Example usage for javax.crypto CipherInputStream close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closes this input stream and releases any system resources associated with the stream.

Usage

From source file:Main.java

public static void decrypt(String fileIn, String fileOut, byte key[])
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    FileInputStream fis = new FileInputStream(fileIn);
    FileOutputStream fos = new FileOutputStream(fileOut);

    // Length is 32 bytes
    //byte key[] = "1010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100001111000011".getBytes("UTF-8");
    MessageDigest sha = MessageDigest.getInstance("SHA-256");
    key = sha.digest(key);/*from  w w w .  j  av a 2 s  .co  m*/
    SecretKeySpec sks = new SecretKeySpec(key, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, sks);

    CipherInputStream cis = new CipherInputStream(fis, cipher);
    int b;
    byte[] d = new byte[8];
    while ((b = cis.read(d)) != -1) {
        fos.write(d, 0, b);
    }

    fos.flush();
    fos.close();
    cis.close();
}

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From source file:MainClass.java

public static void blowfishEncrypt(String f1, String f2) throws Exception {
    SecretKey key = null;//from w w w.j  a  v a  2  s .  com

    ObjectInputStream keyFile = new ObjectInputStream(new FileInputStream("BlowfishKey.ser"));
    key = (SecretKey) keyFile.readObject();
    keyFile.close();
    Cipher cipher = Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, key);
    CipherInputStream in = new CipherInputStream(new BufferedInputStream(new FileInputStream(f1)), cipher);
    BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(f2));
    int i;
    do {
        i = in.read();
        if (i != -1)
            out.write(i);
    } while (i > 0);
    in.close();
    out.close();
}

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From source file:MainClass.java

public static void desEncrypt(String f1, String f2) throws Exception {
    SecretKey key = null;/*from   w ww  .j  a  va2  s  . c o  m*/

    ObjectInputStream keyFile = new ObjectInputStream(new FileInputStream("DESKey.ser"));
    key = (SecretKey) keyFile.readObject();
    keyFile.close();
    Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, key);
    CipherInputStream in = new CipherInputStream(new BufferedInputStream(new FileInputStream(f1)), cipher);
    BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(f2));
    int i;
    do {
        i = in.read();
        if (i != -1)
            out.write(i);
    } while (i > 0);
    in.close();
    out.close();
}

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From source file:Main.java

private static boolean handleFile(int mode, byte[] key, byte[] iv, String sourceFilePath, String destFilePath) {

    File sourceFile = new File(sourceFilePath);
    File destFile = new File(destFilePath);

    try {/* w  w  w  .ja  v a 2 s. co  m*/
        if (sourceFile.exists() && sourceFile.isFile()) {
            if (!destFile.getParentFile().exists())
                destFile.getParentFile().mkdirs();
            destFile.createNewFile();

            InputStream in = new FileInputStream(sourceFile);
            OutputStream out = new FileOutputStream(destFile);
            Cipher cipher = initCipher(mode, key, iv, AES_CFB_NOPADDING);
            CipherInputStream cin = new CipherInputStream(in, cipher);

            byte[] b = new byte[1024];
            int read = 0;
            while ((read = cin.read(b)) != -1) {
                out.write(b, 0, read);
                out.flush();
            }

            cin.close();
            in.close();
            out.close();

            return true;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return false;
}

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

public static SecretKey decryptShareKey(ShareKeyDBEntry entry, PublicKey pubKey, PrivateKey privKey) {
    SecretKey result = null;/*from  w ww.  j av  a2s . c  o  m*/
    if (entry != null) {
        byte[] encSK = entry.getEncryptedKey(pubKey);
        byte[] sk = new byte[KeyConstants.SYMMETRIC_BLOCK_SIZE];
        try {
            ASYMM_CIPHER.init(Cipher.DECRYPT_MODE, privKey);
            ByteArrayInputStream bis = new ByteArrayInputStream(encSK);
            CipherInputStream cis = new CipherInputStream(bis, ASYMM_CIPHER);
            cis.read(sk);
            cis.close();
            bis.close();
            result = new SecretKeySpec(sk, entry.getAlgorithm());
        } catch (InvalidKeyException e) {
            logger.warn("Exception caught in CryptCore.decryptShareKey", e);
        } catch (IOException e) {
            logger.warn("Exception caught in CryptCore.decryptShareKey", e);
        }
    }
    return result;
}

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From source file:com.dc.util.file.FileSupport.java

private static void copyEncryptedStream(InputStream input, OutputStream output, String key)
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    Cipher dcipher = Cipher.getInstance("AES");
    CipherInputStream cis = null;
    try {//from  w  ww.  j  av  a  2 s.  co  m
        dcipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key.getBytes(), "AES"));
        cis = new CipherInputStream(input, dcipher);
        byte[] buffer = new byte[1024];
        int bytesRead;
        while ((bytesRead = cis.read(buffer)) != -1) {
            output.write(buffer, 0, bytesRead);
        }
        output.flush();
    } finally {
        if (cis != null) {
            cis.close();
        }
    }
}

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From source file:org.openmrs.module.clinicalsummary.io.UploadSummariesTask.java

/**
 * Method that will be called to process the summary collection file. The upload process will unpack the zipped collection of summary files and then
 * decrypt them./*from   w w  w . j av  a  2 s  .  com*/
 *
 * @throws Exception
 */
protected void processSummaries() throws Exception {
    String zipFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_ZIP), ".");
    String encryptedFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_ENCRYPTED),
            ".");

    File file = new File(TaskUtils.getZippedOutputPath(), zipFilename);
    OutputStream outStream = new BufferedOutputStream(new FileOutputStream(file));
    ZipFile encryptedFile = new ZipFile(new File(TaskUtils.getEncryptedOutputPath(), encryptedFilename));

    Enumeration<? extends ZipEntry> entries = encryptedFile.entries();
    while (entries.hasMoreElements()) {
        ZipEntry zipEntry = entries.nextElement();
        String zipEntryName = zipEntry.getName();
        if (!zipEntryName.endsWith(TaskConstants.FILE_TYPE_SAMPLE)
                && !zipEntryName.endsWith(TaskConstants.FILE_TYPE_SECRET)) {
            int count;
            byte[] data = new byte[TaskConstants.BUFFER_SIZE];
            CipherInputStream zipCipherInputStream = new CipherInputStream(
                    encryptedFile.getInputStream(zipEntry), cipher);
            while ((count = zipCipherInputStream.read(data, 0, TaskConstants.BUFFER_SIZE)) != -1) {
                outStream.write(data, 0, count);
            }
            zipCipherInputStream.close();
        }
    }
    outStream.close();

    File outputPath = TaskUtils.getSummaryOutputPath();
    ZipFile zipFile = new ZipFile(file);
    Enumeration<? extends ZipEntry> zipEntries = zipFile.entries();
    while (zipEntries.hasMoreElements()) {
        ZipEntry zipEntry = zipEntries.nextElement();
        processedFilename = zipEntry.getName();
        File f = new File(outputPath, zipEntry.getName());
        // ensure that the parent path exists
        File parent = f.getParentFile();
        if (parent.exists() || parent.mkdirs()) {
            FileCopyUtils.copy(zipFile.getInputStream(zipEntry),
                    new BufferedOutputStream(new FileOutputStream(f)));
        }
    }
}

---

From source file:org.openmrs.module.clinicalsummary.io.DownloadSummariesTask.java

/**
 * Method that will be called to process the summary collection file. Download process will create one zipped and encrypted collection of summary
 * files.//from   w  ww. j av  a 2s  .  c  om
 * <p/>
 * this.passphrase = password;
 *
 * @throws Exception
 */
protected final void processSummaries() throws Exception {
    // TODO: The better approach would be to create zip file and then encrypt it.
    // And then Content of the zip file:
    // * Zipped file of summary files and sql file
    // * Sample file to be used for decryption testing
    String zipFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_ZIP), ".");
    File zipFile = new File(TaskUtils.getZippedOutputPath(), zipFilename);
    ZipOutputStream zipOutStream = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile)));

    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.MONTH, -1);
    Date cutOffDate = null;
    if (BooleanUtils.isTrue(partial)) {
        cutOffDate = calendar.getTime();
    }

    File inputPath = TaskUtils.getSummaryOutputPath();
    File[] files = inputPath.listFiles();
    if (files != null) {
        for (File file : files) {
            processStream(zipOutStream, inputPath.getAbsolutePath(), file, cutOffDate);
        }
    }
    zipOutStream.close();

    String encryptedFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_ENCRYPTED),
            ".");
    File encryptedOutFile = new File(TaskUtils.getEncryptedOutputPath(), encryptedFilename);
    ZipOutputStream encryptedZipOutStream = new ZipOutputStream(
            new BufferedOutputStream(new FileOutputStream(encryptedOutFile)));

    int count;
    byte[] data;
    // add the 16 bytes init vector for the cipher into the output stream
    String secretFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_SECRET), ".");
    ZipEntry ivZipEntry = new ZipEntry(secretFilename);
    encryptedZipOutStream.putNextEntry(ivZipEntry);
    // write the 16 bytes init vector for the cipher into the output stream
    AlgorithmParameters params = cipher.getParameters();
    byte[] initVector = params.getParameterSpec(IvParameterSpec.class).getIV();
    encryptedZipOutStream.write(initVector);
    // add the sample file entry
    String sampleFilename = StringUtils.join(Arrays.asList(filename, TaskConstants.FILE_TYPE_SAMPLE), ".");
    ZipEntry sampleZipEntry = new ZipEntry(sampleFilename);
    encryptedZipOutStream.putNextEntry(sampleZipEntry);
    // write the sample file
    data = new byte[TaskConstants.BUFFER_SIZE];
    String sampleText = "This is sample text inside encrypted document. "
            + "If you see this text, that means your decryption parameters is correct";
    InputStream inStream = new ByteArrayInputStream(sampleText.getBytes());
    CipherInputStream sampleCipherInStream = new CipherInputStream(inStream, cipher);
    while ((count = sampleCipherInStream.read(data, 0, TaskConstants.BUFFER_SIZE)) != -1) {
        encryptedZipOutStream.write(data, 0, count);
    }
    sampleCipherInStream.close();
    // add the zipped summaries
    ZipEntry zipEntry = new ZipEntry(zipFile.getName());
    encryptedZipOutStream.putNextEntry(zipEntry);
    // write the zipped summaries
    data = new byte[TaskConstants.BUFFER_SIZE];
    InputStream zipInStream = new BufferedInputStream(new FileInputStream(zipFile));
    CipherInputStream zipCipherInStream = new CipherInputStream(zipInStream, cipher);
    while ((count = zipCipherInStream.read(data, 0, TaskConstants.BUFFER_SIZE)) != -1) {
        encryptedZipOutStream.write(data, 0, count);
    }
    zipCipherInStream.close();
    encryptedZipOutStream.close();
}

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From source file:craterdog.security.MessageCryptex.java

@Override
public void decryptStream(SecretKey sharedKey, InputStream input, OutputStream output) throws IOException {
    logger.entry();//from  w w  w .  j  a  va  2  s .  c o m
    CipherInputStream cipherInput = null;
    try {
        logger.debug("Creating a special input stream to do the work...");
        cipherInput = decryptionInputStream(sharedKey, input);

        logger.debug("Reading bytes, decrypting them, and writing them out...");
        IOUtils.copy(cipherInput, output);
        output.flush();
    } finally {
        if (cipherInput != null)
            cipherInput.close();
    }
    logger.exit();
}

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From source file:com.cubusmail.server.mail.security.MailPasswordEncryptor.java

public String decryptPassword(byte[] encryptedPassword) {

    Cipher cipher;/*from  ww  w  .  ja  va 2  s.com*/
    try {
        log.debug("decrypt...");
        cipher = Cipher.getInstance(this.algorithm);
        cipher.init(Cipher.DECRYPT_MODE, this.keyPair.getPrivate());

        CipherInputStream cis = new CipherInputStream(new ByteArrayInputStream(encryptedPassword), cipher);
        ByteArrayOutputStream baosDecryptedData = new ByteArrayOutputStream();
        byte[] buffer = new byte[8192];
        int len = 0;
        while ((len = cis.read(buffer)) > 0) {
            baosDecryptedData.write(buffer, 0, len);
        }
        baosDecryptedData.flush();
        cis.close();

        log.debug("...finish");

        return new String(baosDecryptedData.toByteArray());
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw new IllegalStateException(e.getMessage(), e);
    }
}

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