Examples with KeyParameter org.spongycastle.crypto.params.KeyParameter used on opensource projects

Example 1 with KeyParameter

use of org.spongycastle.crypto.params.KeyParameter in project bitsquare by bitsquare.

the class WalletService method getSendRequestForMultipleAddresses.

private Wallet.SendRequest getSendRequestForMultipleAddresses(Set<String> fromAddresses, String toAddress, Coin amount, @Nullable String changeAddress, @Nullable KeyParameter aesKey) throws AddressFormatException, AddressEntryException, InsufficientMoneyException {
    Transaction tx = new Transaction(params);
    Preconditions.checkArgument(Restrictions.isAboveDust(amount), "The amount is too low (dust limit).");
    tx.addOutput(amount, new Address(params, toAddress));
    Wallet.SendRequest sendRequest = Wallet.SendRequest.forTx(tx);
    sendRequest.aesKey = aesKey;
    sendRequest.shuffleOutputs = false;
    Set<AddressEntry> addressEntries = fromAddresses.stream().map(address -> {
        Optional<AddressEntry> addressEntryOptional = findAddressEntry(address, AddressEntry.Context.AVAILABLE);
        if (!addressEntryOptional.isPresent())
            addressEntryOptional = findAddressEntry(address, AddressEntry.Context.OFFER_FUNDING);
        if (!addressEntryOptional.isPresent())
            addressEntryOptional = findAddressEntry(address, AddressEntry.Context.TRADE_PAYOUT);
        if (!addressEntryOptional.isPresent())
            addressEntryOptional = findAddressEntry(address, AddressEntry.Context.ARBITRATOR);
        return addressEntryOptional;
    }).filter(Optional::isPresent).map(Optional::get).collect(Collectors.toSet());
    if (addressEntries.isEmpty())
        throw new AddressEntryException("No Addresses for withdraw  found in our wallet");
    sendRequest.coinSelector = new MultiAddressesCoinSelector(params, addressEntries);
    Optional<AddressEntry> addressEntryOptional = Optional.empty();
    AddressEntry changeAddressAddressEntry = null;
    if (changeAddress != null)
        addressEntryOptional = findAddressEntry(changeAddress, AddressEntry.Context.AVAILABLE);
    if (addressEntryOptional.isPresent()) {
        changeAddressAddressEntry = addressEntryOptional.get();
    } else {
        ArrayList<AddressEntry> list = new ArrayList<>(addressEntries);
        if (!list.isEmpty())
            changeAddressAddressEntry = list.get(0);
    }
    checkNotNull(changeAddressAddressEntry, "change address must not be null");
    sendRequest.changeAddress = changeAddressAddressEntry.getAddress();
    sendRequest.feePerKb = FeePolicy.getNonTradeFeePerKb();
    return sendRequest;
}

Example 2 with KeyParameter

use of org.spongycastle.crypto.params.KeyParameter in project conceal by facebook.

the class BouncyCastleHelper method bouncyCastleEncrypt.

public static Result bouncyCastleEncrypt(byte[] data, byte[] key, byte[] iv, byte[] aadData) throws UnsupportedEncodingException, InvalidCipherTextException {
    GCMBlockCipher gcm = new GCMBlockCipher(new AESEngine());
    byte[] gcmOut = new byte[CryptoTestUtils.NUM_DATA_BYTES + CryptoConfig.KEY_128.tagLength];
    KeyParameter keyParameter = new KeyParameter(key);
    // Add aad data.
    AEADParameters params = new AEADParameters(keyParameter, CryptoConfig.KEY_128.tagLength * 8, iv, aadData);
    // Init encryption.
    gcm.init(true, params);
    int written = gcm.processBytes(data, 0, data.length, gcmOut, 0);
    written += gcm.doFinal(gcmOut, written);
    byte[] bouncyCastleOut = Arrays.copyOfRange(gcmOut, 0, written);
    byte[] cipherText = Arrays.copyOfRange(bouncyCastleOut, 0, CryptoTestUtils.NUM_DATA_BYTES);
    byte[] tag = Arrays.copyOfRange(bouncyCastleOut, CryptoTestUtils.NUM_DATA_BYTES, bouncyCastleOut.length);
    return new Result(cipherText, tag);
}

Example 3 with KeyParameter

use of org.spongycastle.crypto.params.KeyParameter in project bitsquare by bitsquare.

the class ScryptUtil method deriveKeyWithScrypt.

public static void deriveKeyWithScrypt(KeyCrypterScrypt keyCrypterScrypt, String password, DeriveKeyResultHandler resultHandler) {
    Utilities.getThreadPoolExecutor("ScryptUtil:deriveKeyWithScrypt-%d", 1, 2, 5L).submit(() -> {
        try {
            log.debug("Doing key derivation");
            long start = System.currentTimeMillis();
            KeyParameter aesKey = keyCrypterScrypt.deriveKey(password);
            long duration = System.currentTimeMillis() - start;
            log.debug("Key derivation took {} msec", duration);
            UserThread.execute(() -> {
                try {
                    resultHandler.handleResult(aesKey);
                } catch (Throwable t) {
                    t.printStackTrace();
                    log.error("Executing task failed. " + t.getMessage());
                }
            });
        } catch (Throwable t) {
            t.printStackTrace();
            log.error("Executing task failed. " + t.getMessage());
        }
    });
}