Example usage for javax.crypto CipherOutputStream CipherOutputStream

Introduction

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

Prototype

public CipherOutputStream(OutputStream os, Cipher c) 

Source Link

Document

Constructs a CipherOutputStream from an OutputStream and a Cipher.

Usage

From source file:org.zuinnote.hadoop.office.format.common.writer.msexcel.internal.EncryptedTempData.java

public OutputStream getOutputStream() throws FileNotFoundException {
    if (this.ciEncrypt != null) { // encrypted tempdata
        LOG.debug("Returning encrypted OutputStream for " + this.tempFile.getAbsolutePath());

        return new CipherOutputStream(new FileOutputStream(this.tempFile), this.ciEncrypt);
    }//from  w  ww.  j  a  va  2  s .c o m
    return new FileOutputStream(this.tempFile);
}

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From source file:org.sakuli.services.cipher.AesCbcCipher.java

public static byte[] encryptBytes(SecureRandom rng, SecretKey aesKey, byte[] plaintext)
        throws SakuliCipherException {
    checkCipherParameters(aesKey, plaintext);
    final byte[] ciphertext;
    try {/*ww  w .java 2 s  .c  om*/

        final ByteArrayOutputStream baos = new ByteArrayOutputStream();

        final Cipher aesCBC = Cipher.getInstance(CBC_ALGORITHM);
        final IvParameterSpec ivForCBC = createIV(aesCBC.getBlockSize(), Optional.of(rng));
        aesCBC.init(Cipher.ENCRYPT_MODE, aesKey, ivForCBC);

        baos.write(ivForCBC.getIV());

        try (final CipherOutputStream cos = new CipherOutputStream(baos, aesCBC)) {
            cos.write(plaintext);
        }

        ciphertext = baos.toByteArray();
        return ciphertext;
    } catch (Exception e) {
        throw new SakuliCipherException(e, "Error during encrypting secret!");
    }
}

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From source file:org.pieShare.pieShareApp.service.fileService.fileEncryptionService.FileEncryptionService.java

@Override
public void encryptFile(File source, File target) {

    try {//from  w  ww .ja v  a2s  . c om
        FileInputStream stream = new FileInputStream(source);
        FileOutputStream fileStream = new FileOutputStream(target);
        CipherOutputStream outputStream = new CipherOutputStream(fileStream,
                this.getCipher(Cipher.ENCRYPT_MODE));
        //Base64OutputStream base64OutStream = new Base64OutputStream(fileStream);
        this.rewriteFile(stream, outputStream);
    } catch (FileNotFoundException ex) {
        PieLogger.error(this.getClass(), "Exception in FileEncrypterService!", ex);
    } catch (IOException ex) {
        PieLogger.error(this.getClass(), "Exception in FileEncrypterService!", ex);
    } catch (InvalidKeyException ex) {
        PieLogger.error(this.getClass(), "Exception in FileEncrypterService!", ex);
    }
}

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From source file:jatoo.properties.FileProperties.java

public synchronized FileProperties save() throws IOException {

    ///*  www  .  jav  a2  s  . com*/
    // ensure the parent directories

    file.getAbsoluteFile().getParentFile().mkdirs();

    //
    // save

    OutputStream stream = null;

    try {

        stream = new FileOutputStream(file);

        if (cipherEncrypt != null) {
            stream = new CipherOutputStream(stream, cipherEncrypt);
        }

        store(stream, null);
    }

    catch (IOException e) {
        throw e;
    }

    finally {
        if (stream != null) {
            try {
                stream.close();
            } catch (IOException e) {
            }
        }
    }

    return this;
}

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From source file:gobblin.crypto.EncodingBenchmark.java

@Benchmark
public byte[] write1KRecordsDirectCipherStream(EncodingBenchmarkState state) throws Exception {
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, state.credStore.getKey());
    ByteArrayOutputStream sink = new ByteArrayOutputStream();
    OutputStream os = new CipherOutputStream(sink, cipher);
    os.write(state.OneKBytes);//from w  ww.ja  v a  2  s.c  om
    os.close();

    return sink.toByteArray();
}

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From source file:CipherSocket.java

public OutputStream getOutputStream() throws IOException {
    OutputStream os = delegate == null ? super.getOutputStream() : delegate.getOutputStream();
    Cipher cipher = null;/*from  w  w  w  .  j a va2s  . c  o m*/
    try {
        cipher = Cipher.getInstance(algorithm);
        int size = cipher.getBlockSize();
        byte[] tmp = new byte[size];
        Arrays.fill(tmp, (byte) 15);
        IvParameterSpec iv = new IvParameterSpec(tmp);
        cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    } catch (Exception e) {
        throw new IOException("Failed to init cipher: " + e.getMessage());
    }
    CipherOutputStream cos = new CipherOutputStream(os, cipher);
    return cos;
}

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From source file:org.codice.ddf.configuration.migration.CipherUtils.java

/**
 * Wraps a given {@link OutputStream} in a {@link CipherOutputStream}
 *
 * @param outputStream/*from  ww w. j  av a 2 s  .  c  o  m*/
 * @return a {@link CipherOutputStream} for writing encrypted {@link java.util.zip.ZipEntry}
 *     contents
 */
public CipherOutputStream getCipherOutputStream(OutputStream outputStream) {
    return new CipherOutputStream(outputStream, cipher);
}

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From source file:jfs.sync.encryption.JFSEncryptedStream.java

public static OutputStream createOutputStream(long compressionLimit, OutputStream baseOutputStream, long length,
        Cipher cipher) throws IOException {
    OutputStream result = null;//w w  w .java  2 s .  c o  m
    Runtime runtime = Runtime.getRuntime();
    long freeMem = runtime.totalMemory() / SPACE_RESERVE;
    if (length >= freeMem) {
        if (log.isWarnEnabled()) {
            log.warn("JFSEncryptedStream.createOutputStream() GC " + freeMem + "/" + runtime.maxMemory());
        } // if
        runtime.gc();
        freeMem = runtime.totalMemory() / SPACE_RESERVE;
    } // if
    if ((length < compressionLimit) && (length < freeMem)) {
        result = new JFSEncryptedStream(baseOutputStream, cipher);
    } else {
        if (length < freeMem) {
            if (log.isInfoEnabled()) {
                log.info("JFSEncryptedStream.createOutputStream() not compressing");
            } // if
        } else {
            if (log.isWarnEnabled()) {
                log.warn("JFSEncryptedStream.createOutputStream() due to memory constraints (" + length + "/"
                        + freeMem + ") not compressing");
            } // if
        } // if
        ObjectOutputStream oos = new ObjectOutputStream(baseOutputStream);
        oos.writeByte(COMPRESSION_NONE);
        oos.writeLong(length);
        oos.flush();
        result = baseOutputStream;
        if (cipher != null) {
            result = new CipherOutputStream(result, cipher);
        } // if
    } // if
    return result;
}

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From source file:com.doplgangr.secrecy.filesystem.encryption.AES_ECB_Crypter.java

@Override
public CipherOutputStream getCipherOutputStream(File file, String outputFileName)
        throws SecrecyCipherStreamException, FileNotFoundException {
    Cipher c;/* w  w  w.  ja va2  s  .  com*/
    try {
        c = Cipher.getInstance(mode);
    } catch (NoSuchAlgorithmException e) {
        throw new SecrecyCipherStreamException("Encryption algorithm not found!");
    } catch (NoSuchPaddingException e) {
        throw new SecrecyCipherStreamException("Selected padding not found!");
    }

    try {
        c.init(Cipher.ENCRYPT_MODE, aesKey);
    } catch (InvalidKeyException e) {
        throw new SecrecyCipherStreamException("Invalid encryption key!");
    }

    String filename = Base64Coder.encodeString(FilenameUtils.removeExtension(file.getName())) + "."
            + FilenameUtils.getExtension(file.getName());
    File outputFile = new File(vaultPath + "/" + filename);

    BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(outputFile),
            Config.BLOCK_SIZE);

    return new CipherOutputStream(bufferedOutputStream, c);
}

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From source file:org.yes.cart.shoppingcart.support.impl.AbstractCryptedTuplizerImpl.java

/**
 * Converts cart object into a String tuple.
 *
 * @param serializable cart/*  w ww . j  a va 2s  . co  m*/
 *
 * @return string
 *
 * @throws CartTuplizationException when cannot convert to string tuple
 */
protected String toToken(final Serializable serializable) throws CartTuplizationException {

    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    synchronized (desCipher) {
        Base64OutputStream base64EncoderStream = new Base64OutputStream(byteArrayOutputStream, true,
                Integer.MAX_VALUE, null); //will be split manually
        CipherOutputStream cipherOutputStream = new CipherOutputStream(base64EncoderStream, desCipher);
        ObjectOutputStream objectOutputStream = null;
        try {
            objectOutputStream = new ObjectOutputStream(cipherOutputStream);
            objectOutputStream.writeObject(serializable);
            objectOutputStream.flush();
            objectOutputStream.close();
        } catch (Throwable ioe) {
            LOG.error(MessageFormat.format("Unable to serialize object {0}", serializable), ioe);
            throw new CartTuplizationException(ioe);
        } finally {
            try {
                if (objectOutputStream != null) {
                    objectOutputStream.close();
                }
                cipherOutputStream.close();
                base64EncoderStream.close();
                byteArrayOutputStream.close();
            } catch (IOException e) {
                LOG.error("Can not close stream", e);
            }
        }
    }

    return byteArrayOutputStream.toString();

}

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