Example usage for javax.crypto CipherOutputStream flush

Introduction

In this page you can find the example usage for javax.crypto CipherOutputStream flush.

Prototype

public void flush() throws IOException 

Source Link

Document

Flushes this output stream by forcing any buffered output bytes that have already been processed by the encapsulated cipher object to be written out.

Usage

From source file:org.apache.synapse.commons.security.wrappers.CipherWrapper.java

/**
 * Returns the output of the cipher operation.
 * This expose the 'getSecret' abstraction and hide operation of the underlying cipher
 *
 * @param inputStream Input as a stream. This can be either cipher or plain text
 * @return Secret as String.This can be either cipher or plain text
 *//*from   w w  w. j av a  2 s  . c  o m*/
public String getSecret(InputStream inputStream) {

    InputStream sourceStream = null;
    if (cipherInformation.getInType() != null) {
        try {
            sourceStream = EncodingHelper.decode(inputStream, cipherInformation.getInType());
        } catch (IOException e) {
            handleException("IOError when decoding the input stream for cipher ", e);
        }
    } else {
        sourceStream = inputStream;
    }

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CipherOutputStream out = new CipherOutputStream(baos, cipher);

    byte[] buffer = new byte[64];
    int length;
    try {
        while ((length = sourceStream.read(buffer)) != -1) {
            out.write(buffer, 0, length);
        }
    } catch (IOException e) {
        handleException("IOError when reading the input stream for cipher ", e);
    } finally {
        try {
            sourceStream.close();
            out.flush();
            out.close();
        } catch (IOException ignored) {
            // ignore exception
        }
    }

    String secret;
    if (cipherInformation.getOutType() != null) {
        secret = EncodingHelper.encode(baos, cipherInformation.getOutType());
    } else {
        secret = baos.toString();
    }
    return secret;
}

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From source file:de.schildbach.wallet.util.FingerprintHelper.java

@RequiresApi(api = Build.VERSION_CODES.M)
public boolean encryptPassword(Cipher cipher, String password) {
    try {/*from   w w w  .java 2 s .  c om*/
        // Encrypt the text
        if (password.isEmpty()) {
            log.info("Password is empty");
            return false;
        }

        if (cipher == null) {
            log.info("Could not create cipher");
            return false;
        }

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        CipherOutputStream cipherOutputStream = new CipherOutputStream(outputStream, cipher);
        byte[] bytes = password.getBytes(Charset.defaultCharset());
        cipherOutputStream.write(bytes);
        cipherOutputStream.flush();
        cipherOutputStream.close();
        saveEncryptedPassword(encodeBytes(outputStream.toByteArray()));
    } catch (Throwable t) {
        log.info("Encryption failed " + t.getMessage());
        return false;
    }

    return true;
}

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From source file:org.apache.synapse.securevault.BaseCipher.java

/**
 * Do cryptographic operation/*www  .j  av  a  2 s. c  o  m*/
 *
 * @param inputStream Input Stream
 * @return result
 */
private byte[] doCipherOperation(byte[] inputStream) {

    InputStream sourceStream = new ByteArrayInputStream(inputStream);
    if (cipherInformation.getInType() != null) {
        try {
            sourceStream = EncodingHelper.decode(sourceStream, cipherInformation.getInType());
        } catch (IOException e) {
            throw new SecureVaultException("IOError when decoding the input " + "stream for cipher ", e, log);
        }
    }

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CipherOutputStream out = new CipherOutputStream(baos, cipher);

    byte[] buffer = new byte[64];
    int length;
    try {
        while ((length = sourceStream.read(buffer)) != -1) {
            out.write(buffer, 0, length);
        }
    } catch (IOException e) {
        throw new SecureVaultException("IOError when reading the input" + " stream for cipher ", e, log);
    } finally {
        try {
            sourceStream.close();
            out.flush();
            out.close();
        } catch (IOException ignored) {
            // ignore exception
        }
    }

    if (cipherInformation.getOutType() != null) {
        return EncodingHelper.encode(baos, cipherInformation.getOutType());
    } else {
        return baos.toByteArray();
    }
}

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From source file:craterdog.security.MessageCryptex.java

@Override
public void encryptStream(SecretKey sharedKey, InputStream input, OutputStream output) throws IOException {
    logger.entry();/*from  w ww . java 2 s. c  o  m*/
    CipherOutputStream cipherOutput = null;
    byte[] buffer = new byte[2048];
    try {
        logger.debug("Creating a special output stream to do the work...");
        cipherOutput = encryptionOutputStream(sharedKey, output);

        logger.debug("Reading from the input and writing to the encrypting output stream...");
        // Can't use IOUtils.copy(input, cipherOutput) here because need to purge buffer later...
        int bytesRead;
        while ((bytesRead = input.read(buffer)) != -1) {
            cipherOutput.write(buffer, 0, bytesRead);
        }
        cipherOutput.flush();
    } finally {
        logger.debug("Purging any plaintext hanging around in memory...");
        Arrays.fill(buffer, (byte) 0);

        if (cipherOutput != null)
            cipherOutput.close();
    }
    logger.exit();
}

---

From source file:nl.afas.cordova.plugin.secureLocalStorage.SecureLocalStorage.java

private void writeAndEncryptStorage(KeyStore keyStore, HashMap<String, String> hashMap)
        throws SecureLocalStorageException {

    try {/* www .  ja  v  a  2  s .com*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        try {
            ObjectOutputStream oos = new ObjectOutputStream(bos);
            try {
                oos.writeObject(hashMap);
            } finally {
                oos.close();
            }
        } finally {
            bos.close();
        }

        SecretKey key = getSecretKey(keyStore);

        Cipher input = Cipher.getInstance("DES");
        input.init(Cipher.ENCRYPT_MODE, key);

        // encrypt the hashmap
        FileOutputStream fos = _cordova.getActivity().openFileOutput(SECURELOCALSTORAGEFILE,
                Context.MODE_PRIVATE);
        try {
            CipherOutputStream cipherOutputStream = new CipherOutputStream(fos, input);
            try {
                cipherOutputStream.write(bos.toByteArray());
            } finally {
                cipherOutputStream.flush();
                cipherOutputStream.close();
            }
        } finally {
            fos.flush();
            fos.close();
        }

    } catch (Exception e) {
        Log.e("SecureStorage", "Write", e);
        throw new SecureLocalStorageException("Error encrypting storage", e);
    }
}

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From source file:com.denel.facepatrol.MainActivity.java

private void decryptfile(Context mcontext, SecretKey key)
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {

    File infile = mcontext.getDatabasePath(dbname_en);
    InputStream fis = new FileInputStream(infile);
    File outfile = mcontext.getDatabasePath(dbname);
    // parent directory for his file if it doesn't exist,
    // in this case it returns a false.
    outfile.getParentFile().mkdirs();/*from  w  ww  .  jav a  2s .c  om*/
    // This stream write the decrypted text. This stream will be wrapped by another stream. 
    FileOutputStream fos = new FileOutputStream(outfile);
    // Length is 16 byte // Careful when taking user input!!! 
    // http://stackoverflow.com/a/3452620/1188357 
    SecretKeySpec sks = new SecretKeySpec(key.getEncoded(), "AES");
    // Create cipher 
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, sks);
    // Wrap the output stream 
    CipherOutputStream cos = new CipherOutputStream(fos, cipher);
    // Write bytes 
    int b;
    byte[] d = new byte[8];
    while ((b = fis.read(d)) != -1) {
        cos.write(d, 0, b);
    } // Flush and close streams. 
    cos.flush();
    cos.close();
    fis.close();
    // delete the encrypted file
    if (infile.exists()) {
        infile.delete();
    }
}

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From source file:com.denel.facepatrol.MainActivity.java

private void encryptfile(Context mcontext, SecretKey key)
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {

    // This will probably change when I will the database will be downloaded from the server
    boolean db_file_exists = mcontext.getDatabasePath(dbname).exists();
    InputStream fis = null;/*from  w ww  .  j  a  v a 2  s . c  o m*/
    File infile = mcontext.getDatabasePath(dbname);
    // check if database file exists to prevent downloading the file each start
    if (db_file_exists) {
        fis = new FileInputStream(infile);
    } else {
        fis = mcontext.getAssets().open(dbname);
    }
    // This stream write the encrypted text. This stream will be wrapped by another stream. 
    FileOutputStream fos = new FileOutputStream(mcontext.getDatabasePath(dbname_en).getAbsolutePath());
    // Length is 16 byte // Careful when taking user input!!! http://stackoverflow.com/a/3452620/1188357 
    SecretKeySpec sks = new SecretKeySpec(key.getEncoded(), "AES");
    // Create cipher 
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, sks);
    // Wrap the output stream 
    CipherOutputStream cos = new CipherOutputStream(fos, cipher);
    // Write bytes 
    int b;
    byte[] d = new byte[8];
    while ((b = fis.read(d)) != -1) {
        cos.write(d, 0, b);
    } // Flush and close streams. 
    cos.flush();
    cos.close();
    fis.close();
    // delete the decrypted file
    if (infile.exists()) {
        infile.delete();
    }
}

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From source file:com.aperigeek.dropvault.web.dao.MongoFileService.java

protected File createDataFile(InputStream data, String username, char[] password) throws IOException {
    try {/*from w w w . j  av a  2  s  .  c  o  m*/
        String fileName = UUID.randomUUID().toString();

        File folder = new File(storageFolder, username);
        folder = new File(folder, fileName.substring(0, 2));
        folder.mkdirs();

        File file = new File(folder, fileName);

        Cipher cipher = Cipher.getInstance("Blowfish");
        cipher.init(Cipher.ENCRYPT_MODE, getSecretKey(username, password));

        OutputStream fOut = new BufferedOutputStream(new FileOutputStream(file));
        CipherOutputStream out = new CipherOutputStream(fOut, cipher);

        InputStream in = new BufferedInputStream(data);
        byte[] buffer = new byte[2048];
        int readed;
        while ((readed = in.read(buffer)) != -1) {
            out.write(buffer, 0, readed);
        }
        in.close();

        out.flush();
        out.close();
        fOut.flush();
        fOut.close();

        return file;
    } catch (Exception ex) {
        // TODO: better exception handling
        Logger.getAnonymousLogger().log(Level.SEVERE, "ERROR", ex);
        throw new RuntimeException(ex);
    } finally {
        data.close();
    }
}

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From source file:org.apache.camel.converter.crypto.CryptoDataFormat.java

public void marshal(Exchange exchange, Object graph, OutputStream outputStream) throws Exception {
    byte[] iv = getInitializationVector(exchange);
    Key key = getKey(exchange);/*from   w w w  .ja va 2  s  . c  o  m*/

    CipherOutputStream cipherStream = new CipherOutputStream(outputStream,
            initializeCipher(ENCRYPT_MODE, key, iv));
    InputStream plaintextStream = ExchangeHelper.convertToMandatoryType(exchange, InputStream.class, graph);
    HMACAccumulator hmac = getMessageAuthenticationCode(key);
    if (plaintextStream != null) {
        inlineInitVector(outputStream, iv);
        byte[] buffer = new byte[bufferSize];
        int read;
        try {
            while ((read = plaintextStream.read(buffer)) > 0) {
                cipherStream.write(buffer, 0, read);
                cipherStream.flush();
                hmac.encryptUpdate(buffer, read);
            }
            // only write if there is data to write (IBM JDK throws exception if no data)
            byte[] mac = hmac.getCalculatedMac();
            if (mac != null && mac.length > 0) {
                cipherStream.write(mac);
            }
        } finally {
            IOHelper.close(cipherStream, "cipher", LOG);
        }
    }
}

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From source file:com.cws.esolutions.security.processors.impl.FileSecurityProcessorImpl.java

/**
 * @see com.cws.esolutions.security.processors.interfaces.IFileSecurityProcessor#encryptFile(com.cws.esolutions.security.processors.dto.FileSecurityRequest)
 */// w w  w.j a v a  2  s  . c  o m
public synchronized FileSecurityResponse encryptFile(final FileSecurityRequest request)
        throws FileSecurityException {
    final String methodName = IFileSecurityProcessor.CNAME
            + "#encryptFile(final FileSecurityRequest request) throws FileSecurityException";

    if (DEBUG) {
        DEBUGGER.debug(methodName);
        DEBUGGER.debug("FileSecurityRequest: {}", request);
    }

    FileSecurityResponse response = new FileSecurityResponse();

    final RequestHostInfo reqInfo = request.getHostInfo();
    final UserAccount userAccount = request.getUserAccount();
    final KeyManager keyManager = KeyManagementFactory.getKeyManager(keyConfig.getKeyManager());

    if (DEBUG) {
        DEBUGGER.debug("RequestHostInfo: {}", reqInfo);
        DEBUGGER.debug("UserAccount", userAccount);
        DEBUGGER.debug("KeyManager: {}", keyManager);
    }

    try {
        KeyPair keyPair = keyManager.returnKeys(userAccount.getGuid());

        if (keyPair != null) {
            Cipher cipher = Cipher.getInstance(fileSecurityConfig.getEncryptionAlgorithm());
            cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPrivate());

            if (DEBUG) {
                DEBUGGER.debug("Cipher: {}", cipher);
            }

            CipherOutputStream cipherOut = new CipherOutputStream(
                    new FileOutputStream(request.getEncryptedFile()), cipher);

            if (DEBUG) {
                DEBUGGER.debug("CipherOutputStream: {}", cipherOut);
            }

            byte[] data = IOUtils.toByteArray(new FileInputStream(request.getDecryptedFile()));
            IOUtils.write(data, cipherOut);

            cipherOut.flush();
            cipherOut.close();

            if ((request.getEncryptedFile().exists()) && (request.getEncryptedFile().length() != 0)) {
                response.setSignedFile(request.getEncryptedFile());
                response.setRequestStatus(SecurityRequestStatus.SUCCESS);
            } else {
                response.setRequestStatus(SecurityRequestStatus.FAILURE);
            }
        } else {
            response.setRequestStatus(SecurityRequestStatus.FAILURE);
        }
    } catch (IOException iox) {
        ERROR_RECORDER.error(iox.getMessage(), iox);

        throw new FileSecurityException(iox.getMessage(), iox);
    } catch (NoSuchAlgorithmException nsax) {
        ERROR_RECORDER.error(nsax.getMessage(), nsax);

        throw new FileSecurityException(nsax.getMessage(), nsax);
    } catch (NoSuchPaddingException nspx) {
        ERROR_RECORDER.error(nspx.getMessage(), nspx);

        throw new FileSecurityException(nspx.getMessage(), nspx);
    } catch (InvalidKeyException ikx) {
        ERROR_RECORDER.error(ikx.getMessage(), ikx);

        throw new FileSecurityException(ikx.getMessage(), ikx);
    } catch (KeyManagementException kmx) {
        ERROR_RECORDER.error(kmx.getMessage(), kmx);

        throw new FileSecurityException(kmx.getMessage(), kmx);
    } finally {
        // audit
        try {
            AuditEntry auditEntry = new AuditEntry();
            auditEntry.setHostInfo(reqInfo);
            auditEntry.setAuditType(AuditType.ENCRYPTFILE);
            auditEntry.setUserAccount(userAccount);
            auditEntry.setAuthorized(Boolean.TRUE);
            auditEntry.setApplicationId(request.getApplicationId());
            auditEntry.setApplicationName(request.getAppName());

            if (DEBUG) {
                DEBUGGER.debug("AuditEntry: {}", auditEntry);
            }

            AuditRequest auditRequest = new AuditRequest();
            auditRequest.setAuditEntry(auditEntry);

            if (DEBUG) {
                DEBUGGER.debug("AuditRequest: {}", auditRequest);
            }

            auditor.auditRequest(auditRequest);
        } catch (AuditServiceException asx) {
            ERROR_RECORDER.error(asx.getMessage(), asx);
        }
    }

    return response;
}

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