Package javax.crypto

Examples of javax.crypto.KeyGenerator

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            KeyPair keyPair = fact.generateKeyPair();

            PrivateKey  priKey = keyPair.getPrivate();
            PublicKey   pubKey = keyPair.getPublic();

            KeyGenerator keyGen = KeyGenerator.getInstance("DES", "BC");
            Key wrapKey = keyGen.generateKey();
            cipher.init(Cipher.WRAP_MODE, wrapKey);
            byte[] wrappedKey = cipher.wrap(priKey);

            cipher.init(Cipher.UNWRAP_MODE, wrapKey);
            Key key = cipher.unwrap(wrappedKey, "RSA", Cipher.PRIVATE_KEY);
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    }

    private void testCipherNameWithWrap(String name, String simpleName)
        throws Exception
    {
        KeyGenerator kg = KeyGenerator.getInstance("AES");
        kg.init(new SecureRandom());
        SecretKey key = kg.generateKey();

        byte[] salt = {
                        (byte)0xc7, (byte)0x73, (byte)0x21, (byte)0x8c,
                        (byte)0x7e, (byte)0xc8, (byte)0xee, (byte)0x99
                        };
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    private void runTest(
        String  name)
        throws Exception
    {
        String lCode = "ABCDEFGHIJKLMNOPQRSTUVWXY0123456789";
        KeyGenerator            kGen;

        if (name.indexOf('/') < 0)
        {
            kGen = KeyGenerator.getInstance(name, "BC");
        }
        else
        {
            kGen = KeyGenerator.getInstance(name.substring(0, name.indexOf('/')), "BC");
        }

        Cipher                  in = Cipher.getInstance(name, "BC");
        Cipher                  out = Cipher.getInstance(name, "BC");
        Key                     key = kGen.generateKey();
        ByteArrayInputStream    bIn = new ByteArrayInputStream(lCode.getBytes());
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();

        in.init(Cipher.ENCRYPT_MODE, key);
        if (in.getIV() != null)
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                fail("wrong mac value computed for " + name);
            }

            try
            {
                KeyGenerator kg = KeyGenerator.getInstance(name);
                kg.generateKey();
            }
            catch (NoSuchAlgorithmException e)
            {
                missingKeyGens.add(name);
            }
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    { 1, 1, 1, 1, 1, 1, 1, 1 }, "DES");

    private static SecretKey getKey() throws NoSuchAlgorithmException
    {

        KeyGenerator kg = KeyGenerator.getInstance("DES");
        kg.init(56); // 56 is the keysize. Fixed for DES
        // key = kg.generateKey();
        //
        // SecretKeyFactory kf =
        // SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        // SecretKey key = kf.generateSecret(keySpec);
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                encryptionType.getName() ) );
        }

        try
        {
            KeyGenerator keyGenerator = KeyGenerator.getInstance( algorithm );

            if ( encryptionType.equals( EncryptionType.AES128_CTS_HMAC_SHA1_96 ) )
            {
                keyGenerator.init( 128 );
            }

            if ( encryptionType.equals( EncryptionType.AES256_CTS_HMAC_SHA1_96 ) )
            {
                keyGenerator.init( 256 );
            }

            SecretKey key = keyGenerator.generateKey();

            byte[] keyBytes = key.getEncoded();

            return new EncryptionKey( encryptionType, keyBytes );
        }
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        }
        return secretKey;
    }
   
    private Key generateDataEncryptionKey() throws Exception {     
        KeyGenerator keyGenerator = null;
        if (xmlCipherAlgorithm.equalsIgnoreCase(XMLCipher.TRIPLEDES)) {
            keyGenerator = KeyGenerator.getInstance("DESede");
        } else {
            keyGenerator = KeyGenerator.getInstance("AES");
        }
        if (xmlCipherAlgorithm.equalsIgnoreCase(XMLCipher.AES_128)) {
            keyGenerator.init(128);
        } else if (xmlCipherAlgorithm.equalsIgnoreCase(XMLCipher.AES_192)) {
            keyGenerator.init(192);
        } else if (xmlCipherAlgorithm.equalsIgnoreCase(XMLCipher.AES_256)) {
            keyGenerator.init(256);
        }
        return keyGenerator.generateKey();
    }
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        if(secret == null)
        {
            try
            {
                KeyGenerator kg = KeyGenerator.getInstance(algorithm);
                bytes = kg.generateKey().getEncoded();
               
                if(log.isDebugEnabled())
                    log.debug("generated random password of length " + bytes.length);
            }
            catch (NoSuchAlgorithmException e)
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        if(secret == null)
        {
            try
            {
                KeyGenerator kg = KeyGenerator.getInstance(algorithm);
                bytes = kg.generateKey().getEncoded();
               
                if(log.isDebugEnabled())
                    log.debug("generated random mac password of length " + bytes.length);
            }
            catch (NoSuchAlgorithmException e)
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    protected SecretKey generateSecret(WonderlandClientID clientID) {
        SecretKey out;

        // generate the key
        try {
            KeyGenerator generator = KeyGenerator.getInstance("HmacSHA1");
            out = generator.generateKey();
        } catch (NoSuchAlgorithmException nsae) {
            throw new IllegalStateException(nsae);
        }

        // add a listener that will remove the key when this client logs out
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