Package javax.crypto.interfaces

Examples of javax.crypto.interfaces.DHPublicKey

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        if (!(key instanceof DHPublicKey))
        {
            throw new InvalidKeyException("DHKeyAgreement doPhase requires DHPublicKey");
        }
        DHPublicKey pubKey = (DHPublicKey)key;

        if (!pubKey.getParams().getG().equals(g) || !pubKey.getParams().getP().equals(p))
        {
            throw new InvalidKeyException("DHPublicKey not for this KeyAgreement!");
        }

        if (lastPhase)
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
            return null;
        }
        else
        {
            result = ((DHPublicKey)key).getY().modPow(x, p);
        }

        return new BCDHPublicKey(result, pubKey.getParams());
    }
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        PublicKey    key)
        throws InvalidKeyException
    {
        if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new DHPublicKeyParameters(k.getY(),
                new DHParameters(k.getParams().getP(), k.getParams().getG(), null, k.getParams().getL()));
        }

        throw new InvalidKeyException("can't identify DH public key.");
    }
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            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParameters().getP(), k.getParameters().getG()));
        }
        else if (key instanceof DHPublicKey)
        {
            DHPublicKey    k = (DHPublicKey)key;

            return new ElGamalPublicKeyParameters(k.getY(),
                new ElGamalParameters(k.getParams().getP(), k.getParams().getG()));
        }

        throw new InvalidKeyException("can't identify public key for El Gamal.");
    }
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            try {
                kp = kpg.genKeyPair();
                if (cipher_suite.keyExchange == CipherSuite.KeyExchange_RSA_EXPORT) {
                    rsakey = (RSAPublicKey) kp.getPublic();
                } else {
                    DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                    KeyFactory kf = null;
                    try {
                        kf = KeyFactory.getInstance("DH");
                    } catch (NoSuchAlgorithmException e) {
                            kf = KeyFactory.getInstance("DiffieHellman");
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            try {
                kp = kpg.genKeyPair();
                if (cipher_suite.keyExchange == CipherSuite.KeyExchange_RSA_EXPORT) {
                    rsakey = (RSAPublicKey) kp.getPublic();
                } else {
                    DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                    KeyFactory kf = null;
                    try {
                        kf = KeyFactory.getInstance("DH");
                    } catch (NoSuchAlgorithmException e) {
                            kf = KeyFactory.getInstance("DiffieHellman");
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            try {
                kp = kpg.genKeyPair();
                if (cipher_suite.keyExchange == CipherSuite.KeyExchange_RSA_EXPORT) {
                    rsakey = (RSAPublicKey) kp.getPublic();
                } else {
                    DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                    KeyFactory kf = null;
                    try {
                        kf = KeyFactory.getInstance("DH");
                    } catch (NoSuchAlgorithmException e) {
                            kf = KeyFactory.getInstance("DiffieHellman");
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   *
   * @param keyPair
   * @return public key
   */
  protected static byte[] getPublicKey(KeyPair keyPair) {
     DHPublicKey incomingPublicKey = (DHPublicKey) keyPair.getPublic();
       BigInteger  dhY = incomingPublicKey.getY();
       log.debug("Public key: {}", dhY);
       byte[] result = dhY.toByteArray();
       log.debug("Public key as bytes - length [{}]: {}", result.length, Hex.encodeHexString(result));
       byte[] temp = new byte[KEY_LENGTH];
       if (result.length < KEY_LENGTH) {
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   * Return the generated public value for this key agreement operation as a <code>BigInteger</code>.
   *
   * @return The diffie-hellman public value as a <code>BigInteger</code>.
   */
  public BigInteger getPublicValue() {
    DHPublicKey pubKey = (DHPublicKey) keyPair.getPublic();
    return pubKey.getY();
  }
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            try {
                kp = kpg.genKeyPair();
                if (cipher_suite.keyExchange == CipherSuite.KeyExchange_RSA_EXPORT) {
                    rsakey = (RSAPublicKey) kp.getPublic();
                } else {
                    DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                    KeyFactory kf = null;
                    try {
                        kf = KeyFactory.getInstance("DH");
                    } catch (NoSuchAlgorithmException e) {
                            kf = KeyFactory.getInstance("DiffieHellman");
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            try {
                kp = kpg.genKeyPair();
                if (cipher_suite.keyExchange == CipherSuite.KeyExchange_RSA_EXPORT) {
                    rsakey = (RSAPublicKey) kp.getPublic();
                } else {
                    DHPublicKey dhkey = (DHPublicKey) kp.getPublic();
                    KeyFactory kf = null;
                    try {
                        kf = KeyFactory.getInstance("DH");
                    } catch (NoSuchAlgorithmException e) {
                            kf = KeyFactory.getInstance("DiffieHellman");
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