Example usage for org.bouncycastle.util Arrays copyOf

Introduction

In this page you can find the example usage for org.bouncycastle.util Arrays copyOf.

Prototype

public static BigInteger[] copyOf(BigInteger[] original, int newLength) 

Source Link

Usage

From source file:org.cryptomator.filesystem.crypto.BlockAlignedReadableFileTest.java

License:Open Source License

private void testRead(File file, int blockSize) {
    try (ReadableFile r = new BlockAlignedReadableFile(file.openReadable(), blockSize)) {
        ByteBuffer buf = ByteBuffer.allocate(3);

        // 3.../*from  www. ja v a 2s. c o m*/
        r.position(3);
        r.read(buf);
        buf.flip();
        Assert.assertArrayEquals(new byte[] { 0x03, 0x04, 0x05 }, Arrays.copyOf(buf.array(), buf.remaining()));

        // go on...
        buf.clear();
        r.read(buf);
        buf.flip();
        Assert.assertArrayEquals(new byte[] { 0x06, 0x07, 0x08 }, Arrays.copyOf(buf.array(), buf.remaining()));

        // go on till EOF...
        buf.clear();
        r.read(buf);
        buf.flip();
        Assert.assertArrayEquals(new byte[] { 0x09 }, Arrays.copyOf(buf.array(), buf.remaining()));

        // back to 4...
        r.position(4);
        buf.clear();
        r.read(buf);
        buf.flip();
        Assert.assertArrayEquals(new byte[] { 0x04, 0x05, 0x06 }, Arrays.copyOf(buf.array(), buf.remaining()));
    }
}

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From source file:org.ethereum.util.RLP.java

License:Open Source License

public static byte[] encodeElement(@Nullable byte[] srcData) {
    if (srcData == null || srcData.length == 0) {
        return new byte[] { (byte) OFFSET_SHORT_ITEM };
    } else if (isSingleZero(srcData)) {
        return srcData;
    } else if (srcData.length == 1 && (srcData[0] & 0xFF) < OFFSET_SHORT_ITEM) {
        return srcData;
    } else if (srcData.length < SIZE_THRESHOLD) {
        // length = 8X
        byte length = (byte) (OFFSET_SHORT_ITEM + srcData.length);
        byte[] data = Arrays.copyOf(srcData, srcData.length + 1);
        System.arraycopy(data, 0, data, 1, srcData.length);
        data[0] = length;/*from  w  ww  . j  av a2 s . com*/

        return data;
    } else {
        // length of length = BX
        // prefix = [BX, [length]]
        int tmpLength = srcData.length;
        byte byteNum = 0;
        while (tmpLength != 0) {
            ++byteNum;
            tmpLength = tmpLength >> 8;
        }
        byte[] lenBytes = new byte[byteNum];
        for (int i = 0; i < byteNum; ++i) {
            lenBytes[byteNum - 1 - i] = (byte) ((srcData.length >> (8 * i)) & 0xFF);
        }
        // first byte = F7 + bytes.length
        byte[] data = Arrays.copyOf(srcData, srcData.length + 1 + byteNum);
        System.arraycopy(data, 0, data, 1 + byteNum, srcData.length);
        data[0] = (byte) (OFFSET_LONG_ITEM + byteNum);
        System.arraycopy(lenBytes, 0, data, 1, lenBytes.length);

        return data;
    }
}

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From source file:org.hyperledger.common.MasterPrivateKey.java

License:Apache License

/**
 * Recreate a key from BIP32 serialization
 *
 * @param serialized/* w  w  w . j av  a  2s. c  o  m*/
 * @return MasterPrivateKey
 * @throws HyperLedgerException
 */
public static MasterPrivateKey parse(String serialized) throws HyperLedgerException {
    byte[] data = ByteUtils.fromBase58WithChecksum(serialized);
    if (data.length != 78) {
        throw new HyperLedgerException("invalid master key");
    }
    byte[] type = Arrays.copyOf(data, 4);
    if (!Arrays.areEqual(type, xprv) && !Arrays.areEqual(type, tprv)) {
        throw new HyperLedgerException("invalid magic number for a master private key");
    }

    int depth = data[4] & 0xff;

    int parent = data[5] & 0xff;
    parent <<= 8;
    parent |= data[6] & 0xff;
    parent <<= 8;
    parent |= data[7] & 0xff;
    parent <<= 8;
    parent |= data[8] & 0xff;

    int sequence = data[9] & 0xff;
    sequence <<= 8;
    sequence |= data[10] & 0xff;
    sequence <<= 8;
    sequence |= data[11] & 0xff;
    sequence <<= 8;
    sequence |= data[12] & 0xff;

    byte[] chainCode = Arrays.copyOfRange(data, 13, 13 + 32);
    byte[] pubOrPriv = Arrays.copyOfRange(data, 13 + 32, data.length);
    return new MasterPrivateKey(new PrivateKey(new BigInteger(1, pubOrPriv), true), chainCode, depth, parent,
            sequence);
}

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From source file:org.hyperledger.common.MasterPublicKey.java

License:Apache License

/**
 * Parse a MasterPublickey from its BIP32 compliant serialization.
 *
 * @param serialized a Base58 string/*from   w  ww.ja  v  a2 s .c  o m*/
 * @return a master key
 * @throws HyperLedgerException for invalid format
 */
public static MasterPublicKey parse(String serialized) throws HyperLedgerException {
    byte[] data = ByteUtils.fromBase58WithChecksum(serialized);
    if (data.length != 78) {
        throw new HyperLedgerException("invalid extended key");
    }
    byte[] type = Arrays.copyOf(data, 4);
    if (!Arrays.areEqual(type, xpub) && !Arrays.areEqual(type, tpub)) {
        throw new HyperLedgerException("invalid magic number for an master public key");
    }

    int depth = data[4] & 0xff;

    int parent = data[5] & 0xff;
    parent <<= 8;
    parent |= data[6] & 0xff;
    parent <<= 8;
    parent |= data[7] & 0xff;
    parent <<= 8;
    parent |= data[8] & 0xff;

    int sequence = data[9] & 0xff;
    sequence <<= 8;
    sequence |= data[10] & 0xff;
    sequence <<= 8;
    sequence |= data[11] & 0xff;
    sequence <<= 8;
    sequence |= data[12] & 0xff;

    byte[] chainCode = Arrays.copyOfRange(data, 13, 13 + 32);
    byte[] pubOrPriv = Arrays.copyOfRange(data, 13 + 32, data.length);
    return new MasterPublicKey(new PublicKey(pubOrPriv, true), chainCode, depth, parent, sequence);
}

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From source file:org.multibit.viewsystem.swing.action.CreateRemoteWalletSubmitAction.java

License:MIT License

public void createNewWallet(String newWalletFilename) {
    String message;/*  w w  w. ja  v a  2s.co m*/
    if (new File(newWalletFilename).isDirectory()) {
        message = controller.getLocaliser().getString("createNewWalletAction.walletFileIsADirectory",
                new Object[] { newWalletFilename });
        log.debug(message);
        MessageManager.INSTANCE.addMessage(new Message(message));
        return;
    }

    // If the filename has no extension, put on the wallet extension.
    if (!newWalletFilename.contains(".")) {
        newWalletFilename = newWalletFilename + "." + BitcoinModel.WALLET_FILE_EXTENSION;
    }

    File newWalletFile = new File(newWalletFilename);

    boolean theWalletWasNotOpenedSuccessfully = false;

    try {
        // If file exists, load the existing wallet.
        if (newWalletFile.exists()) {
            WalletData perWalletModelData = this.bitcoinController.getFileHandler().loadFromFile(newWalletFile);
            if (perWalletModelData != null) {
                // Use the existing wallet.
                this.bitcoinController.addWalletFromFilename(newWalletFile.getAbsolutePath());
                this.bitcoinController.getModel().setActiveWalletByFilename(newWalletFilename);
                controller.getModel().setUserPreference(BitcoinModel.GRAB_FOCUS_FOR_ACTIVE_WALLET, "true");
                controller.fireRecreateAllViews(true);
                controller.fireDataChangedUpdateNow();
            }
        } else {
            // Create a new wallet - protobuf.2 initially for backwards compatibility.
            Wallet newWallet = new Wallet(this.bitcoinController.getModel().getNetworkParameters());

            SecureRandom prGen = new SecureRandom();
            byte[] oneTimePass = new byte[256];
            prGen.nextBytes(oneTimePass);

            SignatureTest t = new SignatureTest(2);
            PublicParameters params = new PublicParameters(SignatureTest.CURVE, t.nHat, t.kPrime, t.h1, t.h2,
                    t.alicesPallierPubKey, t.otherPallierPubKey);
            Alice alice = new Alice(t.aliceShare, t.publicKey, new SecureRandom(), t.paillier, params);

            File keystore = new File(KEYSTORE_FILENAME);

            Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
            KeyStore ks = KeyStore.getInstance("BKS");

            if (!keystore.exists()) {
                MakeCertificate.generateSelfSignedCertificate("compTLSCert", keystore, KEYSTORE_PASSWORD);
            }

            ks.load(new FileInputStream(keystore), KEYSTORE_PASSWORD.toCharArray());

            X509Certificate cert = (X509Certificate) ks.getCertificate("compTLSCert");
            byte[] certBytes = cert.getEncoded();
            System.out.println("cert is " + certBytes.length + " bytes");

            byte[] fullBytes = Arrays.copyOf(oneTimePass, oneTimePass.length + certBytes.length);
            System.arraycopy(certBytes, 0, fullBytes, oneTimePass.length, certBytes.length);
            String fullString = DatatypeConverter.printBase64Binary(fullBytes);

            QRCodeWriter writer = new QRCodeWriter();
            Map<EncodeHintType, Object> hints = new EnumMap<EncodeHintType, Object>(EncodeHintType.class);
            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
            hints.put(EncodeHintType.MARGIN, 0);
            BitMatrix matrix = writer.encode(fullString, BarcodeFormat.QR_CODE, 300, 300, hints);

            BufferedImage image = new BufferedImage(TAM_QRCODE, TAM_QRCODE, BufferedImage.TYPE_INT_RGB);
            image.createGraphics();

            Graphics2D graphics = (Graphics2D) image.getGraphics();
            graphics.setColor(Color.WHITE);
            graphics.fillRect(0, 0, TAM_QRCODE, TAM_QRCODE);
            graphics.setColor(Color.BLACK);

            for (int i = matrix.getTopLeftOnBit()[0]; i < TAM_QRCODE; i++) {
                for (int j = matrix.getTopLeftOnBit()[1]; j < TAM_QRCODE; j++) {
                    if (matrix.get(i, j)) {
                        graphics.fillRect(i, j, 1, 1);
                    }
                }
            }

            ByteArrayOutputStream os = new ByteArrayOutputStream();
            ImageIO.write(image, "png", os);

            Icon icon = new ImageIcon(image);

            JLabel iconLabel = new JLabel(icon);
            JPanel iconPanel = new JPanel(new GridBagLayout());
            iconPanel.add(iconLabel);

            JPanel mainPanel = new JPanel(new BorderLayout());
            JLabel label = new JLabel(
                    "Capture this image to pair with phone. Warning: This will never be shown again");
            Border paddingBorder = BorderFactory.createEmptyBorder(30, 10, 10, 10);
            label.setBorder(paddingBorder);
            mainPanel.add(label);
            mainPanel.add(iconPanel, BorderLayout.NORTH);
            log.debug("Showing wallet qr panel");
            JOptionPane.showMessageDialog(null, mainPanel, "Two Factor", JOptionPane.PLAIN_MESSAGE);
            log.debug("Showed wallet qr panel");

            log.debug("Trying to create ECKey");
            RemoteECKey newKey = new RemoteECKey(alice, params, t.bobShare, t.publicKey, oneTimePass, keystore,
                    KEYSTORE_PASSWORD);
            log.debug("Finished trying to create ECKey");
            String filename = Utils.bytesToHexString(newKey.getPubKeyHash());

            FileOutputStream fileOut = new FileOutputStream("/Users/hkalodner/btfa_work/" + filename + ".key");
            ObjectOutputStream out = new ObjectOutputStream(fileOut);
            out.writeObject(newKey);
            out.close();
            fileOut.close();
            log.debug("Created ECKey");

            newWallet.addKey(newKey);
            WalletData perWalletModelData = new WalletData();
            perWalletModelData.setWalletInfo(
                    new WalletInfoData(newWalletFilename, newWallet, MultiBitWalletVersion.PROTOBUF));
            perWalletModelData.setWallet(newWallet);
            perWalletModelData.setWalletFilename(newWalletFilename);
            perWalletModelData.setWalletDescription(
                    controller.getLocaliser().getString("createNewWalletSubmitAction.defaultDescription"));
            this.bitcoinController.getFileHandler().savePerWalletModelData(perWalletModelData, true);

            // Start using the new file as the wallet.
            this.bitcoinController.addWalletFromFilename(newWalletFile.getAbsolutePath());
            this.bitcoinController.getModel().setActiveWalletByFilename(newWalletFilename);
            controller.getModel().setUserPreference(BitcoinModel.GRAB_FOCUS_FOR_ACTIVE_WALLET, "true");

            // Save the user properties to disk.
            FileHandler.writeUserPreferences(this.bitcoinController);
            log.debug("User preferences with new wallet written successfully");

            // Backup the wallet and wallet info.
            BackupManager.INSTANCE.backupPerWalletModelData(bitcoinController.getFileHandler(),
                    perWalletModelData);

            controller.fireRecreateAllViews(true);
            controller.fireDataChangedUpdateNow();
        }
    } catch (WalletLoadException e) {
        e.printStackTrace();
        message = controller.getLocaliser().getString("createNewWalletAction.walletCouldNotBeCreated",
                new Object[] { newWalletFilename, e.getMessage() });
        log.error(message);
        MessageManager.INSTANCE.addMessage(new Message(message));
        theWalletWasNotOpenedSuccessfully = true;
    } catch (WalletSaveException e) {
        e.printStackTrace();
        message = controller.getLocaliser().getString("createNewWalletAction.walletCouldNotBeCreated",
                new Object[] { newWalletFilename, e.getMessage() });
        log.error(message);
        MessageManager.INSTANCE.addMessage(new Message(message));
        theWalletWasNotOpenedSuccessfully = true;
    } catch (WalletVersionException e) {
        e.printStackTrace();
        message = controller.getLocaliser().getString("createNewWalletAction.walletCouldNotBeCreated",
                new Object[] { newWalletFilename, e.getMessage() });
        log.error(message);
        MessageManager.INSTANCE.addMessage(new Message(message));
        theWalletWasNotOpenedSuccessfully = true;
    } catch (IOException e) {
        e.printStackTrace();
        message = controller.getLocaliser().getString("createNewWalletAction.walletCouldNotBeCreated",
                new Object[] { newWalletFilename, e.getMessage() });
        log.error(message);
        MessageManager.INSTANCE.addMessage(new Message(message));
        theWalletWasNotOpenedSuccessfully = true;
    } catch (KeyStoreException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (CertificateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (WriterException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }

    if (theWalletWasNotOpenedSuccessfully) {
        WalletData loopData = this.bitcoinController.getModel()
                .getPerWalletModelDataByWalletFilename(newWalletFilename);
        if (loopData != null) {
            // Clear the backup wallet filename - this prevents it being automatically overwritten.
            if (loopData.getWalletInfo() != null) {
                loopData.getWalletInfo().put(BitcoinModel.WALLET_BACKUP_FILE, "");
            }
        }
    }
}

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From source file:org.panbox.core.crypto.Obfuscator.java

License:Open Source License

private synchronized byte[] createIV(String originalFileName, SecretKey obKey) throws ObfuscationException {
    try {/*from  w  w w . ja  va  2s  .c om*/
        ivDigest.update(originalFileName.getBytes(PanboxConstants.STANDARD_CHARSET));
        ivDigest.update(obKey.getEncoded());
        byte[] hash = ivDigest.digest();

        // truncate to IV size
        return Arrays.copyOf(hash, KeyConstants.SYMMETRIC_BLOCK_SIZE);

    } catch (UnsupportedEncodingException e) {
        logger.error("Unsupported encoding", e);
        throw new ObfuscationException("Error creating IV for filename due to unsupported encoding!", e);
    }
}

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From source file:org.sejda.sambox.encryption.Algorithm1.java

License:Apache License

private Algorithm1(EncryptionAlgorithmEngine engine, byte[] key) {
    requireNotNullArg(engine, "Encryption engine cannot be null");
    requireArg(key != null && key.length > 0, "Encryption key cannot be blank");
    this.engine = engine;
    keyCalculator = (cosKey) -> {//from  w  w  w.  java2s.c  o m
        requireNotNullArg(cosKey, "Cannot encrypt a reference with a null key");
        byte[] append = new byte[5];
        append[0] = (byte) (cosKey.objectNumber() & 0xff);
        append[1] = (byte) (cosKey.objectNumber() >> 8 & 0xff);
        append[2] = (byte) (cosKey.objectNumber() >> 16 & 0xff);
        append[3] = (byte) (cosKey.generation() & 0xff);
        append[4] = (byte) (cosKey.generation() >> 8 & 0xff);
        return concatenate(key, append);
    };
    md5Initializer = (newKey) -> {
        digest.reset();
        digest.update(newKey);
        return newKey;
    };
    md5ToKey = (newKey) -> {
        return Arrays.copyOf(digest.digest(), Math.min(newKey.length, 16));
    };
}

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From source file:org.sejda.sambox.encryption.Algorithm2BExtensionLevel3.java

License:Apache License

@Override
public byte[] computeHash(byte[] input, byte[] password) {
    return Arrays.copyOf(digest.digest(input), 32);
}

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From source file:org.sejda.sambox.encryption.Algorithm3.java

License:Apache License

@Override
public byte[] computePassword(EncryptionContext context) {
    byte[] ownerBytes = context.security.getOwnerPassword();
    byte[] userBytes = context.security.getUserPassword();
    byte[] padded = padOrTruncate(of(ownerBytes).filter(p -> p.length > 0).orElseGet(() -> userBytes));
    byte[] paddedUser = padOrTruncate(userBytes);
    digest.reset();/*w  w  w.ja v  a  2s  .c  o m*/
    byte[] arc4Key = digest.digest(padded);
    if (StandardSecurityHandlerRevision.R3.compareTo(context.security.encryption.revision) <= 0) {
        for (int i = 0; i < 50; ++i) {
            digest.update(arc4Key, 0, context.security.encryption.revision.length);
            arc4Key = Arrays.copyOf(digest.digest(), context.security.encryption.revision.length);
        }
        byte[] encrypted = engine.encryptBytes(paddedUser, arc4Key);
        byte[] iterationKey = new byte[arc4Key.length];
        for (int i = 1; i < 20; i++) {
            iterationKey = Arrays.copyOf(arc4Key, arc4Key.length);
            for (int j = 0; j < iterationKey.length; j++) {
                iterationKey[j] = (byte) (iterationKey[j] ^ (byte) i);
            }
            encrypted = engine.encryptBytes(encrypted, iterationKey);
        }
        return encrypted;
    }
    return engine.encryptBytes(paddedUser, arc4Key);
}

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From source file:org.sejda.sambox.encryption.Algorithm5.java

License:Apache License

@Override
public byte[] computePassword(EncryptionContext context) {
    context.security.encryption.revision.requireAtLeast(StandardSecurityHandlerRevision.R3,
            "Algorithm 5 requires a security handler of revision 3 or greater");
    digest.reset();//w ww  .j  av  a 2  s.  com
    digest.update(ENCRYPT_PADDING);
    byte[] encrypted = engine.encryptBytes(Arrays.copyOf(digest.digest(context.documentId()), 16),
            context.key());
    byte[] iterationKey = new byte[context.key().length];
    for (int i = 1; i < 20; i++) {
        iterationKey = Arrays.copyOf(context.key(), context.key().length);
        for (int j = 0; j < iterationKey.length; j++) {
            iterationKey[j] = (byte) (iterationKey[j] ^ (byte) i);
        }
        encrypted = engine.encryptBytes(encrypted, iterationKey);
    }
    return Arrays.concatenate(Arrays.copyOf(encrypted, 16), Arrays.copyOf(ENCRYPT_PADDING, 16));
}

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