params.getP();
                    q = params.getQ();
                    g = params.getG();

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Examples of java.security.interfaces.DSAPrivateKey

    protected Key engineTranslateKey(Key key) throws InvalidKeyException {


        if (key != null) {
            if (key instanceof DSAPrivateKey) {


                DSAPrivateKey privateKey = (DSAPrivateKey) key;
                DSAParams params = privateKey.getParams();


                try {
                    return engineGeneratePrivate(new DSAPrivateKeySpec(
                            privateKey.getX(), params.getP(), params.getQ(),
                            params.getG()));
                } catch (InvalidKeySpecException e) {
                    // Actually this exception shouldn't be thrown
                    throw new InvalidKeyException(Messages.getString(
                            "security.1A0", e)); //$NON-NLS-1$

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