Examples of javax.crypto.KeyGenerator.generateKey()

javax.crypto.KeyGenerator.generateKey()
Generates a secret key. @return the generated secret key.

            keyGen = keyGen = KeyGenerator.getInstance("DESede");
        } catch (NoSuchAlgorithmException e2) {
            // TODO Auto-generated catch block
            e2.printStackTrace();
        }
        symmetricKey = keyGen.generateKey();
        XMLCipher xmlCipher = null;
        try {
            xmlCipher = XMLCipher.getInstance(symEncAlgo);
        } catch (XMLEncryptionException e3) {
            throw new WSSecurityException(WSSecurityException.UNSUPPORTED_ALGORITHM, null, null, e3);

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         * encrypted using the public key of the receiver
         */


        if (symmetricKey == null) {
            KeyGenerator keyGen = getKeyGenerator();
            this.symmetricKey = keyGen.generateKey();
        }
        byte[] encKey = this.symmetricKey.getEncoded();


        /*
         * Get the certificate that contains the public key for the public key

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                alg = JCEMapper.getJCEKeyAlgorithmFromURI(algorithmURI);
                size = WSSecurityUtil.getKeyLength(algorithmURI);
            }
            KeyGenerator kgen = KeyGenerator.getInstance(alg);
            kgen.init(size * 8);
            SecretKey k = kgen.generateKey();
            return k.getEncoded();
        } catch (Exception ex) {
            throw new WSSecurityException(WSSecurityException.FAILED_CHECK, null, null, ex);
        }
    }

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         */
        // This variable is made a classs attribute :: SecretKey symmetricKey = null;
        this.encryptionKey = this.symmetricKey;
        if (encryptionKey == null) {
            KeyGenerator keyGen = getKeyGenerator();
            this.encryptionKey = keyGen.generateKey();
        }
        Vector encDataRefs = doEncryption(doc, this.encryptionKey);


        if (tlog.isDebugEnabled()) {
            t1 = System.currentTimeMillis();

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        if(this.ephemeralKey == null) {
            if (symmetricKey == null) {
                KeyGenerator keyGen = getKeyGenerator();
                this.symmetricKey = keyGen.generateKey();
            } 
            this.ephemeralKey = this.symmetricKey.getEncoded();
        }
        /*
         * Get the certificate that contains the public key for the public key

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    private void setupKeyAndMac() {


        try {
            KeyGenerator kg = KeyGenerator.getInstance(KEY_ALGORITHM);
            kg.init(KEY_LENGTH);   // 256 if you're using the Unlimited Policy Files
            sk = kg.generateKey(); 


            encryptMac = Mac.getInstance(MAC_CODE);
            decryptMac = Mac.getInstance(MAC_CODE);
            encryptMac.init(sk);
            decryptMac.init(sk);

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        try
        {
            // Get an AES key
            KeyGenerator keygen = KeyGenerator.getInstance("AES");
            keygen.init(128);
            SecretKey aesKey = keygen.generateKey();
            
            // Get an IV
            ivBytes = new byte[16];
            prng.read(ivBytes);
            IvParameterSpec iv = new IvParameterSpec(ivBytes);

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                // should never happen
                throw new RuntimeException(e);
            }


            key.init(192, new SecureRandom());
            SecretKey sk = key.generateKey();
            System.arraycopy(sk.getEncoded(), 0, seed, 0, 20); // create the 20 bytes seed




            Iterator<PublicKeyRecipient> it = policy.getRecipientsIterator();
            int i = 0;

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        ASN1InputStream input = new ASN1InputStream(parameters.getEncoded("ASN.1"));
        ASN1Primitive object = input.readObject();
        input.close();


        keygen.init(128);
        SecretKey secretkey = keygen.generateKey();


        cipher.init(1, secretkey, parameters);
        byte[] bytes = cipher.doFinal(in);


        KeyTransRecipientInfo recipientInfo = computeRecipientInfo(cert, secretkey.getEncoded());

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            return;
        }


        KeyGenerator kGen = KeyGenerator.getInstance(hmacName, "BC");


        mac.init(kGen.generateKey());


        mac.update(message);


        out = mac.doFinal();
    }

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